ashatora/openlayers
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Use a switch to select tier size calculation

Browse Source
This commit is contained in:
Tom Payne
2014-02-20 19:30:47 +01:00
parent 00eff70ae6
commit a773ab256c
1 changed files with 26 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
src/ol/source/zoomifysource.js
View File

@@ -1,6 +1,7 @@
goog.provide('ol.source.Zoomify');
goog.require('goog.array');
goog.require('goog.asserts');
goog.require('goog.dom');
goog.require('goog.dom.TagName');
goog.require('ol.ImageTile');
@@ -42,26 +43,31 @@ ol.source.Zoomify = function(opt_options) {
var tierSizeInTiles = [];
var tileSize = ol.DEFAULT_TILE_SIZE;
if (tierSizeCalculation === 'truncated') {
var width = imageWidth;
var height = imageHeight;
while (width > tileSize || height > tileSize) {
tierSizeInTiles.push([
Math.ceil(width / tileSize),
Math.ceil(height / tileSize)
]);
width >>= 1;
height >>= 1;
}
} else {
while (imageWidth > tileSize || imageHeight > tileSize) {
tierSizeInTiles.push([
Math.ceil(imageWidth / tileSize),
Math.ceil(imageHeight / tileSize)
]);
tileSize += tileSize;
}
switch (tierSizeCalculation) {
case ol.source.ZoomifyTierSizeCalculation.DEFAULT:
while (imageWidth > tileSize || imageHeight > tileSize) {
tierSizeInTiles.push([
Math.ceil(imageWidth / tileSize),
Math.ceil(imageHeight / tileSize)
]);
tileSize += tileSize;
}
break;
case ol.source.ZoomifyTierSizeCalculation.TRUNCATED:
var width = imageWidth;
var height = imageHeight;
while (width > tileSize || height > tileSize) {
tierSizeInTiles.push([
Math.ceil(width / tileSize),
Math.ceil(height / tileSize)
]);
width >>= 1;
height >>= 1;
}
break;
default:
goog.asserts.fail();
break;
}
tierSizeInTiles.push([1, 1]);