Hi folks, I am trying to perform a walkability analysis for Sacramento, CA. I converted the service area polygon shapefiles for each locations in Sacramento into raster layers. However, I need to have my raster layers within a boundary like the figure on the left, so I can define raw raster values of 0-1. Right now, my polygon shapefiles & raster layers are stand alone so they only have a single value of 1.
Does anyone know how to do this? Am I supposed to create the boundary with the service area polygons before I convert them to raster?