A base class for things that may be directly added into the egg hierarchy. More...
#include "eggNode.h"
Public Member Functions | |
| EggNode (const std::string &name="") | |
| EggNode (const EggNode ©) | |
| void | apply_texmats () |
| Applies the texture matrices to the UV's of the vertices that reference them, and then removes the texture matrices from the textures themselves. More... | |
| virtual EggRenderMode * | determine_alpha_mode () |
| Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has an alpha_mode other than AM_unspecified. More... | |
| virtual EggRenderMode * | determine_bin () |
| Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a bin specified. More... | |
| virtual bool | determine_decal () |
| Walks back up the hierarchy, looking for an EggGroup at this level or above that has the "decal" flag set. More... | |
| virtual EggRenderMode * | determine_depth_offset () |
| Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a depth_offset specified. More... | |
| virtual EggRenderMode * | determine_depth_test_mode () |
| Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a depth_test_mode other than DTM_unspecified. More... | |
| virtual EggRenderMode * | determine_depth_write_mode () |
| Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a depth_write_mode other than DWM_unspecified. More... | |
| virtual EggRenderMode * | determine_draw_order () |
| Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a draw_order specified. More... | |
| virtual bool | determine_indexed () |
| Walks back up the hierarchy, looking for an EggGroup at this level or above that has the "indexed" scalar set. More... | |
| virtual EggRenderMode * | determine_visibility_mode () |
| Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a visibility_mode other than VM_unspecified. More... | |
| void | flatten_transforms () |
| Removes any transform and instance records from this node in the scene graph and below. More... | |
| virtual TypeHandle | force_init_type () |
| int | get_depth () const |
| const LMatrix4d & | get_node_frame () const |
| Returns the coordinate frame of the node itself. More... | |
| const LMatrix4d & | get_node_frame_inv () const |
| Returns the inverse of the matrix returned by get_node_frame(). More... | |
| const LMatrix4d * | get_node_frame_inv_ptr () const |
| Returns either a NULL pointer or a unique pointer shared by nodes with the same get_node_frame_inv() matrix. More... | |
| const LMatrix4d * | get_node_frame_ptr () const |
| Returns either a NULL pointer or a unique pointer shared by nodes with the same get_node_frame() matrix. More... | |
| const LMatrix4d & | get_node_to_vertex () const |
| Returns the transformation matrix suitable for converting vertices in the coordinate space of the node to the appropriate coordinate space for storing in the egg file. More... | |
| const LMatrix4d * | get_node_to_vertex_ptr () const |
| Returns either a NULL pointer or a unique pointer shared by nodes with the same get_node_to_vertex() matrix. More... | |
| EggGroupNode * | get_parent () const |
| virtual TypeHandle | get_type () const |
| const LMatrix4d & | get_vertex_frame () const |
| Returns the coordinate frame of the vertices referenced by primitives at or under this node. More... | |
| const LMatrix4d & | get_vertex_frame_inv () const |
| Returns the inverse of the matrix returned by get_vertex_frame(). More... | |
| const LMatrix4d * | get_vertex_frame_inv_ptr () const |
| Returns either a NULL pointer or a unique pointer shared by nodes with the same get_vertex_frame_inv() matrix. More... | |
| const LMatrix4d * | get_vertex_frame_ptr () const |
| Returns either a NULL pointer or a unique pointer shared by nodes with the same get_vertex_frame() matrix. More... | |
| const LMatrix4d & | get_vertex_to_node () const |
| Returns the transformation matrix suitable for converting the vertices as read from the egg file into the coordinate space of the node. More... | |
| const LMatrix4d * | get_vertex_to_node_ptr () const |
| Returns either a NULL pointer or a unique pointer shared by nodes with the same get_vertex_to_node() matrix. More... | |
| virtual bool | is_anim_matrix () const |
| Returns true if this node represents a table of animation transformation data, false otherwise. More... | |
| virtual bool | is_joint () const |
| Returns true if this particular node represents a <Joint> entry or not. More... | |
| bool | is_local_coord () const |
| Returns true if this node's vertices are not in the global coordinate space. More... | |
| bool | is_under_instance () const |
| Returns true if there is an <Instance> node somewhere in the egg tree at or above this node, false otherwise. More... | |
| bool | is_under_transform () const |
| Returns true if there is a <Transform> entry somewhere in the egg tree at or above this node, false otherwise. More... | |
| EggNode & | operator= (const EggNode ©) |
| bool | parse_egg (const std::string &egg_syntax) |
| Parses the egg syntax given in the indicate string as if it had been read from the egg file within this object's definition. More... | |
| int | rename_node (vector_string strip_prefix) |
| Rename by stripping out the prefix. More... | |
| void | test_under_integrity () const |
| void | transform (const LMatrix4d &mat) |
| Applies the indicated transformation to the node and all of its descendants. More... | |
| void | transform_vertices_only (const LMatrix4d &mat) |
| Applies the indicated transformation only to vertices that appear in global space within vertex pools at this node and below. More... | |
| virtual void | write (std::ostream &out, int indent_level) const =0 |
 Public Member Functions inherited from EggNamedObject | |
| EggNamedObject (const std::string &name="") | |
| EggNamedObject (const EggNamedObject ©) | |
| EggNamedObject & | operator= (const EggNamedObject ©) |
| void | output (std::ostream &out) const |
| void | write_header (std::ostream &out, int indent_level, const char *egg_keyword) const |
| Writes the first line of the egg object, e.g. More... | |
| Public Member Functions inherited from EggObject | |
| EggObject (const EggObject ©) | |
| virtual EggTransform * | as_transform () |
| Returns this object cross-cast to an EggTransform pointer, if it inherits from EggTransform, or NULL if it does not. More... | |
| void | clear_user_data () |
| Removes *all* user data pointers from the node. More... | |
| void | clear_user_data (TypeHandle type) |
| Removes the user data pointer of the indicated type. More... | |
| EggUserData * | get_user_data () const |
| Returns the user data pointer most recently stored on this object, or NULL if nothing was previously stored. More... | |
| EggUserData * | get_user_data (TypeHandle type) const |
| Returns the user data pointer of the indicated type, if it exists, or NULL if it does not. More... | |
| bool | has_user_data () const |
| Returns true if a generic user data pointer has recently been set and not yet cleared, false otherwise. More... | |
| bool | has_user_data (TypeHandle type) const |
| Returns true if the user data pointer of the indicated type has been set, false otherwise. More... | |
| EggObject & | operator= (const EggObject ©) |
| void | set_user_data (EggUserData *user_data) |
| Sets the user data associated with this object. More... | |
| Public Member Functions inherited from TypedReferenceCount | |
| TypedReferenceCount (const TypedReferenceCount ©) | |
| void | operator= (const TypedReferenceCount ©) |
| Public Member Functions inherited from TypedObject | |
| TypedObject (const TypedObject ©)=default | |
| TypedObject * | as_typed_object () |
| Returns the object, upcast (if necessary) to a TypedObject pointer. More... | |
| const TypedObject * | as_typed_object () const |
| Returns the object, upcast (if necessary) to a TypedObject pointer. More... | |
| int | get_best_parent_from_Set (const std::set< int > &) const |
| int | get_type_index () const |
| Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More... | |
| bool | is_exact_type (TypeHandle handle) const |
| Returns true if the current object is the indicated type exactly. More... | |
| bool | is_of_type (TypeHandle handle) const |
| Returns true if the current object is or derives from the indicated type. More... | |
| TypedObject & | operator= (const TypedObject ©)=default |
| Public Member Functions inherited from ReferenceCount | |
| int | get_ref_count () const |
| WeakReferenceList * | get_weak_list () const |
| Returns the WeakReferenceList associated with this ReferenceCount object. More... | |
| bool | has_weak_list () const |
| Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise. More... | |
| void | local_object () |
| This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack. More... | |
| void | ref () const |
| Explicitly increments the reference count. More... | |
| bool | ref_if_nonzero () const |
| Atomically increases the reference count of this object if it is not zero. More... | |
| bool | test_ref_count_integrity () const |
| Does some easy checks to make sure that the reference count isn't completely bogus. More... | |
| bool | test_ref_count_nonzero () const |
| Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More... | |
| virtual bool | unref () const |
| Explicitly decrements the reference count. More... | |
| WeakReferenceList * | weak_ref () |
| Adds the indicated PointerToVoid as a weak reference to this object. More... | |
| void | weak_unref () |
| Removes the indicated PointerToVoid as a weak reference to this object. More... | |
| Public Member Functions inherited from Namable | |
| Namable (const std::string &initial_name="") | |
| void | clear_name () |
| Resets the Namable's name to empty. More... | |
| const std::string & | get_name () const |
| bool | has_name () const |
| Returns true if the Namable has a nonempty name set, false if the name is empty. More... | |
| void | output (std::ostream &out) const |
| Outputs the Namable. More... | |
| void | set_name (const std::string &name) |
Static Public Member Functions | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| Static Public Member Functions inherited from EggNamedObject | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| Static Public Member Functions inherited from EggObject | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| Static Public Member Functions inherited from TypedReferenceCount | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| Static Public Member Functions inherited from TypedObject | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| This function is declared non-inline to work around a compiler bug in g++ 2.96. More... | |
| Static Public Member Functions inherited from ReferenceCount | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| Static Public Member Functions inherited from Namable | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
Public Attributes | |
| get_depth | |
| Returns the number of nodes above this node in the egg hierarchy. More... | |
| get_parent | |
| Public Attributes inherited from TypedObject | |
| get_type | |
| Public Attributes inherited from ReferenceCount | |
| get_ref_count | |
| Returns the current reference count. More... | |
| Public Attributes inherited from Namable | |
| get_name | |
| set_name | |
Friends | |
| class | EggGroupNode |
| class | EggTable |
Detailed Description
A base class for things that may be directly added into the egg hierarchy.
This includes groups, joints, polygons, vertex pools, etc., but does not include things like vertices.
Member Function Documentation
◆ apply_texmats()
| void EggNode::apply_texmats | ( | ) |
Applies the texture matrices to the UV's of the vertices that reference them, and then removes the texture matrices from the textures themselves.
Definition at line 53 of file eggNode.cxx.
References EggTextureCollection::find_used_textures().
◆ determine_alpha_mode()
|
virtual |
Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has an alpha_mode other than AM_unspecified.
Returns a valid EggRenderMode pointer if one is found, or NULL otherwise.
Reimplemented in EggGroup, and EggPrimitive.
Definition at line 85 of file eggNode.cxx.
References determine_alpha_mode().
Referenced by determine_alpha_mode(), EggPrimitive::determine_alpha_mode(), and EggGroup::determine_alpha_mode().
◆ determine_bin()
|
virtual |
Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a bin specified.
Returns a valid EggRenderMode pointer if one is found, or NULL otherwise.
Reimplemented in EggGroup, and EggPrimitive.
Definition at line 174 of file eggNode.cxx.
References determine_bin().
Referenced by determine_bin(), EggPrimitive::determine_bin(), and EggGroup::determine_bin().
◆ determine_decal()
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virtual |
Walks back up the hierarchy, looking for an EggGroup at this level or above that has the "decal" flag set.
Returns the value of the decal flag if it is found, or false if it is not.
In other words, returns true if the "decal" flag is in effect for the indicated node, false otherwise.
Reimplemented in EggGroup.
Definition at line 208 of file eggNode.cxx.
References determine_decal().
Referenced by determine_decal(), and EggGroup::determine_decal().
◆ determine_depth_offset()
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virtual |
Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a depth_offset specified.
Returns a valid EggRenderMode pointer if one is found, or NULL otherwise.
Reimplemented in EggGroup, and EggPrimitive.
Definition at line 145 of file eggNode.cxx.
References determine_depth_offset().
Referenced by determine_depth_offset(), EggPrimitive::determine_depth_offset(), and EggGroup::determine_depth_offset().
◆ determine_depth_test_mode()
|
virtual |
Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a depth_test_mode other than DTM_unspecified.
Returns a valid EggRenderMode pointer if one is found, or NULL otherwise.
Reimplemented in EggGroup, and EggPrimitive.
Definition at line 115 of file eggNode.cxx.
References determine_depth_test_mode().
Referenced by determine_depth_test_mode(), EggPrimitive::determine_depth_test_mode(), and EggGroup::determine_depth_test_mode().
◆ determine_depth_write_mode()
|
virtual |
Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a depth_write_mode other than DWM_unspecified.
Returns a valid EggRenderMode pointer if one is found, or NULL otherwise.
Reimplemented in EggGroup, and EggPrimitive.
Definition at line 100 of file eggNode.cxx.
References determine_depth_write_mode().
Referenced by determine_depth_write_mode(), EggPrimitive::determine_depth_write_mode(), and EggGroup::determine_depth_write_mode().
◆ determine_draw_order()
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virtual |
Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a draw_order specified.
Returns a valid EggRenderMode pointer if one is found, or NULL otherwise.
Reimplemented in EggGroup, and EggPrimitive.
Definition at line 160 of file eggNode.cxx.
References determine_draw_order().
Referenced by determine_draw_order(), EggPrimitive::determine_draw_order(), and EggGroup::determine_draw_order().
◆ determine_indexed()
|
virtual |
Walks back up the hierarchy, looking for an EggGroup at this level or above that has the "indexed" scalar set.
Returns the value of the indexed scalar if it is found, or false if it is not.
In other words, returns true if the "indexed" flag is in effect for the indicated node, false otherwise.
Reimplemented in EggGroup.
Definition at line 191 of file eggNode.cxx.
References determine_indexed().
Referenced by determine_indexed(), and EggGroup::determine_indexed().
◆ determine_visibility_mode()
|
virtual |
Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a visibility_mode other than VM_unspecified.
Returns a valid EggRenderMode pointer if one is found, or NULL otherwise.
Reimplemented in EggGroup, and EggPrimitive.
Definition at line 130 of file eggNode.cxx.
References determine_visibility_mode().
Referenced by determine_visibility_mode(), EggPrimitive::determine_visibility_mode(), and EggGroup::determine_visibility_mode().
◆ flatten_transforms()
|
inline |
Removes any transform and instance records from this node in the scene graph and below.
If an instance node is encountered, removes the instance and applies the transform to its vertices, duplicating vertices if necessary.
Since this function may result in duplicated vertices, it may be a good idea to call remove_unused_vertices() after calling this.
◆ get_node_frame()
|
inline |
◆ get_node_frame_inv()
|
inline |
Returns the inverse of the matrix returned by get_node_frame().
See get_node_frame().
◆ get_node_frame_inv_ptr()
|
inline |
Returns either a NULL pointer or a unique pointer shared by nodes with the same get_node_frame_inv() matrix.
◆ get_node_frame_ptr()
|
inline |
Returns either a NULL pointer or a unique pointer shared by nodes with the same get_node_frame() matrix.
◆ get_node_to_vertex()
|
inline |
Returns the transformation matrix suitable for converting vertices in the coordinate space of the node to the appropriate coordinate space for storing in the egg file.
This is the same thing as:
◆ get_node_to_vertex_ptr()
|
inline |
Returns either a NULL pointer or a unique pointer shared by nodes with the same get_node_to_vertex() matrix.
◆ get_vertex_frame()
|
inline |
Returns the coordinate frame of the vertices referenced by primitives at or under this node.
This is not the same as get_node_frame().
Generally, vertices in an egg file are stored in the global coordinate space, regardless of the transforms defined at each node. Thus, get_vertex_frame() will usually return the identity transform (global coordinate space). However, primitives under an <Instance> entry reference their vertices in the coordinate system under effect at the time of the <Instance>. Thus, nodes under an <Instance> entry may return this non- identity matrix.
Specifically, this may return a non-identity matrix only if is_local_coord() is true.
◆ get_vertex_frame_inv()
|
inline |
Returns the inverse of the matrix returned by get_vertex_frame().
See get_vertex_frame().
◆ get_vertex_frame_inv_ptr()
|
inline |
Returns either a NULL pointer or a unique pointer shared by nodes with the same get_vertex_frame_inv() matrix.
◆ get_vertex_frame_ptr()
|
inline |
Returns either a NULL pointer or a unique pointer shared by nodes with the same get_vertex_frame() matrix.
◆ get_vertex_to_node()
|
inline |
Returns the transformation matrix suitable for converting the vertices as read from the egg file into the coordinate space of the node.
This is the same thing as:
◆ get_vertex_to_node_ptr()
|
inline |
Returns either a NULL pointer or a unique pointer shared by nodes with the same get_vertex_to_node() matrix.
◆ is_anim_matrix()
|
virtual |
Returns true if this node represents a table of animation transformation data, false otherwise.
Reimplemented in EggXfmSAnim, and EggXfmAnimData.
Definition at line 74 of file eggNode.cxx.
Referenced by EggTable::has_transform().
◆ is_joint()
|
virtual |
Returns true if this particular node represents a <Joint> entry or not.
This is a handy thing to know since Joints are sorted to the end of their sibling list when writing an egg file. See EggGroupNode::write().
Reimplemented in EggGroup.
Definition at line 65 of file eggNode.cxx.
Referenced by EggGroupNode::joint_has_primitives().
◆ is_local_coord()
|
inline |
Returns true if this node's vertices are not in the global coordinate space.
This will be the case if there was an <Instance> node under a transform at or above this node.
Definition at line 87 of file eggNode.I.
Referenced by EggVertex::get_num_global_coord(), and EggVertex::get_num_local_coord().
◆ is_under_instance()
|
inline |
◆ is_under_transform()
|
inline |
◆ parse_egg()
| bool EggNode::parse_egg | ( | const std::string & | egg_syntax | ) |
Parses the egg syntax given in the indicate string as if it had been read from the egg file within this object's definition.
Updates the object accordingly. Returns true if successful, false if there was some parse error or if the object does not support this functionality.
Definition at line 224 of file eggNode.cxx.
References TypedObject::is_of_type().
◆ rename_node()
| int EggNode::rename_node | ( | vector_string | strip_prefix | ) |
Rename by stripping out the prefix.
Definition at line 34 of file eggNode.cxx.
◆ transform()
|
inline |
◆ transform_vertices_only()
|
inline |
Member Data Documentation
◆ get_depth
|
inline |
The documentation for this class was generated from the following files:
- panda/src/egg/eggNode.h
- panda/src/egg/eggNode.cxx
- panda/src/egg/eggNode.I
