https://community.esri.com/t5/python-questions/mosaic-function-mosaicking-tolerance/m-p/1328497#M68636 <P>Hello there. I am using arcpy to develop a toolbox. And I got a confusing problem.</P><P>I have a loop that calculates to get one raster file at a time. For example, in the ith loop I get raster_i. I need to add the value of raster_i to my original raster. Therefore, I write the code like this,</P><PRE>arcpy.management.Mosaic(raster_i, original_raster, "SUM")</PRE><P>But the pixels of raster_i and original_raster do not always line up&nbsp; exactly. I want to make sure that the pixels of original_raster are fixed, and that each time raster_i is added, it is resampled based on the position of the pixel points of the original raster. How do I implement that functionality? I tried parameter mosaicking_tolerance,&nbsp;but I changed the value of this parameter from 0 to 0.5 and the results don't seem to change for me.</P> Wed, 13 Sep 2023 20:58:53 GMT WeiMao 2023-09-13T20:58:53Z https://community.esri.com/t5/python-questions/mosaic-function-mosaicking-tolerance/m-p/1328497#M68636 <P>Hello there. I am using arcpy to develop a toolbox. And I got a confusing problem.</P><P>I have a loop that calculates to get one raster file at a time. For example, in the ith loop I get raster_i. I need to add the value of raster_i to my original raster. Therefore, I write the code like this,</P><PRE>arcpy.management.Mosaic(raster_i, original_raster, "SUM")</PRE><P>But the pixels of raster_i and original_raster do not always line up&nbsp; exactly. I want to make sure that the pixels of original_raster are fixed, and that each time raster_i is added, it is resampled based on the position of the pixel points of the original raster. How do I implement that functionality? I tried parameter mosaicking_tolerance,&nbsp;but I changed the value of this parameter from 0 to 0.5 and the results don't seem to change for me.</P> Wed, 13 Sep 2023 20:58:53 GMT https://community.esri.com/t5/python-questions/mosaic-function-mosaicking-tolerance/m-p/1328497#M68636 WeiMao 2023-09-13T20:58:53Z