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Fix bug in PathItem#bounds (wrongly used variable name twice), now works properly for open paths.

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This commit is contained in:
Jürg Lehni 2011-02-13 15:49:36 +00:00
parent 5234c5624c
commit d59d514a55
1 changed files with 13 additions and 13 deletions
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26
src/path/PathItem.js
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@ -87,28 +87,28 @@ PathItem = Item.extend(new function() {
var p3 = segment.point;
var p2 = p3.add(segment.handleIn);
for (var j = 0; j < 2; j++) {
var c = coords[j];
var p = coords[j];
function bounds(value) {
if (value < min[c]) {
min[c] = value;
} else if (value > max[c]) {
max[c] = value;
if (value < min[p]) {
min[p] = value;
} else if (value > max[p]) {
max[p] = value;
}
}
bounds(p3[c]);
bounds(p3[p]);
function f(t) {
var omt = 1 - t;
return omt * omt * omt * p0[c]
+ 3 * omt * omt * t * p1[c]
+ 3 * omt * t * t * p2[c]
+ t * t * t * p3[c];
return omt * omt * omt * p0[p]
+ 3 * omt * omt * t * p1[p]
+ 3 * omt * t * t * p2[p]
+ t * t * t * p3[p];
}
var b = 6 * p0[c] - 12 * p1[c] + 6 * p2[c];
var a = -3 * p0[c] + 9 * p1[c] - 9 * p2[c] + 3 * p3[c];
var c = 3 * p1[c] - 3 * p0[c];
var b = 6 * p0[p] - 12 * p1[p] + 6 * p2[p];
var a = -3 * p0[p] + 9 * p1[p] - 9 * p2[p] + 3 * p3[p];
var c = 3 * p1[p] - 3 * p0[p];
if (a == 0) {
if (b == 0)