Class WellKnownMarkFactory

  • All Implemented Interfaces:

    public class WellKnownMarkFactory
    extends Object
    implements MarkFactory
    The WellKnownMarkFactory is used to hold the knolwedge of how to draw all the marks hardboiled into the SLD specification (cross, arrow, triangle etc...)
    • Constructor Detail

      • WellKnownMarkFactory

        public WellKnownMarkFactory()
    • Method Detail

      • getShape

        public Shape getShape​(Graphics2D graphics,
                              Expression symbolUrl,
                              Feature feature)
                       throws Exception
        Description copied from interface: MarkFactory
        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

        Specified by:
        getShape in interface MarkFactory
        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)