Marcin

887 reputation

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visits	member for	1 year, 3 months
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	887 reputation	bio	website		visits	member for	1 year, 3 months
212 badges		location	Warsaw, Poland		seen	yesterday

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Jun 21	asked	How to update geometry in ArcObjects?
Jun 20	awarded	Nice Answer
Jun 20	answered	How to break a single polygon into multiple polys?
Jun 14	answered	How do I include a variable in the where clause of arcpy.Select_analysis?
Apr 18	comment	Can a new point automatically be populated with data from the containing polygon @Hairy: I understood that there're 2 polygon layers, each with more than 2 polygons - for 2 polygon features ther's no sense to use any tool beyond Idetify:) But I agree that for simpler geometries your code is more clear.
Apr 18	answered	Programmatically convert multipart polygon to singlepart in ArcGis 10
Apr 18	comment	Can a new point automatically be populated with data from the containing polygon @Hairy: I think your criticism is unmerited. I've made some tests: 17 random points, 170k polygons in FGDB. Your code ~13min, my ~0.5min. I suppose that avoid looping through polygon layer several times makes the difference.
Apr 18	comment	Can a new point automatically be populated with data from the containing polygon The solution is basen on exercise from PennState: e-education.psu.edu/geog485/node/159. Moreover, On the first place I proposed two ArcGIS tools which do not require any scripting!
Apr 17	answered	Can a new point automatically be populated with data from the containing polygon
Apr 17	comment	Can a new point automatically be populated with data from the containing polygon @Hairy: Your script updates a polygon layer not points. The `geom` variable wont be created as you don't have access to X,Y directly. Use `geom = row.Shape.getPart()` instead. Moreover, the script may not be effective while many polygon as it loops through all polygons for each point.
Apr 15	comment	How to Clip a Vector File based on certain Raster Values? My first thought was also CON tool. But in my created Slope rasters this tool didn't recognise VALUE field. That's why I recommended Reclassify tool. BTW the real problem here is not HOW, but operations on huge vector layers.
Apr 13	awarded	Critic
Apr 12	awarded	Commentator
Apr 12	comment	How to Clip a Vector File based on certain Raster Values? Have you seen gis.stackexchange.com/questions/16110/… for some hints on handling big rasters and vectors?
Apr 12	comment	How to Clip a Vector File based on certain Raster Values? What do you mean '"Clip" crashes'? Does it throw any errors or ArcMap is in No response state?
Apr 12	comment	How to Clip a Vector File based on certain Raster Values? When converting raster to polygon, select option 'Simplify polygons' - this reduce the number of polygon vertices. Moreover, try to do your analyse in File Geodatabase.
Apr 12	answered	How to Clip a Vector File based on certain Raster Values?
Apr 12	answered	Small issue with field calculator
Apr 10	comment	Looking for system specifications for a modern GIS workstation In case of ESRI software, it's better to have higher cpu frequency than additional cores.
Mar 15	comment	slope and mosaic datasets You don't need to update overviews for slope calculations. When you still get wrong values try to create 'traditional' mosaic from your rasters: Data Management Tools -> Raster -> Raster Dataset -> Mosaic