Extract Lat/lon from Shapefiles
23 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
I have a grid projected in a Cartesian coordinate where each point represents a portion of a terrain. And I'd like to know the distance between each of these points to the closest road.
These roads are in a shapefile, and the function I'm using ipdm needs a XY input (as my grid point in Cartesian coordinates). So, my thinking is somehow extract the lat/lon of the roads, convert to a projected coordinate, ad then use the ipdm .
Any thoughts?
0 comentarios
Respuestas (1)
Chad Greene
el 18 de Jun. de 2015
You should be able to use shaperead with the 'UseGeoCoords',false option to get roads in cartesian coordinates. Just make sure the projection associated with the shapefile is the same projection you're using for your data.
3 comentarios
Chad Greene
el 24 de Jun. de 2015
I assume the road coordinates are in a structure array, so I wouldn't expect scatter(roads.X,roads.Y) to plot all the roads. What happens if you do
[X,Y] = polyjoin(roads.X,roads.Y);
plot(X,Y)
Igor Noberto
el 29 de Jun. de 2015
Editada: Igor Noberto
el 29 de Jun. de 2015
Ver también
Productos
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!