gov.nasa.worldwindx.examples.tutorial

Class Cube

java.lang.Object

gov.nasa.worldwindx.examples.ApplicationTemplate

gov.nasa.worldwindx.examples.tutorial.Cube

All Implemented Interfaces:

Renderable

public class Cube
extends ApplicationTemplate
implements Renderable

Example of a custom Renderable that draws a cube at a geographic position. This class shows the simplest possible example of a custom Renderable, while still following WorldWind best practices. See https://goworldwind.org/developers-guide/how-to-build-a-custom-renderable/ for a complete description of this example.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	Cube.AppFrame
protected class	Cube.OrderedCube This class holds the Cube's Cartesian coordinates.

Nested classes/interfaces inherited from class gov.nasa.worldwindx.examples.ApplicationTemplate

ApplicationTemplate.AppPanel

Field Summary

Fields

Modifier and Type	Field and Description
protected Cube.OrderedCube	currentFramesOrderedCube
protected long	frameTimestamp
protected PickSupport	pickSupport Support object to help with pick resolution.
protected Position	position Geographic position of the cube.
protected double	size Length of each face, in meters.

Constructor Summary

Constructors

Constructor and Description
Cube(Position position, double sizeInMeters)

Method Summary

Modifier and Type	Method and Description
protected void	beginDrawing(DrawContext dc) Setup drawing state in preparation for drawing the cube.
protected void	drawOrderedRenderable(DrawContext dc, PickSupport pickCandidates) Set up drawing state, and draw the cube.
protected void	drawUnitCube(DrawContext dc) Draw a unit cube, using the active modelview matrix to orient the shape.
protected void	endDrawing(DrawContext dc) Restore drawing state changed in beginDrawing to the default.
protected boolean	intersectsFrustum(DrawContext dc, Cube.OrderedCube orderedCube) Determines whether the cube intersects the view frustum.
static void	main(java.lang.String[] args)
protected Cube.OrderedCube	makeOrderedRenderable(DrawContext dc) Compute per-frame attributes, and add the ordered renderable to the ordered renderable list.
void	render(DrawContext dc) Causes this Renderable to render itself using the provided draw context.

Methods inherited from class gov.nasa.worldwindx.examples.ApplicationTemplate

insertAfterPlacenames, insertBeforeCompass, insertBeforeLayerName, insertBeforePlacenames, start

Methods inherited from class java.lang.Object

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

Field Detail

currentFramesOrderedCube

protected Cube.OrderedCube currentFramesOrderedCube

frameTimestamp

protected long frameTimestamp

pickSupport

protected PickSupport pickSupport

Support object to help with pick resolution.

position

protected Position position

Geographic position of the cube.

size

protected double size

Length of each face, in meters.

Constructor Detail

Cube

public Cube(Position position,
            double sizeInMeters)

Method Detail

beginDrawing

protected void beginDrawing(DrawContext dc)

Setup drawing state in preparation for drawing the cube. State changed by this method must be restored in endDrawing.

Parameters:

dc - Active draw context.

drawOrderedRenderable

protected void drawOrderedRenderable(DrawContext dc,
                                     PickSupport pickCandidates)

Set up drawing state, and draw the cube. This method is called when the cube is rendered in ordered rendering mode.

Parameters:

dc - Current draw context.

pickCandidates - the pick candidate results if in picking mode

drawUnitCube

protected void drawUnitCube(DrawContext dc)

Draw a unit cube, using the active modelview matrix to orient the shape.

Parameters:

dc - Current draw context.

endDrawing

protected void endDrawing(DrawContext dc)

Restore drawing state changed in beginDrawing to the default.

Parameters:

dc - Active draw context.

intersectsFrustum

protected boolean intersectsFrustum(DrawContext dc,
                                    Cube.OrderedCube orderedCube)

Determines whether the cube intersects the view frustum.

Parameters:

dc - the current draw context.

orderedCube - the cube to evaluate.

Returns:

true if this cube intersects the frustum, otherwise false.

main

public static void main(java.lang.String[] args)

makeOrderedRenderable

protected Cube.OrderedCube makeOrderedRenderable(DrawContext dc)

Compute per-frame attributes, and add the ordered renderable to the ordered renderable list.

Parameters:

dc - Current draw context.

Returns:

the ordered cube

render

public void render(DrawContext dc)

Description copied from interface: Renderable

Causes this Renderable to render itself using the provided draw context.

Specified by:

render in interface Renderable

Parameters:

dc - the DrawContext to be used

See Also:

DrawContext