I created a 0.1 acre hexagonal grid and am trying to produce a heat map based on the respective polygon area that are found within a hexagon. I am using the Join Attribute by location (Summary) tool, but am having some problems with the output. Image 1 shows my hexagonal grid. Image 2 shows the inputs for the Join Attribute by location (Summary) tool. Image 3 shows the outputs. I am a little confused here because it is saying that it has skipped a couple features, but I made sure that there were no polygons outside on my hexagonal grid (I performed a clip earlier on). Image 4 shows the output. Image 5 shows the graduated symbol style that I picked and image 6 shows that output. You can see some of the hexagons are disappearing. I do not believe itthis is because there are no polygons within that hexagon because I do have hexagons with valueshas no value for the summed area of zerothe polygons (image 7NULL). I tried changing themguess I could manually go in and change all NULLS to a value of zero, but the value automatically converts back to NULL. Lastly?? Finally, image 87 and image 98 show a hexagon that does contain a polygon, but is not captured when running the Join Attribute by location Join Attribute by location (Summary)(Summary) tool. Is there something that I am missing? Could this be one of the "missing features". What suggestions are there to fix these issuesthat?
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