Elevation chevrons for bike map
Posted 03 December 2009 - 07:33 PM
I decided that I would try and design a graphically attractive and meaningful chevron symbol to be used and was going to use the convention such that a single chevron indicates a moderately steep hill, a double indicates steeper and a triple chevron for the steepest. Now I am curious about how to create them. I thought about creating contours at a certain interval and intersecting bike routes to create points and swapping symbols in AI, then I thought about rasterizing the routes and calculating slope, but that would induce error for cross-slopes.
Now I am not sure which solution to dive into, but was wondering if anyone else had arrived at a solution in GIS. I know there is going to be some manual work work involved when I start working in AI, but I want to automate as much as I can. The people I can contacted have done this iteratively, but I am sure there is a better method.
I will be using ArcGIS and Illustrator and thought someone might have already figured this out using the same tools.
Oregon Metro - Portland, OR
Posted 04 December 2009 - 10:04 AM
Posted 04 December 2009 - 05:41 PM
He wrote that:
May 30, 2009 at 1:03 am
The “how” of the process is probably another post in and of itself, but I’m still not satisfied with the technique (it’s very painstaking and slow)
Posted 05 December 2009 - 04:41 AM
For narrow strips it might be better if the rendered DEM was contoured.
Just a thought, needless to say I haven't tried this. It might look horrible, but it could be done very quickly.
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