Figure 4.17: TIN Development in WMS
Points were added until the study area was densely populated with point elevations. Breaklines were added to the model to reflect streams and other terrain features as shown on the DRG. In this way, when the triangles are created
they are forced model icon was
to conform to these lines.
To add breaklines, the conceptual
polygon around Area 2. Generic arcs were used Feature Objects, arcs were converted to polygons.
To create the streams, stream arcs (feature type is stream) were generated to make the triangle edges conform to the streamlines as shown in Figure 4.18. The feature objects were then edited to redistribute spacing of points every 75 meters (this number was chosen fairly arbitrarily).