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SteveLynch
Esri Regular Contributor
since
07-04-2014
yesterday
883
Posts created
15
Kudos given
66
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291
Kudos received
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My Ideas
(0 Idea Submissions)Latest Contributions by SteveLynch
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have a look in the doc, http://resources.arcgis.com/en/help/main/10.1/#/How_Polygon_To_Raster_works/001200000037000000/ Viz., If priority is specified, and: The feature in question overlaps the cell by less than 50%, and: - The priority is greater than zero, then it is considered. - The priority is equal to zero, then the feature is not considered. Add a field to your polygon feature class and populate it with 1's and use this as the priority field. BTW, from ArcGIS 10 onwards, FeatureToRaster internally calls Point, Polyline or Polygon to Raster. Regards Steve
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11-21-2012
11:16 AM
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TopoToRaster's input can be float, integer or double. The output, however, will always be float (i.e 32 bit) Steve
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11-14-2012
12:05 PM
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Rachel If you also have Geostatistical Analyst and ArcGIS10+ I would suggest that you try Kernel Interpolation With Barriers The advantages include; optional standard error of prediction output and it does not use "line of sight" but rather "shortest distance around the barrier". REgards Steve
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11-08-2012
06:32 AM
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Hi, I tried the input barrier polyline option by converting the polygons to polylines but this didn't work and still interpolated outside the polylines. The barrier option in IDW uses a "line of sight" technique to determine which points are used when making a prediction at a location. Therefore, for example, if you have high values to the left of a barrier and low values to the right then your output will have a clear "split". The mask option that is suggested by m.gasior clips the output after all the interpolation has been done. You have to decide what you want, viz., - predictions should be influenced by the barrier, then use the barrier option - clip the output after interpolation is done then use the mask environment option. Hope this helps Steve
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11-07-2012
02:44 AM
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That equates to a 288 x 288 columns x rows raster, which is small. - What type of raster, Esri grid, img, tiff, etc. - Is the join persisted? - What happens when you throw it into CopyRaster or ExtractByMask? Thanks Steve
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10-24-2012
12:14 PM
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if the field in the raster attribute table is integer then Lookup will create an integer raster and if the field is float then Lookup will create a float field. i.e the type of the field dictates the output raster type Steve
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10-24-2012
09:10 AM
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A few comments... The signature for Con in pre ArcGIS 10 is - Con_sa <in_conditional_raster> <in_true_raster_or_constant> <out_raster> {in_false_raster_or_constant} {where_clause} and from 10 onwards we have output on the left hand side and the signature is - Con (in_conditional_raster, in_true_raster_or_constant, {in_false_raster_or_constant}, {where_clause}) If the geoprocessing tool exists then one need not use it inside the RasterCalculator tool. However, in some cases you can, for example (in ArcGIS10) Con("elev", 0, 1, "value > 1000") - where the cell value > 1000 use 0 else use 1 can be written in Python or in the RasterCalculator as Con(Raster("elev") > 1000, 0, 1) Regards Steve
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10-10-2012
07:47 AM
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the syntax (from the help) Con(in_conditional_raster, in_true_raster_or_constant, {in_false_raster_or_constant}, {where_clause})
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10-09-2012
02:56 PM
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Search for "02-03-2011 06:58 AM" in http://forums.arcgis.com/threads/364...values?p=74323 I.e use FlowAccumulation Steve
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09-20-2012
05:07 AM
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Esther See http://forums.arcgis.com/threads/3644-Generate-a-grid-of-latitude-values?p=74323
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09-19-2012
09:27 AM
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Dean Firstly, what type of precip data, hourly, daily, monthly, annual, mean annual, etc.? Secondly, higher elevation does not always mean more rain, there are rain shadows, for example. So you may need additional info. In studies that I did many years ago I found that distance from the sea and surface roughness also played an important role. Also the rain-bearing direction. An extensive literature search will help 🙂 Regards Steve
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09-06-2012
03:09 PM
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Have you set your Processing extent = to that of the polygon? This is done via the Environment. Steve
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09-03-2012
06:16 AM
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Lauren If you are using ArcGIS 10 you can use CellStatistics. Input raster=small raster and in the environment set the processing extent=larger raster. Steve
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08-22-2012
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While doing a search did you find http://resources.arcgis.com/en/help/main/10.1/index.html#//009z00000078000000 ? Have you looked at the 2 references ? Regards Steve
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08-10-2012
08:06 AM
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My kudoed posts
| Title | Kudos | Posted |
|---|---|---|
| 3 | 03-23-2026 07:11 AM | |
| 1 | 02-24-2026 05:28 AM | |
| 1 | 01-21-2026 07:08 AM | |
| 1 | 12-16-2025 05:11 AM | |
| 2 | 12-01-2025 05:07 AM |
Activity Feed
- Kudoed Introducing the ArcGIS Spatial Analyst Ideas Exchange for NairiSevajian. a week ago
- Got a Kudo for Understanding the values making up a Suitability Map. 03-24-2026 06:22 AM
- Got a Kudo for Understanding the values making up a Suitability Map. 03-24-2026 05:49 AM
- Posted Re: Error when re-opening Suitability Model - Restricted Areas on Spatial Analyst Suitability Modeler Questions. 03-24-2026 05:35 AM
- Got a Kudo for Understanding the values making up a Suitability Map. 03-23-2026 07:15 AM
- Posted Understanding the values making up a Suitability Map on Spatial Analyst Suitability Modeler Tips and Tricks. 03-23-2026 07:11 AM
- Got a Kudo for Re: Suitability Modeler "Generate Report" is greyed out. 02-24-2026 06:27 AM
- Posted Re: Suitability Modeler "Generate Report" is greyed out on Spatial Analyst Suitability Modeler Questions. 02-24-2026 05:28 AM
- Got a Kudo for Uncheck the 'Auto Calculate' option to quickly refine your criteria without waiting for the maps to refresh after each adjustment. 01-22-2026 06:16 AM
- Posted Uncheck the 'Auto Calculate' option to quickly refine your criteria without waiting for the maps to refresh after each adjustment on Spatial Analyst Suitability Modeler Tips and Tricks. 01-21-2026 07:08 AM
- Posted Re: Suitability Modeler on ArcGIS Pro Questions. 01-07-2026 10:41 AM
- Got a Kudo for How to use criteria that have already been transformed. 12-16-2025 06:20 AM
- Posted How to use criteria that have already been transformed on Spatial Analyst Suitability Modeler Tips and Tricks. 12-16-2025 05:11 AM
- Got a Kudo for Should you use the Save transformed dataset when model is run option?. 12-02-2025 05:18 PM
- Got a Kudo for Should you use the Save transformed dataset when model is run option?. 12-01-2025 08:07 AM
- Posted Should you use the Save transformed dataset when model is run option? on Spatial Analyst Suitability Modeler Tips and Tricks. 12-01-2025 05:07 AM
- Posted Re: Suitability Modeler-Score on ArcGIS Spatial Analyst Questions. 08-25-2025 05:28 AM
- Got a Kudo for Re: How to intersect a raster and vector. 02-20-2025 12:31 PM
- Got a Kudo for Re: Clip Raster with Polygon Freezes ArcGIS.. 02-11-2025 06:40 AM
- Posted Re: Export Raster — Entering an output path without a file extension shouldn't automatically change filetype to GRID on ArcGIS Pro Ideas. 02-10-2025 03:37 AM
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