Skip to content

Build Cut/Fill from Line/Polygon

Use this dialog to build cut and fill from a line or polygon in an application layer. You can choose to build cut and fill lines or a triangle net. For triangle nets, there are two different methods, as described below.

Where can I find the dialog?

In the context menu of the terrain model drawing, select Tools - Build Cut/Fill from Line/Polygon...

Using the Dialog

Note

Polygons with negative winding direction (clockwise) will be reversed before the function is executed. The right side will then face outward, and cut/fill will be built here. If you want to build on the left side of the line (inward), you must change the value in the column for side under Cut/Fill Parameters.

With the Result application layer option, you determine where the result will be placed. By default, the program suggests the active layer. Only application layers open for editing are listed in the dropdown menu.

Procedure

  1. Select line(s)/polygon(s) on the screen.
  2. Choose Build Cut/Fill from Line/Polygon....
  3. Select the desired method for building the triangle net.
  4. Optionally, change settings for building.
  5. Click OK.

Example with one polygon

  1. The starting point is a line or a polygon:

  1. Build triangle net:

  1. Build cut and fill lines:

Triangle Net Building Method

In some cases, the line or polygon may be complex with inner corners close to each other. This cannot be solved with Standard triangulation, and you must then use the other option.

Note

The other option is part of the GeminiSurfaceMaker module.

Example of complex geometry

Building Parameters

The function uses a standard setup, but you can change this as needed.

How many cut and fill points are calculated is controlled by the Profile interval option under the Profile Setup... button. If there are large height differences, you may need to increase the distances to ensure that cut and fill points can be found.

With Cut/Fill Parameters, you can change cut angles for soil and rock, as well as fill angle. You can also add more parameters as needed.

1 (thin black line)* = Layer 1, 2 (thick black line) = Layer 2, A (blue and red line)* = Calculated cut/fill line

You can save the building parameters to a template with Save Template.... This setup can later be loaded again with the Use Template... button.