WEBSITE AND WEBSITE GRAPHICS CREATED WITH XARA DESIGNER 6 PRO 2010 Mike Sims Above is a cropped screen shot of the working Xara Xtreme file I used to generate the arc segments from the red ring. The map is an equatorial cylindrical projection, however, not being a geometer, I am not positive this is technically the correct type to use given how I mapped it to the rings, but the globe I ended up with looks pretty reasonable, so it was good enough. 2010 Mike Sims To close the discs to make a sphere, I increased the extrusions globally to 6. While the animation is paused you can drag the image around and view it from any angle. By increasing the number of discs you can reduce, even eliminate, the visible banding. With more discs, you need less extrusion. You can achieve exactly the same effect with rings, rather than discs because all you are actually seeing in this frame are the edges, the sides of the discs. The faces are hidden inside the sphere’s surface. The sphere will look the same. At this point it occurred to me that I could chop parts of the rings out, leaving some arc segments, and if I chopped out the right bits from the right rings, arc segments on adjacent rings could be built up to represent a continent curving both East/West and North/South. I could make a 3D Hollow Earth in Xara 3D. From Maps to Arcs So, since the Xara 3D side looked to be straightforward, I now had to work out how to transform a map of the world into a series of arc segments that I could import into Xara 3D. I expected to use Xara Xtreme for this, and already was comfortable with slicing vector shapes with other shapes and lines, but I didn’t know how get consistently accurate arcs that would allow me to build up the continents. I thought about this on and off for a few months before I worked out a methodology. H    1    2    3    4    5    6    Download Zipped Tutorial