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#632: fixing the image layer that broke with r2979 - layer now sets its tileSize and imageSize appropriately - this also addesses (dup) ticket 511

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@3020 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
Tim Schaub
2007-04-05 22:35:54 +00:00
parent 1de25d5f04
commit cd6f2dd006
3 changed files with 55 additions and 21 deletions
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20
tests/Layer/test_Image.html
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@@ -18,7 +18,7 @@
t.eq( layer.name, "Test Layer", "layer.name is correct" );
t.ok( layer.id != null, "Layer is given an id");
t.ok( layer.projection, "none", "default layer projection correctly set");
t.eq( layer.projection, "none", "default layer projection correctly set");
t.ok( ((layer.chicken == 151) && (layer.foo == "bar")), "layer.options correctly set to Layer Object" );
t.ok( ((layer.options["chicken"] == 151) && (layer.options["foo"] == "bar")), "layer.options correctly backed up" );
@@ -39,7 +39,7 @@
}
function test_50_Layer_Image_tileTests (t) {
t.plan(4);
t.plan(9);
var map = new OpenLayers.Map('map');
layer = new OpenLayers.Layer.Image('Test Layer',
@@ -49,8 +49,20 @@
map.addLayer(layer);
map.zoomToMaxExtent();
t.eq(layer.tile.position.x,-40, "Tile x positioned correctly at maxextent");
t.eq(layer.tile.position.y,107, "Tile y positioned correctly at maxextent");
t.ok(layer.imageSize, "layer.imageSize is set");
t.ok(layer.tileSize, "layer.tileSize is set");
t.ok(layer.tileSize.equals(layer.imageSize), "tileSize equals imageSize");
// no resolution info was sent, so maxResolution should be calculated
// by aspectRatio*extent/size (this is the pixel aspect ratio)
var aspectRatio = (layer.extent.getHeight() / layer.size.h) /
(layer.extent.getWidth() / layer.size.w);
t.eq(aspectRatio, layer.aspectRatio, "aspectRatio is properly set");
var maxExtent = aspectRatio * layer.extent.getWidth() / layer.size.w;
t.eq(maxExtent, layer.maxResolution, "maxResolution is properly set");
t.eq(layer.tile.position.x,-42, "Tile x positioned correctly at maxextent");
t.eq(layer.tile.position.y,106, "Tile y positioned correctly at maxextent");
t.eq(layer.tile.imgDiv.src, "http://earthtrends.wri.org/images/maps/4_m_citylights_lg.gif", "URL is correct");
map.zoomIn();
t.eq(layer.tile.imgDiv.src, "http://earthtrends.wri.org/images/maps/4_m_citylights_lg.gif", "URL is correct");