Compute the development (profile) in the xy plane of a 3d polyline.
8 Menu: ComputationalCAD Develop polyline
7 Command entry: CC:LINES:DEVELOP
Select a polyline, 2d polyline or 3d polyline consisting exclusively of line segments.
Specify if the development shall be computed for the reverse order of polyline vertices.
<Yes>: Compute the development for the reverse order of polyline vertices.
<No>: Compute the development for the normal order of polyline vertices. (default)
Specify range [Yes/No]:
Specify if you want to develop a specific arc length range of the polyline.
<No>: Compute the development for entire polyline. (default)
<Yes>: Compute the development for an arc length range of the polyline. The following dialog is displayed:
Specify start arc length
Specify the arc length of the polyline from where to start to compute the development. Default is 0.
Specify end arc length
Specify the arc length of the polyline where to stop to compute the development. Expects a positive double value. If greater than the maximum length of the polyline, the development will be computed until the maximum length of the polyline.
Specify z-scaling <1>:
Specify a scaling for the z-heights of the polyline. Expects a positive double value. Default is 1.
Include first derivative (slope)
Specify if the first derivative (profile slope) shall be drawn too.
<Yes>: The first derivative will be drawn together with the development.
<No>: The first derivative will not be drawn. (default)
Specify outfile type
Specify if the output file type.
<DWG>: The output file will be saved in the current dwg format.
<DXF>: The original lines will be saved in the current dxf format. (default)
Depending on the FILEDIA setting, either a file dialog is displayed or the outfile name must be entered directly.
The profile of a polyline is the development of the Z-height over the XY length of the polyline. The command draws the XY projection of the polyline on the X-axis and the Z-height of the polyline on the Y-axis. The development is saved either in AutoCAD dwg or dxf format.
Figure 19: A 3d polyline (red), its development (black) and the first derivative of the development (cyan)
Command line prompt:
Number of vertices : 701.0000
Start arc length : 0.0000
End arc length : 9425.7085
Delta arc length : 9425.7085
Start ground length: 0.0000
End ground length : 8736.6754
Delta ground length: 8736.6754
Minimum slope [%] : -201.0726
at ground length: 4468.3306
Maximum slope [%] : 383.3087
at ground length: 4814.5793
Minimum elevation : 5691.0948
Maximum elevation : 6345.7523
Delta elevation : 654.6575