When this command is run, the following dialog box will appear. A more detailed description is given below.
Select: The contour line that are going to intervene in the filtering are selected in this section. These contour lines may be selected by two methods.
·Contours: We graphically name the contours to be filtered, via the standard AutoCAD modes of object selection.
·Layers: The layers where the contour lines or polylines to be filtered are to be found are selected.
Add: If this option is marked, MDT will enter vertices in the polyline in any segments whose length is greater than the value entered in the Distance control. It will therefore be impossible for there to be polyline segments whose length is greater than that distance.
Delete: If this option is marked, MDT will use the following algorithm to eliminate vertices:
For a vertex on a polyline to be eliminated, two conditions must be satisfied:
The distance from the previous and next points cannot be greater than the distance specified in the Distance control.
The angles formed by the previous and next points with respect to the vertex cannot be greater than the value entered in the Angle control.
TcpMDT
