topic Re: Extract roof forms for municipal development problem in ArcGIS Pro Questions

Extract roof forms for municipal development problem

IsmaelLamas — Sun, 27 Jun 2021 23:18:09 GMT

Hello, I'm following the lesson Extract Roof Forms For Municipal Development and I'm having a problem in Extracting Elevation Surfaces from LAS datasets step. I can't create the three elevation layers and getting the following error:

The error says that the parameters are not valid and shows that there is an error with the bm_common_lib.py script. I do not understand the error very well, I am following all the steps and I have repeated it several times.

Any suggestions would be greatly appreciated.

Thank you so much.

Re: Extract roof forms for municipal development problem

DanPatterson — Sun, 27 Jun 2021 23:37:52 GMT

The lesson link ... Extract roof forms for municipal development | Learn ArcGIS

Re: Extract roof forms for municipal development problem

IsmaelLamas — Sun, 27 Jun 2021 23:49:01 GMT

Thanks for the reply!! That is the link I am following but I have a problem in step 9 of Extract elevation surfaces from LAS datasets. In that step, three rasters should be created and it gives me that error.

Sorry for not explaining the problem well

Re: Extract roof forms for municipal development problem

Tim_McGinnes — Mon, 28 Jun 2021 09:59:03 GMT

Sounds like a data error, or it can't find something. Are you using the sample Portland data that comes with the guide or your own data?

Re: Extract roof forms for municipal development problem

TimOrmsby — Mon, 28 Jun 2021 17:23:55 GMT

Hi Ismael, I forwarded your message to the Learn ArcGIS team. They reproduced the error and have prioritized the lesson for an update. Unfortunately, I don't know exactly when that will happen.

Re: Extract roof forms for municipal development problem

IsmaelLamas — Wed, 30 Jun 2021 20:08:29 GMT

First I tried it with the data from the Portland example and when I did not get it I tried it with other LiDAR data and in both cases I got the same error. I don't really understand why

Re: Extract roof forms for municipal development problem

IsmaelLamas — Wed, 30 Jun 2021 20:09:25 GMT

Thank you so much!!