org.geotools.renderer.style

Interface MarkFactory

All Known Implementing Classes:

MeteoMarkFactory, QGISMarkFactory, ShapeMarkFactory, TTFMarkFactory, WellKnownMarkFactory, WindBarbsFactory, WKTMarkFactory

public interface MarkFactory

Symbol handler for a Mark.

Method Summary

Modifier and Type	Method and Description
Shape	getShape(Graphics2D graphics, Expression symbolUrl, Feature feature) Turns the specified URL into an Shape, eventually using the Feature attributes to evaluate the expression, or returns null if the factory cannot evaluate this symbolUrl.

Method Detail

getShape

Shape getShape(Graphics2D graphics,
               Expression symbolUrl,
               Feature feature)
        throws Exception

Turns the specified URL into an Shape, eventually using the Feature attributes to evaluate the expression, or returns null if the factory cannot evaluate this symbolUrl.

The returned Shape must not exceed the [-0.5, -0.5, 0.5, 0.5] bounds (will be rescaled according to the parameter given in graphics on the fly

Parameters:

symbolUrl - the expression that will return the symbol name. Once evaluated the expression should return something like plainName or like protocol://path. See the actual implementations for details on the kind of supported name.

feature - The feature that will be used to evaluate the symbolURL expression (or to extract data from it, think complex attributes, in that case a visit to the expression and some direct attribute value extraction might be needed instead)

Throws:

Exception