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Offsets are now relative to zoom level

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This commit is contained in:
Ansis Brammanis
2013-02-28 15:57:37 -05:00
parent 90e1005c4c
commit 478696a189
2 changed files with 11 additions and 6 deletions
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15
js/id/renderer/background.js
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@@ -78,6 +78,11 @@ iD.Background = function() {
return cache[r[3]] !== false;
});
var pixeloffset = [
Math.round(offset[0] * Math.pow(2, z)),
Math.round(offset[1] * Math.pow(2, z))
];
function load(d) {
cache[d[3]] = true;
d3.select(this)
@@ -97,8 +102,8 @@ iD.Background = function() {
var _ts = tileSize[0] * Math.pow(2, z - d[2]);
var scale = tileSizeAtZoom(d, z);
return 'translate(' +
(Math.round((d[0] * _ts) - tile_origin[0]) + offset[0]) + 'px,' +
(Math.round((d[1] * _ts) - tile_origin[1]) + offset[1]) + 'px)' +
(Math.round((d[0] * _ts) - tile_origin[0]) + pixeloffset[0]) + 'px,' +
(Math.round((d[1] * _ts) - tile_origin[1]) + pixeloffset[1]) + 'px)' +
'scale(' + scale + ',' + scale + ')';
}
@@ -134,9 +139,9 @@ iD.Background = function() {
return background;
};
background.nudge = function(_) {
offset[0] += _[0];
offset[1] += _[1];
background.nudge = function(_, zoomlevel) {
offset[0] += _[0] / Math.pow(2, zoomlevel);
offset[1] += _[1] / Math.pow(2, zoomlevel);
return background;
};

2
js/id/ui/layerswitcher.js
View File

@@ -174,7 +174,7 @@ iD.ui.LayerSwitcher = function(context) {
['bottom', [0, 1]]];
function nudge(d) {
context.background().nudge(d[1]);
context.background().nudge(d[1], context.map().zoom());
context.redraw();
}