Compute the development (profile) in the xy plane of a 3d polyline.
Access methods
8 Toolbar:
8 Menu: ComputationalCAD Develop polyline
7 Command entry: CC:LINES:DEVELOP
Dialog
Select polyline:
Select a polyline, 2d polyline or 3d polyline consisting
exclusively of line segments.
Reverse polyline
[Yes/No]:
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)
[Yes/No]:
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
[DWG/DXF]:
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.
Summary
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.
Example
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