I have made a 3D map in autocad civil 3D. I saved it as a metafile so SWMM can read it. In SWMM i want to simulate rain and calculate the stormwater flow.
My question is when i open the metafile in SWMM i cant see if its still 3D or just 2D. does the program have the information about the map in X, Y, Z direction or can it just read 2D. If its not 3D i cant see how the program can calculate stormwater runoff.
Another question, my map i have done in autocad have all the information about different ground materials like, roads, lakes, houses, woods ans so on. Will SWMM regognize that so i can do the simulation direct on that map or can i only use the map as a backdrop map so i need to draw a new one on top of my autocad map and draw out what areas are woods, roads, rivers ....?
Plz help, im new in this program