Arrows as symbols graduated only by width
I'd like to use arrows to demonstrate regional relationships, and the arrows need to vary in width to represent the size of the attribute going somewhere. I can't seem to figure out how to use arrows in symbology that i can adjust. help!
Mapping Center Answer:
There's not an especially easy way to do this (make a symbol graduate in size just based on one dimension: width). If it is okay to have a classed display (graduated symbols), then you could make custom arrows. There are two ways to do that. You could create them in a graphics software package and save them as .EMF files that you can create Picture Marker Symbols from in ArcMap, or you can assign them all the same marker, and convert the symbols for your layer to representations and then edit the markers in the Representation Marker Editor.
If you need proportional symbols, then the same to methods will work, but will also be a lot more work. I would suggest using graduated symbols and just use more classes (than normal, which would be 3-7, try 12-15).
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