http://www.cyclestreets.net/getmapping/guide/CycleMappingGuide.pdf
CityCyclingEdinburgh Forum » Resources
"Cycle mapping for cycle routing with OpenStreetMap"
(4 posts)-
Posted 12 years ago #
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I added a few paths about a week ago, but when I use the Cycle Map view, they still don't show up on that, despite the fact that they appear to be identically set up to other paths that *do* show up on the Cycle Map view. Do you know if the Cycle Map view only gets updated rarely?
Posted 12 years ago # -
The lack of response probably means no-one knows. So I have kept an eye on the Cycle Map view to see what would happen, and I think I may have figured it out. Therefore, I thought I'd let you know.
What seems to be happening is that the graphics are slowly (and I mean _very_ slowly) being re-drawn over a number of weeks. If you were to add a cycle path to OSM and then view the Cycle Map view after a week, the cycle path might appear on some zoom levels, but not on others. It doesn't seem to matter how much you refresh and/or clear your browser cache, it doesn't appear.
This is in stark contrast to the standard OSM view. On there, if you add a cycle path, then within 5 minutes that path will appear in all zoom levels. You need to force a refresh to get it to appear, but it does appear nonetheless, and at all zoom levels.
So, what I've taken from this is that the standard OSM map is generated on-the-fly direct from their database, whereas the Cycle Map view isn't; it's generated offline where the images are being created based on the OSM database and those offline images are then cached, rather than re-created everytime someone wants to look at the view.
Note that this could all be entirely wrong. </disclaimer>
Posted 12 years ago # -
"The lack of response probably means no-one knows"
I 'put out a call' didn't get a definitive answer.
Posted 12 years ago #
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