The study and practice of making maps.

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3
votes
1answer
212 views

Is there a standard for displaying US vs. State highways on map?

My question is whether anyone is aware of a standard for how State roads, US roads and interstates should be displayed on a map? Not the label, but standards for the color and width of the symbology ...
1
vote
1answer
202 views

How do I resolve line outlines jutting into other lines in Mapnik/Cascadenik

We are designing a basemap, and I am trying to resolve a problem with outlines that comes up in roads. The idea is to have lighter colors roads, but they don't get pushed out far enough with our light ...
16
votes
5answers
2k views

Rendering overlapping lines

I am making a map containing information about public transportation: busses, trams, etc. The map will have a layer containing for example the tram lines. Each line has its own colour, and is ...
7
votes
2answers
202 views

What are “M” point locations on the NOAA forcecast cone map?

I don't think I've ever noticed M before. H and S are Hurricane and Tropical Storm.