135798642

Raster processing problem

Discussion created by 135798642 on Oct 1, 2013
Latest reply on Oct 3, 2013 by lpinner
I am currently doing an assignment using only raster data. Part of that assignment entails finding a potential site for a wildlife park that is accessible by road. I previously did this assignment using only vector data (and did it easily enough using the select by location). I just cannot for the life of me figure out how to do something similar using raster data.

So far I have used the raster calculator OR function in an effort to find roads that intersect park sites - this gave me tiny dots as a result of fragments of roading that intersected park sites (as expected). I did the same thing with buffered and reclassed roads within 100 m of park sites - similar result.

[ATTACH=CONFIG]27946[/ATTACH]

The trouble I am having as that I want to treat the park raster file as separate but complete entities (refer to the image) in that entire park block becomes highlighted if it is within close proximity to roads (and not just small chunks of it).

Sorry if this is quite basic - I think it has gotten to the point where I have been overthinking it!

Attachments

Outcomes