Interface MarkFactory

All Known Implementing Classes:
MeteoMarkFactory, QGISMarkFactory, ShapeMarkFactory, SVGMarkFactory, TTFMarkFactory, WellKnownMarkFactory, WindBarbsFactory, WKTMarkFactory

public interface MarkFactory
Symbol handler for a Mark.
  • Method Summary

    Modifier and Type
    Method
    Description
    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 Details

    • 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