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Feb
24
comment How to extract data from a polyline layer in a specified area(Arcgis)
Tried it again on a different computer, for some unknown reason it worked, a mystery but at least it's working!
Feb
24
comment How to extract data from a polyline layer in a specified area(Arcgis)
I used the clip in the geoprocessing tools. I cannot figure why it wouldn't clip all lines in the radius. Is this a bug?
Feb
23
comment How to extract data from a polyline layer in a specified area(Arcgis)
I have added an example of the clip. Image showing clipped lines in green, original layer source in blue and 1km radius the layer was clipped by in black. I am unsure why the clip excludes some of the lines (shown in blue) and how to remedy this. A similar thing was happening using the select by location tool.
Feb
23
comment How to extract data from a polyline layer in a specified area(Arcgis)
I have just clipped a layer but it has also excluded any lines that are bisecting the boundary, is there anyway to change this?
Feb
23
comment How to extract data from a polyline layer in a specified area(Arcgis)
I have tried the majority of the 'relationships' and they all seem to leave lines unselected at the edge of the sample circle. Any lines crossing the boundary are either not selected or their entire length is selected rather then bisected. Perhaps I'm better off clipping all the data? Although I think I have done this before but the attribute table gave the lengths of the whole line rather then just that which is held within the clip.
Jan
13
comment Converting files for use in fragstats
Apologies, I have been trying to convert the data within ArcGIS
Mar
19
comment How to measure the area of polygons within a fishnet
Apologies! Thank you for your help.
Mar
19
comment How to measure the area of polygons within a fishnet
Using the intersect function produced the layer i have posted in my question, I can't use this to calculate areas within the fishnet squares...Any ideas? Thanks.
Mar
19
comment How to measure the area of polygons within a fishnet
Perhaps it is better to wait until i get an Arcinfo license and split it
Mar
19
comment How to measure the area of polygons within a fishnet
Thanks, i have just tried that but it gives the sum area of the whole layer rather than by fishnet square.