Latest Contributions by HenriLim

I have managed to publish multiple raster (tiff) under one mosaic dataset as Image Service. I also manage to use ArcGISImageServiceLayer to load the ImageServer above. but how do I retrieve a single raster image based on their name? I tried to set the ImageServiceLayer initialExtent and fullExtent, but ImageServiceLayer always use the Map Extent which always return all the rasters. I also used "setDefinitionExpression" method in ImageServiceLayer but there is nothing being drawn on the map. The closest that I manage to do was: 1. use query on ImageServer with Name = '<raster_name>' 2. Get the Extent of the return record 3. Create ImageServiceParameters with Extent in #2 above as value 4. use exportMapImage and pass in ImageServiceParameters in #3 above. When I check Chrome debugging console, #4 above return the correct image that I want to load. Question is: How do i load the MapImage returned by the method callback into current ImageServiceLayer? ... View more

I have to add two rasters, one bigger than the other, but before adding I have to set the value of NODATA of smaller raster to the value of bigger raster. So i used the following code to do it: import arcpy from arcpy.sa import * arcpy.CheckOutExtension("Spatial") arcpy.env.extent = "MAXOF" arcpy.env.overwriteOutput = True smallerRaster = arcpy.Raster(r"C:\Temp\smallraster.asc") biggerRaster = arcpy.Raster(r"C:\Temp\bigraster.asc") OutputRaster = Con(IsNull(smallerRaster), biggerRaster, smallerRaster + biggerRaster) resultRaster = r"C:\Temp\resultRaster" OutputRaster.save(resultRaster + "_con.tif") arcpy.RasterToASCII_conversion(resultRaster + "_con.tif", resultRaster + "_con.asc") arcpy.gp.Con_sa(IsNull(smallerRaster), 0, resultRaster + "_con_sa.tif", smallerRaster + biggerRaster) arcpy.RasterToASCII_conversion(resultRaster + "_con_sa.tif", resultRaster + "_con_sa.asc") For Con_sa, smaller raster cell value (those that are NODATA) is assigned to NODATA value (in my sample it is -9999) instead of assign with bigger raster cell value. (I tried with constant value of 0, it still assigned them with NODATA) I need to use Con_sa because the script can be executed by more than one instance of application. While Con result is what I needed, the output temporary result will be stored in "<User Folder>\AppData\Local\ESRI\Desktop10.3\SpatialAnalyst\<RASTER_RESULT>", when the script executed in paralel, the CON will fail due to racing condition in code execution (either throw FATAL error) or (Raster cannot be found). So is there away to set the NODATA value to constant value when I'm using Con_sa for my scenario above? I will attach the raster that I used in this example. ... View more

Hi Guys, I created and publish a layer using: MakeRasterCatalogLayer_management SaveToLayerFile_management AddLayerToGroup CreateMapSDDraft AnalyzeForSD StageService_server UploadServiceDefinition_server In the python script I will add relevant layers to the MXD to its respective group: 1. I created a layer from "QRA_Official_Plot_Plans" raster catalog. 2. Save the layer to layer file. 3. Rename the layer to "top_PlotP_VOPAK-S04" 4. Added in the layer into the group "Plot Plans" layer group. Problem is the layer name in MXD file for the mentioned layer is not the same as what is reflected in ArcGIS REST Service JSON. When I opened up the MXD, it shows "top_PlotP_VOPAK-S04" (as shown in TOC.png). But when I go the JSON layer definition, it shows the Raster Catalog name where I queried the layer from (as shown in JSONLayerDefinitino.png). ... View more