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Change to getZoomForResolution() (and those who call it) so that it does not choose the closest fit by default. Doing so was causing us problems, because user would drag a zoom box and then the map's new zoom would not contain said zoombox. Not good. Default is back to how it was before, but now there's an option 'closest' for those times when what we really want is the closest. Right now, the only time that's true is when we're switching baselayers. This is based on the work from sandbox/euzuro/zoomToResolution, which is started by reverting r4318. (Closes #1043)

Browse Source 
git-svn-id: http://svn.openlayers.org/trunk/openlayers@4792 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
euzuro
2007-10-03 19:21:05 +00:00
parent cb494d0c3f
commit 137a69b17a
9 changed files with 86 additions and 122 deletions
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tests/Layer/test_Grid.html
+4 -18
View File
@@ -150,26 +150,12 @@
bounds = new OpenLayers.Bounds(10,10,12,12);
zoom = layer.getZoomForExtent(bounds);
/**
* ideal resolution: 2 map units / 500px = 0.004
* layer.resolutions = [1.40625, 0.703125, 0.3515625, 0.17578125,
* 0.087890625, 0.0439453125, 0.02197265625,
* 0.010986328125, 0.0054931640625, 0.00274658203125,
* 0.001373291015625, 0.0006866455078125, 0.00034332275390625,
* 0.000171661376953125, 0.0000858306884765625, 0.00004291534423828125]
*
* So, we expect a zoom of 9 because it is the closest resolution.
*/
t.eq( zoom, 9, "getZoomForExtent() returns correct value");
t.eq( zoom, 8, "getZoomForExtent() returns correct value");
bounds = new OpenLayers.Bounds(10,10,100,100);
zoom = layer.getZoomForExtent(bounds);
/**
* ideal resolution: 90 map units / 500px = 0.18
* So, we expect a zoom of 3 because it is the closest.
*/
t.eq( zoom, 3, "getZoomForExtent() returns correct value");
t.eq( zoom, 2, "getZoomForExtent() returns correct value");
}
function test_07_Layer_Grid_moveTo(t) {
@@ -555,10 +541,10 @@
map.zoomToMaxExtent();
map.zoomIn();
var bounds = layer.getTileBounds(new OpenLayers.Pixel(200,200));
t.eq(bounds.toBBOX(), "-90,0,0,90", "get tile bounds returns correct bounds");
t.eq(bounds.toBBOX(), "-180,-90,0,90", "get tile bounds returns correct bounds");
map.pan(200,0);
var bounds = layer.getTileBounds(new OpenLayers.Pixel(200,200));
t.eq(bounds.toBBOX(), "0,0,90,90", "get tile bounds returns correct bounds after pan");
t.eq(bounds.toBBOX(), "0,-90,180,90", "get tile bounds returns correct bounds after pan");
}
function test_Layer_Grid_moveTo_buffer_calculation (t) {
tests/Layer/test_KaMap.html
+4 -18
View File
@@ -128,26 +128,12 @@
bounds = new OpenLayers.Bounds(10,10,12,12);
zoom = layer.getZoomForExtent(bounds);
/**
* ideal resolution: 2 map units / 500px = 0.004
* layer.resolutions = [1.40625, 0.703125, 0.3515625, 0.17578125,
* 0.087890625, 0.0439453125, 0.02197265625,
* 0.010986328125, 0.0054931640625, 0.00274658203125,
* 0.001373291015625, 0.0006866455078125, 0.00034332275390625,
* 0.000171661376953125, 0.0000858306884765625, 0.00004291534423828125]
*
* So, we expect a zoom of 9 because it is the closest resolution.
*/
t.eq( zoom, 9, "getZoomForExtent() returns correct value");
t.eq( zoom, 8, "getZoomForExtent() returns correct value");
bounds = new OpenLayers.Bounds(10,10,100,100);
zoom = layer.getZoomForExtent(bounds);
/**
* ideal resolution: 90 map units / 500px = 0.18
* So, we expect a zoom of 3 because it is the closest.
*/
t.eq( zoom, 3, "getZoomForExtent() returns correct value");
t.eq( zoom, 2, "getZoomForExtent() returns correct value");
}
function test_06_Layer_kaMap_mergeNewParams (t) {
@@ -250,10 +236,10 @@
map.zoomToMaxExtent();
map.zoomIn();
var bounds = layer.getTileBounds(new OpenLayers.Pixel(200,200));
t.eq(bounds.toBBOX(), "-90,0,0,90", "get tile bounds returns correct bounds");
t.eq(bounds.toBBOX(), "-180,0,0,180", "get tile bounds returns correct bounds");
map.pan(200,0);
var bounds = layer.getTileBounds(new OpenLayers.Pixel(200,200));
t.eq(bounds.toBBOX(), "0,0,90,90", "get tile bounds returns correct bounds after pan");
t.eq(bounds.toBBOX(), "0,0,180,180", "get tile bounds returns correct bounds after pan");
}
function test_99_Layer_KaMap_destroy (t) {
tests/Layer/test_TMS.html
+4 -17
View File
@@ -77,26 +77,13 @@
bounds = new OpenLayers.Bounds(10,10,12,12);
zoom = layer.getZoomForExtent(bounds);
/**
* ideal resolution: 2 map units / 500px = 0.004
* layer.resolutions = [1.40625, 0.703125, 0.3515625, 0.17578125,
* 0.087890625, 0.0439453125, 0.02197265625,
* 0.010986328125, 0.0054931640625, 0.00274658203125,
* 0.001373291015625, 0.0006866455078125, 0.00034332275390625,
* 0.000171661376953125, 0.0000858306884765625, 0.00004291534423828125]
*
* So, we expect a zoom of 9 because it is the closest resolution.
*/
t.eq( zoom, 9, "getZoomForExtent() returns correct value");
t.eq( zoom, 8, "getZoomForExtent() returns correct value");
bounds = new OpenLayers.Bounds(10,10,100,100);
zoom = layer.getZoomForExtent(bounds);
/**
* ideal resolution: 90 map units / 500px = 0.18
* So, we expect a zoom of 3 because it is the closest.
*/
t.eq( zoom, 3, "getZoomForExtent() returns correct value");
t.eq( zoom, 2, "getZoomForExtent() returns correct value");
}
tests/Layer/test_TileCache.html
+3 -17
View File
@@ -78,27 +78,13 @@
bounds = new OpenLayers.Bounds(10,10,12,12);
zoom = layer.getZoomForExtent(bounds);
/**
* ideal resolution: 2 map units / 500px = 0.004
* layer.resolutions = [0.703125, 0.3515625, 0.17578125,
* 0.087890625, 0.0439453125, 0.02197265625,
* 0.010986328125, 0.0054931640625, 0.00274658203125,
* 0.001373291015625, 0.0006866455078125, 0.00034332275390625,
* 0.000171661376953125, 0.0000858306884765625, 0.00004291534423828125,
* 0.000021457672119140625]
*
* So, we expect a zoom of 8 because it is the closest resolution.
*/
t.eq( zoom, 8, "getZoomForExtent() returns correct value");
t.eq( zoom, 7, "getZoomForExtent() returns correct value");
bounds = new OpenLayers.Bounds(10,10,100,100);
zoom = layer.getZoomForExtent(bounds);
/**
* ideal resolution: 90 map units / 500px = 0.18
* So, we expect a zoom of 2 because it is the closest.
*/
t.eq( zoom, 2, "getZoomForExtent() returns correct value");
t.eq( zoom, 1, "getZoomForExtent() returns correct value");
}
tests/Layer/test_WrapDateLine.html
+9 -9
View File
@@ -131,9 +131,9 @@
var m = new OpenLayers.Map('map');
m.addLayer(layer);
m.zoomToMaxExtent();
t.eq(layer.grid[3][0].url, "http://octo.metacarta.com/cgi-bin/mapserv?MAP=%2Fmapdata%2Fvmap_wms.map&LAYERS=basic&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=0%2C0%2C90%2C90&WIDTH=256&HEIGHT=256", "cell [3][0] is wrapped around the world.");
t.eq(layer.grid[0][0].url, "http://octo.metacarta.com/cgi-bin/mapserv?MAP=%2Fmapdata%2Fvmap_wms.map&LAYERS=basic&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=0%2C270%2C90%2C360&WIDTH=256&HEIGHT=256", "cell [0][0] is wrapped around the world lon, but not lat");
t.eq(layer.grid[0][3].url, "http://octo.metacarta.com/cgi-bin/mapserv?MAP=%2Fmapdata%2Fvmap_wms.map&LAYERS=basic&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=-90%2C270%2C0%2C360&WIDTH=256&HEIGHT=256", "cell [3][0] is not wrapped at all.");
t.eq(layer.grid[3][0].url, "http://octo.metacarta.com/cgi-bin/mapserv?MAP=%2Fmapdata%2Fvmap_wms.map&LAYERS=basic&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=0%2C-90%2C180%2C90&WIDTH=256&HEIGHT=256", "cell [3][0] is wrapped around the world.");
t.eq(layer.grid[0][0].url, "http://octo.metacarta.com/cgi-bin/mapserv?MAP=%2Fmapdata%2Fvmap_wms.map&LAYERS=basic&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=0%2C450%2C180%2C630&WIDTH=256&HEIGHT=256", "cell [0][0] is wrapped around the world lon, but not lat");
t.eq(layer.grid[0][3].url, "http://octo.metacarta.com/cgi-bin/mapserv?MAP=%2Fmapdata%2Fvmap_wms.map&LAYERS=basic&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=-180%2C450%2C0%2C630&WIDTH=256&HEIGHT=256", "cell [3][0] is not wrapped at all.");
}
function test_Layer_WrapDateLine_KaMap (t) {
@@ -146,9 +146,9 @@
var m = new OpenLayers.Map('map');
m.addLayer(layer);
m.zoomToMaxExtent();
t.eq(layer.grid[0][0].url, "http://www.openlayers.org/world/index.php?g=satellite&map=world&i=jpeg&t=-1280&l=0&s=110735960.625", "grid[0][0] kamap is okay");
t.eq(layer.grid[0][3].url, "http://www.openlayers.org/world/index.php?g=satellite&map=world&i=jpeg&t=-1280&l=-256&s=110735960.625", "grid[0][3] kamap is okay");
t.eq(layer.grid[3][0].url, "http://www.openlayers.org/world/index.php?g=satellite&map=world&i=jpeg&t=-512&l=0&s=110735960.625", "grid[3][0] is okay");
t.eq(layer.grid[0][0].url, "http://www.openlayers.org/world/index.php?g=satellite&map=world&i=jpeg&t=-1280&l=0&s=221471921.25", "grid[0][0] kamap is okay");
t.eq(layer.grid[0][3].url, "http://www.openlayers.org/world/index.php?g=satellite&map=world&i=jpeg&t=-1280&l=-256&s=221471921.25", "grid[0][3] kamap is okay");
t.eq(layer.grid[3][0].url, "http://www.openlayers.org/world/index.php?g=satellite&map=world&i=jpeg&t=-512&l=0&s=221471921.25", "grid[3][0] is okay");
}
function test_Layer_WrapDateLine_WMS_Overlay (t) {
t.plan( 3 );
@@ -163,9 +163,9 @@
var m = new OpenLayers.Map('map');
m.addLayers([baselayer,layer]);
m.zoomToMaxExtent();
t.eq(layer.grid[0][0].url, "http://www2.dmsolutions.ca/cgi-bin/mswms_gmap?LAYERS=bathymetry%2Cland_fn%2Cpark%2Cdrain_fn%2Cdrainage%2Cprov_bound%2Cfedlimit%2Crail%2Croad%2Cpopplace&TRANSPARENT=true&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=0%2C270%2C90%2C360&WIDTH=256&HEIGHT=256", "grid[0][0] wms overlay is okay");
t.eq(layer.grid[0][3].url, "http://www2.dmsolutions.ca/cgi-bin/mswms_gmap?LAYERS=bathymetry%2Cland_fn%2Cpark%2Cdrain_fn%2Cdrainage%2Cprov_bound%2Cfedlimit%2Crail%2Croad%2Cpopplace&TRANSPARENT=true&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=-90%2C270%2C0%2C360&WIDTH=256&HEIGHT=256", "grid[0][3] wms overlay is okay");
t.eq(layer.grid[3][0].url, "http://www2.dmsolutions.ca/cgi-bin/mswms_gmap?LAYERS=bathymetry%2Cland_fn%2Cpark%2Cdrain_fn%2Cdrainage%2Cprov_bound%2Cfedlimit%2Crail%2Croad%2Cpopplace&TRANSPARENT=true&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=0%2C0%2C90%2C90&WIDTH=256&HEIGHT=256", "grid[3][0] wms overlay okay");
t.eq(layer.grid[0][0].url, "http://www2.dmsolutions.ca/cgi-bin/mswms_gmap?LAYERS=bathymetry%2Cland_fn%2Cpark%2Cdrain_fn%2Cdrainage%2Cprov_bound%2Cfedlimit%2Crail%2Croad%2Cpopplace&TRANSPARENT=true&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=0%2C450%2C180%2C630&WIDTH=256&HEIGHT=256", "grid[0][0] wms overlay is okay");
t.eq(layer.grid[0][3].url, "http://www2.dmsolutions.ca/cgi-bin/mswms_gmap?LAYERS=bathymetry%2Cland_fn%2Cpark%2Cdrain_fn%2Cdrainage%2Cprov_bound%2Cfedlimit%2Crail%2Croad%2Cpopplace&TRANSPARENT=true&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=-180%2C450%2C0%2C630&WIDTH=256&HEIGHT=256", "grid[0][3] wms overlay is okay");
t.eq(layer.grid[3][0].url, "http://www2.dmsolutions.ca/cgi-bin/mswms_gmap?LAYERS=bathymetry%2Cland_fn%2Cpark%2Cdrain_fn%2Cdrainage%2Cprov_bound%2Cfedlimit%2Crail%2Croad%2Cpopplace&TRANSPARENT=true&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=0%2C-90%2C180%2C90&WIDTH=256&HEIGHT=256", "grid[3][0] wms overlay okay");
}
</script>