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EggTable Class Reference

This corresponds to a. More...

#include <eggTable.h>

Inheritance diagram for EggTable:

EggGroupNode EggNode EggNamedObject EggObject Namable TypedReferenceCount TypedObject ReferenceCount List of all members.

Public Types

enum  TableType { TT_invalid, TT_table, TT_bundle }
typedef Children::const_pointer pointer
typedef Children::const_pointer const_pointer
typedef Children::const_reference reference
typedef Children::const_reference const_reference
typedef Children::const_iterator iterator
typedef Children::const_iterator const_iterator
typedef Children::const_reverse_iterator reverse_iterator
typedef Children::const_reverse_iterator const_reverse_iterator
typedef Children::size_type size_type
typedef Children::difference_type difference_type

Public Member Functions

 EggTable (const string &name="")
 EggTable (const EggTable &copy)
EggTable & operator= (const EggTable &copy)
void set_table_type (TableType type)
TableType get_table_type () const
virtual void write (ostream &out, int indent_level) const
 Writes the table and all of its children to the indicated output stream in Egg format.

virtual TypeHandle get_type () const
virtual TypeHandle force_init_type ()
iterator begin () const
iterator end () const
reverse_iterator rbegin () const
reverse_iterator rend () const
bool empty () const
size_type size () const
iterator insert (iterator position, PointerTo< EggNode > x)
iterator erase (iterator position)
iterator erase (iterator first, iterator last)
void replace (iterator position, PointerTo< EggNode > x)
 Replaces the node at the indicated position with the indicated node.

void clear ()
PointerTo< EggNode > add_child (PointerTo< EggNode > node)
 Adds the indicated child to the group and returns it.

PointerTo< EggNode > remove_child (PointerTo< EggNode > node)
 Removes the indicated child node from the group and returns it.

void steal_children (EggGroupNode &other)
 Moves all the children from the other node to this one.

void resolve_filenames (const DSearchPath &searchpath)
 Walks the tree and attempts to resolve any filenames encountered.

void reverse_vertex_ordering ()
 Reverses the vertex ordering of all polygons defined at this node and below.

void recompute_vertex_normals (double threshold, CoordinateSystem cs=CS_default)
 Recomputes all the vertex normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions.

void recompute_polygon_normals (CoordinateSystem cs=CS_default)
 Recomputes all the polygon normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions.

void strip_normals ()
 Removes all normals from primitives, and the vertices they reference, at this node and below.

int triangulate_polygons (bool convex_also)
 Replace all higher-order polygons at this point in the scene graph and below with triangles.

int remove_unused_vertices ()
 Removes all vertices from VertexPools within this group or below that are not referenced by at least one primitive.

int remove_invalid_primitives ()
 Removes primitives at this level and below which appear to be degenerate; e.g.

EggGroupNode * get_parent () const
int get_depth () const
 Returns the number of nodes above this node in the egg hierarchy.

bool is_under_instance () const
 Returns true if there is an node somewhere in the egg tree at or above this node, false otherwise.

bool is_under_transform () const
 Returns true if there is a entry somewhere in the egg tree at or above this node, false otherwise.

bool is_local_coord () const
 Returns true if this node's vertices are not in the global coordinate space.

const LMatrix4d & get_vertex_frame () const
 Returns the coordinate frame of the vertices referenced by primitives at or under this node.

const LMatrix4d & get_node_frame () const
 Returns the coordinate frame of the node itself.

const LMatrix4d & get_vertex_frame_inv () const
 Returns the inverse of the matrix returned by get_vertex_frame().

const LMatrix4d & get_node_frame_inv () const
 Returns the inverse of the matrix returned by get_node_frame().

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.

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.

void transform (const LMatrix4d &mat)
 Applies the indicated transformation to the node and all of its descendants.

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.

void flatten_transforms ()
 Removes any transform and instance records from this node in the scene graph and below.

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.

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.

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.

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.

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.

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.

bool parse_egg (const 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.

void test_under_integrity () const
 Recursively checks the integrity of the _under_flags, _parent, and _depth members of this node and all of its ancestors.

void write_header (ostream &out, int indent_level, const char *egg_keyword) const
 Writes the first line of the egg object, e.g.

int get_type_index () const
 Returns the internal index number associated with this object's TypeHandle, a unique number for each different type.

bool is_of_type (TypeHandle handle) const
 Returns true if the current object is or derives from the indicated type.

bool is_exact_type (TypeHandle handle) const
 Returns true if the current object is the indicated type exactly.

int get_ref_count () const
 Returns the current reference count.

int ref () const
 Explicitly increments the reference count.

int unref () const
 Explicitly decrements the reference count.

void test_ref_count_integrity () const
 Does some easy checks to make sure that the reference count isn't completely bogus.

void set_name (const string &name)
void clear_name ()
 Resets the Namable's name to empty.

bool has_name () const
 Returns true if the Namable has a nonempty name set, false if the name is empty.

const string & get_name () const
void output (ostream &out) const
 Outputs the Namable.


Static Public Member Functions

TableType string_table_type (const string &string)
 Returns the TableType value associated with the given string representation, or TT_invalid if the string does not match any known TableType value.

TypeHandle get_class_type ()
void init_type ()

Protected Types

typedef RefCountObj< LMatrix4d > MatrixFrame
enum  UnderFlags { UF_under_instance = 0x001, UF_under_transform = 0x002, UF_local_coord = 0x004 }

Protected Member Functions

virtual void update_under (int depth_offset)
 This function is called from within EggGroupNode whenever the parentage of the node has changed.

virtual void r_transform (const LMatrix4d &mat, const LMatrix4d &inv, CoordinateSystem to_cs)
 This is called from within the egg code by transform().

virtual void r_transform_vertices (const LMatrix4d &mat)
 This is called from within the egg code by transform_vertices_only()().

virtual void r_mark_coordsys (CoordinateSystem cs)
 This is only called immediately after loading an egg file from disk, to propagate the value found in the CoordinateSystem entry (or the default Y-up coordinate system) to all nodes that care about what the coordinate system is.

virtual void r_flatten_transforms ()
 The recursive implementation of flatten_transforms().

virtual void r_apply_texmats (EggTextureCollection &textures)
 The recursive implementation of apply_texmats().

CoordinateSystem find_coordsys_entry ()
 Walks the tree, looking for an EggCoordinateSystem entry.

int find_textures (EggTextureCollection *collection)
 Walks the tree, looking for EggTextures.

int find_materials (EggMaterialCollection *collection)
 Walks the tree, looking for EggMaterials.

bool r_load_externals (const DSearchPath &searchpath, CoordinateSystem coordsys)
 Walks the tree and locates unloaded external reference nodes, which it attempts to locate and load in.

virtual bool egg_start_parse_body ()
 This function is called within parse_egg().

virtual void adjust_under ()
 This is called within update_under() after all the various under settings have been inherited directly from the parent node.


Protected Attributes

EggGroupNode * _parent
int _depth
int _under_flags
PointerTo< MatrixFrame > _vertex_frame
PointerTo< MatrixFrame > _node_frame
PointerTo< MatrixFrame > _vertex_frame_inv
PointerTo< MatrixFrame > _node_frame_inv
PointerTo< MatrixFrame > _vertex_to_node
PointerTo< MatrixFrame > _node_to_vertex

Private Attributes

TableType _type

Static Private Attributes

TypeHandle _type_handle

Detailed Description

This corresponds to a.

a entry. As such, it doesn't actually contain a table of numbers, but it may be a parent to an EggSAnimData or an EggXfmAnimData, which do. It may also be a parent to another
, establishing a hierarchy of tables.

Definition at line 46 of file eggTable.h.

Member Typedef Documentation

typedef Children::const_iterator EggGroupNode::const_iterator [inherited]
 

Definition at line 104 of file eggGroupNode.h.

Referenced by CharacterMaker::build_joint_hierarchy(), AnimBundleMaker::create_xfm_channel(), get_textures_by_filename(), EggLoader::make_collision_plane(), EggLoader::make_collision_solids(), EggLoader::make_node(), and AnimBundleMaker::make_node().

typedef Children::const_pointer EggGroupNode::const_pointer [inherited]
 

Definition at line 99 of file eggGroupNode.h.

typedef Children::const_reference EggGroupNode::const_reference [inherited]
 

Definition at line 102 of file eggGroupNode.h.

typedef Children::const_reverse_iterator EggGroupNode::const_reverse_iterator [inherited]
 

Definition at line 106 of file eggGroupNode.h.

typedef Children::difference_type EggGroupNode::difference_type [inherited]
 

Definition at line 108 of file eggGroupNode.h.

typedef Children::const_iterator EggGroupNode::iterator [inherited]
 

Definition at line 103 of file eggGroupNode.h.

Referenced by EggMaterialCollection::collapse_equivalent_materials(), EggTextureCollection::collapse_equivalent_textures(), EggNode::determine_bin(), EggMaterialCollection::extract_materials(), EggTextureCollection::extract_textures(), EggLoader::find_collision_geometry(), EggMaterialCollection::insert_materials(), EggTextureCollection::insert_textures(), EggGroupNode::replace(), EggGroupNode::size(), EggBinMaker::sorts_less(), EggData::write(), and EggGroupNode::~EggGroupNode().

typedef RefCountObj<LMatrix4d> EggNode::MatrixFrame [protected, inherited]
 

Definition at line 118 of file eggNode.h.

Referenced by EggGroup::string_collide_flags().

typedef Children::const_pointer EggGroupNode::pointer [inherited]
 

Definition at line 98 of file eggGroupNode.h.

typedef Children::const_reference EggGroupNode::reference [inherited]
 

Definition at line 101 of file eggGroupNode.h.

typedef Children::const_reverse_iterator EggGroupNode::reverse_iterator [inherited]
 

Definition at line 105 of file eggGroupNode.h.

Referenced by EggGroupNode::begin(), and EggGroupNode::end().

typedef Children::size_type EggGroupNode::size_type [inherited]
 

Definition at line 107 of file eggGroupNode.h.

Member Enumeration Documentation

enum EggTable::TableType
 

Enumeration values:
TT_invalid 
TT_table 
TT_bundle 

Definition at line 48 of file eggTable.h.

enum EggNode::UnderFlags [protected, inherited]
 

Enumeration values:
UF_under_instance 
UF_under_transform 
UF_local_coord 

Definition at line 92 of file eggNode.h.

Constructor & Destructor Documentation

EggTable::EggTable (  const string &  name = ""  )  [inline]
 

Definition at line 31 of file eggTable.I.

References INLINE.

EggTable::EggTable (  const EggTable &  copy  )  [inline]
 

Definition at line 44 of file eggTable.I.

References _type, INLINE, and EggGroupNode::operator=().

Member Function Documentation

PointerTo< EggNode > EggGroupNode::add_child (  PointerTo< EggNode >  node  )  [inherited]
 

Adds the indicated child to the group and returns it.

If the child node is already a child of some other node, removes it first.

Definition at line 269 of file eggGroupNode.cxx.

Referenced by EggPolygon::decomp_concave().

void EggNode::adjust_under (   )  [protected, virtual, inherited]
 

This is called within update_under() after all the various under settings have been inherited directly from the parent node.

It is responsible for adjusting these settings to reflect states local to the current node; for instance, an node will force the UF_under_instance bit on.

Reimplemented in EggGroup.

Definition at line 361 of file eggNode.cxx.

Referenced by EggNode::test_under_integrity().

void EggNode::apply_texmats (   )  [inherited]
 

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 49 of file eggNode.cxx.

References EggNode::_parent, EggNode::determine_alpha_mode(), and NULL.

EggGroupNode::iterator EggGroupNode::begin (   )  const [inherited]
 

Definition at line 115 of file eggGroupNode.cxx.

References EggGroupNode::_children, and EggGroupNode::reverse_iterator.

Referenced by EggMaterialCollection::collapse_equivalent_materials(), EggTextureCollection::collapse_equivalent_textures(), AnimBundleMaker::create_xfm_channel(), EggNode::determine_bin(), EggGroupNode::erase(), EggMaterialCollection::insert_materials(), EggTextureCollection::insert_textures(), EggLoader::make_collision_plane(), EggLoader::make_node(), AnimBundleMaker::make_node(), EggGroupNode::replace(), EggBinMaker::sorts_less(), and EggGroupNode::~EggGroupNode().

void EggGroupNode::clear (   )  [inherited]
 

Definition at line 251 of file eggGroupNode.cxx.

void Namable::clear_name (   )  [inline, inherited]
 

Resets the Namable's name to empty.

Definition at line 82 of file namable.I.

References Namable::_name, and INLINE.

EggRenderMode * EggNode::determine_alpha_mode (   )  [virtual, inherited]
 

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 72 of file eggNode.cxx.

References EggNode::_parent, EggNode::determine_depth_write_mode(), and NULL.

Referenced by EggNode::apply_texmats().

EggRenderMode * EggNode::determine_bin (   )  [virtual, inherited]
 

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 172 of file eggNode.cxx.

References EggNode::_depth, EggNode::_parent, EggNode::_under_flags, EggGroupNode::begin(), EggGroupNode::end(), EggGroupNode::iterator, nassertv, NULL, and ReferenceCount::test_ref_count_integrity().

Referenced by EggNode::determine_depth_test_mode(), and EggGroup::determine_depth_write_mode().

EggRenderMode * EggNode::determine_depth_test_mode (   )  [virtual, inherited]
 

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 122 of file eggNode.cxx.

References EggNode::_parent, EggNode::determine_bin(), and NULL.

Referenced by EggGroup::determine_alpha_mode(), and EggPrimitive::determine_depth_write_mode().

EggRenderMode * EggNode::determine_depth_write_mode (   )  [virtual, inherited]
 

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 97 of file eggNode.cxx.

Referenced by EggNode::determine_alpha_mode().

EggRenderMode * EggNode::determine_draw_order (   )  [virtual, inherited]
 

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 147 of file eggNode.cxx.

References DCAST_INTO_R, egg_cleanup_parser(), egg_error_count(), egg_init_parser(), EggNode::egg_start_parse_body(), eggyyparse(), EggGroupNode::get_class_type(), EggNode::get_parent(), and TypedObject::is_of_type().

Referenced by EggPrimitive::determine_depth_test_mode().

bool EggNode::egg_start_parse_body (   )  [protected, virtual, inherited]
 

This function is called within parse_egg().

It should call the appropriate function on the lexer to initialize the parser into the state associated with this object. If the object cannot be parsed into directly, it should return false.

Reimplemented in EggGroup, EggPrimitive, and EggTexture.

Definition at line 282 of file eggNode.cxx.

Referenced by EggNode::determine_draw_order().

bool EggGroupNode::empty (   )  const [inherited]
 

Definition at line 163 of file eggGroupNode.cxx.

EggGroupNode::iterator EggGroupNode::end (   )  const [inherited]
 

Definition at line 127 of file eggGroupNode.cxx.

References EggGroupNode::_children, and EggGroupNode::reverse_iterator.

Referenced by EggMaterialCollection::collapse_equivalent_materials(), EggTextureCollection::collapse_equivalent_textures(), AnimBundleMaker::create_xfm_channel(), EggNode::determine_bin(), EggGroupNode::erase(), EggMaterialCollection::insert_materials(), EggTextureCollection::insert_textures(), EggLoader::make_collision_plane(), EggLoader::make_node(), AnimBundleMaker::make_node(), EggGroupNode::replace(), EggBinMaker::sorts_less(), and EggGroupNode::~EggGroupNode().

EggGroupNode::iterator EggGroupNode::erase (  iterator  first,
iterator  last
)  [inherited]
 

Definition at line 213 of file eggGroupNode.cxx.

References EggGroupNode::begin(), EggGroupNode::end(), and EggGroupNode::erase().

EggGroupNode::iterator EggGroupNode::erase (  iterator  position  )  [inherited]
 

Definition at line 200 of file eggGroupNode.cxx.

References x.

Referenced by EggGroupNode::erase(), and EggGroupNode::replace().

CoordinateSystem EggGroupNode::find_coordsys_entry (   )  [protected, inherited]
 

Walks the tree, looking for an EggCoordinateSystem entry.

If one is found, extracts it and returns its value. If multiple entries are found, extracts all of them and returns CS_invalid if they disagree.

Definition at line 956 of file eggGroupNode.cxx.

int EggGroupNode::find_materials (  EggMaterialCollection *  collection  )  [protected, inherited]
 

Walks the tree, looking for EggMaterials.

Each EggMaterial that is found is removed from the hierarchy and added to the EggMaterialCollection. Returns the number of EggMaterials found.

Definition at line 1072 of file eggGroupNode.cxx.

Referenced by EggMaterialCollection::clear().

int EggGroupNode::find_textures (  EggTextureCollection *  collection  )  [protected, inherited]
 

Walks the tree, looking for EggTextures.

Each EggTexture that is found is removed from the hierarchy and added to the EggTextureCollection. Returns the number of EggTextures found.

Definition at line 1020 of file eggGroupNode.cxx.

References EggGroupNode::_children, EggGroupNode::NVertexReference::_normal, EggGroupNode::NVertexReference::_polygon, EggGroupNode::NVertexReference::_vertex, EggPolygon::calculate_normal(), EggAttributes::clear_normal(), cs, DCAST, EggGroupNode::get_class_type(), EggPolygon::get_class_type(), EggVertex::get_pos3(), EggPrimitive::get_vertex(), TypedObject::is_of_type(), EggNode::is_under_instance(), EggGroupNode::prepare_remove_child(), EggGroupNode::r_collect_vertex_normals(), EggGroupNode::recompute_vertex_normals(), ReferenceCount::ref(), EggPrimitive::size(), and size_t.

Referenced by EggTextureCollection::clear().

void EggNode::flatten_transforms (   )  [inline, inherited]
 

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.

Definition at line 381 of file eggNode.I.

virtual TypeHandle EggTable::force_init_type (  void   )  [inline, virtual]
 

Reimplemented from EggGroupNode.

Definition at line 82 of file eggTable.h.

TypeHandle EggTable::get_class_type (  void   )  [inline, static]
 

Reimplemented from EggGroupNode.

Definition at line 71 of file eggTable.h.

References EggGroupNode::get_class_type(), and EggGroupNode::init_type().

Referenced by AnimBundleMaker::make_node().

int EggNode::get_depth (   )  const [inline, inherited]
 

Returns the number of nodes above this node in the egg hierarchy.

Definition at line 90 of file eggNode.I.

const string & Namable::get_name (   )  const [inline, inherited]
 

Definition at line 109 of file namable.I.

Referenced by ComputedVerticesMaker::add_normal(), GLGraphicsStateGuardian::begin_bind_clip_planes(), GLGraphicsStateGuardian::begin_bind_lights(), BuilderBucket::BuilderBucket(), EggVertex::clear_grefs(), AnimBundleMaker::create_xfm_channel(), SceneGraphReducer::do_flatten_siblings(), BuilderBucket::done_geom(), DXTextureContext8::DXTextureContext8(), PartGroup::find_child(), EggLoader::find_collision_geometry(), EggGroupUniquifier::get_category(), PartBundle::get_control_effect(), PartGroup::get_num_children(), EggMorph< Parameter >::get_offset(), AnimChannelBase::has_changed(), Namable::has_name(), EggMaterial::is_equivalent_to(), Texture::load(), EggLoader::make_node(), AnimBundleMaker::make_node(), FindApproxPath::Component::matches(), LineSegs::move_to(), MovingPartBase::MovingPartBase(), NodeMap::NodeMap(), EggMorph< Parameter >::operator<(), operator<<(), MouseWatcherRegion::output(), AnimGroup::output(), EggXfmSAnim::r_transform(), Texture::read(), MouseWatcherGroup::remove_region(), EggLoader::reparent_decals(), CRGraphicsStateGuardian::set_blend_mode(), NodePath::set_color(), GLGraphicsStateGuardian::set_draw_buffer(), AnimChannelScalarTable::set_table(), NodePath::set_transparency(), NodePathComponent::uncollapse(), Texture::unprepare(), TextNode::wordwrap_to(), MovingPartBase::write(), CollisionNode::xform(), and EggVertex::~EggVertex().

const LMatrix4d & EggNode::get_node_frame (   )  const [inline, inherited]
 

Returns the coordinate frame of the node itself.

This is simply the net product of all transformations up to the root.

Definition at line 210 of file eggNode.I.

Referenced by EggGroup::string_collide_flags().

const LMatrix4d & EggNode::get_node_frame_inv (   )  const [inline, inherited]
 

Returns the inverse of the matrix returned by get_node_frame().

See get_node_frame().

Definition at line 249 of file eggNode.I.

Referenced by EggGroup::string_collide_flags().

const LMatrix4d & EggNode::get_node_to_vertex (   )  const [inline, inherited]
 

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_frame() * get_vertex_frame_inv()

Definition at line 307 of file eggNode.I.

EggGroupNode * EggNode::get_parent (   )  const [inline, inherited]
 

Definition at line 75 of file eggNode.I.

References EggNode::_depth.

Referenced by EggNode::determine_draw_order(), and CharacterMaker::make_dynamic_primitive().

int ReferenceCount::get_ref_count (   )  const [inline, inherited]
 

Returns the current reference count.

Definition at line 183 of file referenceCount.I.

Referenced by RenderState::determine_bin_index(), RenderEffects::determine_show_bounds(), FontPool::ns_garbage_collect(), TexturePool::ns_garbage_collect(), MaterialPool::ns_get_material(), and TexturePool::ns_release_texture().

EggTable::TableType EggTable::get_table_type (   )  const [inline]
 

Definition at line 85 of file eggTable.I.

virtual TypeHandle EggTable::get_type (  void   )  const [inline, virtual]
 

Reimplemented from EggGroupNode.

Definition at line 79 of file eggTable.h.

int TypedObject::get_type_index (   )  const [inline, inherited]
 

Returns the internal index number associated with this object's TypeHandle, a unique number for each different type.

This is equivalent to get_type().get_index().

Definition at line 71 of file typedObject.I.

References TypeHandle::get_name(), TypedObject::get_type(), and INLINE.

const LMatrix4d & EggNode::get_vertex_frame (   )  const [inline, inherited]
 

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 entry reference their vertices in the coordinate system under effect at the time of the . Thus, nodes under an entry may return this non-identity matrix.

Specifically, this may return a non-identity matrix only if is_local_coord() is true.

Definition at line 188 of file eggNode.I.

References EggNode::_node_frame_inv, and NULL.

Referenced by EggGroup::string_collide_flags().

const LMatrix4d & EggNode::get_vertex_frame_inv (   )  const [inline, inherited]
 

Returns the inverse of the matrix returned by get_vertex_frame().

See get_vertex_frame().

Definition at line 229 of file eggNode.I.

Referenced by EggGroup::string_collide_flags().

const LMatrix4d & EggNode::get_vertex_to_node (   )  const [inline, inherited]
 

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_frame() * get_node_frame_inv()

Definition at line 278 of file eggNode.I.

References INLINE, EggNode::r_flatten_transforms(), and EggNode::update_under().

Referenced by EggLoader::find_collision_geometry().

bool Namable::has_name (   )  const [inline, inherited]
 

Returns true if the Namable has a nonempty name set, false if the name is empty.

Definition at line 97 of file namable.I.

References Namable::get_name(), and INLINE.

Referenced by EggGroupUniquifier::EggGroupUniquifier(), Texture::read(), and Texture::Texture().

void EggTable::init_type (  void   )  [inline, static]
 

Reimplemented from EggGroupNode.

Definition at line 74 of file eggTable.h.

EggGroupNode::iterator EggGroupNode::insert (  iterator  position,
PointerTo< EggNode >  x
)  [inherited]
 

Definition at line 187 of file eggGroupNode.cxx.

References EggGroupNode::_children.

Referenced by EggMaterialCollection::extract_materials(), and EggTextureCollection::extract_textures().

bool TypedObject::is_exact_type (  TypeHandle  handle  )  const [inline, inherited]
 

Returns true if the current object is the indicated type exactly.

Definition at line 101 of file typedObject.I.

Referenced by PT(), and CollisionNode::xform().

bool EggNode::is_local_coord (   )  const [inline, inherited]
 

Returns true if this node's vertices are not in the global coordinate space.

This will be the case if there was an node under a transform at or above this node.

Definition at line 144 of file eggNode.I.

Referenced by EggVertex::sorts_less_than().

bool TypedObject::is_of_type (  TypeHandle  handle  )  const [inline, inherited]
 

Returns true if the current object is or derives from the indicated type.

Definition at line 86 of file typedObject.I.

Referenced by EggMaterialCollection::collapse_equivalent_materials(), EggTextureCollection::collapse_equivalent_textures(), DeferredNodeProperty::compose(), AnimBundleMaker::create_s_channel(), CharacterMaker::create_slider(), ProjectionScreen::cull_callback(), DataNode::define_output(), EggNode::determine_draw_order(), CharacterMaker::egg_to_index(), EggGroupUniquifier::EggGroupUniquifier(), EggPoolUniquifier::EggPoolUniquifier(), EggGroupNode::find_textures(), StaticTextFont::get_glyph(), EggMaterialCollection::insert_materials(), EggTextureCollection::insert_textures(), CharacterJoint::make_copy(), PT(), EggGroupNode::r_flatten_transforms(), EggGroupNode::r_transform_vertices(), EggGroupNode::recompute_polygon_normals(), CollisionLevelState::reserve(), PandaFramework::reset_frame_rate(), PandaFramework::set_texture(), EggGroupNode::steal_children(), and DataGraphTraverser::traverse().

bool EggNode::is_under_instance (   )  const [inline, inherited]
 

Returns true if there is an node somewhere in the egg tree at or above this node, false otherwise.

Definition at line 108 of file eggNode.I.

References EggNode::_under_flags, INLINE, and EggNode::UF_local_coord.

Referenced by EggGroupNode::find_textures().

bool EggNode::is_under_transform (   )  const [inline, inherited]
 

Returns true if there is a entry somewhere in the egg tree at or above this node, false otherwise.

Definition at line 125 of file eggNode.I.

References EggNode::_vertex_frame, INLINE, and NULL.

EggTable & EggTable::operator= (  const EggTable &  copy  )  [inline]
 

Definition at line 56 of file eggTable.I.

References _type, and INLINE.

void Namable::output (  ostream &  out  )  const [inline, inherited]
 

Outputs the Namable.

This function simply writes the name to the output stream; most Namable derivatives will probably redefine this.

Reimplemented in BuilderBucket, AnimBundle, AnimChannelBase, AnimChannelFixed< SwitchType >, AnimGroup, PartBundle, CollisionNode, ButtonNode, HermiteCurve, RopeNode, Fog, GeomNode, LensNode, LightLensNode, LightNode, LODNode, PandaNode, PlaneNode, MouseWatcher, and MouseWatcherRegion.

Definition at line 126 of file namable.I.

bool EggNode::parse_egg (  const string &  egg_syntax  )  [inherited]
 

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 200 of file eggNode.cxx.

References EggNode::_parent.

void EggGroupNode::r_apply_texmats (  EggTextureCollection &  textures  )  [protected, virtual, inherited]
 

The recursive implementation of apply_texmats().

Reimplemented from EggNode.

Definition at line 932 of file eggGroupNode.cxx.

References ReferenceCount::ref().

void EggGroupNode::r_flatten_transforms (   )  [protected, virtual, inherited]
 

The recursive implementation of flatten_transforms().

Reimplemented from EggNode.

Reimplemented in EggGroup.

Definition at line 914 of file eggGroupNode.cxx.

References EggGroupNode::_children, DCAST, EggExternalReference::get_class_type(), TypedObject::is_of_type(), PT, and ReferenceCount::ref().

bool EggGroupNode::r_load_externals (  const DSearchPath &  searchpath,
CoordinateSystem  coordsys
)  [protected, inherited]
 

Walks the tree and locates unloaded external reference nodes, which it attempts to locate and load in.

The reference node is replaced with the entire subtree loaded. This is intended to be called from EggData::load_externals().

Definition at line 1126 of file eggGroupNode.cxx.

void EggGroupNode::r_mark_coordsys (  CoordinateSystem  cs  )  [protected, virtual, inherited]
 

This is only called immediately after loading an egg file from disk, to propagate the value found in the CoordinateSystem entry (or the default Y-up coordinate system) to all nodes that care about what the coordinate system is.

Reimplemented from EggNode.

Reimplemented in EggXfmSAnim.

Definition at line 896 of file eggGroupNode.cxx.

void EggGroupNode::r_transform (  const LMatrix4d &  mat,
const LMatrix4d &  inv,
CoordinateSystem  to_cs
)  [protected, virtual, inherited]
 

This is called from within the egg code by transform().

It applies a transformation matrix to the current node in some sensible way, then continues down the tree.

The first matrix is the transformation to apply; the second is its inverse. The third parameter is the coordinate system we are changing to, or CS_default if we are not changing coordinate systems.

Reimplemented from EggNode.

Reimplemented in EggGroup, and EggXfmSAnim.

Definition at line 843 of file eggGroupNode.cxx.

References EggGroupNode::_children.

void EggGroupNode::r_transform_vertices (  const LMatrix4d &  mat  )  [protected, virtual, inherited]
 

This is called from within the egg code by transform_vertices_only()().

It applies a transformation matrix to the current node in some sensible way (if the current node is a vertex pool with vertices), then continues down the tree.

Reimplemented from EggNode.

Definition at line 870 of file eggGroupNode.cxx.

References EggGroupNode::_children, EggMaterialCollection::add_material(), DCAST, EggMaterial::get_class_type(), TypedObject::is_of_type(), EggGroupNode::prepare_remove_child(), and tex.

EggGroupNode::reverse_iterator EggGroupNode::rbegin (   )  const [inherited]
 

Definition at line 139 of file eggGroupNode.cxx.

References EggGroupNode::_children.

void EggGroupNode::recompute_polygon_normals (  CoordinateSystem  cs = CS_default  )  [inherited]
 

Recomputes all the polygon normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions.

Normals are removed from the vertices and defined only on polygons, giving the geometry a faceted appearance.

This function also removes degenerate polygons that do not have enough vertices to define a normal. It does not affect normals for other kinds of primitives like Nurbs or Points.

This function does not remove or adjust vertices in the vertex pool; it only adds new vertices with the normals removed. Thus, it is a good idea to call remove_unused_vertices() after calling this.

Definition at line 532 of file eggGroupNode.cxx.

References EggGroupNode::_children, DCAST, EggGroupNode::get_class_type(), EggPolygon::get_class_type(), TypedObject::is_of_type(), and EggPolygon::triangulate_in_place().

Referenced by EggData::get_egg_filename().

void EggGroupNode::recompute_vertex_normals (  double  threshold,
CoordinateSystem  cs = CS_default
)  [inherited]
 

Recomputes all the vertex normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions.

A shared edge between two polygons (even in different groups) is considered smooth if the angle between the two edges is less than threshold degrees.

This function also removes degenerate polygons that do not have enough vertices to define a normal. It does not affect normals for other kinds of primitives like Nurbs or Points.

This function does not remove or adjust vertices in the vertex pool; it only adds new vertices with the correct normals. Thus, it is a good idea to call remove_unused_vertices() after calling this.

Definition at line 442 of file eggGroupNode.cxx.

References EggGroupNode::_children.

Referenced by EggGroupNode::find_textures(), and EggData::set_egg_filename().

int ReferenceCount::ref (   )  const [inline, inherited]
 

Explicitly increments the reference count.

User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.

This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.

The return value is the new reference count.

Definition at line 225 of file referenceCount.I.

Referenced by ClientDevice::ClientDevice(), EggGroupNode::find_textures(), EggGroupNode::r_apply_texmats(), EggGroupNode::r_flatten_transforms(), and EggGroupNode::reverse_vertex_ordering().

PointerTo< EggNode > EggGroupNode::remove_child (  PointerTo< EggNode >  node  )  [inherited]
 

Removes the indicated child node from the group and returns it.

If the child was not already in the group, does nothing and returns NULL.

Definition at line 291 of file eggGroupNode.cxx.

References DCAST, ImageBuffer::get_alpha_filename(), ImageBuffer::get_filename(), ImageBuffer::has_alpha_filename(), Filename::resolve_filename(), ImageBuffer::set_alpha_filename(), ImageBuffer::set_filename(), and tex.

int EggGroupNode::remove_invalid_primitives (   )  [inherited]
 

Removes primitives at this level and below which appear to be degenerate; e.g.

polygons with fewer than 3 vertices, etc. Returns the number of primitives removed.

Definition at line 754 of file eggGroupNode.cxx.

int EggGroupNode::remove_unused_vertices (   )  [inherited]
 

Removes all vertices from VertexPools within this group or below that are not referenced by at least one primitive.

Also renumbers all vertices after the operation so their indices are consecutive, beginning at zero. Returns the total number of vertices removed.

Note that this operates on the VertexPools within this group level, without respect to primitives that reference these vertices (unlike other functions like strip_normals()). It is therefore most useful to call this on the EggData root, rather than on a subgroup within the hierarchy, since a VertexPool may appear anywhere in the hierarchy.

Definition at line 709 of file eggGroupNode.cxx.

References EggGroupNode::_children, and cs.

EggGroupNode::reverse_iterator EggGroupNode::rend (   )  const [inherited]
 

Definition at line 151 of file eggGroupNode.cxx.

References EggGroupNode::_children.

void EggGroupNode::replace (  iterator  position,
PointerTo< EggNode >  x
)  [inherited]
 

Replaces the node at the indicated position with the indicated node.

It is an error to call this with an invalid position iterator (e.g. end()).

Definition at line 235 of file eggGroupNode.cxx.

References EggGroupNode::begin(), EggGroupNode::end(), EggGroupNode::erase(), EggGroupNode::iterator, and PT.

void EggGroupNode::resolve_filenames (  const DSearchPath &  searchpath  )  [inherited]
 

Walks the tree and attempts to resolve any filenames encountered.

This looks up filenames in the search path, etc. It does not automatically search the egg_path for missing files.

Definition at line 344 of file eggGroupNode.cxx.

References cs, deg_2_rad(), and EggGroupNode::r_collect_vertex_normals().

void EggGroupNode::reverse_vertex_ordering (   )  [inherited]
 

Reverses the vertex ordering of all polygons defined at this node and below.

Does not change the surface normals, if any.

Definition at line 387 of file eggGroupNode.cxx.

References EggGroupNode::NVertexReference::_normal, dot(), and ReferenceCount::ref().

void Namable::set_name (  const string &  name  )  [inline, inherited]
 

Definition at line 69 of file namable.I.

References Namable::_name.

Referenced by BuilderBucket::BuilderBucket(), SceneGraphReducer::do_flatten_siblings(), Texture::read(), PandaNode::reparent(), and Texture::Texture().

void EggTable::set_table_type (  TableType  type  )  [inline]
 

Definition at line 72 of file eggTable.I.

References _type.

EggGroupNode::size_type EggGroupNode::size (   )  const [inherited]
 

Definition at line 175 of file eggGroupNode.cxx.

References EggGroupNode::iterator, and EggGroupNode::prepare_remove_child().

void EggGroupNode::steal_children (  EggGroupNode &  other  )  [inherited]
 

Moves all the children from the other node to this one.

This is especially useful because the group node copy assignment operator does not copy children.

Definition at line 316 of file eggGroupNode.cxx.

References EggGroupNode::_children, DCAST, EggGroupNode::get_class_type(), EggPrimitive::get_class_type(), TypedObject::is_of_type(), and EggPrimitive::reverse_vertex_ordering().

Referenced by EggXfmSAnim::add_data().

EggTable::TableType EggTable::string_table_type (  const string &  string  )  [static]
 

Returns the TableType value associated with the given string representation, or TT_invalid if the string does not match any known TableType value.

Definition at line 75 of file eggTable.cxx.

References nassertr, TT_bundle, TT_invalid, and TT_table.

void EggGroupNode::strip_normals (   )  [inherited]
 

Removes all normals from primitives, and the vertices they reference, at this node and below.

This function does not remove or adjust vertices in the vertex pool; it only adds new vertices with the normal removed. Thus, it is a good idea to call remove_unused_vertices() after calling this.

Reimplemented in EggData.

Definition at line 595 of file eggGroupNode.cxx.

void ReferenceCount::test_ref_count_integrity (   )  const [inline, inherited]
 

Does some easy checks to make sure that the reference count isn't completely bogus.

Definition at line 328 of file referenceCount.I.

References INLINE.

Referenced by EggNode::determine_bin(), and ReferenceCount::~ReferenceCount().

void EggNode::test_under_integrity (   )  const [inherited]
 

Recursively checks the integrity of the _under_flags, _parent, and _depth members of this node and all of its ancestors.

Definition at line 235 of file eggNode.cxx.

References EggNode::_depth, EggNode::_node_frame, EggNode::_node_frame_inv, EggNode::_node_to_vertex, EggNode::_parent, EggNode::_under_flags, EggNode::_vertex_frame, EggNode::_vertex_frame_inv, EggNode::_vertex_to_node, EggNode::adjust_under(), and NULL.

void EggNode::transform (  const LMatrix4d &  mat  )  [inline, inherited]
 

Applies the indicated transformation to the node and all of its descendants.

Reimplemented in EggVertexPool.

Definition at line 327 of file eggNode.I.

void EggNode::transform_vertices_only (  const LMatrix4d &  mat  )  [inline, inherited]
 

Applies the indicated transformation only to vertices that appear in global space within vertex pools at this node and below.

Joints and other transforms are not affected, nor are local vertices.

Definition at line 352 of file eggNode.I.

int EggGroupNode::triangulate_polygons (  bool  convex_also  )  [inherited]
 

Replace all higher-order polygons at this point in the scene graph and below with triangles.

Returns the total number of new triangles produced, less degenerate polygons removed.

If convex_also is true, both concave and convex polygons will be subdivided into triangles; otherwise, only concave polygons will be subdivided, and convex polygons will be largely unchanged.

Definition at line 651 of file eggGroupNode.cxx.

References EggGroupNode::_children, nassertv, and EggNode::update_under().

int ReferenceCount::unref (   )  const [inline, inherited]
 

Explicitly decrements the reference count.

Note that the object will not be implicitly deleted by unref() simply because the reference count drops to zero. (Having a member function delete itself is problematic; plus, we don't have a virtual destructor anyway.) However, see the helper function unref_delete().

User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.

This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.

The return value is the new reference count.

Definition at line 293 of file referenceCount.I.

References INLINE.

Referenced by RenderState::determine_bin_index(), and RenderEffects::determine_show_bounds().

void EggGroupNode::update_under (  int  depth_offset  )  [protected, virtual, inherited]
 

This function is called from within EggGroupNode whenever the parentage of the node has changed.

It should update the depth and under_instance flags accordingly.

Offset is the difference between the old depth value and the new value. It should be consistent with the supplied depth value. If it is not, we have some error.

Reimplemented from EggNode.

Definition at line 806 of file eggGroupNode.cxx.

Referenced by EggGroup::get_billboard_type(), and EggGroup::~EggGroup().

void EggTable::write (  ostream &  out,
int  indent_level
)  const [virtual]
 

Writes the table and all of its children to the indicated output stream in Egg format.

Reimplemented from EggGroupNode.

Definition at line 40 of file eggTable.cxx.

References TT_bundle.

void EggNamedObject::write_header (  ostream &  out,
int  indent_level,
const char *  egg_keyword
)  const [inherited]
 

Writes the first line of the egg object, e.g.

"<Group> group_name {" or some such. It automatically enquotes the name if it contains any special characters. egg_keyword is the keyword that begins the line, e.g. "<Group>".

Definition at line 46 of file eggNamedObject.cxx.

Referenced by EggPoint::cleanup(), EggNurbsSurface::is_closed_u(), and EggExternalReference::operator=().

Member Data Documentation

int EggNode::_depth [protected, inherited]
 

Definition at line 115 of file eggNode.h.

Referenced by EggNode::determine_bin(), EggNode::EggNode(), EggNode::get_parent(), and EggNode::test_under_integrity().

PointerTo< MatrixFrame > EggNode::_node_frame [protected, inherited]
 

Definition at line 121 of file eggNode.h.

Referenced by EggGroup::string_collide_flags(), and EggNode::test_under_integrity().

PointerTo< MatrixFrame > EggNode::_node_frame_inv [protected, inherited]
 

Definition at line 123 of file eggNode.h.

Referenced by EggNode::get_vertex_frame(), EggGroup::string_collide_flags(), and EggNode::test_under_integrity().

PointerTo< MatrixFrame > EggNode::_node_to_vertex [protected, inherited]
 

Definition at line 125 of file eggNode.h.

Referenced by EggGroup::string_collide_flags(), and EggNode::test_under_integrity().

EggGroupNode* EggNode::_parent [protected, inherited]
 

Definition at line 114 of file eggNode.h.

Referenced by EggNode::apply_texmats(), EggNode::determine_alpha_mode(), EggNode::determine_bin(), EggNode::determine_depth_test_mode(), EggNode::EggNode(), EggNode::operator=(), EggNode::parse_egg(), and EggNode::test_under_integrity().

TableType EggTable::_type [private]
 

Definition at line 66 of file eggTable.h.

Referenced by EggTable(), operator=(), and set_table_type().

TypeHandle EggTable::_type_handle [static, private]
 

Reimplemented from EggGroupNode.

Definition at line 27 of file eggTable.cxx.

int EggNode::_under_flags [protected, inherited]
 

Definition at line 116 of file eggNode.h.

Referenced by EggNode::determine_bin(), EggNode::EggNode(), EggNode::is_under_instance(), EggGroup::string_collide_flags(), and EggNode::test_under_integrity().

PointerTo< MatrixFrame > EggNode::_vertex_frame [protected, inherited]
 

Definition at line 120 of file eggNode.h.

Referenced by EggNode::is_under_transform(), and EggNode::test_under_integrity().

PointerTo< MatrixFrame > EggNode::_vertex_frame_inv [protected, inherited]
 

Definition at line 122 of file eggNode.h.

Referenced by EggNode::test_under_integrity().

PointerTo< MatrixFrame > EggNode::_vertex_to_node [protected, inherited]
 

Definition at line 124 of file eggNode.h.

Referenced by EggGroup::string_collide_flags(), and EggNode::test_under_integrity().

The documentation for this class was generated from the following files:
Generated on Fri May 2 00:50:25 2003 for Panda by doxygen1.3