hi, ive been doing a bit of work over the last week making an earth iphone app.
its basically a sphere with a earth texture wrapped around it… i found it very tricky finding decent resources on this topic on the web so thought id post to save time for anyone planning to do something like this.
the example contains a Trackball class for intuitive rotatation of the earth, a CurveHop class which draws a curved ribbon from location to location as it hops along on the surface of the earth and correct latitude and longitude mapping onto the sphere.
I’ve taken the liberty of compiling a non-iphone version of this (for windows/codeblocks). I just disabled the multitouch calls, and set the globe to be moved by the mouse.
the one thing I had to change was adding
ofDisableArbTex();
to the beginning of setup(). Maybe this doesn’t matter on an Iphone, but its needed on a pc.
