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Fix one way marker rendering (fixes #1534)

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This commit is contained in:
John Firebaugh
2013-05-29 12:02:47 -07:00
parent e959002e03
commit b55e7bb111
1 changed files with 18 additions and 21 deletions
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js/id/svg.js
+18 -21
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@@ -61,32 +61,29 @@ iD.svg = {
b = [x, y];
if (a) {
var segment = 'M' + a[0] + ',' + a[1];
var span = iD.geo.dist(a, b) - offset;
var span = iD.geo.dist(a, b),
angle = Math.atan2(b[1] - a[1], b[0] - a[0]),
dx = dt * Math.cos(angle),
dy = dt * Math.sin(angle),
p;
if (span >= 0) {
var angle = Math.atan2(b[1] - a[1], b[0] - a[0]),
dx = dt * Math.cos(angle),
dy = dt * Math.sin(angle),
p = [a[0] + offset * Math.cos(angle),
a[1] + offset * Math.sin(angle)];
if (offset < span) {
p = [a[0] + offset * Math.cos(angle),
a[1] + offset * Math.sin(angle)];
var segment = 'M' + a[0] + ',' + a[1] +
'L' + p[0] + ',' + p[1];
segment += 'L' + p[0] + ',' + p[1];
for (span -= dt; span >= 0; span -= dt) {
p[0] += dx;
p[1] += dy;
segment += 'L' + p[0] + ',' + p[1];
}
segment += 'L' + b[0] + ',' + b[1];
segments.push({id: entity.id, index: i, d: segment});
}
while ((offset + dt) < span) {
offset += dt;
p[0] += dx;
p[1] += dy;
segment += 'L' + p[0] + ',' + p[1];
}
offset = dt - (span - offset);
segment += 'L' + b[0] + ',' + b[1];
segments.push({id: entity.id, index: i, d: segment});
offset = -span;
i++;
}