Hello Akos,
Mmm... not sure what the problem is there. I just tested the Divide
expression (which is confusingly not a filter function)
programmatically with double-valued literals and it worked as expected
(see test below). Next I tried it from a SLD file (also below) and got
points labelled "42.0".
Michael
public class DivTest {
@Test
public void divWithDouble() throws Exception {
FilterFactory2 ff2 = CommonFactoryFinder.getFilterFactory2();
Expression div = ff2.divide(ff2.literal(84.0), ff2.literal(2));
Object answer = div.evaluate(null);
assertEquals("The answer should be 42",
42.0, ((Number) answer).doubleValue(), 1e-8);
}
}
<?xml version="1.0" encoding="ISO-8859-1"?>
<StyledLayerDescriptor version="1.0.0"
xsi:schemaLocation="http://www.opengis.net/sld
StyledLayerDescriptor.xsd"
xmlns="http://www.opengis.net/sld";
xmlns:ogc="http://www.opengis.net/ogc";
xmlns:xlink="http://www.w3.org/1999/xlink";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
<NamedLayer>
<Name>Divide test</Name>
<UserStyle>
<FeatureTypeStyle>
<Rule>
<PointSymbolizer>
<Graphic>
<Mark>
<WellKnownName>circle</WellKnownName>
<Fill>
<CssParameter
name="fill">#FF0000</CssParameter>
</Fill>
</Mark>
<Size>6</Size>
</Graphic>
</PointSymbolizer>
<TextSymbolizer>
<Label>
<ogc:Div>
<ogc:Literal>84.0</ogc:Literal>
<ogc:Literal>2</ogc:Literal>
</ogc:Div>
</Label>
<Font>
<CssParameter
name="font-family">Arial</CssParameter>
<CssParameter name="font-size">12</CssParameter>
<CssParameter
name="font-style">normal</CssParameter>
<CssParameter name="font-weight">bold</CssParameter>
</Font>
<LabelPlacement>
<PointPlacement>
<AnchorPoint>
<AnchorPointX>0.5</AnchorPointX>
<AnchorPointY>0.0</AnchorPointY>
</AnchorPoint>
<Displacement>
<DisplacementX>0</DisplacementX>
<DisplacementY>5</DisplacementY>
</Displacement>
</PointPlacement>
</LabelPlacement>
<Fill>
<CssParameter name="fill">#000000</CssParameter>
</Fill>
</TextSymbolizer>
</Rule>
</FeatureTypeStyle>
</UserStyle>
</NamedLayer>
</StyledLayerDescriptor>
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