Interface LineSymbolizer

All Superinterfaces:
Symbolizer
All Known Implementing Classes:
LineSymbolizerImpl

public interface LineSymbolizer extends Symbolizer
Gives directions for how to draw lines on a map.
Since:
GeoAPI 2.2
Author:
Open Geospatial Consortium, Johann Sorel (Geomatys), Chris Dillard (SYS Technologies)
  • Method Details

    • getStroke

      Stroke getStroke()
      Returns the object containing all the information necessary to draw styled lines.
      Returns:
      Stroke object, contain information about how to draw lines
    • getPerpendicularOffset

      Expression getPerpendicularOffset()
      PerpendicularOffset allows to draw lines in parallel to the original geometry. For complex line strings these parallel lines have to be constructed so that the distance between original geometry and drawn line stays equal. This construction can result in drawn lines that are actually smaller or longer than the original geometry.

      The distance is in uoms and is positive to the left-hand side of the line string. Negative numbers mean right. 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
    • setStroke

      void setStroke(Stroke stroke)
      Provides the graphical-symbolization parameter to use for the linear geometry.
      Parameters:
      stroke - The Stroke style to use when rendering lines.
    • setPerpendicularOffset

      void setPerpendicularOffset(Expression offset)
      Define an offset to draw lines in parallel to the original geometry.
      Parameters:
      offset - Distance in UOMs to offset line; left-hand side is positive; right-hand side is negative; the default value is 0