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lauriehogan
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07-04-2014
11-11-2020
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My Ideas
(0 Idea Submissions)Latest Contributions by lauriehogan
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Jake, Yes, I was double clicking into the Layers and variables in the dialog box... (These are not on my c: drive, but these layers are in arcmap currently. Laurie
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02-23-2015
12:00 PM
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Con ("raster1", 0.0001, "raster1" == 0) was next syntax in raster caculator didnt' work either. and Con ("raster" == 0 , 0.0001, "raster1") Con("elev_967_1","elev_967_1", 0.0001, "VALUE>0.0001") Con("VALUE < 0.001","elev_967_1", 0.0001) None of these worked.
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02-23-2015
11:56 AM
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Thanks for pointing me to the area to check out... I had tried to find that source, but no luck. I'll give these syntax examples a try.
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02-23-2015
11:26 AM
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I'd like to use the raster calculator to convert 0 values in the raster to 0.0001. I was trying to use the syntax below CON ("raster1" == 0, 0.001, "raster1") Based on 39974 - Change a particular value of a raster dataset to zero without changing the other values 1. In ArcMap, navigate to ArcToolbox > Spatial Analyst Tools > Map Algebra and open the Raster Calculator. 2. In the Raster Calculator, input the following syntax: Con("InRaster" == -9999, 0 , "InRaster") All I get is errors in 10.3 (see attachment). I'm not a python user, so could really use help with this syntax. Thanks for the help!
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02-23-2015
11:17 AM
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Hi. I've seen methods posted to fill holes in a raster. I'd like to only fill the hole (noData) in a particular location with new values. I was going to specify the area to fill with a polygon and thought there would be "Fill" using "Mask" - to specify/limit the area to be filled. The area is small and I'd like to just use neighboring pixels with data. I have access to Spatial Analyst extension. Thanks.
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10-25-2013
05:39 AM
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This has been answered on the following thread: Fill no data values areas in DEM Within the Raster Calculator use a similar expression as below: con(isnull(Raster_DEM), focalmean(Raster_DEM, rectangle,4,4), Raster_DEM) This will look for the NoData values in the raster and for those locations find the focal mean. If the value is not NoData then it will keep the value. Q. Does this fill all holes in the raster? What if I only want to fill one hole and leave the rest alone - it seems a different approach/workflow is needed. Appreciate any guidance you might have. Thanks.
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10-24-2013
10:48 AM
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There is now a right-click specific tool to calculate centroids in the Calculate Geometry... into a field. You do not need to use the Field Calculator, but if you did, then you can use a Python expression instead of VBA which is now not supported. Hi. I found this tip for the "calculate geometry" useful. Is there a automated way to update a feature class, with multiple polygons, with the centroid calculations, eliminate the need for right clicking lat, long for all the polygons within the feature class? Thanks in advance for any tips/methods!
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05-25-2011
08:28 AM
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Activity Feed
- Posted Re: Raster Calculator - using the conditional options on Geoprocessing Questions. 02-23-2015 12:00 PM
- Posted Re: Raster Calculator - using the conditional options on Geoprocessing Questions. 02-23-2015 11:56 AM
- Posted Re: Raster Calculator - using the conditional options on Geoprocessing Questions. 02-23-2015 11:26 AM
- Posted Raster Calculator - using the conditional options on Geoprocessing Questions. 02-23-2015 11:17 AM
- Tagged Raster Calculator - using the conditional options on Geoprocessing Questions. 02-23-2015 11:17 AM
- Posted Filling only one hole in a raster on Geoprocessing Questions. 10-25-2013 05:39 AM
- Tagged Filling only one hole in a raster on Geoprocessing Questions. 10-25-2013 05:39 AM
- Tagged Filling only one hole in a raster on Geoprocessing Questions. 10-25-2013 05:39 AM
- Tagged Filling only one hole in a raster on Geoprocessing Questions. 10-25-2013 05:39 AM
- Posted Re: Raster Calculator: Fill in NoData on ArcGIS Spatial Analyst Questions. 10-24-2013 10:48 AM
- Posted Re: Calculate the centroid of a polygon in ArcMap 10.0 on Mapping Questions. 05-25-2011 08:28 AM
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