Table of Contents
triangles delete
Description
The Delete of triangles allows removing unwanted surface areas for calculations or visualizations.
Functionality
Deleted triangles can be restored at any time and are therefore only removed temporarily. The view of the terrain is ideal for using the function.
If the triangulation is recalculated, e.g. by inserting additional height points (see Add elevation pointswhich affect the exchanged triangles, the changes are discarded.
Individually
Description
The manual Delete of individual triangles allows you to remove them by clicking on the triangle to be deleted. The view should be on From above can be set.
Application
- In the DTM tree, mark the triangulation from which triangles are to be removed and call with the right mouse button triangles delete > individually .
- After calling the function, you can remove the corresponding triangles by clicking on them in the drawing.
- After confirmation with Enter or the right mouse button terminates the function.
Several
Description
This feature allows that Delete of multiple triangles along a polyline. The view should be on From above can be set.
Application
- In the DTM tree, mark the triangulation from which triangles are to be removed and call with the right mouse button triangles delete > several .
- After calling the function, draw a polyline over the triangles to be deleted.
- After confirmation with Enter or the right mouse button terminates the function and all triangles that touch the polyline are deleted.
Inside area
Description
This feature allows that Delete of multiple triangles within a polyline. The view should be on From above can be set.
Application
- In the DTM tree, mark the triangulation from which triangles are to be removed and call with the right mouse button triangles delete > Within range .
- After calling the function, you draw an automatically closed polyline around the triangles to be deleted.
- After confirmation with Enter or the right mouse button terminates the function and all triangles that lie completely within the polyline are deleted.
Outside area
Description
This feature allows that Delete of multiple triangles outside of a polyline. The view should be on From above can be set.
Application
- In the DTM tree, mark the triangulation from which triangles are to be removed and call with the right mouse button triangles delete > Out of range .
- After calling the function, you draw an automatically closed polyline around the triangles that are not to be deleted.
- After confirmation with Enter or the right mouse button terminates the function and all triangles that lie completely outside the polyline are deleted.
Restore some
This function restores individual deleted triangles. To do this, click in the area of the triangle to be restored.
Restore all
This function restores all changes to exchanged and deleted triangles. Whereas the function Recalculate in dialogue Quick-DTM (AutoCAD based) try as much as possible to keep the exchanged triangles.