I am testing the results of Lidar to Raster with 0.5m resolution with ArcGIS 10.3.1 SAGA-GIS and Grass 7. My LAS File consists of regular spaced points with a 0,5m resolution. No coordinate transformation took place. The resulting rasters are shown in the screenshots below. I created the LAS Dataset in ArcGIS by right clicking in the Catalog window in ArcGIS >New>Las Dataset. The Tool LAS-Dataset in Raster was used to produce the raster. The ArcGIS Raster cells are shifted and do not center on the point data from the lidar. The rasters created in Grass-GIS by running r.in.lidar > Export to raster or with SAGA-GIS using the workflow lidar to Pointcloud - Pointcloud to Grid > Export Grid to GTIF both create cells whose center is the lidar point.

Can anyone explain this difference and whether it has an negative effect on the validity of the resulting dataset?

ArcGIS Settings: enter image description here

ArcGIS Raster:

ArcGIS Raster

Grass Raster:

Grass Raster

closed as too broad by PolyGeo Jun 9 '17 at 4:26

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    What does lasgrid from LAStools do in comparison to those other two? – LAStools Feb 21 '17 at 9:39
  • Rather than asking why they are different, I think you should establish in one question whether one of them gives the correct result. If so, then your second separate question can be why the other gives the wrong result. – PolyGeo Jun 9 '17 at 4:26
  • This question is not broad, it is just incomplete. It was described the full method used in ArcGIS (despite it would have helped more if the screenshot was entirely in English), but not in the other software used. By 'full method' I mean the tools used and their respective parameterization. For example, in GRASS r.in.lidar the default settings are different from ArcGIS'. That could be the cause, if it was the case using a different method. (/cc @PolyGeo). – Andre Silva Aug 6 '17 at 1:29