[OpenLayers-Users] Why does OpenLayers.Layer.WMS shows vectors well and OpenLayers.Layer.OSM does not? (Same code)

[alexe100]

I
I have a web page that shows points features and one line in the map
If I use:
var layer = new OpenLayers.Layer.WMS( "OpenLayers
WMS","http://vmap0.tiles.osgeo.org/wms/vmap0", {layers: 'basic'} );
map.addLayer(layer); 

the vectors are well shown.

IF I use this instead:
var layer = new OpenLayers.Layer.OSM();
map.addLayer(layer);

only one point feature is shown on the  map and the text font has bad
quality.

I have attached images for you to see the effect.

In the tests i only comment uncomment the next block of code. All the rest
source code remains unchanged.



...

//var layer = new OpenLayers.Layer.WMS( "OpenLayers
WMS","http://vmap0.tiles.osgeo.org/wms/vmap0", {layers: 'basic'} );
//map.addLayer(layer);
			
var layer = new OpenLayers.Layer.OSM();
map.addLayer(layer);

...

It seems that OpenLayers.Layer.OSM influences the appearance of the vector
on the screen

I need to use OpenLayers.Layer.OSM because it has more details than
OpenLayers.Layer.WMS but it disturns vectors.

Thanks a lot

Alex

http://osgeo-org.1560.n6.nabble.com/file/n4915184/osm.jpg 

http://osgeo-org.1560.n6.nabble.com/file/n4915184/wms.jpg 



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