topic Extract Roof Form Error - Projected Polygon feature class expected in ArcGIS Solutions Questions

Extract Roof Form Error - Projected Polygon feature class expected

zuozuofei — Sat, 24 Apr 2021 23:28:00 GMT

Hi, I try to use the Extract Roof Form tool with the city GIS website's footprint shp file, which I want to make into 3D. I already run the process to generate the DSM, DTM, and nDSM, but it has an error unable to use the building footprint and go next. How I should do?

Is all the footprint file must generate by Lidar data? Or there is something wrong with my building footprints data?

I noticed the building footprint is using WGS 1984. Is it the main problem that causes it doesn't work? If it is, how to convert that into projected polygon?

Building footprint sources: https://www.rigis.org/datasets/building-footprints

Thanks

Re: Extract Roof Form Error - Projected Polygon feature class expected

JayantaPoddar — Sun, 25 Apr 2021 05:25:40 GMT

As per the tool help, the input for "Buildings" parameter building footprint polygons.

Honoring the error message, you should Project the data to a Projected Coordinate System, (Optional: store it as a File GDB Feature Class).

Also ensure all other parameters (DSM,DTM,nDSM) are also in same Projected Coordinate System, and overlaying properly with each other.

Re: Extract Roof Form Error - Projected Polygon feature class expected

zuozuofei — Mon, 26 Apr 2021 01:16:53 GMT

It seems still not work very well after I project it and clean it. And it keeps falling for the whole day. No matter simplify or not or only generate a flat roof. Do you know what this fail is? Thanks!

Re: Extract Roof Form Error - Projected Polygon feature class expected

JayantaPoddar — Mon, 26 Apr 2021 03:03:46 GMT

Could you export the existing shapefiles to File GDB Feature Classes? Also define the output Building Polygons as a File GDB Feature Class.

The tool seems to add a suffix to the output filename, which doesn't go quite well with shapefiles.

Re: Extract Roof Form Error - Projected Polygon feature class expected

zuozuofei — Wed, 28 Apr 2021 12:20:03 GMT

Thanks, finally made it.