Modify with Grade

Description

Modify the height of some of the vertices in a line or polygon using the grade.

Access

Home / Tools / Modify / Grade

Requirements

Solve module

Controls

The following controls are available:

Control	Description
Mode	Vertices - Modify the height of the vertices using the grade computed between two vertices. Vertices and Grade - Modify the height of vertices using a Grade and the height of the From Vertex.
Object	Input the line or polygon whose vertices heights need to be modified. Note: If you pick an open ended line from the model view the From Vertex is automatically filled with the vertex on the end of the line that is closest to the mouse pointer and the To Vertex with the vertex at the other end of the line.
From Vertex	Input a vertex that will be the first vertex in the line or polygon to be updated. Note: This vertex will be used to determine the grade when you use the Vertices mode.
From Height	Use the current height of the vertex or input a height for the vertex. Note: This height is used to compute the height of other vertices.
To Vertex	Input the last vertex in the line or polygon to be updated. Note: This vertex will be used to determine the grade when you use the Vertices mode.
To Height	Use the current height of the vertex or input a height for the vertex. Note: This value is computed when you use the Vertices and Grade mode.
Grade	Select the Grade units then input a grade. Note: This value is computed when you use the Vertices mode.
Update vertices with non-default height	Do one of the following: Select the check box to update the height of the From and To Vertex and all vertices between. Clear the check box to update the height of the From and To Vertex and all vertices between that have default heights.

Notes

Click Solve to compute the height or grade that will be applied. Click OK to modify the vertices heights using the Grade.
Grade is computed using the total length of all segments between the From Vertex and To Vertex, (not the direct distance between the From Vertex and To Vertex).
For an open ended line, the grade is applied between the From Vertex and To Vertex.
For a polygon or closed line, the grade is applied between the From and To vertex in the direction of the line or polygon.
The Grade can only be computed from vertices with a Height.
When using the Vertices and Grade mode, only the From Height can be edited
Heights of the From Vertex and To Vertex will always be modified to the values input or computed in the Modify Grade tool window regardless of the Update vertices with non-default height setting.