Hi,
There's indeed no configuration option to set the maxZoomLevel. The
problem is that OpenLayers has hardcoded that the maximum zoom level
is 19 and setting a configuration option to go beyond this has no
effect. Unless they have changed the behavior since I wrote the code,
the only way to get past this limitation is to look for the
MAX_ZOOM_LEVEL variable in openlayers and replace it with the desired
value.
And do the same in Mapbuilder:
MapPaneOL.js line 352
baseLayer = new OpenLayers.Layer.Google( baseLayerName , {type:
baseLayerType, minZoomLevel: 0, maxZoomLevel:19, sphericalMercator:
sphericalMercator }, baseLayerOptions );
objRef.model.map.numZoomLevels = 20;
So yes it is a bug but it also requires a fix upstream.
Regards,
Steven
On Jan 29, 2008, at 10:29 AM, Toan Nguyen wrote:
I have checked in config.xml and google.xml, I don't see any param
to set max scale.
google.xml file:
<?xml version="1.0" encoding="utf-8" standalone="no" ?>
<OWSContext version="0.0.13"
id="ows-context-tie"
xmlns="http://www.opengis.net/context";
xmlns:xlink="http://www.w3.org/1999/xlink";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns:sld="http://www.opengis.net/sld";
xmlns:ogc="http://www.opengis.net/ogc";
xmlns:ows="http://www.opengis.net/ows";
xmlns:param="http;//www.opengis.net/param"
xsi:schemaLocation="http://www.opengis.net/oc oc_0_0_13.xsd">
<General>
<Window width="500" height="300"/>
<ows:BoundingBox crs="EPSG:900913">
<ows:LowerCorner>-20037508.34 -20037508.34</ows:LowerCorner>
<ows:UpperCorner>20037508.34 20037508.34</ows:UpperCorner>
</ows:BoundingBox>
<Title>OWS context with Google</Title>
<Abstract> The OGC Web Services Context Document with google
baselayer (mapbuilder only ATM)</Abstract>
</General>
<ResourceList>
<ows:BaseLayer>
<Server service="Google"/>
<Name>GoogleHybrid</Name>
<ows:TileSet>
<!--ows:resolutions/-->
<ows:SRS>EPSG:900913</ows:SRS>
<ows:BoundingBox SRS="EPSG:900913" minx="11875944.65"
miny="1206711.65" maxx="11885793.53" maxy="1215960.25"/>
<ows:Layers>hybrid</ows:Layers>
<!-- <ows:Width/> -->
<!-- <ows:Format/> -->
</ows:TileSet>
</ows:BaseLayer>
</ResourceList>
</OWSContext>
And config.xml file:
<?xml version="1.0" encoding="utf-8" standalone="no"?>
<MapbuilderConfig version="0.2.1" id="simpleTemplate"
xmlns="http://mapbuilder.sourceforge.net/mapbuilder";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://mapbuilder.sourceforge.net/
mapbuilder ../../lib/schemas/config.xsd">
<models>
<OwsContext id="mainMap">
<defaultModelUrl>../data/context/google.xml</defaultModelUrl>
<widgets>
<MapPaneOL id="mainMapWidget">
<htmlTagId>mainMapPane</htmlTagId>
</MapPaneOL>
<PanZoomBar id="panZoomBar"/>
<CursorTrack id="cursorTrack">
<showXY>true</showXY>
<showLatLong>false</showLatLong>
<precision>2</precision>
</CursorTrack>
<MapScaleText id="scaleText"></MapScaleText>
</widgets>
<tools>
<History id="extentHistory"/>
</tools>
<nodeSelectXpath>/wmc:ViewContext/wmc:LayerList/wmc:Layer</
nodeSelectXpath>
</OwsContext>
</models>
<widgets>
.........
</widgets>
<skinDir>../../lib/skin/default</skinDir>
<widgetTextUrl>widgetText.xml</widgetTextUrl>
<!-- relative to the skin dir -->
</MapbuilderConfig>
--
Nguyễn Đình Toán
-------------------------
Neu khong doc duoc tieng Viet, vui long vao menu View --> chon
Encoding --> chon Unicode (UTF-8). Cam on.
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