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How to convert a flat scan of a 3D object, into a 3D picture in cylindrical coordinates?
Please; double-click the following internet links: http://www.tilmarlily.netfirms.com/download/Abe3D.txt http://www.tilmarlily.netfirms.com/download/Abe3D.xls to download: (1.) the text file: "Abe3D.txt" and, (2.) an Excel spreadsheet: "Abe3D.xls". The file "Abe3D.txt" is data obtained by scanning the surface of a bust of Abraham Lincoln. This file contains a 95 X 73 array of values. Each line of longitude was smoothened using a cubic spline, and the whole array can be used to draw a (rough) 3D picture of the bust. You can view this picture by opening the spreadsheet Abe3D.xls, and opening the Excel chart in it. Notice that the image of "Abe" (for short) is flat; i.e. similar to a Mercator map of the World. My question is: How can I build a 3D picture of Abe, using cylindrical coordinates, so that the new picture looks like the real bust of Abe, and a person can rotate the picture of the bust in 3D? Thank you for your help!