Create a line or polygon where a grade from an object intersects with a terrain model.
Home / Tools / Create / Line or Polygon / Grade Terrain Model Intersection
Solve module
The following controls are available:
| Control | Description |
|---|---|
| Name | Type the name to assign to the created object or click  to use the next available auto incremented name. |
| Terrain Model | Input a Terrain Model. |
| Object (or Polygon) | Input the line, alignment or polygon to apply a grade from. |
| Side | Select the side of the object to apply a grade from. |
| Grade | Select the units for the grade, then input the grade. |
| Error | Description |
|---|---|
| The computation has no solution | An intersection can not be computed from any of the vertices in the Object.
|
- Click Solve to preview the line or polygon, then click OK to create the object.
- Click Reverse to apply the grade to the opposite side of the object.
- Grades are applied to all vertices in an object. If the object contains curves, splines or transition curves, configure the curve tolerance in the Create Options to determine how regularly the grade is applied along the curve.
- If an intersection is not found using the first grade, the second grade is used.
- The grade is applied perpendicular from the objects segment. At corners the vertex is placed in the direction of the bisector, however the grade is still applied perpendicular to the objects segment.
- When the command is operating on a picked open linear object, the end closest to the mouse pointer location is considered the start of the line.
- When typing the object, or when the command is operating on a picked polygon or a closed linear object, the direction of the object is used to determine the side the grade is applied from. For clockwise polygons, configure the Side to 'Left' to create the object on the outside.
