topic Working with ExtractMultiValuesToPoints in python in Geoprocessing Questions https://community.esri.com/t5/geoprocessing-questions/working-with-extractmultivaluestopoints-in-python/m-p/227640#M7881 <HTML><HEAD></HEAD><BODY><SPAN>I am trying to incorporate ExtractMultiValuesToPoints tool into a workflow I am automating. I would like to have the script build the input parameters dynamically so that I can work with any number of raster inputs.</SPAN><BR /><BR /><SPAN>The resulting inRasterList variable I have created looks like this:</SPAN><BR /><SPAN>[["elev_gridElev_L1.tif", "elev_gridElev_L1"], ["elev_gridElev_L2.tif", "elev_gridElev_L2"], ["elev_gridElev_L3.tif", "elev_gridElev_L3"], ["elev_gridElev_L4.tif", "elev_gridElev_L4"]]</SPAN><BR /><BR /><SPAN>When I copy and paste this string into the tool call it performs as expected:</SPAN><BR /><SPAN>ExtractMultiValuesToPoints(pointFile, [["elev_gridElev_L1.tif", "elev_gridElev_L1"], ["elev_gridElev_L2.tif", "elev_gridElev_L2"], ["elev_gridElev_L3.tif", "elev_gridElev_L3"], ["elev_gridElev_L4.tif", "elev_gridElev_L4"]], "NONE")</SPAN><BR /><BR /><SPAN>If I replace the inRasterList with a variable name it fails with the following error:</SPAN><BR /><SPAN>inRasterList = [["elev_gridElev_L1.tif", "elev_gridElev_L1"], ["elev_gridElev_L2.tif", "elev_gridElev_L2"], ["elev_gridElev_L3.tif", "elev_gridElev_L3"], ["elev_gridElev_L4.tif", "elev_gridElev_L4"]]</SPAN><BR /><BR /><SPAN>ExtractMultiValuesToPoints(pointFile, inRasterList, "NONE")</SPAN><BR /><BR /><SPAN>arcgisscripting.ExecuteError: Failed to execute. Parameters are not valid.</SPAN><BR /><SPAN>ERROR 000859: The required parameter Input rasters is empty, or is not the type of Extract Values.</SPAN><BR /><BR /><SPAN>If anyone recognizes this problem or has any suggestions it would be greatly appreciated. If I can't solve this I will have to abandon the use of this tool in my final product.</SPAN></BODY></HTML> Fri, 12 Aug 2011 15:06:37 GMT AllWeatherHeather 2011-08-12T15:06:37Z Working with ExtractMultiValuesToPoints in python https://community.esri.com/t5/geoprocessing-questions/working-with-extractmultivaluestopoints-in-python/m-p/227640#M7881 <HTML><HEAD></HEAD><BODY><SPAN>I am trying to incorporate ExtractMultiValuesToPoints tool into a workflow I am automating. I would like to have the script build the input parameters dynamically so that I can work with any number of raster inputs.</SPAN><BR /><BR /><SPAN>The resulting inRasterList variable I have created looks like this:</SPAN><BR /><SPAN>[["elev_gridElev_L1.tif", "elev_gridElev_L1"], ["elev_gridElev_L2.tif", "elev_gridElev_L2"], ["elev_gridElev_L3.tif", "elev_gridElev_L3"], ["elev_gridElev_L4.tif", "elev_gridElev_L4"]]</SPAN><BR /><BR /><SPAN>When I copy and paste this string into the tool call it performs as expected:</SPAN><BR /><SPAN>ExtractMultiValuesToPoints(pointFile, [["elev_gridElev_L1.tif", "elev_gridElev_L1"], ["elev_gridElev_L2.tif", "elev_gridElev_L2"], ["elev_gridElev_L3.tif", "elev_gridElev_L3"], ["elev_gridElev_L4.tif", "elev_gridElev_L4"]], "NONE")</SPAN><BR /><BR /><SPAN>If I replace the inRasterList with a variable name it fails with the following error:</SPAN><BR /><SPAN>inRasterList = [["elev_gridElev_L1.tif", "elev_gridElev_L1"], ["elev_gridElev_L2.tif", "elev_gridElev_L2"], ["elev_gridElev_L3.tif", "elev_gridElev_L3"], ["elev_gridElev_L4.tif", "elev_gridElev_L4"]]</SPAN><BR /><BR /><SPAN>ExtractMultiValuesToPoints(pointFile, inRasterList, "NONE")</SPAN><BR /><BR /><SPAN>arcgisscripting.ExecuteError: Failed to execute. Parameters are not valid.</SPAN><BR /><SPAN>ERROR 000859: The required parameter Input rasters is empty, or is not the type of Extract Values.</SPAN><BR /><BR /><SPAN>If anyone recognizes this problem or has any suggestions it would be greatly appreciated. If I can't solve this I will have to abandon the use of this tool in my final product.</SPAN></BODY></HTML> Fri, 12 Aug 2011 15:06:37 GMT https://community.esri.com/t5/geoprocessing-questions/working-with-extractmultivaluestopoints-in-python/m-p/227640#M7881 AllWeatherHeather 2011-08-12T15:06:37Z Re: Working with ExtractMultiValuesToPoints in python https://community.esri.com/t5/geoprocessing-questions/working-with-extractmultivaluestopoints-in-python/m-p/227641#M7882 <HTML><HEAD></HEAD><BODY><SPAN>Ahhh, I figured it out!</SPAN><BR /><BR /><SPAN>You need to create a "Value list" as the raster input.</SPAN><BR /><BR /><SPAN>inRasterList = arcpy.ValueTable(2)</SPAN><BR /><BR /><SPAN>then in a loop add the rasters you are interested in:</SPAN><BR /><BR /><SPAN>inRasterList.addRow(var1 + var2)</SPAN></BODY></HTML> Sun, 14 Aug 2011 13:55:30 GMT https://community.esri.com/t5/geoprocessing-questions/working-with-extractmultivaluestopoints-in-python/m-p/227641#M7882 AllWeatherHeather 2011-08-14T13:55:30Z