Hello,
This is a tough problem I am struggling with for a couple of days : how to make my roads junction neat while taking care of their elevation ? The main problem is related to the data I am using (TeleAtlas shape files). I haven't found a way yet to be able to tell witch road element should be drawn first/last in order to have bridges above tunnels and not the opposite. Well I have one but it would need to make a script with quite sophisticated queries and data sorting that I would like to avoid. Then comes the problem of neat junction. I don't want to see a secondary street dripping on a larger road at the junction of those two. When you don't care about the elevation, bridges and tunnels this is easily fixed by drawing the border first then narrow secondary streets and finally main large roads. But if I choose a different order to draw roads elements I will have those dripping problems again. I see on OpenStreetMap, as well as on Google Maps that they can draw everything right so I am wondering what's the trick. Can anyone help me or lead me to someone who could ? Thank you. Nicolas.
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