I have vector data that I need to rasterize to perform a weighted suitability analysis but am unclear how to do that. I have a project due very soon and tried using the point to raster tool, but it took forever and didn't work. Please help!
With weighted analysis, it if implicit that you most likely have more than one input
Weighted Overlay.... and
how it works....
Conversion directly from points doesn't seem to be a first step. Perhaps you might want to outline the types of data that you have, the form that it is in (all points?) and the type of analysis you are carrying out.
thank you so much for the reply Dan! I am trying to do a site suitability analysis for affordable housing development in Westlake, California. Most of my data is point data for important locations such as hospitals, parks, schools, and grocery stores. I was hoping to do a weighted analysis based on distance from these points... is that possible?
Melody, anything is possible, but as soon as you mention 'distance' then things can get complicated.
Do you mean something like a general Euclidean Distance which requires the spatial analyst extension. If you mean road distance, then you would require the Network Analyst extension. In either case, you would have to have some form/concept of a model as to how these would relate to an affordable housing development. Using 'raw' distances would be of little use, since I suspect distance relationship would be not vary proportionally with distance in any predictable manner.
Things like 'schools' and their location can be converted to polygons (then rasters) by using their 'feeder area'. You could even go to a Euclidean Allocation approach as a first approximation with some variables based on the assumption that location is to maximize coverage and reduce duplication.
So before you start worrying about data conversion and the like, a clear statement on how the input variables relate directly to the project at hand should be formulated.
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