[Gwt-openlayers-users] Fill WKT polygon with image [SEC=UNCLASSIFIED]

[Lenou, P. (Contractor) <Pet...@ds...>]

UNCLASSIFIED

Hi,

 

I have a WKT polygon drawn on a map via:

 

    WKT wkt = new WKT();

    VectorFeature[] vectorFeatures = wkt.read(getGeometryWKT());

    Vector polygonsLayer = new Vector("Polygons");

    for (VectorFeature vectorFeature : vectorFeatures)
polygonsLayer.addFeature(vectorFeature);

 

I would now like to fill the polygons/bounding boxes drawn with an
image. I am able to create an Image overlay on a map using Image. I did
this by converting the javascript in this sample to client side code:
http://openlayers.org/dev/examples/image-layer.html.

 

However, I have the need to rotate my images an arbitrary number of
degrees. There is no rotate function on the Image object. I found
another sample demonstrating what I want (see
http://gis.ibbeck.de/ginfo/apps/OLExamples/OL27/examples/ExternalGraphic
Overlay/ExternalGraphicOverlay.asp). This sample sets the rotation angle
via the Style applied to the Vector, but such a property is not
available in the openlayers-gwt module. Also, I the external graphic I
set does not display. The client side code I am using based on the
javascript source is listed below:

 

    Vector vectorLayer = new Vector("externalGraphic Overlay");

    Style style = new Style();

    style. setExternalGraphic
("http://www.openlayers.org/images/OpenLayers.trac.png");

    style.setGraphicOffset(50, 50);

    StyleMap oStyleMap = new StyleMap(style);

    vectorLayer.setStyleMap(oStyleMap);

    map.addLayer(vectorLayer);

 

Can someone recommend a way to fill a bounding box with an image or
overlay an image and be able to rotate the image a variable number of
degrees?

 

Any help is greatly appreciated.

 

Thanks,

Peter

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