0

I have two shapefiles. One is the DMA and another of states.

What I'm trying to do is "expand" a DMA boundary to match the boundary of the states, since the DMA map doesn't extend all the way. To illustrate:

This is the map of the Mid Atlantic and Midwest region states:

states

And this is the DMA for the same region: dma

And this is the overlay between the two shapefiles: overlay

Is there any way I can create a query that will artifically increase the size of the DMA to match the state boundaries? The reason why I need this is because I plan on going a large spatial join with coordinates and I know alot of people will not be counted for if we use the current DMA shapefile.

1 Answer 1

1

I saw on you page that you converted a shapefile to topojson. Try getting the original DMA shapefile and projecting it so that it matches the state shapefile. I looks like a projection error. Also, the DMA doesn't match up with state boundaries, so a join might give you fits. You could do something like a spatial join or clip.

0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.