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Correctly size Layer.Grid and Layer.KaMap in rows/cols for all values of Grid.buffer.

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Closes bug #928. Thanks a mil to bartvde for identifying the solution.


git-svn-id: http://svn.openlayers.org/trunk/openlayers@4317 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
Schuyler Erle
2007-09-15 14:48:22 +00:00
parent 121a5553f4
commit c941651e72
4 changed files with 103 additions and 22 deletions
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11
lib/OpenLayers/Layer/Grid.js
View File

@@ -306,10 +306,13 @@ OpenLayers.Layer.Grid = OpenLayers.Class(OpenLayers.Layer.HTTPRequest, {
initGriddedTiles:function(bounds) {
// work out mininum number of rows and columns; this is the number of
// tiles required to cover the viewport plus one for panning
// tiles required to cover the viewport plus at least one for panning
var viewSize = this.map.getSize();
var minRows = Math.ceil(viewSize.h/this.tileSize.h) + 1;
var minCols = Math.ceil(viewSize.w/this.tileSize.w) + 1;
var minRows = Math.ceil(viewSize.h/this.tileSize.h) +
Math.max(1, 2 * this.buffer);
var minCols = Math.ceil(viewSize.w/this.tileSize.w) +
Math.max(1, 2 * this.buffer);
var extent = this.map.getMaxExtent();
var resolution = this.map.getResolution();
@@ -528,7 +531,7 @@ OpenLayers.Layer.Grid = OpenLayers.Class(OpenLayers.Layer.HTTPRequest, {
* bounds - {<OpenLayers.Bounds>}
*/
moveGriddedTiles: function(bounds) {
var buffer = (this.buffer) ? this.buffer*1.5 : 1;
var buffer = this.buffer || 1;
while (true) {
var tlLayer = this.grid[0][0].position;
var tlViewPort =