https://community.esri.com/t5/arcgis-pro-questions/nodata-values-change-after-saving-in-arcgis-pro/m-p/1205886#M59008 <DIV class=""><DIV class=""><DIV class=""><P>I'm using ArcGIS Pro 3.0 to process a series of .tif files. I'm going to process these images in a program that requires NoData and nan values to be set to a numerical value, like -3. I have code to set these null values to -3, and it works when the output is a geodatabase object, but not when I save it. When I save it to a file folder, it does not change the NoData values at all. Why does this happen, and how can I get my saved outputs to have changed NoData values? Here is my code:</P></DIV></DIV></DIV><P>&nbsp;</P><LI-CODE lang="python">from arcpy.sa import * inras = r"G:\My Drive\work\Northern Animal Ecology Lab\sentinelrst\rst2019\bl\20190129.tif" outCon = Con(IsNull(inras), -3, inras) outCon.save(r"G:\My Drive\work\Northern Animal Ecology Lab\sentinelrst\rst2019\20190129null.tif")</LI-CODE><P>&nbsp;</P> Wed, 24 Aug 2022 15:32:11 GMT BeckB 2022-08-24T15:32:11Z https://community.esri.com/t5/arcgis-pro-questions/nodata-values-change-after-saving-in-arcgis-pro/m-p/1205886#M59008 <DIV class=""><DIV class=""><DIV class=""><P>I'm using ArcGIS Pro 3.0 to process a series of .tif files. I'm going to process these images in a program that requires NoData and nan values to be set to a numerical value, like -3. I have code to set these null values to -3, and it works when the output is a geodatabase object, but not when I save it. When I save it to a file folder, it does not change the NoData values at all. Why does this happen, and how can I get my saved outputs to have changed NoData values? Here is my code:</P></DIV></DIV></DIV><P>&nbsp;</P><LI-CODE lang="python">from arcpy.sa import * inras = r"G:\My Drive\work\Northern Animal Ecology Lab\sentinelrst\rst2019\bl\20190129.tif" outCon = Con(IsNull(inras), -3, inras) outCon.save(r"G:\My Drive\work\Northern Animal Ecology Lab\sentinelrst\rst2019\20190129null.tif")</LI-CODE><P>&nbsp;</P> Wed, 24 Aug 2022 15:32:11 GMT https://community.esri.com/t5/arcgis-pro-questions/nodata-values-change-after-saving-in-arcgis-pro/m-p/1205886#M59008 BeckB 2022-08-24T15:32:11Z https://community.esri.com/t5/arcgis-pro-questions/nodata-values-change-after-saving-in-arcgis-pro/m-p/1205924#M59015 <P>I suspect the raster byte type change during the process</P> Wed, 24 Aug 2022 16:22:44 GMT https://community.esri.com/t5/arcgis-pro-questions/nodata-values-change-after-saving-in-arcgis-pro/m-p/1205924#M59015 DanPatterson 2022-08-24T16:22:44Z