Package ucar.unidata.geoloc

Interface Projection

public interface Projection
Projective geometry transformations from (lat,lon) to (x,y) on a projective cartesian surface. Unless it is a rotation from (lat,lon) to (lat,lon).

  • Method Details

    • getClassName

      String getClassName()
      The name of this class of projections, eg "Transverse Mercator".

    • getName

      String getName()
      The name of this projection.

    • isLatLon

      boolean isLatLon()
      Is this the lat/lon Projection ?

    • paramsToString

      String paramsToString()
      String representation of the projection parameters.

    • latLonToProj

      default ProjectionPoint latLonToProj(double lat, double lon)
      Convert lat, lon to Projection point.

    • latLonToProj

      ProjectionPoint latLonToProj(LatLonPoint latlon)
      Convert a LatLonPoint to projection coordinates.
      Parameters:
      latlon - convert from these lat, lon coordinates
      Returns:
      ProjectionPoint convert to these projection coordinates

    • projToLatLon

      default LatLonPoint projToLatLon(double x, double y)
      Convert projection x, y to LatLonPoint point.

    • projToLatLon

      LatLonPoint projToLatLon(ProjectionPoint ppt)
      Convert projection coordinates to a LatLonPoint.
      Parameters:
      ppt - convert from these projection coordinates
      Returns:
      lat/lon coordinates

    • crossSeam

      boolean crossSeam(ProjectionPoint pt1, ProjectionPoint pt2)
      Does the line between these two points cross the projection "seam", which is a discontinuity in the function latlon <-> projection plane
      Parameters:
      pt1 - the line goes between these two points
      pt2 - the line goes between these two points
      Returns:
      false if there is no seam, or the line does not cross it.

    • equals

      boolean equals(Object proj)
      Check for equality with the object in question
      Overrides:
      equals in class Object
      Parameters:
      proj - projection to check
      Returns:
      true if this represents the same Projection as proj.

    • getProjectionParameters

      List<ucar.unidata.util.Parameter> getProjectionParameters()
      Get parameters as list of ucar.unidata.util.Parameter
      Returns:
      List of parameters TODO will return ImmutableList in ver6

    • latLonToProjBB

      ProjectionRect latLonToProjBB(LatLonRect latlonRect)
      Convert a lat/lon bounding box to a world coordinate bounding box, by finding the minimum enclosing box. Handles lat/lon points that do not intersect the projection panel.
      Parameters:
      latlonRect - input lat,lon bounding box
      Returns:
      minimum enclosing box in world coordinates, or null if no part of the LatLonRect intersects the projection plane