This command creates contours directly from a plotted triangulation
network (TIN), optionally creating a Triangulation File (.TIN) in the
process. The user is prompted to pick a sample of the TIN to
process. This
will automatically filter out all other entities that don't reside
on the
layer of the plotted TIN. The triangles must be drawn on the
screen as Lines or 3D Faces. All of the
settings for
Triangulation, Contouring and Labeling, found in Triangulate and
Contour are available. See the Triangulate and Contour
section in the manual for a detailed description of each of these
settings.
It is not recommended to use the "Subdivisional Surfaces" option in the Contour tab when using this routine. Use of this option with this routine may allow the internal reconfiguration of triangles that have been formed along breaklines.
Triangulate and Contour From TIN Lines dialog box
Determining layer name for triangulation lines.
Select sample of triangulation line: pick a tmesh line and press Enter
Select all the triangulation lines to contour.
Select objects: select the
triangulation entities
Reading points... 82
Contouring elevation 404
Inserted 1195 contour vertices.
The user may be prompted for
additional information depending on settings used in the Triangulate
and Contour dialog box.
Pulldown Menu Location: Surface > Contour from...
Keyboard Command: contour
Prerequisite: A triangulation network drawn as lines by
Triangulate & Contour or Draw Triangular Mesh, or
Surface Tools.
File Names: \lsp\contour4.lsp, \lsp\contour4.arx