Package org.geotools.gce.imagemosaic.egr

Class RendererUtilities

  • public final class RendererUtilities
extends Object
    This is a reduced copy of RenderUtilities found in the render module, to avoid adding a dependency on it while using only a few methods

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static Envelope createMapEnvelope​(Rectangle paintArea, AffineTransform worldToScreen)
      Creates the map's bounding box in real world coordinates.
      static AffineTransform worldToScreenTransform​(ReferencedEnvelope mapExtent, Rectangle paintArea)
      Sets up the affine transform

      • Methods inherited from class Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • worldToScreenTransform

        public static AffineTransform worldToScreenTransform​(ReferencedEnvelope mapExtent,
                                                     Rectangle paintArea)
        Sets up the affine transform

        NOTE It is worth to note that here we do not take into account the half a pixel translation stated by ogc for coverages bounds. One reason is that WMS 1.1.1 does not follow it!!!

        Parameters:
        mapExtent - the map extent
        paintArea - the size of the rendering output area
        Returns:
        a transform that maps from real world coordinates to the screen

      • createMapEnvelope

        public static Envelope createMapEnvelope​(Rectangle paintArea,
                                         AffineTransform worldToScreen)
                                  throws NoninvertibleTransformException
        Creates the map's bounding box in real world coordinates.
        Parameters:
        worldToScreen - a transform which converts World coordinates to screen pixel coordinates. No assumptions are done on axis order as this is assumed to be pre-calculated. The affine transform may specify an rotation, in case the envelope will encompass the complete (rotated) world polygon.
        paintArea - the size of the rendering output area
        Returns:
        the envelope in world coordinates corresponding to the screen rectangle.
        Throws:
        NoninvertibleTransformException