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Hi all,<br>
<br>
A couple of 3d histogram charts. The first one uses 3x3 matrices and the second uses 4x4 matrices so that perspective is included. A fair amount of linear algebra in there to transform points.<br>
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It works pretty good. Fonts and shapes get rotated and stretched out with perspective. Output to svg and pdf looks good and can be opened up and edited in Inkscape.<br>
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I am not a linear algebra pro so I got a few things upside down and backwards while working on this. For the most part I think that I have it worked out. Wouldn't surprise me if there are a few things incorrect though. <br>
<br>
Some interesting possibilities for getting some nice print layouts with cairo. The animation works good also.<br>
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3x3<br>
https://gitlab.com/cecashon/OrderedSetVelociRaptor/blob/master/Misc/cairo_drawings/histogram_chart1.c<br>
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4x4<br>
https://gitlab.com/cecashon/OrderedSetVelociRaptor/blob/master/Misc/cairo_drawings/histogram_chart2.c<br>
<br>
Eric</font></font>