Package com.sun.j3d.utils.geometry
Class Primitive
- java.lang.Object
-
- javax.media.j3d.SceneGraphObject
-
- javax.media.j3d.Node
-
- javax.media.j3d.Group
-
- com.sun.j3d.utils.geometry.Primitive
-
public abstract class Primitive extends Group
Base class for all Java 3D primitives. By default all primitives with the same parameters share their geometry (e.g., you can have 50 shperes in your scene, but the geometry is stored only once). A change to one primitive will effect all shared nodes. Another implication of this implementation is that the capabilities of the geometry are shared, and once one of the shared nodes is live, the capabilities cannot be set. Use the GEOMETRY_NOT_SHARED flag if you do not wish to share geometry among primitives with the same parameters.
-
-
Field Summary
Fields Modifier and Type Field Description static int
ENABLE_APPEARANCE_MODIFY
Specifies that the ALLOW_APPEARANCE_READ and ALLOW_APPEARANCE_WRITE bits are to be set on the generated geometry's Shape3D nodes.static int
ENABLE_GEOMETRY_PICKING
Specifies that the ALLOW_INTERSECT capability bit should be set on the generated geometry.static int
GENERATE_NORMALS
Specifies that normals are generated along with the positions.static int
GENERATE_NORMALS_INWARD
Specifies that normals are to be flipped along the surface.static int
GENERATE_TEXTURE_COORDS
Specifies that texture coordinates are generated along with the positions.static int
GENERATE_TEXTURE_COORDS_Y_UP
Specifies that texture coordinates are to be Y up.static int
GEOMETRY_NOT_SHARED
Specifies that the geometry being created will not be shared by another scene graph node.-
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
Constructors Constructor Description Primitive()
Constructs a default primitive.
-
Method Summary
All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Deprecated Methods Modifier and Type Method Description protected void
cacheGeometry(int kind, float a, float b, float c, int d, int e, int flags, com.sun.j3d.utils.geometry.GeomBuffer geo)
static void
clearGeometryCache()
Clear the shared geometry cache for all Primitive types.Appearance
getAppearance()
Gets the appearance of the primitive (defaults to first subpart).abstract Appearance
getAppearance(int partId)
Gets the appearance of the specified part of the primitive.protected com.sun.j3d.utils.geometry.GeomBuffer
getCachedGeometry(int kind, float a, float b, float c, int d, int e, int flags)
int
getNumTriangles()
Returns the total number of triangles in this primitive.int
getNumVertices()
Returns the total number of vertices in this primitive.int
getPrimitiveFlags()
Returns the flags of primitive (generate normal, textures, caching, etc).abstract Shape3D
getShape(int partid)
Obtains a shape node of a subpart of the primitive.void
setAppearance()
Sets the main appearance of the primitive (all subparts) to a default white appearance.void
setAppearance(int partid, Appearance ap)
Sets the appearance of a subpart given a partid.abstract void
setAppearance(Appearance ap)
Sets the main appearance of the primitive (all subparts) to same appearance.void
setNumTriangles(int num)
Deprecated.The number of triangles is an immutable attribute.void
setNumVertices(int num)
Deprecated.The number of vertices is an immutable attribute.void
setPrimitiveFlags(int fl)
Deprecated.The primitive flags must be set at construction time via one of the subclass constructors.-
Methods inherited from class javax.media.j3d.Group
addChild, cloneNode, 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
-
-
-
-
Field Detail
-
GENERATE_NORMALS
public static final int GENERATE_NORMALS
Specifies that normals are generated along with the positions.- See Also:
- Constant Field Values
-
GENERATE_TEXTURE_COORDS
public static final int GENERATE_TEXTURE_COORDS
Specifies that texture coordinates are generated along with the positions.- See Also:
- Constant Field Values
-
GENERATE_NORMALS_INWARD
public static final int GENERATE_NORMALS_INWARD
Specifies that normals are to be flipped along the surface.- See Also:
- Constant Field Values
-
GENERATE_TEXTURE_COORDS_Y_UP
public static final int GENERATE_TEXTURE_COORDS_Y_UP
Specifies that texture coordinates are to be Y up.- Since:
- Java 3D 1.5.1
- See Also:
- Constant Field Values
-
GEOMETRY_NOT_SHARED
public static final int GEOMETRY_NOT_SHARED
Specifies that the geometry being created will not be shared by another scene graph node. By default all primitives created with the same parameters share their geometry (e.g., you can have 50 spheres in your scene, but the geometry is stored only once). A change to one primitive will effect all shared nodes. You specify this flag if you do not wish to share any geometry among primitives of the same parameters.- See Also:
- Constant Field Values
-
ENABLE_GEOMETRY_PICKING
public static final int ENABLE_GEOMETRY_PICKING
Specifies that the ALLOW_INTERSECT capability bit should be set on the generated geometry. This allows the object to be picked using Geometry based picking.- See Also:
- Constant Field Values
-
ENABLE_APPEARANCE_MODIFY
public static final int ENABLE_APPEARANCE_MODIFY
Specifies that the ALLOW_APPEARANCE_READ and ALLOW_APPEARANCE_WRITE bits are to be set on the generated geometry's Shape3D nodes.- See Also:
- Constant Field Values
-
-
Method Detail
-
getNumTriangles
public int getNumTriangles()
Returns the total number of triangles in this primitive.- Returns:
- the total number of triangles in this primitive
-
setNumTriangles
public void setNumTriangles(int num)
Deprecated.The number of triangles is an immutable attribute.
-
getNumVertices
public int getNumVertices()
Returns the total number of vertices in this primitive.- Returns:
- the total number of vertices in this primitive
-
setNumVertices
public void setNumVertices(int num)
Deprecated.The number of vertices is an immutable attribute.
-
getPrimitiveFlags
public int getPrimitiveFlags()
Returns the flags of primitive (generate normal, textures, caching, etc).
-
setPrimitiveFlags
public void setPrimitiveFlags(int fl)
Deprecated.The primitive flags must be set at construction time via one of the subclass constructors.
-
getShape
public abstract Shape3D getShape(int partid)
Obtains a shape node of a subpart of the primitive.- Parameters:
partid
- identifier for a given subpart of the primitive.
-
getAppearance
public Appearance getAppearance()
Gets the appearance of the primitive (defaults to first subpart).
-
getAppearance
public abstract Appearance getAppearance(int partId)
Gets the appearance of the specified part of the primitive.- Parameters:
partId
- identifier for a given subpart of the primitive- Returns:
- The appearance object associated with the partID. If an invalid partId is passed in, null is returned.
- Since:
- Java 3D 1.2.1
-
setAppearance
public void setAppearance(int partid, Appearance ap)
Sets the appearance of a subpart given a partid.
-
setAppearance
public abstract void setAppearance(Appearance ap)
Sets the main appearance of the primitive (all subparts) to same appearance.
-
setAppearance
public void setAppearance()
Sets the main appearance of the primitive (all subparts) to a default white appearance.
-
cacheGeometry
protected void cacheGeometry(int kind, float a, float b, float c, int d, int e, int flags, com.sun.j3d.utils.geometry.GeomBuffer geo)
-
getCachedGeometry
protected com.sun.j3d.utils.geometry.GeomBuffer getCachedGeometry(int kind, float a, float b, float c, int d, int e, int flags)
-
clearGeometryCache
public static void clearGeometryCache()
Clear the shared geometry cache for all Primitive types. Existing Shapes with shared geometry will continue to share the geometry. New Primitives will create new shared geometry.- Since:
- Java 3D 1.3.2
-
-