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Points to Raster cell value assignment


Hi!

I'm trying to create a raster based on high density point features (bathymetry data) from ArcSDE. The thing is that I want to control which features enters the NumericRasterrizer/RasterDEMGenerator (or some other suitable transformer) and gets assigned a cell value. The problem is that the point data is much denser than what I want the resolution of the raster to be. In this case I want FME to pick the point feature with the minimum z-value of all the in-going point features and assign it to the cell and ignore the others. Much like you have in ArcMap where you can can choose the "Cell assignment type" in the "Point to Raster" tool.

Is there a way in FME to solve this?

Thanks!

Best answer by takashi

Hi @poseiron, this seems to be a case where the PointCloudStatsRasterizer (Statistics Calculation Mode: minimum) from FME Hub could be applied to. See this similar question.

How to keep maximum values when resampling a raster?

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3 replies

takashi
Evangelist
  • Best Answer
  • July 12, 2017

Hi @poseiron, this seems to be a case where the PointCloudStatsRasterizer (Statistics Calculation Mode: minimum) from FME Hub could be applied to. See this similar question.

How to keep maximum values when resampling a raster?


  • Author
  • July 14, 2017
takashi wrote:

Hi @poseiron, this seems to be a case where the PointCloudStatsRasterizer (Statistics Calculation Mode: minimum) from FME Hub could be applied to. See this similar question.

How to keep maximum values when resampling a raster?

Thanks for the quick response! I will check it out

 

 


  • Author
  • July 14, 2017
takashi wrote:

Hi @poseiron, this seems to be a case where the PointCloudStatsRasterizer (Statistics Calculation Mode: minimum) from FME Hub could be applied to. See this similar question.

How to keep maximum values when resampling a raster?

It worked! I also had to add a PointCloudCombiner and RasterBandInterpretationCoercer, but now i runs perfectly :) Thanks for your help!

 

 


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