Skip to main content
Solved

Update dem with construction data from point cloud

peteralstorp
Contributor
Forum|alt.badge.img

Hi,

I'm looking for the best way to combine raster-DEM data with construction point cloud data (exists only at some places, not covering the whole DEM ) to output a new modified raster DEM. The point cloud data contains vertexes from the construction (which means it also has ground points - but I'm only interested in the surface, where it overlays the DEM). The point cloud has no info saying what type of point it contains. Can this be modeled in a way that only uses the surfaces from the two datasets or do I need more steps than one in this analysis? Any suggestions?

Best answer by kailinatsafe

Hello @peteralstorp​ , the VectorOnRasterOverlayer should be able to help in this case. Send the point cloud dataset to the "Vector" port, then you can select your input component within the Overlayer parameters.

 

However, before doing so, you may want to filter the point cloud by return/component to get the values you are looking for (ground/nonground/etc). There are some good examples of this in the PointCloudFilter documentation. Best, Kailin.

View original
Did this help you find an answer to your question?

2 replies

kailinatsafe
Safer
Forum|alt.badge.img+21
  • kailinatsafeSafer
  • Safer
  • Best Answer
  • December 14, 2021

Hello @peteralstorp​ , the VectorOnRasterOverlayer should be able to help in this case. Send the point cloud dataset to the "Vector" port, then you can select your input component within the Overlayer parameters.

 

However, before doing so, you may want to filter the point cloud by return/component to get the values you are looking for (ground/nonground/etc). There are some good examples of this in the PointCloudFilter documentation. Best, Kailin.

peteralstorp
Contributor
Forum|alt.badge.img
  • peteralstorpContributor
  • Author
  • Contributor
  • December 20, 2021
kailinatsafe wrote:

Hello @peteralstorp​ , the VectorOnRasterOverlayer should be able to help in this case. Send the point cloud dataset to the "Vector" port, then you can select your input component within the Overlayer parameters.

 

However, before doing so, you may want to filter the point cloud by return/component to get the values you are looking for (ground/nonground/etc). There are some good examples of this in the PointCloudFilter documentation. Best, Kailin.

Thanks, Kailin! This sounds like solution. I like! Will try it out now.

Reply


Helpful Members This Week

Community Stats

31,105
Posts
117,929
Replies
38,858
Members

Latest FME

Terms & ConditionsCookie settings

Cookie policy

We use cookies to enhance and personalize your experience. If you accept you agree to our full cookie policy. Learn more about our cookies.

 
Cookie settings
A product of
Safe Software respectfully acknowledges that we live, learn and work on the traditional and unceded territories of the Kwantlen, Katzie, and Semiahmoo First Nations.