Hi,
When I create the terrain model, the evelation points are firstly extracted from DWG file, but for some areas in which there are only contours, the contours has to be extracted to DTM files, but the model from contours has so many data points, so that OpenRoads Designer can not operate it smoothly! it is too big!
So, the question is how to reduce the quantity of data points to make the model small with proper way.
Best regards,
Daniel Chen
10/04/2017