Hi Forum users, Have been using WAsP map editor for basic digitising, ie large areas of trees (one roughness), lake (another roughness), etc. But now I wish to make a roghness map of a forested area, using the zero plane displacement height method for different coups of trees. So the first question is: 1) How do I create the tile effect (lines with different roughness values joined together) and join them together. If I had say 3 lines of different roughness values that I want to join to a common point, how do I do this please? It's a while since I did the WAsP course and the notes don't give much detail. Like I say up until now I have been just digitising single polygons. 2)For each line I can give it a roughness value and height. Assuming that I am digitising on top of a contour map (.map), if I want to give this area of digitised roughness a ZPDH of 10m and the underlying contours are 300m. Do I just set the height to 10m or 310m? Basically I am wanting to build a map for a reasonably complex forestry situation where I know the different tree heights. So using a similar approach to Delwik etc. Sorry for the long post, trying to be as descriptive as I can. hope someone can help
