How would You make a workspace that does this?
If it is fast and can do very large datsets it is definitely a big plus...
Se also
https://knowledge.safe.com/idea/46222/new-interpolation-type-maximum-in-rasterresampler.html
Solved
How to keep maximum values when resampling a raster?
+2- Contributor
Best answer by takashi
Hi @vgurra, there seems not to be an efficient way to do that in the current FME, but the PointCloudStatsRasterizer from FME Hub with a preceding PointCloudCombiner could be a workaround in the interim. Assuming the source raster has a single band representing a terrain model, after transforming the raster into a point cloud with a PointCloudCombiner, apply the PointCloudStatsRasterizer with these parameters.
- Component to Rasterize: z
- Statistics Calculation Mode: maximum
- X Cell Spacing: <x cell spacing for resampling>
- Y Cell Spacing: <y cell spacing for resampling>
Hope this helps.
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- Best Answer
Hi @vgurra, there seems not to be an efficient way to do that in the current FME, but the PointCloudStatsRasterizer from FME Hub with a preceding PointCloudCombiner could be a workaround in the interim. Assuming the source raster has a single band representing a terrain model, after transforming the raster into a point cloud with a PointCloudCombiner, apply the PointCloudStatsRasterizer with these parameters.
- Component to Rasterize: z
- Statistics Calculation Mode: maximum
- X Cell Spacing: <x cell spacing for resampling>
- Y Cell Spacing: <y cell spacing for resampling>
Hope this helps.
+2- Contributor
Hi @vgurra, there seems not to be an efficient way to do that in the current FME, but the PointCloudStatsRasterizer from FME Hub with a preceding PointCloudCombiner could be a workaround in the interim. Assuming the source raster has a single band representing a terrain model, after transforming the raster into a point cloud with a PointCloudCombiner, apply the PointCloudStatsRasterizer with these parameters.
- Component to Rasterize: z
- Statistics Calculation Mode: maximum
- X Cell Spacing: <x cell spacing for resampling>
- Y Cell Spacing: <y cell spacing for resampling>
Hope this helps.
Thanks a lot! I would not have found that solution myself.