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+ id 1UK8Le-0005kz-HT; Mon, 25 Mar 2013 10:26:06 -0400\r
+Date: Mon, 25 Mar 2013 10:26:06 -0400\r
+From: Austin Clements <amdragon@MIT.EDU>\r
+To: Damien Cassou <damien.cassou@gmail.com>\r
+Subject: Re: [PATCH 2/2] emacs: possibility to customize the rendering of tags\r
+Message-ID: <20130325142606.GD32584@mit.edu>\r
+References: <1364038194-19856-1-git-send-email-damien.cassou@gmail.com>\r
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+\r
+\r
+--17pEHd4RhPHOinZp\r
+Content-Type: text/plain; charset=us-ascii\r
+Content-Disposition: inline\r
+\r
+Quoth myself on Mar 25 at 10:22 am:\r
+> I pre-applied the transformations and removed the style attributes\r
+> that had default or unimportant values. (The script to do the path\r
+> math is attached.)\r
+\r
+Now attached.\r
+\r
+--17pEHd4RhPHOinZp\r
+Content-Type: text/x-python; charset=us-ascii\r
+Content-Disposition: attachment; filename="xform.py"\r
+\r
+import re, numpy\r
+\r
+def parse_xform(xform):\r
+ [(name, args)] = re.findall(r"([a-z]+)\(([-0-9.,]+)\)", xform)\r
+ args = map(float, args.split(","))\r
+ if name == "translate":\r
+ x, y = args\r
+ return numpy.matrix([[1,0,x], [0,1,y], [0,0,1]])\r
+ if name == "matrix":\r
+ a, b, c, d, e, f = args\r
+ return numpy.matrix([[a,c,e], [b,d,f], [0,0,1]])\r
+ raise ValueError("Couldn't parse %r" % xform)\r
+\r
+def parse_path(spath):\r
+ # Parse an 'm' path\r
+ pos = (0,0)\r
+ res = []\r
+ for op in spath.split():\r
+ dx, dy = map(float, op.split(","))\r
+ pos = (pos[0] + dx, pos[1] + dy)\r
+ res.append(numpy.matrix([pos[0], pos[1], 1]).T)\r
+ return res\r
+\r
+def str_path(path):\r
+ # Print an 'M' path (different from parse_path!)\r
+ return " ".join("%.5f,%.5f" % (c[0][0], c[1][0]) for c in path)\r
+\r
+# Star icons\r
+xform = (parse_xform("translate(-242.81601,-315.59635)") *\r
+ parse_xform("matrix(0.2484147,-0.02623394,0.02623394,0.2484147,174.63605,255.37691)"))\r
+path = parse_path("290.25762,334.31206 -17.64143,-11.77975 -19.70508,7.85447 5.75171,-20.41814 -13.55925,-16.31348 21.19618,-0.83936 11.325,-17.93675 7.34825,19.89939 20.55849,5.22795 -16.65471,13.13786")\r
+xpath = [xform * coord for coord in path]\r
+# Path\r
+print str_path(xpath)\r
+# Stroke\r
+print numpy.linalg.norm(xform * numpy.matrix([1, 0, 1]).T -\r
+ xform * numpy.matrix([0, 0, 1]).T)\r
+print\r
+\r
+# Tag icon\r
+xform = parse_xform("translate(0,-1036.3622)")\r
+path = parse_path("0.44642857,1040.9336 12.50000043,0 2.700893,3.6161 -2.700893,3.616 -12.50000043,0")\r
+xpath = [xform * coord for coord in path]\r
+# Path\r
+print str_path(xpath)\r
+\r
+--17pEHd4RhPHOinZp--\r
projects / notmuch-archives.git / commitdiff