I have converted a polygon shapefile of a forest to a multipatch, and now would like to have the multipatch appear 25m tall. I've added a column 'Height' to the attribute table with the number 25 in each cell.
I was able to view the 25m-high woodland easily when it was just a polygon (through using the extrude function), but am unable to achieve the same now that it has been converted. It only shows the footprint of the woodland, not the entire 3-dimensional mass. Is there a simple solution to this which I am missing?
Also, if using tools such as Skyline or Visibility, does it matter that forest isn't being rendered in 3D?
Additional info: The ultimate aim is to determine how much of the surrounding view will be obstructed by the forest once it has grown to 25m high, through using tools in the Visibility toolbox. The multipatch in question and the initial polygon are floating on a TIN.