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Add defines for certain reprojection constants

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This commit is contained in:
Petr Sloup
2015-07-13 17:24:54 +02:00
parent f481070f82
commit be6bf00d74
4 changed files with 54 additions and 18 deletions
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14
src/ol/reproj/tile.js
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@@ -99,7 +99,7 @@ ol.reproj.Tile = function(sourceProj, sourceTileGrid,
var targetResolution = targetTileGrid.getResolution(z);
var errorThresholdInPixels = 0.5;
var errorThresholdInPixels = ol.DEFAULT_RASTER_REPROJ_ERROR_THRESHOLD;
// in source units
var errorThreshold = targetResolution * errorThresholdInPixels *
@@ -111,7 +111,7 @@ ol.reproj.Tile = function(sourceProj, sourceTileGrid,
*/
this.triangulation_ = new ol.reproj.Triangulation(
sourceProj, targetProj, limitedTargetExtent, maxSourceExtent,
5, errorThreshold);
errorThreshold);
if (this.triangulation_.getTriangles().length === 0) {
// no valid triangles -> EMPTY
@@ -166,11 +166,11 @@ ol.reproj.Tile = function(sourceProj, sourceTileGrid,
xRange = goog.array.range(srcRange.minX, srcRange.maxX + 1);
}
if (xRange.length * srcRange.getHeight() > 100) {
// Too many source tiles are needed -- something probably went wrong
// This sometimes happens for certain non-global projections
// if no extent is specified.
// TODO: detect somehow better? or at least make this a define
var tilesRequired = xRange.length * srcRange.getHeight();
goog.asserts.assert(tilesRequired < ol.RASTER_REPROJ_MAX_SOURCE_TILES,
'reasonable number of tiles is required');
if (tilesRequired > ol.RASTER_REPROJ_MAX_SOURCE_TILES) {
this.state = ol.TileState.ERROR;
return;
}