topic Re: Spatial Selection; Lines Near Edges of Polygons in Spatial Data Science Questions

Spatial Selection; Lines Near Edges of Polygons

JoeBorgione — Mon, 20 Oct 2014 20:05:10 GMT

I need to select from a feature class of streets, just those streets that are within a given distance to the edge (shared edge) of city boundary polygons. Does anyone have an idea how I may go about this? (ArcGIS desktop v 10.0 sp5, workstation license)

Re: Spatial Selection; Lines Near Edges of Polygons

JoeBorgione — Mon, 20 Oct 2014 20:14:53 GMT

Attached is a graphic of what I'm after....

Re: Spatial Selection; Lines Near Edges of Polygons

DanPatterson_Retired — Mon, 20 Oct 2014 20:21:51 GMT

apologies of I am missing something, but I assume you have ruled out Select by location within a distance of as being the solution?

Re: Spatial Selection; Lines Near Edges of Polygons

DarrenWiens2 — Mon, 20 Oct 2014 20:33:26 GMT

If your boundary polygons are topologically correct (i.e. if the boundaries fall exactly on each other), you can run the Intersect tool with boundaries as the only input and Output Type = Line to get shared edges, then select by location "are within a distance of the source layer feature" to the shared edges.

Re: Spatial Selection; Lines Near Edges of Polygons

JoeBorgione — Mon, 20 Oct 2014 20:35:39 GMT

Don- tried that but it selects all the streets within the polygon since technically if they are within the polygon, are are within 150 feet of it....

Re: Spatial Selection; Lines Near Edges of Polygons

JoeBorgione — Mon, 20 Oct 2014 20:45:09 GMT

Nice one Darren! I get a bunch of extras but I can get rid of them easily....

Re: Spatial Selection; Lines Near Edges of Polygons

DanPatterson_Retired — Mon, 20 Oct 2014 21:15:20 GMT

Joe...forgot about the ones on boundaries,. Check out the Clementini options which I forgot to point out as viable options...from the same help files references

CONTAINS_CLEMENTINI —This spatial relationship yields the same results as COMPLETELY_CONTAINS with one exception. If the selecting feature is entirely on the boundary of the input feature (no part is properly inside or outside), the feature will not be selected. CLEMENTINI defines the boundary polygon as the line separating inside and outside, the boundary of a line is defined as its end points, and the boundary of a point is always empty.

COMPLETELY_WITHIN —The features in the input layer will be selected if they are completely within or contained by a selecting feature. The selecting features must be polygons.

WITHIN_CLEMENTINI —The result will be identical to WITHIN except if the entirety of the feature in the input layer is on the boundary of the feature in the selecting layer, the feature will not be selected. CLEMENTINI defines the boundary polygon as the line separating inside and outside, the boundary of a line is defined as its end points, and the boundary of a point is always empty.

but alas, there is no within a distance, so you have to do a clementini selection, switch the selection, then perform the within a distance from the selected set (if memory serves...don't have files to test at present)