sketchUcation

Based on a group of triangular irregular network (TIN), reshapes the terrain in a new group made of equilateral triangles (TRN).

Select a group made of surfaces or triangles, go to the Tools menu and select the option 'Terrain reshaper'.

The plugin lists some terrain data. The last line is the most interesting one, it indicates what the triangle side length would be if you want to get about the same number of faces after triangulation. - Destination layer: select the layer on which you want the new terrain to be created. - Create group: select Yes if you want to get a group with the new terrain, selecting “No” will create all faces in the current layer. - Delete original terrain: self-explanatory… It is a good idea to keep the original terrain first to see the difference between old and new, and delete it after - Merge coplanar faces: after completion, the new triangular faces are merged if they have common edges and have the same normal. This process can be slow and may give unexpected results. Please use with caution! If some holes remain, it is quick to redraw the missing faces with the line tool.

• Triangular grid size: this is the length of the side of each equilateral triangle of the network. Enter the recommend length if you want to end up with about the same number of faces than the original terrain, but you are of course free to choose another length. The greater the length, the more inaccurate the shape will be. The smaller the length, the more triangles you’ll get, but the more accurate the new terrain will be.