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Aviatrix3D 1.0 | ||||||||||
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java.lang.Objectorg.j3d.aviatrix3d.SceneGraphObject
org.j3d.aviatrix3d.NodeComponent
org.j3d.aviatrix3d.Geometry
org.j3d.aviatrix3d.VertexGeometry
org.j3d.aviatrix3d.TriangleFanArray
An OpenGL TriangleFanArray.
Part of the optimisation we make is to only copy into the underlying structures the exact number of coordinates, normals etc that are needed. To know this number, we need to know how many coordinates exist before attempting to set anything else. When constructing, or updating, geometry, you should always make sure that you first set the vertex list, then the sizing information for the strip or fan counts, and then set normals as needed.
Field Summary |
Fields inherited from class org.j3d.aviatrix3d.Geometry |
bounds, implicitBounds, internalUpdater, INVALID_BOUNDS, lastParentList, parentList, pickFlags, validAlpha |
Fields inherited from class org.j3d.aviatrix3d.NodeComponent |
lastParent, liveCount |
Fields inherited from class org.j3d.aviatrix3d.SceneGraphObject |
alive, LISTENER_SET_NOT_LIVE_MESSAGE, updateHandler, WRITE_TIMING_MSG |
Fields inherited from interface org.j3d.aviatrix3d.PickableObject |
COLLIDABLE_OBJECT, GENERAL_OBJECT, PROXIMITY_OBJECT, VISIBLE_OBJECT |
Constructor Summary | |
TriangleFanArray()
Constructs a TriangleFanArray with default values. |
Method Summary | |
void |
getFanCount(int[] values)
Get the sizes of the valid fans. |
int |
getValidFanCount()
Get the number of valid fans that are defined for this geometry. |
protected boolean |
isVisible()
Check to see if this geometry is making the geometry visible or not. |
boolean |
pickLineRay(float[] origin,
float[] direction,
boolean findAny,
float[] dataOut,
int dataOutFlags)
Check for all intersections against this geometry using a line ray and return the exact distance away of the closest picking point. |
boolean |
pickLineSegment(float[] start,
float[] end,
boolean findAny,
float[] dataOut,
int dataOutFlags)
Check for all intersections against this geometry using a line segment and return the exact distance away of the closest picking point. |
void |
postRender(net.java.games.jogl.GL gl,
net.java.games.jogl.GLU glu)
Restore all openGL state. |
void |
render(net.java.games.jogl.GL gl,
net.java.games.jogl.GLU glu)
Issue ogl commands needed for this renderable object. |
void |
setFanCount(int[] counts,
int num)
Set the number of valid fans to use. |
Methods inherited from class org.j3d.aviatrix3d.Geometry |
addParent, boundsChanged, getBounds, getPickMask, hasTransparency, markBoundsDirty, pickBatch, pickSingle, removeParent, setBounds, setPickMask |
Methods inherited from class org.j3d.aviatrix3d.NodeComponent |
addParent, getParents, hasChanged, numParents, removeParent |
Methods inherited from class org.j3d.aviatrix3d.SceneGraphObject |
checkForCyclicChild, checkForCyclicParent, dataChanged, getUserData, isLive, setUpdateHandler, setUserData |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public TriangleFanArray()
Method Detail |
public void render(net.java.games.jogl.GL gl, net.java.games.jogl.GLU glu)
gl
- The gl context to draw withglu
- The utility context to draw withpublic void postRender(net.java.games.jogl.GL gl, net.java.games.jogl.GLU glu)
gl
- The gl context to draw withglu
- The utility context to draw withprotected boolean isVisible()
isVisible
in class VertexGeometry
public boolean pickLineSegment(float[] start, float[] end, boolean findAny, float[] dataOut, int dataOutFlags) throws NotPickableException
pickLineSegment
in class Geometry
start
- The start point of the segmentend
- The end point of the segmentfindAny
- True if it only has to find a single intersection and can
exit as soon as it finds the first intersection. False if it must find
the closest polygondataOut
- An array to put the data in for the intersection. Exact
format is described by the flagsdataOutFlags
- A set of derived-class specific flags describing what
data should be included in the output array
NotPickableException
- This object has been marked as non pickable,
but you decided to try to call the method anywaypublic boolean pickLineRay(float[] origin, float[] direction, boolean findAny, float[] dataOut, int dataOutFlags) throws NotPickableException
pickLineRay
in class Geometry
origin
- The start point of the raydirection
- The direction vector of the rayfindAny
- True if it only has to find a single intersection and can
exit as soon as it finds the first intersection. False if it must find
the closest polygondataOut
- An array to put the data in for the intersection. Exact
format is described by the flagsdataOutFlags
- A set of derived-class specific flags describing what
data should be included in the output array
NotPickableException
- This object has been marked as non pickable,
but you decided to try to call the method anywaypublic void setFanCount(int[] counts, int num) throws InvalidWriteTimingException
counts
- The array of countsnum
- The number of valid items to read from the array
java.lang.IllegalArgumentException
- Invalid total fan count or
individual fan count < 3
InvalidWriteTimingException
- An attempt was made to write outside
of the NodeUpdateListener callback methodpublic int getValidFanCount()
public void getFanCount(int[] values)
values
- An array to copy the strip values into
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