org.jcae.viewer3d.fd
Class PL02BranchGroup

java.lang.Object
  javax.media.j3d.SceneGraphObject
      javax.media.j3d.Node
          javax.media.j3d.Group
              javax.media.j3d.BranchGroup
                  org.jcae.viewer3d.fd.PL02BranchGroup

public class PL02BranchGroup
extends javax.media.j3d.BranchGroup

Nested Class Summary

class	PL02BranchGroup.BehindShape Class named like this because the quads will always show behind the edges
protected static class	PL02BranchGroup.EdgeLine Each EdgeLine object reports all edges along a particular infinite line This line is parallel to one of the axis, thus defined by: - Its direction: X, Y, or Z - The constant values in the other 2 directions Ex: X line defined by Y=5, Z=2 The values for the constants are indices in the grid array, thus integers Alongside each line, a certain number of edges can be defined.
protected static class	PL02BranchGroup.NioLineArray Overloads the quad array and implements ref to double translation for Picking
protected static class	PL02BranchGroup.NioQuadArray Overloads the quad array and implements ref to double translation for Picking
protected class	PL02BranchGroup.SelectionEdge
protected class	PL02BranchGroup.SelectionQuad

Field Summary

protected java.util.ArrayList<javax.media.j3d.Shape3D>	allEdgeShapes
protected java.util.ArrayList<PL02BranchGroup.SelectionEdge>	edgeSelection
protected javax.media.j3d.Shape3D	edgeSelectionShape
protected static int	PICK_EDGES
protected static int	PICK_FACES
protected static int	PICK_VERTICES
protected int	pickType
protected FDProvider	provider
protected java.util.ArrayList<PL02BranchGroup.SelectionQuad>	selection
protected javax.media.j3d.Shape3D	selectionShape

Fields inherited from class javax.media.j3d.BranchGroup

ALLOW_DETACH

Fields inherited from class javax.media.j3d.Group

ALLOW_CHILDREN_EXTEND, ALLOW_CHILDREN_READ, ALLOW_CHILDREN_WRITE, ALLOW_COLLISION_BOUNDS_READ, ALLOW_COLLISION_BOUNDS_WRITE

Fields inherited from class javax.media.j3d.Node

ALLOW_AUTO_COMPUTE_BOUNDS_READ, ALLOW_AUTO_COMPUTE_BOUNDS_WRITE, ALLOW_BOUNDS_READ, ALLOW_BOUNDS_WRITE, ALLOW_COLLIDABLE_READ, ALLOW_COLLIDABLE_WRITE, ALLOW_LOCAL_TO_VWORLD_READ, ALLOW_LOCALE_READ, ALLOW_PARENT_READ, ALLOW_PICKABLE_READ, ALLOW_PICKABLE_WRITE, ENABLE_COLLISION_REPORTING, ENABLE_PICK_REPORTING

Constructor Summary

PL02BranchGroup(FDProvider provider)

Method Summary

protected void	addEdge(java.util.HashMap<PL02BranchGroup.EdgeLine,PL02BranchGroup.EdgeLine> edges, PL02BranchGroup.EdgeLine line, int i, int j) Adds a new edge to a line, merging with other edges on this line if necessary
float[]	getColorForOrder(int order, int what) returns a color for a group/order and for a state
protected int[]	getGridCoordinate(float[] pt)
protected PL02BranchGroup.EdgeLine	getLine(Plate p, int dirnum, int idx) Gets the EdgeLine object corresponding to a plate edge
void	highlight(boolean on, java.lang.Object parameter) Handles highlighting for edges
protected void	makeGroups()
protected void	makeWires()
protected void	toggleSelectedEdge(boolean on, PL02BranchGroup.SelectionEdge se) Simple algorithm to add or remove an edge from the selection Ideas: 1.
protected void	toggleSelectedQuad(boolean on, PL02BranchGroup.SelectionQuad sq) Simple algorithm to add or remove a quad from the selection Ideas: 1.
void	update()

Methods inherited from class javax.media.j3d.BranchGroup

cloneNode, compile, detach, pickAll, pickAll, pickAllSorted, pickAllSorted, pickAny, pickAny, pickClosest, pickClosest

Methods inherited from class javax.media.j3d.Group

addChild, getAllChildren, getAlternateCollisionTarget, getChild, getCollisionBounds, indexOfChild, insertChild, moveTo, numChildren, removeAllChildren, removeChild, removeChild, setAlternateCollisionTarget, setChild, setCollisionBounds

Methods inherited from class javax.media.j3d.Node

cloneTree, cloneTree, cloneTree, cloneTree, cloneTree, cloneTree, duplicateNode, getBounds, getBoundsAutoCompute, getCollidable, getLocale, getLocalToVworld, getLocalToVworld, getParent, getPickable, setBounds, setBoundsAutoCompute, setCollidable, setPickable

Methods inherited from class javax.media.j3d.SceneGraphObject

clearCapability, clearCapabilityIsFrequent, duplicateSceneGraphObject, getCapability, getCapabilityIsFrequent, getName, getUserData, isCompiled, isLive, setCapability, setCapabilityIsFrequent, setName, setUserData, toString, updateNodeReferences

Methods inherited from class java.lang.Object

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

Field Detail

provider

protected FDProvider provider

allEdgeShapes

protected java.util.ArrayList<javax.media.j3d.Shape3D> allEdgeShapes

PICK_FACES

protected static final int PICK_FACES

See Also:

Constant Field Values

PICK_EDGES

protected static final int PICK_EDGES

See Also:

Constant Field Values

PICK_VERTICES

protected static final int PICK_VERTICES

See Also:

Constant Field Values

pickType

protected int pickType

selection

protected java.util.ArrayList<PL02BranchGroup.SelectionQuad> selection

edgeSelection

protected java.util.ArrayList<PL02BranchGroup.SelectionEdge> edgeSelection

selectionShape

protected javax.media.j3d.Shape3D selectionShape

edgeSelectionShape

protected javax.media.j3d.Shape3D edgeSelectionShape

Constructor Detail

PL02BranchGroup

public PL02BranchGroup(FDProvider provider)

Method Detail

update

public void update()

makeGroups

protected void makeGroups()

addEdge

protected void addEdge(java.util.HashMap<PL02BranchGroup.EdgeLine,PL02BranchGroup.EdgeLine> edges,
                       PL02BranchGroup.EdgeLine line,
                       int i,
                       int j)

Adds a new edge to a line, merging with other edges on this line if necessary

Parameters:

edges - : An EdgeLine map

a - line for this map, may already exist or not

i - first grid index for the nex edge on this line

j - second grid index for the nex edge on this line

getLine

protected PL02BranchGroup.EdgeLine getLine(Plate p,
                                           int dirnum,
                                           int idx)

Gets the EdgeLine object corresponding to a plate edge

Parameters:

p - : the plate for which an edge is wanted

dirnum - : the direction 1 or 2 of the plate

the - index in the other direction of the plate (p.min? and p.max? for the external edges)

Returns:

an EdgeLine with these characteristics

getColorForOrder

public float[] getColorForOrder(int order,
                                int what)

returns a color for a group/order and for a state

Parameters:

order - A color order number. This determines the base color (hue).
-2 => Wire
else group index

what - The goal for this color.
0 = unselected face.
1 = selected face.
2 = unselected internal edge
3 = selected internal edge
4 = unselected external edge
5 = selected external edge
6 = selected quad

toggleSelectedQuad

protected void toggleSelectedQuad(boolean on,
                                  PL02BranchGroup.SelectionQuad sq)

Simple algorithm to add or remove a quad from the selection Ideas: 1. Use one shape per quad => easy, but can become very fast too big to fit in memory. => pb: flicker when adding / removing because the scene is detached 2. Use only one shape, modify geometry TODO: pre-create an empty shape to avoid initial flicker

Parameters:

on -

p -

u -

v -

groupIdx2 -

toggleSelectedEdge

protected void toggleSelectedEdge(boolean on,
                                  PL02BranchGroup.SelectionEdge se)

Simple algorithm to add or remove an edge from the selection Ideas: 1. Use one shape per quad => easy, but can become very fast too big to fit in memory. => pb: flicker when adding / removing because the scene is detached 2. Use only one shape, modify geometry TODO: pre-create an empty shape to avoid initial flicker

Parameters:

on -

p -

u -

v -

groupIdx2 -

highlight

public void highlight(boolean on,
                      java.lang.Object parameter)

Handles highlighting for edges

getGridCoordinate

protected int[] getGridCoordinate(float[] pt)

Parameters:

pt -

Returns:

the grid coordinates for a given point

makeWires

protected void makeWires()