Michael Grain ha scritto:
> Hi,
>
> Please somebody tell me whats wrong in my code!
> Instead images in my application displayed gray squares (
> Here is my code:
>
>
> public static Style getPointStyle() {
> StyleBuilder styleBuilder = new StyleBuilder();
> Style style = styleBuilder.createStyle();
> {
> {
> PointSymbolizer pointSymbolizer =
> styleBuilder.createPointSymbolizer();
> {
> Graphic graphic = styleBuilder.createGraphic();
I think this is the problem. The style builder is meant to whip
up a style very quickly, it's not a factory that gives you
back empty objects, if you don't tell it what to do it fill in the
blanks.
In particular this will return a graphic with the default mark
inside, which is a gray square.
Since it can be rendered, the alternative graphics you're adding
after it won't even be considered (as per SLD rules, the first
mark/external that renders is used, usually the setup is
the opposite, first an external graphics that may fail to
be retrieved, then a Mark that will always render as a fallback).
> File file = new File( "d:/pan.png");
> if( !file.exists() ) logger.error("file not found");
> ExternalGraphic external =
> styleBuilder.createExternalGraphic( "file:///" + file, "image/png");
> graphic.graphicalSymbols().add( external );
Try graphic.graphicalSymbolols().clear and then add your external
graphic.
Cheers
Andrea
--
Andrea Aime
OpenGeo - http://opengeo.org
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