Draw 2D Polyline, AutoCAD, VBA, Excel, Coordinates. A friend of mine, who is surveying engineer, asked me recently if it is possible to draw a polyline in AutoCAD using coordinates from an Excel file. To convert the polyline, select it and activate the To Arcs Polyline function.
Signature VBA: RetVal = object.AddPolyline( VerticesList) object Type:,, The objects this method applies to. VerticesList Access: Input-only Type: Variant (array of doubles) An array of OCS coordinates used to create the polyline vertices. Each vertex is represented with three elements, with the first two being the X and Y coordinates in OCS; the third element is ignored. At least two points (six elements) are required for constructing a polyline object. The array size must be a multiple of three. Examples VBA: Sub Example_AddPolyline() ' This example creates a polyline in model space.
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Dim plineObj As AcadPolyline Dim points(0 To 14) As Double ' Define the 2D polyline points points(0) = 1: points(1) = 1: points(2) = 0 points(3) = 1: points(4) = 2: points(5) = 0 points(6) = 2: points(7) = 2: points(8) = 0 points(9) = 3: points(10) = 2: points(11) = 0 points(12) = 4: points(13) = 4: points(14) = 0 ' Create a lightweight Polyline object in model space Set plineObj = ThisDrawing.ModelSpace.AddPolyline(points) ZoomAll End Sub Visual LISP: (vl-load-com) (defun c:Example_AddPolyline();; This example creates a polyline in model space. (setq acadObj (vlax-get-acad-object)) (setq doc (vla-get-ActiveDocument acadObj));; Define the 2D polyline points (setq points (vlax-make-safearray vlax-vbDouble '(0.
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14))) (vlax-safearray-fill points '(1 1 0 1 2 0 2 2 0 3 2 0 4 4 0 ) );; Create a lightweight Polyline object in model space (setq modelSpace (vla-get-ModelSpace doc)) (setq plineObj (vla-AddPolyline modelSpace points)) (vla-ZoomAll acadObj) ).
Autocad drawing commands AutoCAD is a CAD (Computer Aided Design or Computer Aided Drafting) software application for 2D and 3D design and drafting. It was developed and sold by Autodesk, Inc. First released in December 1982, AutoCAD was one of the first CAD programs to run on personal computers, notably the IBM PC.
At that time, most other CAD programs ran on mainframe computers or mini-computers which were connected to a graphics computer terminal for each user. Early releases of AutoCAD used primitive entities — lines, polylines, circles, arcs, and text — to construct more complex objects. Since the mid-1990s, AutoCAD has supported custom objects through its C++ Application Programming Interface (API).
Modern AutoCAD includes a full set of basic solid modeling and 3D tools. With the release of AutoCAD 2007 came improved 3D modeling, which meant better navigation when working in 3D. Moreover, it became easier to edit 3D models.