gov.nasa.worldwind.render
Class BasicAnnotationRenderer

java.lang.Object
  gov.nasa.worldwind.render.BasicAnnotationRenderer

All Implemented Interfaces:

AnnotationRenderer

public class BasicAnnotationRenderer
extends Object
implements AnnotationRenderer

Basic implementation of AnnotationRenderer. Process Annotation rendering as OrderedRenderable objects batch.

See Also:

AbstractAnnotation, AnnotationAttributes, AnnotationLayer

Nested Class Summary

protected class

BasicAnnotationRenderer.OrderedAnnotation

Field Summary

protected PickSupport

pickSupport

Constructor Summary

BasicAnnotationRenderer()

Method Summary

protected void	beginDrawAnnotations(DrawContext dc, OGLStackHandler stackHandler)
protected void	drawMany(DrawContext dc, Iterable<Annotation> annotations, Layer layer)
protected void	drawOne(DrawContext dc, Annotation annotation, Vec4 annotationPoint, Layer layer)
protected void	endDrawAnnotations(DrawContext dc, OGLStackHandler stackHandler)
protected Vec4	getAnnotationDrawPoint(DrawContext dc, Annotation annotation) Get the final Vec4 point at which an annotation will be drawn.
protected static boolean	isAnnotationValid(Annotation annotation, boolean checkPosition)
protected boolean	isAtPickRange(DrawContext dc, Annotation annotation)
void	pick(DrawContext dc, Annotation annotation, Vec4 annotationPoint, Point pickPoint, Layer layer)
void	pick(DrawContext dc, Iterable<Annotation> annotations, Point pickPoint, Layer layer)
void	render(DrawContext dc, Annotation annotation, Vec4 annotationPoint, Layer layer)
void	render(DrawContext dc, Iterable<Annotation> annotations, Layer layer)

Methods inherited from class java.lang.Object

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

Field Detail

pickSupport

protected PickSupport pickSupport

Constructor Detail

BasicAnnotationRenderer

public BasicAnnotationRenderer()

Method Detail

beginDrawAnnotations

protected void beginDrawAnnotations(DrawContext dc,
                                    OGLStackHandler stackHandler)

drawMany

protected void drawMany(DrawContext dc,
                        Iterable<Annotation> annotations,
                        Layer layer)

drawOne

protected void drawOne(DrawContext dc,
                       Annotation annotation,
                       Vec4 annotationPoint,
                       Layer layer)

endDrawAnnotations

protected void endDrawAnnotations(DrawContext dc,
                                  OGLStackHandler stackHandler)

getAnnotationDrawPoint

protected Vec4 getAnnotationDrawPoint(DrawContext dc,
                                      Annotation annotation)

Get the final Vec4 point at which an annotation will be drawn. If the annotation Position elevation is lower then the highest elevation on the globe, it will be drawn above the ground using its elevation as an offset. Otherwise, the original elevation will be used.

Parameters:

dc - the current DrawContext.

annotation - the annotation

Returns:

the annotation draw cartesian point

isAnnotationValid

protected static boolean isAnnotationValid(Annotation annotation,
                                           boolean checkPosition)

isAtPickRange

protected boolean isAtPickRange(DrawContext dc,
                                Annotation annotation)

pick

public void pick(DrawContext dc,
                 Annotation annotation,
                 Vec4 annotationPoint,
                 Point pickPoint,
                 Layer layer)

Specified by:

pick in interface AnnotationRenderer

pick

public void pick(DrawContext dc,
                 Iterable<Annotation> annotations,
                 Point pickPoint,
                 Layer layer)

Specified by:

pick in interface AnnotationRenderer

render

public void render(DrawContext dc,
                   Annotation annotation,
                   Vec4 annotationPoint,
                   Layer layer)

Specified by:

render in interface AnnotationRenderer

render

public void render(DrawContext dc,
                   Iterable<Annotation> annotations,
                   Layer layer)

Specified by:

render in interface AnnotationRenderer