aaac7fed
 liuqimichale
add
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import PathProxy from '../core/PathProxy';
import {applyTransform as v2ApplyTransform} from '../core/vector';
var CMD = PathProxy.CMD;
var points = [[], [], []];
var mathSqrt = Math.sqrt;
var mathAtan2 = Math.atan2;
export default function (path, m) {
var data = path.data;
var cmd;
var nPoint;
var i;
var j;
var k;
var p;
var M = CMD.M;
var C = CMD.C;
var L = CMD.L;
var R = CMD.R;
var A = CMD.A;
var Q = CMD.Q;
for (i = 0, j = 0; i < data.length;) {
cmd = data[i++];
j = i;
nPoint = 0;
switch (cmd) {
case M:
nPoint = 1;
break;
case L:
nPoint = 1;
break;
case C:
nPoint = 3;
break;
case Q:
nPoint = 2;
break;
case A:
var x = m[4];
var y = m[5];
var sx = mathSqrt(m[0] * m[0] + m[1] * m[1]);
var sy = mathSqrt(m[2] * m[2] + m[3] * m[3]);
var angle = mathAtan2(-m[1] / sy, m[0] / sx);
// cx
data[i] *= sx;
data[i++] += x;
// cy
data[i] *= sy;
data[i++] += y;
// Scale rx and ry
// FIXME Assume psi is 0 here
data[i++] *= sx;
data[i++] *= sy;
// Start angle
data[i++] += angle;
// end angle
data[i++] += angle;
// FIXME psi
i += 2;
j = i;
break;
case R:
// x0, y0
p[0] = data[i++];
p[1] = data[i++];
v2ApplyTransform(p, p, m);
data[j++] = p[0];
data[j++] = p[1];
// x1, y1
p[0] += data[i++];
p[1] += data[i++];
v2ApplyTransform(p, p, m);
data[j++] = p[0];
data[j++] = p[1];
}
for (k = 0; k < nPoint; k++) {
var p = points[k];
p[0] = data[i++];
p[1] = data[i++];
v2ApplyTransform(p, p, m);
// Write back
data[j++] = p[0];
data[j++] = p[1];
}
}
}
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