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I have 2 fc, a line and a polygon. The polygon has overlapping features. I want to get the total length of the line length in each poly. I have done this in the past with non-overlapping polys by doing a spatial join to get the 'Poly ID' field into the line attribute table and then did a summarize on that and a "Sum" of the 'length' field. However, with overlapping polys, the SJ isn't behaving right. What suggestions are there to do this? I can't separate each poly into a non-overlapping fc to get the SJ to run successfully.
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09-01-2016
08:47 AM
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I haven't set the extent at all and when I just ran a RC command that you mention using "Is Null" it makes the cells in raster 'B' be Null and I want them to have their cell values but am getting an error when I replace "Is Null" with raster 'B'. Here's the syntax of that: Con("nhdperennial"("nhdperennial"),"watsurfinn",wellsnhd)
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08-25-2016
01:46 PM
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I'm trying to combine 2 rasters together and am trying to do it using a 'Con' statement in Raster Calculator. I want to use the full extent raster (raster "A") for most of the values but where there is overlap of the two layers, use raster "B" for those values. So the statement in plain English is "Where raster "B" exists, use those values. In all other places, use Raster "A". My syntax isn't correct as I keep getting results that don't reflect my desire.
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08-25-2016
01:27 PM
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Thanks for the reply and the step by step instructions - very helpful. That's definitely moving in the right direction of what I'm looking for. The issues that I'm dealing with now with using the Summary Statistics tool are that fields that are of type "Date" aren't available to select in the 'Statistics Field(s)' box and that sometimes I have to choose both 'First' and 'Last' of a field to get all of the data for that field (which defeats the purpose of consolidating the attributes into one field only). FYI, I'm using ArcGIS 9.3 but have ways of finding and deleting exact duplicates. The issue with it is that they have to be EXACT, which is how the Arc10 tool is set up too I believe, which isn't my scenario.
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11-20-2012
01:04 PM
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I merged 2 separate shps into one master shp. Now, I have a shp that contains many duplicate records. Each shp contained some records that were also in the other shp as well as some unique records. The ID #'s are the same (that's how I know they're duplicates). I have a field that identifies the duplicate ID #s. However, my problem is that certain fields contain data for some records but not for others and vice versa. My question is how to get any data for an ID into one row, regardless of which layer it comes from. For example, ID 01 in Layer A contains attribute info for fields 1, 2 and 3 but not for fields 4 5 and 6. ID 01 in Layer B contains attribute info for fields 1, 2 and 3but not for fields 4 5 and 6. I want one record that has attribute info for fields 1, 2, 3, 4, 5, and 6 for ID 01. I assume this is a combination of joining and concatenating but so far haven't had any success figuring it out.
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11-20-2012
07:57 AM
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