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Creating 3D plot
2 messages · Michal Zimmermann, Sarah Goslee
Hi,
On Wed, Nov 9, 2011 at 11:56 AM, Michal Zimmermann <zimmicz at gmail.com> wrote:
Hi to all, i have a data set of international airports with latitude, longitude and altitude. I was thinking of creating a 3D plot out of them, but haven't succeeded yet. With plot3d(x=seq(min(traffic$lon),max(traffic$lon)),y=seq(min(traffic$lat),max(traffic$lat)),z=traffic$alt) all i get is http://imageshack.us/photo/my-images/225/70758244.png/. What i wanna get is a 3Dlike map of airports in the world. Am i using good function to achieve that? Why are the points "lined" up and don't copy their 2D shape (http://imageshack.us/photo/my-images/36/91660845.png/)?.
Your points are "lined up" because you're plotting seq(min(traffic$lon),max(traffic$lon)) instead of your actual x coordinates, and ditto for y. I would think that you want plot3d(x=traffic$lon, y=traffic$lat, z=traffic$alt) but since you don't provide data (or even which package provided the plot3d() function you're using, since there's more than one), it's hard to say for certain. Sarah
Thanks for replies or hints, i'm new to R and as a geography student i'm especially interested in handling and visualizing geodata.
Sarah Goslee http://www.functionaldiversity.org