Package org.geotools.api.style

Interface PolygonSymbolizer

  • All Superinterfaces:
    Symbolizer
    All Known Implementing Classes:
    PolygonSymbolizerImpl
    public interface PolygonSymbolizer
extends Symbolizer
    Holds the information that indicates how to draw the lines and the interior of polygons.
    Since:
    GeoAPI 2.2
    Author:
    Open Geospatial Consortium, Johann Sorel (Geomatys), Chris Dillard (SYS Technologies)

    • Field Detail

      • GRAPHIC_MARGIN_KEY

        static final String GRAPHIC_MARGIN_KEY
        Pixels between each graphic of a polygon fill
        See Also:
        Constant Field Values

    • Method Detail

      • setFill

        void setFill​(Fill fill)
        Provides the graphical-symbolization parameter to use to fill the area of the geometry. Note that the area should be filled first before the outline is rendered.
        Parameters:
        fill - The Fill style to use when rendering the area.

      • getStroke

        Stroke getStroke()
        Returns the object containing all the information necessary to draw styled lines. This is used for the edges of polygons.
        Returns:
        Stroke

      • getFill

        Fill getFill()
        Returns the object that holds the information about how the interior of polygons should be filled. This may be null if the polygons are not to be filled at all.
        Returns:
        Fill

      • setStroke

        void setStroke​(Stroke stroke)
        Provides the graphical-symbolization parameter to use for the outline of the Polygon.
        Parameters:
        stroke - The Stroke style to use when rendering lines.

      • setPerpendicularOffset

        void setPerpendicularOffset​(Expression offset)
        PerpendicularOffset works as defined for LineSymbolizer, allowing to draw polygons smaller or larger than their actual geometry.
        Parameters:
        offset - Offset from the edge polygon positive outside; negative to the inside with a default of 0.

      • getDisplacement

        Displacement getDisplacement()
        The Displacement gives the X and Y displacements from the original geometry. This element may be used to avoid over-plotting of multiple PolygonSymbolizers for one geometry or supplying "shadows" of polygon gemeotries. The displacements are in units of pixels above and to the right of the point. The default displacement is X=0, Y=0.
        Returns:
        Displacement

      • getPerpendicularOffset

        Expression getPerpendicularOffset()
        PerpendicularOffset works as defined for LineSymbolizer, allowing to draw polygons smaller or larger than their actual geometry. The distance is in uoms and is positive to the outside of the polygon. Negative numbers mean drawing the polygon smaller. The default offset is 0.
        Returns:
        Expression

      • accept

        Object accept​(TraversingStyleVisitor visitor,
              Object extraData)
        calls the visit method of a StyleVisitor
        Specified by:
        accept in interface Symbolizer
        Parameters:
        visitor - the style visitor
        Returns:
        value produced

      • setDisplacement

        void setDisplacement​(Displacement displacement)
        Provide x / y offset in pixels used to crate shadows.