{"id":2135,"date":"2021-03-05T15:44:41","date_gmt":"2021-03-05T20:44:41","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/autocad\/?post_type=chapter&p=2135"},"modified":"2021-07-19T17:14:34","modified_gmt":"2021-07-19T21:14:34","slug":"polylines","status":"publish","type":"chapter","link":"https:\/\/pressbooks.bccampus.ca\/autocad\/chapter\/polylines\/","title":{"raw":"Module 29: Polylines","rendered":"Module 29: Polylines"},"content":{"raw":"
\r\n

Learning Outcomes<\/p>\r\n\r\n<\/header>\r\n

\r\n\r\nWhen you have completed this module, you will be able to:\r\n
    \r\n \t
  1. Describe a polyline, a 2D polyline, an open polyline, and a closed polyline.<\/li>\r\n \t
  2. Explain how to create, close, and edit a polyline.<\/li>\r\n \t
  3. Describe a donut.<\/li>\r\n \t
  4. Apply the PLINE, PEDIT, DONUT, FILL, EXPLODE, and BOUNDARY commands.<\/li>\r\n \t
  5. Explain how to work in feet and inches.<\/li>\r\n<\/ol>\r\n<\/div>\r\n<\/div>\r\n

    Polylines<\/h1>\r\nA polyline <\/em><\/span>is a series of line and\/or arc segments connected to create a single drawing object. Polylines are created using the PLINE or the PEDIT command from existing straight line segments, arc segments, or a combination of the two. A polyline, usually called a pline<\/em><\/span>, can be edited with the PEDIT command or the Properties window. A polyline can be given a width or can be converted back to the individual drawing object segments by exploding it with the EXPLODE command.\r\n

    <\/a>2D or Lightweight Polyline<\/h2>\r\nSince the release of AutoCAD 14, polylines have been created as lightweight polylines<\/em><\/span>. Sometimes called a 2D polyline<\/em><\/span>, a lightweight polyline is greatly improved over the older heavyweight or 3D polyline<\/span> <\/em>which was used before AutoCAD 14. Using 2D polylines allows AutoCAD to regenerate the drawing faster, which in turn allows you to work faster.\r\n\r\nIn this module, only 2D polylines are taught. 3D polylines are taught in the AutoCAD 3D book. In the AutoCAD 2D book, the terms pline or polyline refers to a 2D polyline. A 3D polyline is called a 3D polyline.\r\n\r\n[caption id=\"attachment_3398\" align=\"aligncenter\" width=\"872\"]\"\" Figure 29-1
    Selecting Objects - All[\/caption]\r\n

    An Open Verses a Closed Polyline<\/h2>\r\nA closed polyline<\/span> <\/em>creates a polygon. A closed polyline or a polygon<\/span> <\/em>has many different uses in an AutoCAD drawing but may appear exactly the same as an open polyline<\/em><\/span>. It is important for you to be able to verify if a polyline is opened or closed. Polygons are assigned a Closed property. To check or change the Closed polyline property, use the Properties window. Figure 29-2 shows the selected polyline as open. On the other hand, Figure 29-3 shows how the polyline property has been changed to close the polyline.\r\n\r\n[caption id=\"attachment_2144\" align=\"aligncenter\" width=\"592\"]\"\" Figure 29-2
    An Open Polyline[\/caption]\r\n\r\n[caption id=\"attachment_2145\" align=\"aligncenter\" width=\"595\"]\"\" Figure 29-3
    A Closed Polyline[\/caption]\r\n

    Creating Polylines from Existing Objects<\/h2>\r\nPolylines can be drawn from scratch, using the PLINE command, or they can be created from existing objects using the PEDIT or the BOUNDARY command. The PEDIT command is used to convert existing lines and arcs into polylines and the BOUNDARY command will create a closed polyline object using enclosed areas of existing lines, arcs, and\/or polylines.\r\n

    Editing Polylines<\/h2>\r\nTo edit a polyline, use the PEDIT command or the Properties window. The AutoCAD 2D book does not cover all of the editing features of PEDIT as they are every extensive. The AutoCAD 3D book covers some of the more advanced options.\r\n

    A Vertex<\/h2>\r\nEach endpoint of a line or an arc segment in a polyline is called a vertex<\/em><\/span>. A polyline changes direction at each vertex. See Figure 29-4.\r\n\r\n[caption id=\"attachment_2146\" align=\"aligncenter\" width=\"305\"]\"\" Figure 29-4
    A Vertex[\/caption]\r\n\r\n
    \r\n

    AutoCAD Command: PLINE<\/p>\r\n\r\n<\/header>\r\n

    \r\n\r\nThe PLINE command is used to create a connected sequence of line and\/or arc segments to form a single object. A closed polyline is a polygon.\r\n\r\nShortcut: PL<\/strong>\r\n\r\n[caption id=\"attachment_2141\" align=\"aligncenter\" width=\"477\"]\"\" Draw Toolbar[\/caption]\r\n\r\n[caption id=\"attachment_2142\" align=\"aligncenter\" width=\"184\"]\"\" Draw Pull-down[\/caption]\r\n\r\n[caption id=\"attachment_2143\" align=\"aligncenter\" width=\"185\"]\"\" Home Ribbon[\/caption]\r\n\r\n<\/div>\r\n<\/div>\r\n
    \r\n

    AutoCAD Command: PEDIT<\/p>\r\n\r\n<\/header>\r\n

    \r\n\r\nThe PEDIT command is used to edit existing polylines or create new polylines.\r\n\r\nShortcut: PE<\/strong>\r\n\r\n[caption id=\"attachment_2147\" align=\"aligncenter\" width=\"289\"]\"\" Modify II Toolbar[\/caption]\r\n\r\n[caption id=\"attachment_2149\" align=\"aligncenter\" width=\"277\"]\"\" Modify Pull-down[\/caption]\r\n\r\n[caption id=\"attachment_2151\" align=\"aligncenter\" width=\"398\"]\"\" Home Ribbon[\/caption]\r\n\r\n<\/div>\r\n<\/div>\r\n
    USER TIP:<\/strong> Try to avoid using the PLINE command to create polylines. They are much easier to create by drawing the individual line and arc objects using the LINE and ARC commands. Make sure that they connect exactly at their endpoints. Using either the PEDIT or BOUNDARY command, create the desired polyline using the lines and arcs you created.<\/div>\r\n

    WORKALONG: Using the PLINE and PEDIT Commands<\/h1>\r\n

    Step 1<\/h2>\r\nStart a new drawing using the template: 2D Layout English<\/span>.\r\n

    Step 2<\/h2>\r\nSave and name the drawing: AutoCAD 2D Workalong 29-1<\/span>.\r\n

    Step 3<\/h2>\r\nOn layer: Object, enter the PLINE command, as shown below, to draw a square 2 inches by 2 inches with a closed 2D polyline. (Figure Step 3)\r\n\r\nCommand: PLINE<\/strong>\r\n\r\nSpecify start point 1,8<\/strong>\r\n\r\nCurrent line-width is 0.0000\r\n\r\n(The width should be 0.)<\/em><\/span>\r\n\r\nSpecify next point or [Arc\/Halfwidth\/Length\/Undo\/Width]: @2,0 <\/strong>\r\n\r\nSpecify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: @0,2 <\/strong>\r\n\r\nSpecify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: @-2,0 <\/strong>\r\n\r\nSpecify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: C<\/strong>\r\n\r\n(Closing the pline.)<\/em><\/span>\r\n\r\nCommand:\r\n\r\n[caption id=\"attachment_2152\" align=\"aligncenter\" width=\"137\"]\"\" Figure Step 3[\/caption]\r\n

    Step 4<\/h2>\r\nWithout entering a command, select the polyline you drew in Step 3. Note how it is one drawing object. (Figure Step 4)\r\n\r\n[caption id=\"attachment_2153\" align=\"aligncenter\" width=\"145\"]\"\" Figure Step 4[\/caption]\r\n

    Step 5<\/h2>\r\nPress Esc to unselect the pline. Enter the PLINE command, as shown below, to draw another polyline inside the first one. In this command, you will be assigning a width of 0.1 to the pline. (Figure Step 5A and 5B)\r\n\r\nCommand: PLINE<\/strong>\r\n\r\nSpecify start point: (mid) <\/em>P1<\/strong>\r\n\r\nCurrent line-width is 0.0000\r\n\r\nSpecify next point or [Arc\/Halfwidth\/Length\/Undo\/Width]: W<\/strong>\r\n\r\nSpecify starting width <0.000>: 0.1<\/strong>\r\n\r\n(Setting the width of the polyline to 0.1.)<\/em><\/span>\r\n\r\nSpecify ending width <0.1000>:\r\n\r\n(Press enter to set both ends of the pline to the same width.)<\/em><\/span>\r\n\r\nSpecify next point or [Arc\/Halfwidth\/Length\/Undo\/Width]: (mid)<\/span> <\/em>P2 <\/strong>\r\n\r\nSpecify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: (mid) <\/em><\/span>P3 <\/strong>\r\n\r\nSpecify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: (mid) <\/em><\/span>P4 <\/strong>\r\n\r\nSpecify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: C <\/strong>\r\n\r\nCommand:\r\n\r\n[caption id=\"attachment_2154\" align=\"aligncenter\" width=\"198\"]\"\" Figure Step 5A[\/caption]\r\n\r\n[caption id=\"attachment_2155\" align=\"aligncenter\" width=\"141\"]\"\" Figure Step 5B[\/caption]\r\n\r\n
    AUTHOR'S COMMENTS: <\/strong>Note how a pline can have a 0 width or be assigned a width.<\/div>\r\n

    Step 6<\/h2>\r\nEnter the PEDIT command, as shown below, to change the width of an existing pline. (Figure Step 6A and 6B)\r\n\r\nCommand: PEDIT<\/strong>\r\n\r\nSelect polyline or [Multiple]: P5<\/strong>\r\n\r\nEnter an option [Open\/Join\/Width\/Edit vertex\/Fit\/Spline\/Decurve\/Ltype gen\/Undo]: W<\/strong>\r\n\r\n(Select the Width option.)<\/em><\/span>\r\n\r\nSpecify new width for all segments: 0.05<\/strong>\r\n\r\n(Set the width to 0.05 units.)<\/em><\/span>\r\n\r\nEnter an option [Open\/Join\/Width\/Edit vertex\/Fit\/Spline\/Decurve\/Ltype gen\/Undo]:\r\n\r\nCommand:\r\n\r\n[caption id=\"attachment_2156\" align=\"aligncenter\" width=\"175\"]\"\" Figure Step 6A[\/caption]\r\n\r\n[caption id=\"attachment_2157\" align=\"aligncenter\" width=\"143\"]\"\" Figure Step 6B[\/caption]\r\n

    Step 7<\/h2>\r\nOpen the Properties window. Without entering a command, select the outside polyline. In the Properties window, change the Global width property to 0.035. (Figure Step 7)\r\n\r\n[caption id=\"attachment_2159\" align=\"aligncenter\" width=\"440\"]\"\" Figure Step 7[\/caption]\r\n

    Step 8<\/h2>\r\nEnter the PLINE and PEDIT commands, as shown below, to create an open polyline and then close it. (Figure Step 8A and 8B)\r\n\r\nCommand: PLINE <\/strong>\r\n\r\nSpecify start point: 5,8 <\/strong>Current line-width is 0.04<\/strong>\r\n\r\n(Set the width to 0.04)<\/em><\/span>\r\n\r\nSpecify next point or [Arc\/Halfwidth\/Length\/Undo\/Width]: @2,0 <\/strong>\r\n\r\nSpecify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: @0,2 <\/strong>\r\n\r\nSpecify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: @-2,0 <\/strong>\r\n\r\nSpecify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]:\r\n\r\n(This is an open pline.)<\/em><\/span>\r\n\r\nCommand: PEDIT<\/strong>\r\n\r\nSelect polyline or [Multiple]: P6<\/strong>\r\n\r\nEnter an option [Close\/Join\/Width\/Edit vertex\/Fit\/Spline\/Decurve\/Ltype gen\/Undo]: C<\/strong>\r\n\r\n(Closing the polyline. Note how the last section has been added by this command.)<\/span> <\/em>\r\n\r\nEnter an option [Open\/Join\/Width\/Edit vertex\/Fit\/Spline\/Decurve\/Ltype gen\/Undo]:\r\n\r\nCommand:\r\n\r\n[caption id=\"attachment_2160\" align=\"aligncenter\" width=\"404\"]\"\" Figure Step 8A\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Figure Step 8B[\/caption]\r\n

    Step 9<\/h2>\r\nYour drawing should now appears a shown in the figure. (Figure Step 9)\r\n\r\n[caption id=\"attachment_2161\" align=\"aligncenter\" width=\"407\"]\"\" Figure Step 9[\/caption]\r\n

    Step 10<\/h2>\r\nOn layer: Object<\/span>, draw the object shown in the figure. Using what you learned earlier in the book, draw it using lines and circles. Trim the circles to complete it. Your drawing should now appear as shown in the figure. (Figure Step 10A and 10B)\r\n\r\n[caption id=\"attachment_2162\" align=\"aligncenter\" width=\"600\"]\"\" Figure Step 10A[\/caption]\r\n\r\n[caption id=\"attachment_2163\" align=\"aligncenter\" width=\"411\"]\"\" Figure Step 10B[\/caption]\r\n\r\n
    \r\n\r\nAUTHOR'S COMMENTS: <\/strong>Ensure that you draw the lines tangent at both ends. If you are not sure how to do that, see Module 12. Trim the circles to complete it. See Figure 29-5.\r\n\r\n<\/div>\r\n\r\n[caption id=\"attachment_2164\" align=\"aligncenter\" width=\"189\"]\"\" Figure 29-5[\/caption]\r\n

    Step 11<\/h2>\r\nEnter the PEDIT command, as shown below, to create a polyline using existing objects. (Figure Step 11A and 11B)\r\n\r\nCommand: PEDIT<\/strong>\r\n\r\nSelect polyline or [Multiple]: P7<\/strong>\r\n\r\n(Select one of the objects.)<\/em><\/span>\r\n\r\nObject selected is not a polyline\r\n\r\nDo you want to turn it into one? <Y> Y<\/strong>\r\n\r\nEnter an option [Close\/Join\/Width\/Edit vertex\/Fit\/Spline\/Decurve\/Ltype gen\/Undo]: J<\/strong>\r\n\r\n(Enter the Join option.)<\/em><\/span>\r\n\r\nSelect objects: P8 <\/strong>1 found\r\n\r\nSelect objects: P9 <\/strong>1 found, 2 total\r\n\r\nSelect objects: P10 <\/strong>1 found, 3 total\r\n\r\nSelect objects:\r\n\r\n3 segments added to polyline\r\n\r\n(Joining the 4 objects to form one pline.)<\/em><\/span>\r\n\r\nEnter an option [Open\/Join\/Width\/Edit vertex\/Fit\/Spline\/Decurve\/Ltype gen\/Undo]:\r\n\r\nCommand:\r\n\r\n[caption id=\"attachment_2165\" align=\"aligncenter\" width=\"277\"]\"\" Figure Step 11A[\/caption]\r\n\r\n[caption id=\"attachment_2166\" align=\"aligncenter\" width=\"296\"]\"\" Figure Step 11B[\/caption]\r\n

    Step 12<\/h2>\r\nWithout entering in a command, select the polyline that you created in Step 11. In the Properties window, check to ensure that it is a closed polyline. (Figure Step 12)\r\n\r\n[caption id=\"attachment_2167\" align=\"aligncenter\" width=\"564\"]\"\" Figure Step 12[\/caption]\r\n

    Step 13<\/h2>\r\nEnter the PEDIT command as shown below. Using the ALL object selection method, create a polyline with the joining objects. (Figure Step 13)\r\n\r\nCommand: PE<\/strong>\r\n\r\nSelect polyline or [Multiple]: P11<\/strong>\r\n\r\nObject selected is not a polyline\r\n\r\nDo you want to turn it into one? <Y>\r\n\r\n(Press enter to accept Yes.)<\/em><\/span>\r\n\r\nEnter an option [Close\/Join\/Width\/Edit vertex\/Fit\/Spline\/Decurve\/Ltype gen\/Undo]: J<\/strong>\r\n\r\nSelect objects: ALL<\/strong>\r\n\r\n(Selecting all of the visible objects in the drawing.)<\/em><\/span>\r\n\r\nCommand:\r\n\r\n[caption id=\"attachment_2168\" align=\"aligncenter\" width=\"273\"]\"\" Figure Step 13[\/caption]\r\n\r\n
    \r\n\r\nAUTHOR'S COMMENTS: <\/strong>The PEDIT command will find the objects that are connected exactly at their endpoints and join them to form the polyline.\r\n\r\n<\/div>\r\n

    Step 14<\/h2>\r\nUsing the Properties window, check to ensure that the polyline you created in Step 13 was created and is closed. Your drawing should appear as shown in the figure. (Figure Step 14)\r\n\r\n[caption id=\"attachment_2169\" align=\"aligncenter\" width=\"595\"]\"\" Figure Step 14[\/caption]\r\n

    Step 15<\/h2>\r\nSave and close the drawing.\r\n

    Donuts<\/h2>\r\nA donut<\/span> <\/em>is simply a circular closed polyline, with an assigned width. Donuts are created with the DONUT command. They can be drawn with a width or completely filled in so that they appear as a solid circle. Since a donut is a polyline, it can be edited with the PEDIT command and exploded with the EXPLODE command. See Figure 29-6 for three donut examples.\r\n\r\n[caption id=\"attachment_2172\" align=\"aligncenter\" width=\"296\"]\"\" Figure 29-6
    Donuts[\/caption]\r\n\r\n
    \r\n

    AutoCAD Command: DONUT<\/strong><\/p>\r\n\r\n<\/header>\r\n

    \r\n\r\nThe DONUT command is used to create donuts.\r\n\r\nShortcut: DO<\/strong>\r\n\r\n[caption id=\"attachment_2173\" align=\"aligncenter\" width=\"184\"]\"\" Draw pull-down[\/caption]\r\n\r\n[caption id=\"attachment_2174\" align=\"aligncenter\" width=\"181\"]\"\" Home Ribbon[\/caption]\r\n\r\n<\/div>\r\n<\/div>\r\n
    \r\n

    AutoCAD Command: BOUNDARY<\/strong><\/p>\r\n\r\n<\/header>\r\n

    \r\n\r\nThe BOUNDARY command is used to create a closed polyline using existing objects that form an enclosed area on the drawing.\r\n\r\nShortcut: BO<\/strong>\r\n\r\n[caption id=\"attachment_2175\" align=\"aligncenter\" width=\"184\"]\"\" Draw Pull-down[\/caption]\r\n\r\n[caption id=\"attachment_2176\" align=\"aligncenter\" width=\"287\"]\"\" Home Ribbon[\/caption]\r\n\r\n \r\n\r\n<\/div>\r\n<\/div>\r\n
    \r\n

    AutoCAD Command: FILL<\/strong><\/p>\r\n\r\n<\/header>\r\n

    \r\n\r\nThe FILL command is used to toggle the solid fill display inside polylines, solid, and hatches.\r\n\r\nShortcut: none\r\n\r\n<\/div>\r\n<\/div>\r\n
    \r\n

    AutoCAD Command: EXPLODE<\/strong><\/p>\r\n\r\n<\/header>\r\n

    \r\n\r\nThe EXPLODE command is used to convert polylines plus many other AutoCAD objects back into individual objects.\r\n\r\nShortcut: X<\/strong>\r\n\r\n[caption id=\"attachment_2177\" align=\"aligncenter\" width=\"281\"]\"\" Home Ribbon[\/caption]\r\n\r\n \r\n\r\n[caption id=\"attachment_2178\" align=\"aligncenter\" width=\"219\"]\"\" Modify Pull-down[\/caption]\r\n\r\n \r\n\r\n[caption id=\"attachment_2179\" align=\"aligncenter\" width=\"717\"]\"\" Modify Toolbar[\/caption]\r\n\r\n<\/div>\r\n<\/div>\r\n\r\n[caption id=\"attachment_3399\" align=\"aligncenter\" width=\"645\"]\"\" Figure 29-7
    Object Snap Modes for Polylines[\/caption]\r\n

    WORKALONG: Using the DONUT, FILL, EXPLODE and BOUNDARY Commands<\/h1>\r\n

    Step 1<\/h2>\r\nOpen the drawing: AutoCAD 2D Workalong 29-1<\/span>. Using the SAVEAS command, save the drawing with the name: AutoCAD 2D Workalong 29-2<\/span>. (Figure Step 1)\r\n\r\n[caption id=\"attachment_2183\" align=\"aligncenter\" width=\"411\"]\"\" Figure Step 1[\/caption]\r\n

    Step 2<\/h2>\r\nOn layer: Construction<\/span>, draw a construction line diagonally from corner to corner in both squares as shown in the figure. (Figure Step 2)\r\n\r\n[caption id=\"attachment_2182\" align=\"aligncenter\" width=\"407\"]\"\" Figure Step 2[\/caption]\r\n

    Step 3<\/h2>\r\nSet layer: Object<\/span> as the current layer. Enter the DONUT command, as shown below, to draw two donuts with their centers located in the center of the squares. Snap to the midpoint of the construction lines when locating the centers. (Figure step 3A and 3B)\r\n\r\nCommand: DONUT<\/strong>\r\n\r\nSpecify inside diameter of donut <0.5000>: 0<\/strong>\r\n\r\n(Setting the inside diameter to 0.)<\/em><\/span>\r\n\r\nSpecify outside diameter of donut <0.8000>: 1<\/strong>\r\n\r\n(Setting the outside diameter to 1.)<\/span> <\/em>\r\n\r\nSpecify center of donut or <exit>: (mid) <\/em><\/span>P1 <\/strong>\r\n\r\nSpecify center of donut or <exit>:\r\n\r\nCommand: DONUT<\/strong>\r\n\r\nSpecify inside diameter of donut <0.0000>: .5<\/strong>\r\n\r\n(Setting the inside diameter to 0.5)<\/em><\/span>\r\n\r\nSpecify outside diameter of donut <1.0000>:\r\n\r\n(Press enter to accept default.)<\/em><\/span>\r\n\r\nSpecify center of donut or <exit>: (mid) <\/em><\/span>P2 <\/strong>\r\n\r\nSpecify center of donut or <exit>:\r\n\r\nCommand:\r\n\r\n[caption id=\"attachment_2184\" align=\"aligncenter\" width=\"407\"]\"\" Figure Step 3A[\/caption]\r\n\r\n[caption id=\"attachment_2185\" align=\"aligncenter\" width=\"407\"]\"\" Figure Step 3B[\/caption]\r\n

    Step 4<\/h2>\r\nTurn layer: Construction<\/span> off and enter the commands below to see the results of using the FILL command. (Figure Step 4A and 4B\r\n\r\nCommand: FILL<\/strong>\r\n\r\nEnter mode [ON\/OFF] <ON>: OFF<\/strong>\r\n\r\n(Disabling fill mode.)<\/em><\/span>\r\n\r\nCommand: REGEN<\/strong>\r\n\r\n(Regenerating to display fill mode.)<\/em><\/span>\r\n\r\nREGEN Regenerating model. Command: FILL<\/strong>\r\n\r\nEnter mode [ON\/OFF] <OFF>: ON<\/strong>\r\n\r\n(Enabling fill mode.)<\/em><\/span>\r\n\r\nCommand: REGEN<\/strong>\r\n\r\n(Regenerating to display fill mode.)<\/em><\/span>\r\n\r\nREGEN Regenerating model.\r\n\r\nCommand:\r\n\r\n[caption id=\"attachment_2187\" align=\"aligncenter\" width=\"410\"]\"\" Figure Step 4A[\/caption]\r\n\r\n[caption id=\"attachment_2186\" align=\"aligncenter\" width=\"407\"]\"\" Figure Step 4B[\/caption]\r\n\r\n
    <\/div>\r\n
    \r\n\r\nAUTHOR'S COMMENTS: <\/strong>Enabling and disabling fill can help you become more productive. When fill is disabled, a drawing will regenerate faster. Fill can them be enabled after you complete the drawing.\r\n\r\n<\/div>\r\n

    Step 5<\/h2>\r\nUsing what you learned earlier in the book, mirror the lower object to match the dimensions shown in the figure. (Figure Step 5)\r\n\r\n[caption id=\"attachment_2188\" align=\"aligncenter\" width=\"450\"]\"\" Figure Step 5[\/caption]\r\n

    Step 6<\/h2>\r\nEnter the EXPLODE command, as shown below, to explode the 5 plines back to their individual objects. (Figure Step 6A and 6B)\r\n\r\nCommand: EXPLODE<\/strong>\r\n\r\nSelect objects: P3 <\/strong>1 found\r\n\r\nSelect objects: P4 <\/strong>1 found, 2 total\r\n\r\nSelect objects: P5 <\/strong>1 found, 3 total\r\n\r\nSelect objects: P6 <\/strong>1 found, 4 total\r\n\r\nSelect objects: P7 <\/strong>1 found, 5 total\r\n\r\nSelect objects:\r\n\r\nCommand\r\n\r\n[caption id=\"attachment_2190\" align=\"aligncenter\" width=\"451\"]\"\" Figure Step 6A[\/caption]\r\n\r\n[caption id=\"attachment_2189\" align=\"aligncenter\" width=\"450\"]\"\" Figure Step 6B[\/caption]\r\n\r\n
    \r\n\r\nAUTHOR'S COMMENTS: <\/strong>An exploded pline will lose its assigned width and all plines and donuts will be converted back to lines, circles and arcs.\r\n\r\n<\/div>\r\n

    Step 7<\/h2>\r\nErase the inside arcs and lines from the object on the right as shown in the figure. (Figure Step 7).\r\n\r\n[caption id=\"attachment_2192\" align=\"aligncenter\" width=\"472\"]\"\" Figure Step 7[\/caption]\r\n

    Step 8<\/h2>\r\nCopy the object on the right locating the center of the large radius at X5,Y3.5 and then rotate it -45 degrees as shown in the figure. (Figure Step 8)\r\n\r\n[caption id=\"attachment_2191\" align=\"aligncenter\" width=\"472\"]\"\" Figure Step 8[\/caption]\r\n

    Step 9<\/h2>\r\nMirror and copy the object to match the dimensions as shown in the figure. (Figure Step 9A and 9B)\r\n\r\n[caption id=\"attachment_2194\" align=\"aligncenter\" width=\"282\"]\"\" Figure Step 9A[\/caption]\r\n\r\n[caption id=\"attachment_2193\" align=\"aligncenter\" width=\"466\"]\"\" Figure Step 9B[\/caption]\r\n

    Step 10<\/h2>\r\nSet layer: Boundary<\/span> as the current layer. Enter the BOUNDARY command. It will open the Boundary Creation dialogue box. Ensure that the settings in your dialogue box matches the figure. (Figure Step 10)\r\n\r\n[caption id=\"attachment_2199\" align=\"aligncenter\" width=\"314\"]\"\" Figure Step 10[\/caption]\r\n

    Step 11<\/h2>\r\nClick the Pick Points icon and select the locations P7, P8 and P9 as shown in the figure. (Figure Step 11)\r\n\r\nCommand: BOUNDARY<\/strong>\r\n\r\nPick internal point: Selecting everything... Selecting everything visible...\r\n\r\nAnalyzing the selected data... Analyzing internal islands...\r\n\r\nPick internal point: P7 <\/strong>\r\n\r\nAnalyzing internal islands... Pick internal point: P8<\/strong>\r\n\r\nAnalyzing internal islands... Pick internal point: P9<\/strong>\r\n\r\nBOUNDARY created 3 polylines\r\n\r\nCommand:\r\n\r\n[caption id=\"attachment_2200\" align=\"aligncenter\" width=\"333\"]\"\" Figure Step 11[\/caption]\r\n

    Step 12<\/h2>\r\nNote how the BOUNDARY command creates closed polylines using the boundary of the selected areas. The plines are located on layer: Boundary<\/span>, colored blue. (Figure Step 12)\r\n\r\n[caption id=\"attachment_2201\" align=\"aligncenter\" width=\"271\"]\"\" Figure Step 12[\/caption]\r\n

    Step 13<\/h2>\r\nTo prove that you have created polylines, move them away from the object using the MOVE command as shown in the figure. The exact location where you move them is not important. Using the Properties window, confirm that they are closed polylines. (Figure Step 13)\r\n\r\n[caption id=\"attachment_2202\" align=\"aligncenter\" width=\"500\"]\"\" Figure Step 13[\/caption]\r\n

    Step 14<\/h2>\r\nYour drawing should appear similar to the figure. (Figure Step 14)\r\n\r\n[caption id=\"attachment_2203\" align=\"aligncenter\" width=\"500\"]\"\" Figure Step 14[\/caption]\r\n

    Step 15<\/h2>\r\nSave and close the drawing.\r\n

    Working in Feet and Inches<\/h2>\r\nUp to this point in the book, all working units have been inches or millimeters. They both use the Length Type of Decimals. To work in feet and inches, the first thing you have to do is change the Length Type to Architectural. This is done using the UNITS command. In the Drawing Units dialogue box, pull-down the Length Type box and select Architectural as shown in Figure 29-8.\r\n\r\nPull-down the Length Precision box and select 0'-0 1\/16\" as shown in Figure Step 29-9. The precision can be changed as required. Even though the length units have been set to Architectural, AutoCAD continues to work in inches. Therefore, when a number is entered and nothing else, AutoCAD will assume the number is inches. i.e.\r\n\r\n[caption id=\"attachment_2205\" align=\"aligncenter\" width=\"367\"]\"\" Figure 29-8
    Drawing Units Dialogue Box[\/caption]\r\n\r\n[caption id=\"attachment_2204\" align=\"aligncenter\" width=\"158\"]\"\" Figure 29-9
    Setting Precision[\/caption]\r\n\r\nCommand: LINE<\/strong>\r\n\r\nSpecify first point: 2,2<\/strong>\r\n\r\n(AutoCAD interprets this number as 2\",2\")<\/em><\/span>\r\n\r\nSpecify next point or [Undo]: @4,0<\/strong>\r\n\r\n(AutoCAD interprets this as go 4\" in the X direction.)<\/span>\r\n\r\nSpecify next point or [Undo]:\r\n\r\nCommand:\r\n\r\nTo enter feet and inches, enter a ' (single quote) after the number of feet and a \" (double quote) after the number of inches. For example:\r\n\r\nCommand: LINE<\/strong>\r\n\r\nSpecify first point: 2'3\",4'6\"<\/strong>\r\n\r\n(AutoCAD interprets this number as 2 feet 3 inches.,4 feet 6 inches)<\/em><\/span>\r\n\r\nSpecify next point or [Undo]: @5'2\",0<\/strong>\r\n\r\n(AutoCAD interprets this as go 5 feet 2 inches in the X direction.)<\/em><\/span>\r\n\r\nSpecify next point or [Undo]:\r\n\r\nCommand:\r\n\r\nTo work in fractions of an inch, enter the number as follows: 3'2-1\/2\" <\/strong>or 3'2.5\"<\/strong>\r\n
    MUST KNOW: <\/strong>When using the PEDIT command to convert existing objects into a polyline, the objects must be drawn perfectly with their endpoints meeting exactly. If they overlap, have a gap between them, or are stacked on top of a another, the PEDIT command will not create the polyline.<\/div>\r\n
    \r\n\r\nUSER TIP: <\/strong><\/strong>When editing polylines, it is sometimes easier to use the Properties window rather than the PEDIT command. The Properties window cannot do everything the PEDIT command can do. While a polyline cannot be created using the Properties window, it can do the following:\r\n
      \r\n \t
    1. Change its width.<\/li>\r\n \t
    2. Change the vertex locations.<\/li>\r\n \t
    3. Open or close the pline.\"\"<\/li>\r\n<\/ol>\r\n<\/div>\r\n
      USER TIP: <\/strong>After the text is entered to complete one titleblock, the text can easily be copied to the next drawing. It is much easier to copy the titleblock text and then edit it to describing the drawing then entering new text for each titleblock. Ensure that titleblocks are copied from English units to English units and metric units to metric units.<\/div>\r\n

      Key Principles<\/h1>\r\n
      \r\n

      Key Principles in Module 29<\/p>\r\n\r\n<\/header>\r\n

      \r\n
        \r\n \t
      1. A polyline is a series of line and\/or arc segments connected to create a single object. Polylines can be created using the PLINE command drawing straight line segments, arc segments or a combination of the two. A polyline can be exploded back to its individual objects with the EXPLODE command.<\/li>\r\n \t
      2. A closed polyline creates a polygon. A polygon has many different uses in an AutoCAD drawing but will appear exactly the same as an open polyline. Therefore, it is important to be able to verify if a polyline is opened or closed. This is done using the Properties window.<\/li>\r\n \t
      3. Polylines can be drawn from scratch, using the PLINE command, but it is easier to create them using the PEDIT or BOUNDARY commands from existing objects.<\/li>\r\n \t
      4. AutoCAD always works in inches. If you want to enter numbers in feet and inches, you must change the Length Type settings to Architectural in the Drawing Units dialogue box.<\/li>\r\n<\/ol>\r\n<\/div>\r\n<\/div>\r\n

        Lab Exercise 29-1<\/h1>\r\nTime allowed: 40 minutes.\r\n\r\n\r\n\r\n\r\n
        Drawing Name<\/th>\r\nTemplate<\/th>\r\nUnits<\/th>\r\n<\/tr>\r\n
        AutoCAD 2D Lab 29-1<\/td>\r\n2D Layout Metric<\/td>\r\nMillimeters<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n

        Step 1<\/h2>\r\nOn layer: Object<\/span>, draw the object shown in the figures. (Figure Step 1A and 1B)\r\n\r\n[caption id=\"attachment_2209\" align=\"aligncenter\" width=\"500\"]\"\" Figure Step 1A[\/caption]\r\n\r\n[caption id=\"attachment_2208\" align=\"aligncenter\" width=\"211\"]\"\" Figure Step 1B
        Completed Drawing[\/caption]\r\n\r\n
        AUTHOR'S CONSTRUCTION HINTS: <\/strong>Do your best to complete the lab exercise drawing without using the following hints. If you get stuck and cannot complete it on your own, use the following hint to help you.<\/div>\r\n

        Hint 1<\/h2>\r\nCreate the objects to be arrayed in 3 steps as shown in the following figures. Once they have all be created, you will only have to use the ARRAY command twice to complete the drawing. (Figure Hint 1A, 1B, and 1C)\r\n\r\n[caption id=\"attachment_2213\" align=\"aligncenter\" width=\"600\"]\"\" Figure Hint 1A[\/caption]\r\n\r\n[caption id=\"attachment_2212\" align=\"aligncenter\" width=\"600\"]\"\" Figure Hint 1B[\/caption]\r\n\r\n[caption id=\"attachment_2211\" align=\"aligncenter\" width=\"600\"]\"\" Figure Hint 1C[\/caption]\r\n

        Lab Exercise 29-2<\/h1>\r\nTime allowed: 40 minutes.\r\n\r\n\r\n\r\n\r\n
        Drawing Name<\/th>\r\nTemplate<\/th>\r\nUnits<\/th>\r\n<\/tr>\r\n
        AutoCAD 2D Lab 29-2<\/td>\r\nN\/A<\/td>\r\nMillimeters<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n

        Step 1<\/h2>\r\nOpen drawing: AutoCAD 2D Lab 29-1<\/span>. Using the SAVEAS command, save and name the drawing: AutoCAD 2D Lab 29-2<\/span>. (Figure Step 1)\r\n\r\n[caption id=\"attachment_2215\" align=\"aligncenter\" width=\"281\"]\"\" Figure Step 1[\/caption]\r\n

        Step 2<\/h2>\r\nUsing the PEDIT command and the All method of selecting, create a closed pline from the objects that form the perimeter of the object. Change the pline to layer: Pline. Using the MOVE command, move the pline 125 millimeters in the positive X direction. (Figure Step 2)\r\n\r\n[caption id=\"attachment_2216\" align=\"aligncenter\" width=\"600\"]\"\" Figure Step 2[\/caption]\r\n

        Step 3<\/h2>\r\nUsing the PEDIT command, 6 times, and the pick method of selecting the objects, create 6 closed plines of the slots. Copy the 6 plines 125 millimeters in the positive X direction. Change the layer of the copied plines to layer Pline. (Figure Step 3)\r\n\r\n[caption id=\"attachment_2218\" align=\"aligncenter\" width=\"600\"]\"\" Figure Step 3[\/caption]\r\n

        Step 4<\/h2>\r\nSet layer: Pline<\/span> as the current layer. Using the BOUNDARY command, 7 times, create a pline around and inner shapes to create 7 closed plines. Move the 7 plines 125 millimeters in the positive X direction. (Figure Step 4)\r\n\r\n[caption id=\"attachment_2217\" align=\"aligncenter\" width=\"600\"]\"\" Figure Step 4[\/caption]\r\n

        Step 5<\/h2>\r\nSave and close the drawing.\r\n

        Lab Exercise 29-3<\/h1>\r\nTime allowed: 90 minutes.\r\n\r\n\r\n\r\n\r\n
        Drawing Name<\/th>\r\nTemplate<\/th>\r\nUnits<\/th>\r\n<\/tr>\r\n
        AutoCAD 2D Lab 29-3<\/td>\r\n2D Layout English<\/td>\r\nFeet\/Inches<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n

        Step 1<\/h2>\r\nStart a new drawing using the template shown above.\r\n

        Step 2<\/h2>\r\nUsing the UNITS command, change the linear units to Architectural with a precision of 1\/16\".\r\n

        Step 3<\/h2>\r\nUsing Steps 4 to 9, draw the floor plan of the house shown the figure. Use the LINE command to draw it. Use feet and inches as input units. (Figure Step 3)\r\n\r\n[caption id=\"attachment_2219\" align=\"aligncenter\" width=\"600\"]\"\" Figure Step 3[\/caption]\r\n

        Step 4<\/h2>\r\nOn layer: Floor Plan<\/span>, draw lines around the outside boundary of the house. (Figure Step 4)\r\n\r\n[caption id=\"attachment_2221\" align=\"aligncenter\" width=\"362\"]\"\" Figure Step 4[\/caption]\r\n

        Step 5<\/h2>\r\nOffset the outside boundary 6 inches toward the inside of the house. Trim or extend the lines to clean up the corners. (Figure Step 5)\r\n\r\n[caption id=\"attachment_2222\" align=\"aligncenter\" width=\"362\"]\"\" Figure Step 5[\/caption]\r\n\r\n
        AUTHOR'S COMMENTS: <\/strong>The outside walls are 6\" wide.<\/div>\r\n

        Step 6<\/h2>\r\nOn layer: Construction<\/span>, draw lines in the center location of the inside walls. Use Figure Step 6B to help you. (Figure Step 6A and 6B)\r\n\r\n[caption id=\"attachment_2235\" align=\"aligncenter\" width=\"353\"]\"\" Figure Step 6A[\/caption]\r\n\r\n[caption id=\"attachment_2234\" align=\"aligncenter\" width=\"500\"]\"\" Figure Step 6B[\/caption]\r\n\r\n[caption id=\"attachment_2233\" align=\"aligncenter\" width=\"362\"]\"\" Figure Step 6C[\/caption]\r\n

        Step 7<\/h2>\r\nOffset the center lines 2 inches on each side the centerline to create 4 inch walls. (Figure step 7A and 7B)\r\n\r\n[caption id=\"attachment_2231\" align=\"aligncenter\" width=\"362\"]\"\" Figure Step 7A[\/caption]\r\n\r\n[caption id=\"attachment_2232\" align=\"aligncenter\" width=\"155\"]\"\" Figure Step 7B[\/caption]\r\n\r\n
        AUTHOR'S COMMENTS: <\/strong>The inside walls are 4\" wide.\r\n<\/strong><\/div>\r\n

        Step 8<\/h2>\r\nTurn layer: Construction off. Using the TRIM and EXTEND commands, clean up the corners of all walls and change layer of all wall lines to layer: Floor Plan<\/span>. Figure step 8A and 8B)\r\n\r\n[caption id=\"attachment_2230\" align=\"aligncenter\" width=\"400\"]\"\" Figure Step 8A[\/caption]\r\n\r\n[caption id=\"attachment_2229\" align=\"aligncenter\" width=\"367\"]\"\" Figure Step 8B - Detail[\/caption]\r\n

        Step 9<\/h2>\r\nUsing Figure 9A, 9B and 9C, cut the door openings in the walls. (Figure step 9A, 9B, 9C, and 9D)\r\n\r\n[caption id=\"attachment_2228\" align=\"aligncenter\" width=\"500\"]\"\" Figure Step 9A[\/caption]\r\n\r\nTo draw a door, where the walls are horizontal or vertical , draw a line from the midpoint of the door opening with ortho mode enabled. Offset the line one-half the door width on each side and trim. (Figure Step 9B)\r\n\r\n[caption id=\"attachment_2227\" align=\"aligncenter\" width=\"500\"]\"\" Figure Step 9B[\/caption]\r\n\r\nWhen the walls are inclined, draw a line from a point in space, perpendicular to the line. Move the line by snapping its endpoint to the midpoint of the line. Offset the line by one-half of the door width on each side and trim. (Figure Step 9C and 9D)\r\n\r\n[caption id=\"attachment_2226\" align=\"aligncenter\" width=\"490\"]\"\" Figure Step 9C[\/caption]\r\n\r\n[caption id=\"attachment_2225\" align=\"aligncenter\" width=\"500\"]\"\" Figure Step 9D[\/caption]\r\n

        Step 10<\/h2>\r\nEnable layout: Module Layout C<\/span>. On layer: Viewport, create a viewport and set the scale to 1\/4\"=1'-0\". Lock the display. (Figure Step 10)\r\n\r\n[caption id=\"attachment_2224\" align=\"aligncenter\" width=\"500\"]\"\" Figure Step 10[\/caption]\r\n

        Step 11<\/h2>\r\nSave and close the drawing.","rendered":"
        \n
        \n

        Learning Outcomes<\/p>\n<\/header>\n

        \n

        When you have completed this module, you will be able to:<\/p>\n

          \n
        1. Describe a polyline, a 2D polyline, an open polyline, and a closed polyline.<\/li>\n
        2. Explain how to create, close, and edit a polyline.<\/li>\n
        3. Describe a donut.<\/li>\n
        4. Apply the PLINE, PEDIT, DONUT, FILL, EXPLODE, and BOUNDARY commands.<\/li>\n
        5. Explain how to work in feet and inches.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n

          Polylines<\/h1>\n

          A polyline <\/em><\/span>is a series of line and\/or arc segments connected to create a single drawing object. Polylines are created using the PLINE or the PEDIT command from existing straight line segments, arc segments, or a combination of the two. A polyline, usually called a pline<\/em><\/span>, can be edited with the PEDIT command or the Properties window. A polyline can be given a width or can be converted back to the individual drawing object segments by exploding it with the EXPLODE command.<\/p>\n

          <\/a>2D or Lightweight Polyline<\/h2>\n

          Since the release of AutoCAD 14, polylines have been created as lightweight polylines<\/em><\/span>. Sometimes called a 2D polyline<\/em><\/span>, a lightweight polyline is greatly improved over the older heavyweight or 3D polyline<\/span> <\/em>which was used before AutoCAD 14. Using 2D polylines allows AutoCAD to regenerate the drawing faster, which in turn allows you to work faster.<\/p>\n

          In this module, only 2D polylines are taught. 3D polylines are taught in the AutoCAD 3D book. In the AutoCAD 2D book, the terms pline or polyline refers to a 2D polyline. A 3D polyline is called a 3D polyline.<\/p>\n

          \"\"
          Figure 29-1
          Selecting Objects – All<\/figcaption><\/figure>\n

          An Open Verses a Closed Polyline<\/h2>\n

          A closed polyline<\/span> <\/em>creates a polygon. A closed polyline or a polygon<\/span> <\/em>has many different uses in an AutoCAD drawing but may appear exactly the same as an open polyline<\/em><\/span>. It is important for you to be able to verify if a polyline is opened or closed. Polygons are assigned a Closed property. To check or change the Closed polyline property, use the Properties window. Figure 29-2 shows the selected polyline as open. On the other hand, Figure 29-3 shows how the polyline property has been changed to close the polyline.<\/p>\n

          \"\"
          Figure 29-2
          An Open Polyline<\/figcaption><\/figure>\n
          \"\"
          Figure 29-3
          A Closed Polyline<\/figcaption><\/figure>\n

          Creating Polylines from Existing Objects<\/h2>\n

          Polylines can be drawn from scratch, using the PLINE command, or they can be created from existing objects using the PEDIT or the BOUNDARY command. The PEDIT command is used to convert existing lines and arcs into polylines and the BOUNDARY command will create a closed polyline object using enclosed areas of existing lines, arcs, and\/or polylines.<\/p>\n

          Editing Polylines<\/h2>\n

          To edit a polyline, use the PEDIT command or the Properties window. The AutoCAD 2D book does not cover all of the editing features of PEDIT as they are every extensive. The AutoCAD 3D book covers some of the more advanced options.<\/p>\n

          A Vertex<\/h2>\n

          Each endpoint of a line or an arc segment in a polyline is called a vertex<\/em><\/span>. A polyline changes direction at each vertex. See Figure 29-4.<\/p>\n

          \"\"
          Figure 29-4
          A Vertex<\/figcaption><\/figure>\n
          \n
          \n

          AutoCAD Command: PLINE<\/p>\n<\/header>\n

          \n

          The PLINE command is used to create a connected sequence of line and\/or arc segments to form a single object. A closed polyline is a polygon.<\/p>\n

          Shortcut: PL<\/strong><\/p>\n

          \"\"
          Draw Toolbar<\/figcaption><\/figure>\n
          \"\"
          Draw Pull-down<\/figcaption><\/figure>\n
          \"\"
          Home Ribbon<\/figcaption><\/figure>\n<\/div>\n<\/div>\n
          \n
          \n

          AutoCAD Command: PEDIT<\/p>\n<\/header>\n

          \n

          The PEDIT command is used to edit existing polylines or create new polylines.<\/p>\n

          Shortcut: PE<\/strong><\/p>\n

          \"\"
          Modify II Toolbar<\/figcaption><\/figure>\n
          \"\"
          Modify Pull-down<\/figcaption><\/figure>\n
          \"\"
          Home Ribbon<\/figcaption><\/figure>\n<\/div>\n<\/div>\n
          USER TIP:<\/strong> Try to avoid using the PLINE command to create polylines. They are much easier to create by drawing the individual line and arc objects using the LINE and ARC commands. Make sure that they connect exactly at their endpoints. Using either the PEDIT or BOUNDARY command, create the desired polyline using the lines and arcs you created.<\/div>\n

          WORKALONG: Using the PLINE and PEDIT Commands<\/h1>\n

          Step 1<\/h2>\n

          Start a new drawing using the template: 2D Layout English<\/span>.<\/p>\n

          Step 2<\/h2>\n

          Save and name the drawing: AutoCAD 2D Workalong 29-1<\/span>.<\/p>\n

          Step 3<\/h2>\n

          On layer: Object, enter the PLINE command, as shown below, to draw a square 2 inches by 2 inches with a closed 2D polyline. (Figure Step 3)<\/p>\n

          Command: PLINE<\/strong><\/p>\n

          Specify start point 1,8<\/strong><\/p>\n

          Current line-width is 0.0000<\/p>\n

          (The width should be 0.)<\/em><\/span><\/p>\n

          Specify next point or [Arc\/Halfwidth\/Length\/Undo\/Width]: @2,0 <\/strong><\/p>\n

          Specify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: @0,2 <\/strong><\/p>\n

          Specify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: @-2,0 <\/strong><\/p>\n

          Specify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: C<\/strong><\/p>\n

          (Closing the pline.)<\/em><\/span><\/p>\n

          Command:<\/p>\n

          \"\"
          Figure Step 3<\/figcaption><\/figure>\n

          Step 4<\/h2>\n

          Without entering a command, select the polyline you drew in Step 3. Note how it is one drawing object. (Figure Step 4)<\/p>\n

          \"\"
          Figure Step 4<\/figcaption><\/figure>\n

          Step 5<\/h2>\n

          Press Esc to unselect the pline. Enter the PLINE command, as shown below, to draw another polyline inside the first one. In this command, you will be assigning a width of 0.1 to the pline. (Figure Step 5A and 5B)<\/p>\n

          Command: PLINE<\/strong><\/p>\n

          Specify start point: (mid) <\/em>P1<\/strong><\/p>\n

          Current line-width is 0.0000<\/p>\n

          Specify next point or [Arc\/Halfwidth\/Length\/Undo\/Width]: W<\/strong><\/p>\n

          Specify starting width <0.000>: 0.1<\/strong><\/p>\n

          (Setting the width of the polyline to 0.1.)<\/em><\/span><\/p>\n

          Specify ending width <0.1000>:<\/p>\n

          (Press enter to set both ends of the pline to the same width.)<\/em><\/span><\/p>\n

          Specify next point or [Arc\/Halfwidth\/Length\/Undo\/Width]: (mid)<\/span> <\/em>P2 <\/strong><\/p>\n

          Specify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: (mid) <\/em><\/span>P3 <\/strong><\/p>\n

          Specify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: (mid) <\/em><\/span>P4 <\/strong><\/p>\n

          Specify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: C <\/strong><\/p>\n

          Command:<\/p>\n

          \"\"
          Figure Step 5A<\/figcaption><\/figure>\n
          \"\"
          Figure Step 5B<\/figcaption><\/figure>\n
          AUTHOR’S COMMENTS: <\/strong>Note how a pline can have a 0 width or be assigned a width.<\/div>\n

          Step 6<\/h2>\n

          Enter the PEDIT command, as shown below, to change the width of an existing pline. (Figure Step 6A and 6B)<\/p>\n

          Command: PEDIT<\/strong><\/p>\n

          Select polyline or [Multiple]: P5<\/strong><\/p>\n

          Enter an option [Open\/Join\/Width\/Edit vertex\/Fit\/Spline\/Decurve\/Ltype gen\/Undo]: W<\/strong><\/p>\n

          (Select the Width option.)<\/em><\/span><\/p>\n

          Specify new width for all segments: 0.05<\/strong><\/p>\n

          (Set the width to 0.05 units.)<\/em><\/span><\/p>\n

          Enter an option [Open\/Join\/Width\/Edit vertex\/Fit\/Spline\/Decurve\/Ltype gen\/Undo]:<\/p>\n

          Command:<\/p>\n

          \"\"
          Figure Step 6A<\/figcaption><\/figure>\n
          \"\"
          Figure Step 6B<\/figcaption><\/figure>\n

          Step 7<\/h2>\n

          Open the Properties window. Without entering a command, select the outside polyline. In the Properties window, change the Global width property to 0.035. (Figure Step 7)<\/p>\n

          \"\"
          Figure Step 7<\/figcaption><\/figure>\n

          Step 8<\/h2>\n

          Enter the PLINE and PEDIT commands, as shown below, to create an open polyline and then close it. (Figure Step 8A and 8B)<\/p>\n

          Command: PLINE <\/strong><\/p>\n

          Specify start point: 5,8 <\/strong>Current line-width is 0.04<\/strong><\/p>\n

          (Set the width to 0.04)<\/em><\/span><\/p>\n

          Specify next point or [Arc\/Halfwidth\/Length\/Undo\/Width]: @2,0 <\/strong><\/p>\n

          Specify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: @0,2 <\/strong><\/p>\n

          Specify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]: @-2,0 <\/strong><\/p>\n

          Specify next point or [Arc\/Close\/Halfwidth\/Length\/Undo\/Width]:<\/p>\n

          (This is an open pline.)<\/em><\/span><\/p>\n

          Command: PEDIT<\/strong><\/p>\n

          Select polyline or [Multiple]: P6<\/strong><\/p>\n

          Enter an option [Close\/Join\/Width\/Edit vertex\/Fit\/Spline\/Decurve\/Ltype gen\/Undo]: C<\/strong><\/p>\n

          (Closing the polyline. Note how the last section has been added by this command.)<\/span> <\/em><\/p>\n

          Enter an option [Open\/Join\/Width\/Edit vertex\/Fit\/Spline\/Decurve\/Ltype gen\/Undo]:<\/p>\n

          Command:<\/p>\n

          \"\"
          Figure Step 8A\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Figure Step 8B<\/figcaption><\/figure>\n

          Step 9<\/h2>\n

          Your drawing should now appears a shown in the figure. (Figure Step 9)<\/p>\n

          \"\"
          Figure Step 9<\/figcaption><\/figure>\n

          Step 10<\/h2>\n

          On layer: Object<\/span>, draw the object shown in the figure. Using what you learned earlier in the book, draw it using lines and circles. Trim the circles to complete it. Your drawing should now appear as shown in the figure. (Figure Step 10A and 10B)<\/p>\n

          \"\"
          Figure Step 10A<\/figcaption><\/figure>\n
          \"\"
          Figure Step 10B<\/figcaption><\/figure>\n
          \n

          AUTHOR’S COMMENTS: <\/strong>Ensure that you draw the lines tangent at both ends. If you are not sure how to do that, see Module 12. Trim the circles to complete it. See Figure 29-5.<\/p>\n<\/div>\n

          \"\"
          Figure 29-5<\/figcaption><\/figure>\n

          Step 11<\/h2>\n

          Enter the PEDIT command, as shown below, to create a polyline using existing objects. (Figure Step 11A and 11B)<\/p>\n

          Command: PEDIT<\/strong><\/p>\n

          Select polyline or [Multiple]: P7<\/strong><\/p>\n

          (Select one of the objects.)<\/em><\/span><\/p>\n

          Object selected is not a polyline<\/p>\n

          Do you want to turn it into one? <Y> Y<\/strong><\/p>\n

          Enter an option [Close\/Join\/Width\/Edit vertex\/Fit\/Spline\/Decurve\/Ltype gen\/Undo]: J<\/strong><\/p>\n

          (Enter the Join option.)<\/em><\/span><\/p>\n

          Select objects: P8 <\/strong>1 found<\/p>\n

          Select objects: P9 <\/strong>1 found, 2 total<\/p>\n

          Select objects: P10 <\/strong>1 found, 3 total<\/p>\n

          Select objects:<\/p>\n

          3 segments added to polyline<\/p>\n

          (Joining the 4 objects to form one pline.)<\/em><\/span><\/p>\n

          Enter an option [Open\/Join\/Width\/Edit vertex\/Fit\/Spline\/Decurve\/Ltype gen\/Undo]:<\/p>\n

          Command:<\/p>\n

          \"\"
          Figure Step 11A<\/figcaption><\/figure>\n
          \"\"
          Figure Step 11B<\/figcaption><\/figure>\n

          Step 12<\/h2>\n

          Without entering in a command, select the polyline that you created in Step 11. In the Properties window, check to ensure that it is a closed polyline. (Figure Step 12)<\/p>\n

          \"\"
          Figure Step 12<\/figcaption><\/figure>\n

          Step 13<\/h2>\n

          Enter the PEDIT command as shown below. Using the ALL object selection method, create a polyline with the joining objects. (Figure Step 13)<\/p>\n

          Command: PE<\/strong><\/p>\n

          Select polyline or [Multiple]: P11<\/strong><\/p>\n

          Object selected is not a polyline<\/p>\n

          Do you want to turn it into one? <Y><\/p>\n

          (Press enter to accept Yes.)<\/em><\/span><\/p>\n

          Enter an option [Close\/Join\/Width\/Edit vertex\/Fit\/Spline\/Decurve\/Ltype gen\/Undo]: J<\/strong><\/p>\n

          Select objects: ALL<\/strong><\/p>\n

          (Selecting all of the visible objects in the drawing.)<\/em><\/span><\/p>\n

          Command:<\/p>\n

          \"\"
          Figure Step 13<\/figcaption><\/figure>\n
          \n

          AUTHOR’S COMMENTS: <\/strong>The PEDIT command will find the objects that are connected exactly at their endpoints and join them to form the polyline.<\/p>\n<\/div>\n

          Step 14<\/h2>\n

          Using the Properties window, check to ensure that the polyline you created in Step 13 was created and is closed. Your drawing should appear as shown in the figure. (Figure Step 14)<\/p>\n

          \"\"
          Figure Step 14<\/figcaption><\/figure>\n

          Step 15<\/h2>\n

          Save and close the drawing.<\/p>\n

          Donuts<\/h2>\n

          A donut<\/span> <\/em>is simply a circular closed polyline, with an assigned width. Donuts are created with the DONUT command. They can be drawn with a width or completely filled in so that they appear as a solid circle. Since a donut is a polyline, it can be edited with the PEDIT command and exploded with the EXPLODE command. See Figure 29-6 for three donut examples.<\/p>\n

          \"\"
          Figure 29-6
          Donuts<\/figcaption><\/figure>\n
          \n
          \n

          AutoCAD Command: DONUT<\/strong><\/p>\n<\/header>\n

          \n

          The DONUT command is used to create donuts.<\/p>\n

          Shortcut: DO<\/strong><\/p>\n

          \"\"
          Draw pull-down<\/figcaption><\/figure>\n
          \"\"
          Home Ribbon<\/figcaption><\/figure>\n<\/div>\n<\/div>\n
          \n
          \n

          AutoCAD Command: BOUNDARY<\/strong><\/p>\n<\/header>\n

          \n

          The BOUNDARY command is used to create a closed polyline using existing objects that form an enclosed area on the drawing.<\/p>\n

          Shortcut: BO<\/strong><\/p>\n

          \"\"
          Draw Pull-down<\/figcaption><\/figure>\n
          \"\"
          Home Ribbon<\/figcaption><\/figure>\n

           <\/p>\n<\/div>\n<\/div>\n

          \n
          \n

          AutoCAD Command: FILL<\/strong><\/p>\n<\/header>\n

          \n

          The FILL command is used to toggle the solid fill display inside polylines, solid, and hatches.<\/p>\n

          Shortcut: none<\/p>\n<\/div>\n<\/div>\n

          \n
          \n

          AutoCAD Command: EXPLODE<\/strong><\/p>\n<\/header>\n

          \n

          The EXPLODE command is used to convert polylines plus many other AutoCAD objects back into individual objects.<\/p>\n

          Shortcut: X<\/strong><\/p>\n

          \"\"
          Home Ribbon<\/figcaption><\/figure>\n

           <\/p>\n

          \"\"
          Modify Pull-down<\/figcaption><\/figure>\n

           <\/p>\n

          \"\"
          Modify Toolbar<\/figcaption><\/figure>\n<\/div>\n<\/div>\n
          \"\"
          Figure 29-7
          Object Snap Modes for Polylines<\/figcaption><\/figure>\n

          WORKALONG: Using the DONUT, FILL, EXPLODE and BOUNDARY Commands<\/h1>\n

          Step 1<\/h2>\n

          Open the drawing: AutoCAD 2D Workalong 29-1<\/span>. Using the SAVEAS command, save the drawing with the name: AutoCAD 2D Workalong 29-2<\/span>. (Figure Step 1)<\/p>\n

          \"\"
          Figure Step 1<\/figcaption><\/figure>\n

          Step 2<\/h2>\n

          On layer: Construction<\/span>, draw a construction line diagonally from corner to corner in both squares as shown in the figure. (Figure Step 2)<\/p>\n

          \"\"
          Figure Step 2<\/figcaption><\/figure>\n

          Step 3<\/h2>\n

          Set layer: Object<\/span> as the current layer. Enter the DONUT command, as shown below, to draw two donuts with their centers located in the center of the squares. Snap to the midpoint of the construction lines when locating the centers. (Figure step 3A and 3B)<\/p>\n

          Command: DONUT<\/strong><\/p>\n

          Specify inside diameter of donut <0.5000>: 0<\/strong><\/p>\n

          (Setting the inside diameter to 0.)<\/em><\/span><\/p>\n

          Specify outside diameter of donut <0.8000>: 1<\/strong><\/p>\n

          (Setting the outside diameter to 1.)<\/span> <\/em><\/p>\n

          Specify center of donut or <exit>: (mid) <\/em><\/span>P1 <\/strong><\/p>\n

          Specify center of donut or <exit>:<\/p>\n

          Command: DONUT<\/strong><\/p>\n

          Specify inside diameter of donut <0.0000>: .5<\/strong><\/p>\n

          (Setting the inside diameter to 0.5)<\/em><\/span><\/p>\n

          Specify outside diameter of donut <1.0000>:<\/p>\n

          (Press enter to accept default.)<\/em><\/span><\/p>\n

          Specify center of donut or <exit>: (mid) <\/em><\/span>P2 <\/strong><\/p>\n

          Specify center of donut or <exit>:<\/p>\n

          Command:<\/p>\n

          \"\"
          Figure Step 3A<\/figcaption><\/figure>\n
          \"\"
          Figure Step 3B<\/figcaption><\/figure>\n

          Step 4<\/h2>\n

          Turn layer: Construction<\/span> off and enter the commands below to see the results of using the FILL command. (Figure Step 4A and 4B<\/p>\n

          Command: FILL<\/strong><\/p>\n

          Enter mode [ON\/OFF] <ON>: OFF<\/strong><\/p>\n

          (Disabling fill mode.)<\/em><\/span><\/p>\n

          Command: REGEN<\/strong><\/p>\n

          (Regenerating to display fill mode.)<\/em><\/span><\/p>\n

          REGEN Regenerating model. Command: FILL<\/strong><\/p>\n

          Enter mode [ON\/OFF] <OFF>: ON<\/strong><\/p>\n

          (Enabling fill mode.)<\/em><\/span><\/p>\n

          Command: REGEN<\/strong><\/p>\n

          (Regenerating to display fill mode.)<\/em><\/span><\/p>\n

          REGEN Regenerating model.<\/p>\n

          Command:<\/p>\n

          \"\"
          Figure Step 4A<\/figcaption><\/figure>\n
          \"\"
          Figure Step 4B<\/figcaption><\/figure>\n
          <\/div>\n
          \n

          AUTHOR’S COMMENTS: <\/strong>Enabling and disabling fill can help you become more productive. When fill is disabled, a drawing will regenerate faster. Fill can them be enabled after you complete the drawing.<\/p>\n<\/div>\n

          Step 5<\/h2>\n

          Using what you learned earlier in the book, mirror the lower object to match the dimensions shown in the figure. (Figure Step 5)<\/p>\n

          \"\"
          Figure Step 5<\/figcaption><\/figure>\n

          Step 6<\/h2>\n

          Enter the EXPLODE command, as shown below, to explode the 5 plines back to their individual objects. (Figure Step 6A and 6B)<\/p>\n

          Command: EXPLODE<\/strong><\/p>\n

          Select objects: P3 <\/strong>1 found<\/p>\n

          Select objects: P4 <\/strong>1 found, 2 total<\/p>\n

          Select objects: P5 <\/strong>1 found, 3 total<\/p>\n

          Select objects: P6 <\/strong>1 found, 4 total<\/p>\n

          Select objects: P7 <\/strong>1 found, 5 total<\/p>\n

          Select objects:<\/p>\n

          Command<\/p>\n

          \"\"
          Figure Step 6A<\/figcaption><\/figure>\n
          \"\"
          Figure Step 6B<\/figcaption><\/figure>\n
          \n

          AUTHOR’S COMMENTS: <\/strong>An exploded pline will lose its assigned width and all plines and donuts will be converted back to lines, circles and arcs.<\/p>\n<\/div>\n

          Step 7<\/h2>\n

          Erase the inside arcs and lines from the object on the right as shown in the figure. (Figure Step 7).<\/p>\n

          \"\"
          Figure Step 7<\/figcaption><\/figure>\n

          Step 8<\/h2>\n

          Copy the object on the right locating the center of the large radius at X5,Y3.5 and then rotate it -45 degrees as shown in the figure. (Figure Step 8)<\/p>\n

          \"\"
          Figure Step 8<\/figcaption><\/figure>\n

          Step 9<\/h2>\n

          Mirror and copy the object to match the dimensions as shown in the figure. (Figure Step 9A and 9B)<\/p>\n

          \"\"
          Figure Step 9A<\/figcaption><\/figure>\n
          \"\"
          Figure Step 9B<\/figcaption><\/figure>\n

          Step 10<\/h2>\n

          Set layer: Boundary<\/span> as the current layer. Enter the BOUNDARY command. It will open the Boundary Creation dialogue box. Ensure that the settings in your dialogue box matches the figure. (Figure Step 10)<\/p>\n

          \"\"
          Figure Step 10<\/figcaption><\/figure>\n

          Step 11<\/h2>\n

          Click the Pick Points icon and select the locations P7, P8 and P9 as shown in the figure. (Figure Step 11)<\/p>\n

          Command: BOUNDARY<\/strong><\/p>\n

          Pick internal point: Selecting everything… Selecting everything visible…<\/p>\n

          Analyzing the selected data… Analyzing internal islands…<\/p>\n

          Pick internal point: P7 <\/strong><\/p>\n

          Analyzing internal islands… Pick internal point: P8<\/strong><\/p>\n

          Analyzing internal islands… Pick internal point: P9<\/strong><\/p>\n

          BOUNDARY created 3 polylines<\/p>\n

          Command:<\/p>\n

          \"\"
          Figure Step 11<\/figcaption><\/figure>\n

          Step 12<\/h2>\n

          Note how the BOUNDARY command creates closed polylines using the boundary of the selected areas. The plines are located on layer: Boundary<\/span>, colored blue. (Figure Step 12)<\/p>\n

          \"\"
          Figure Step 12<\/figcaption><\/figure>\n

          Step 13<\/h2>\n

          To prove that you have created polylines, move them away from the object using the MOVE command as shown in the figure. The exact location where you move them is not important. Using the Properties window, confirm that they are closed polylines. (Figure Step 13)<\/p>\n

          \"\"
          Figure Step 13<\/figcaption><\/figure>\n

          Step 14<\/h2>\n

          Your drawing should appear similar to the figure. (Figure Step 14)<\/p>\n

          \"\"
          Figure Step 14<\/figcaption><\/figure>\n

          Step 15<\/h2>\n

          Save and close the drawing.<\/p>\n

          Working in Feet and Inches<\/h2>\n

          Up to this point in the book, all working units have been inches or millimeters. They both use the Length Type of Decimals. To work in feet and inches, the first thing you have to do is change the Length Type to Architectural. This is done using the UNITS command. In the Drawing Units dialogue box, pull-down the Length Type box and select Architectural as shown in Figure 29-8.<\/p>\n

          Pull-down the Length Precision box and select 0′-0 1\/16″ as shown in Figure Step 29-9. The precision can be changed as required. Even though the length units have been set to Architectural, AutoCAD continues to work in inches. Therefore, when a number is entered and nothing else, AutoCAD will assume the number is inches. i.e.<\/p>\n

          \"\"
          Figure 29-8
          Drawing Units Dialogue Box<\/figcaption><\/figure>\n
          \"\"
          Figure 29-9
          Setting Precision<\/figcaption><\/figure>\n

          Command: LINE<\/strong><\/p>\n

          Specify first point: 2,2<\/strong><\/p>\n

          (AutoCAD interprets this number as 2″,2″)<\/em><\/span><\/p>\n

          Specify next point or [Undo]: @4,0<\/strong><\/p>\n

          (AutoCAD interprets this as go 4″ in the X direction.)<\/span><\/p>\n

          Specify next point or [Undo]:<\/p>\n

          Command:<\/p>\n

          To enter feet and inches, enter a ‘ (single quote) after the number of feet and a ” (double quote) after the number of inches. For example:<\/p>\n

          Command: LINE<\/strong><\/p>\n

          Specify first point: 2’3″,4’6″<\/strong><\/p>\n

          (AutoCAD interprets this number as 2 feet 3 inches.,4 feet 6 inches)<\/em><\/span><\/p>\n

          Specify next point or [Undo]: @5’2″,0<\/strong><\/p>\n

          (AutoCAD interprets this as go 5 feet 2 inches in the X direction.)<\/em><\/span><\/p>\n

          Specify next point or [Undo]:<\/p>\n

          Command:<\/p>\n

          To work in fractions of an inch, enter the number as follows: 3’2-1\/2″ <\/strong>or 3’2.5″<\/strong><\/p>\n

          MUST KNOW: <\/strong>When using the PEDIT command to convert existing objects into a polyline, the objects must be drawn perfectly with their endpoints meeting exactly. If they overlap, have a gap between them, or are stacked on top of a another, the PEDIT command will not create the polyline.<\/div>\n
          \n

          USER TIP: <\/strong><\/strong>When editing polylines, it is sometimes easier to use the Properties window rather than the PEDIT command. The Properties window cannot do everything the PEDIT command can do. While a polyline cannot be created using the Properties window, it can do the following:<\/p>\n

            \n
          1. Change its width.<\/li>\n
          2. Change the vertex locations.<\/li>\n
          3. Open or close the pline.\"\"<\/li>\n<\/ol>\n<\/div>\n
            USER TIP: <\/strong>After the text is entered to complete one titleblock, the text can easily be copied to the next drawing. It is much easier to copy the titleblock text and then edit it to describing the drawing then entering new text for each titleblock. Ensure that titleblocks are copied from English units to English units and metric units to metric units.<\/div>\n

            Key Principles<\/h1>\n
            \n
            \n

            Key Principles in Module 29<\/p>\n<\/header>\n

            \n
              \n
            1. A polyline is a series of line and\/or arc segments connected to create a single object. Polylines can be created using the PLINE command drawing straight line segments, arc segments or a combination of the two. A polyline can be exploded back to its individual objects with the EXPLODE command.<\/li>\n
            2. A closed polyline creates a polygon. A polygon has many different uses in an AutoCAD drawing but will appear exactly the same as an open polyline. Therefore, it is important to be able to verify if a polyline is opened or closed. This is done using the Properties window.<\/li>\n
            3. Polylines can be drawn from scratch, using the PLINE command, but it is easier to create them using the PEDIT or BOUNDARY commands from existing objects.<\/li>\n
            4. AutoCAD always works in inches. If you want to enter numbers in feet and inches, you must change the Length Type settings to Architectural in the Drawing Units dialogue box.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n

              Lab Exercise 29-1<\/h1>\n

              Time allowed: 40 minutes.<\/p>\n\n\n\n\n
              Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
              AutoCAD 2D Lab 29-1<\/td>\n2D Layout Metric<\/td>\nMillimeters<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              Step 1<\/h2>\n

              On layer: Object<\/span>, draw the object shown in the figures. (Figure Step 1A and 1B)<\/p>\n

              \"\"
              Figure Step 1A<\/figcaption><\/figure>\n
              \"\"
              Figure Step 1B
              Completed Drawing<\/figcaption><\/figure>\n
              AUTHOR’S CONSTRUCTION HINTS: <\/strong>Do your best to complete the lab exercise drawing without using the following hints. If you get stuck and cannot complete it on your own, use the following hint to help you.<\/div>\n

              Hint 1<\/h2>\n

              Create the objects to be arrayed in 3 steps as shown in the following figures. Once they have all be created, you will only have to use the ARRAY command twice to complete the drawing. (Figure Hint 1A, 1B, and 1C)<\/p>\n

              \"\"
              Figure Hint 1A<\/figcaption><\/figure>\n
              \"\"
              Figure Hint 1B<\/figcaption><\/figure>\n
              \"\"
              Figure Hint 1C<\/figcaption><\/figure>\n

              Lab Exercise 29-2<\/h1>\n

              Time allowed: 40 minutes.<\/p>\n\n\n\n\n
              Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
              AutoCAD 2D Lab 29-2<\/td>\nN\/A<\/td>\nMillimeters<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              Step 1<\/h2>\n

              Open drawing: AutoCAD 2D Lab 29-1<\/span>. Using the SAVEAS command, save and name the drawing: AutoCAD 2D Lab 29-2<\/span>. (Figure Step 1)<\/p>\n

              \"\"
              Figure Step 1<\/figcaption><\/figure>\n

              Step 2<\/h2>\n

              Using the PEDIT command and the All method of selecting, create a closed pline from the objects that form the perimeter of the object. Change the pline to layer: Pline. Using the MOVE command, move the pline 125 millimeters in the positive X direction. (Figure Step 2)<\/p>\n

              \"\"
              Figure Step 2<\/figcaption><\/figure>\n

              Step 3<\/h2>\n

              Using the PEDIT command, 6 times, and the pick method of selecting the objects, create 6 closed plines of the slots. Copy the 6 plines 125 millimeters in the positive X direction. Change the layer of the copied plines to layer Pline. (Figure Step 3)<\/p>\n

              \"\"
              Figure Step 3<\/figcaption><\/figure>\n

              Step 4<\/h2>\n

              Set layer: Pline<\/span> as the current layer. Using the BOUNDARY command, 7 times, create a pline around and inner shapes to create 7 closed plines. Move the 7 plines 125 millimeters in the positive X direction. (Figure Step 4)<\/p>\n

              \"\"
              Figure Step 4<\/figcaption><\/figure>\n

              Step 5<\/h2>\n

              Save and close the drawing.<\/p>\n

              Lab Exercise 29-3<\/h1>\n

              Time allowed: 90 minutes.<\/p>\n\n\n\n\n
              Drawing Name<\/th>\nTemplate<\/th>\nUnits<\/th>\n<\/tr>\n
              AutoCAD 2D Lab 29-3<\/td>\n2D Layout English<\/td>\nFeet\/Inches<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              Step 1<\/h2>\n

              Start a new drawing using the template shown above.<\/p>\n

              Step 2<\/h2>\n

              Using the UNITS command, change the linear units to Architectural with a precision of 1\/16″.<\/p>\n

              Step 3<\/h2>\n

              Using Steps 4 to 9, draw the floor plan of the house shown the figure. Use the LINE command to draw it. Use feet and inches as input units. (Figure Step 3)<\/p>\n

              \"\"
              Figure Step 3<\/figcaption><\/figure>\n

              Step 4<\/h2>\n

              On layer: Floor Plan<\/span>, draw lines around the outside boundary of the house. (Figure Step 4)<\/p>\n

              \"\"
              Figure Step 4<\/figcaption><\/figure>\n

              Step 5<\/h2>\n

              Offset the outside boundary 6 inches toward the inside of the house. Trim or extend the lines to clean up the corners. (Figure Step 5)<\/p>\n

              \"\"
              Figure Step 5<\/figcaption><\/figure>\n
              AUTHOR’S COMMENTS: <\/strong>The outside walls are 6″ wide.<\/div>\n

              Step 6<\/h2>\n

              On layer: Construction<\/span>, draw lines in the center location of the inside walls. Use Figure Step 6B to help you. (Figure Step 6A and 6B)<\/p>\n

              \"\"
              Figure Step 6A<\/figcaption><\/figure>\n
              \"\"
              Figure Step 6B<\/figcaption><\/figure>\n
              \"\"
              Figure Step 6C<\/figcaption><\/figure>\n

              Step 7<\/h2>\n

              Offset the center lines 2 inches on each side the centerline to create 4 inch walls. (Figure step 7A and 7B)<\/p>\n

              \"\"
              Figure Step 7A<\/figcaption><\/figure>\n
              \"\"
              Figure Step 7B<\/figcaption><\/figure>\n
              AUTHOR’S COMMENTS: <\/strong>The inside walls are 4″ wide.
              \n<\/strong><\/div>\n

              Step 8<\/h2>\n

              Turn layer: Construction off. Using the TRIM and EXTEND commands, clean up the corners of all walls and change layer of all wall lines to layer: Floor Plan<\/span>. Figure step 8A and 8B)<\/p>\n

              \"\"
              Figure Step 8A<\/figcaption><\/figure>\n
              \"\"
              Figure Step 8B – Detail<\/figcaption><\/figure>\n

              Step 9<\/h2>\n

              Using Figure 9A, 9B and 9C, cut the door openings in the walls. (Figure step 9A, 9B, 9C, and 9D)<\/p>\n

              \"\"
              Figure Step 9A<\/figcaption><\/figure>\n

              To draw a door, where the walls are horizontal or vertical , draw a line from the midpoint of the door opening with ortho mode enabled. Offset the line one-half the door width on each side and trim. (Figure Step 9B)<\/p>\n

              \"\"
              Figure Step 9B<\/figcaption><\/figure>\n

              When the walls are inclined, draw a line from a point in space, perpendicular to the line. Move the line by snapping its endpoint to the midpoint of the line. Offset the line by one-half of the door width on each side and trim. (Figure Step 9C and 9D)<\/p>\n

              \"\"
              Figure Step 9C<\/figcaption><\/figure>\n
              \"\"
              Figure Step 9D<\/figcaption><\/figure>\n

              Step 10<\/h2>\n

              Enable layout: Module Layout C<\/span>. On layer: Viewport, create a viewport and set the scale to 1\/4″=1′-0″. Lock the display. (Figure Step 10)<\/p>\n

              \"\"
              Figure Step 10<\/figcaption><\/figure>\n

              Step 11<\/h2>\n

              Save and close the drawing.<\/p>\n","protected":false},"author":1154,"menu_order":12,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-2135","chapter","type-chapter","status-publish","hentry"],"part":1909,"_links":{"self":[{"href":"https:\/\/pressbooks.bccampus.ca\/autocad\/wp-json\/pressbooks\/v2\/chapters\/2135","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.bccampus.ca\/autocad\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/pressbooks.bccampus.ca\/autocad\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/autocad\/wp-json\/wp\/v2\/users\/1154"}],"version-history":[{"count":22,"href":"https:\/\/pressbooks.bccampus.ca\/autocad\/wp-json\/pressbooks\/v2\/chapters\/2135\/revisions"}],"predecessor-version":[{"id":3424,"href":"https:\/\/pressbooks.bccampus.ca\/autocad\/wp-json\/pressbooks\/v2\/chapters\/2135\/revisions\/3424"}],"part":[{"href":"https:\/\/pressbooks.bccampus.ca\/autocad\/wp-json\/pressbooks\/v2\/parts\/1909"}],"metadata":[{"href":"https:\/\/pressbooks.bccampus.ca\/autocad\/wp-json\/pressbooks\/v2\/chapters\/2135\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.bccampus.ca\/autocad\/wp-json\/wp\/v2\/media?parent=2135"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/autocad\/wp-json\/pressbooks\/v2\/chapter-type?post=2135"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/autocad\/wp-json\/wp\/v2\/contributor?post=2135"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/autocad\/wp-json\/wp\/v2\/license?post=2135"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}