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16 * The Original Code is Mozilla SVG Test Code.
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23 * Brian Birtles <birtles@gmail.com>
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40 * Utilities for testing SVG matrices
43 function createMatrix(a, b, c, d, e, f)
45 var svg = document.getElementsByTagName("svg")[0];
46 var m = svg.createSVGMatrix();
56 // Lightweight dummy Matrix class for representing arrays that get passed in
57 function MatrixFromArray(a)
67 function cmpMatrix(a, b, msg)
69 if (a.constructor === Array)
70 a = new MatrixFromArray(a);
71 if (b.constructor === Array)
72 b = new MatrixFromArray(b);
80 msg + " - got " + formatMatrix(a)
81 + ", expected" + formatMatrix(b));
84 function roughCmpMatrix(a, b, msg)
86 if (a.constructor === Array)
87 a = new MatrixFromArray(a);
88 if (b.constructor === Array)
89 b = new MatrixFromArray(b);
91 const tolerance = 1 / 65535;
92 ok(Math.abs(b.a - a.a) < tolerance &&
93 Math.abs(b.b - a.b) < tolerance &&
94 Math.abs(b.c - a.c) < tolerance &&
95 Math.abs(b.d - a.d) < tolerance &&
96 Math.abs(b.e - a.e) < tolerance &&
97 Math.abs(b.f - a.f) < tolerance,
98 msg + " - got " + formatMatrix(a)
99 + ", expected" + formatMatrix(b));
102 function formatMatrix(m)
104 if (m.constructor != Array)
105 return "(" + [m.a, m.b, m.c, m.d, m.e, m.f].join(', ') + ")";
107 return "(" + m.join(', ') + ")";