200 lines
7.9 KiB
Plaintext
200 lines
7.9 KiB
Plaintext
// Filename: eggData.I
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// Created by: drose (11Feb99)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) Carnegie Mellon University. All rights reserved.
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//
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// All use of this software is subject to the terms of the revised BSD
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// license. You should have received a copy of this license along
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// with this source code in a file named "LICENSE."
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//
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////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////
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// Function: EggData::Constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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INLINE EggData::
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EggData() {
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_auto_resolve_externals = false;
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_had_absolute_pathnames = false;
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_coordsys = CS_default;
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}
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////////////////////////////////////////////////////////////////////
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// Function: EggData::Copy constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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INLINE EggData::
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EggData(const EggData ©) :
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EggGroupNode(copy),
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_auto_resolve_externals(copy._auto_resolve_externals),
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_had_absolute_pathnames(copy._had_absolute_pathnames),
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_coordsys(copy._coordsys),
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_egg_filename(copy._egg_filename)
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{
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}
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////////////////////////////////////////////////////////////////////
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// Function: EggData::Copy assignment operator
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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INLINE EggData &EggData::
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operator = (const EggData ©) {
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EggGroupNode::operator = (copy);
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_auto_resolve_externals = copy._auto_resolve_externals;
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_had_absolute_pathnames = copy._had_absolute_pathnames;
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_coordsys = copy._coordsys;
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_egg_filename = copy._egg_filename;
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return *this;
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}
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////////////////////////////////////////////////////////////////////
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// Function: EggData::set_auto_resolve_externals
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// Access: Public
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// Description: Indicates whether the EggData object will
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// automatically resolve any external references when
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// read() is called. The default is false.
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////////////////////////////////////////////////////////////////////
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INLINE void EggData::
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set_auto_resolve_externals(bool resolve) {
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_auto_resolve_externals = resolve;
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}
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////////////////////////////////////////////////////////////////////
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// Function: EggData::get_auto_resolve_externals
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// Access: Public
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// Description: Indicates whether the EggData object will
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// automatically resolve any external references when
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// read() is called. The default is false.
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////////////////////////////////////////////////////////////////////
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INLINE bool EggData::
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get_auto_resolve_externals() const {
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return _auto_resolve_externals;
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}
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////////////////////////////////////////////////////////////////////
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// Function: EggData::original_had_absolute_pathnames
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// Access: Public
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// Description: Returns true if the data processed in the last call
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// to read() contained absolute pathnames, or false if
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// those pathnames were all relative.
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//
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// This method is necessary because if
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// auto_resolve_externals() is in effect, it may modify
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// the pathnames to be absolute whether or not they were
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// as loaded from disk. This method can be used to
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// query the state of the original egg file from disk.
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////////////////////////////////////////////////////////////////////
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INLINE bool EggData::
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original_had_absolute_pathnames() const {
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return _had_absolute_pathnames;
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}
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////////////////////////////////////////////////////////////////////
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// Function: EggData::get_coordinate_system
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// Access: Public
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// Description: Returns the coordinate system in which the egg file
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// is defined.
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////////////////////////////////////////////////////////////////////
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INLINE CoordinateSystem EggData::
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get_coordinate_system() const {
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return _coordsys;
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}
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////////////////////////////////////////////////////////////////////
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// Function: EggData::set_egg_filename
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// Access: Public
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// Description: Sets the filename--especially the directory part--in
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// which the egg file is considered to reside. This is
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// also implicitly set by read().
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////////////////////////////////////////////////////////////////////
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INLINE void EggData::
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set_egg_filename(const Filename &egg_filename) {
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_egg_filename = egg_filename;
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}
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////////////////////////////////////////////////////////////////////
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// Function: EggData::get_egg_filename
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// Access: Public
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// Description: Returns the directory in which the egg file is
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// considered to reside.
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////////////////////////////////////////////////////////////////////
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INLINE const Filename &EggData::
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get_egg_filename() const {
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return _egg_filename;
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}
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////////////////////////////////////////////////////////////////////
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// Function: EggData::recompute_vertex_normals
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// Access: Public
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// Description: Recomputes all the vertex normals for polygon
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// geometry at this group node and below so that they
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// accurately reflect the vertex positions. A shared
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// edge between two polygons (even in different groups)
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// is considered smooth if the angle between the two
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// edges is less than threshold degrees.
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//
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// This function also removes degenerate polygons that
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// do not have enough vertices to define a normal. It
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// does not affect normals for other kinds of primitives
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// like Nurbs or Points.
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//
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// This function does not remove or adjust vertices in
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// the vertex pool; it only adds new vertices with the
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// correct normals. Thus, it is a good idea to call
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// remove_unused_vertices() after calling this.
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////////////////////////////////////////////////////////////////////
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INLINE void EggData::
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recompute_vertex_normals(double threshold) {
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EggGroupNode::recompute_vertex_normals(threshold, _coordsys);
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}
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////////////////////////////////////////////////////////////////////
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// Function: EggData::recompute_polygon_normals
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// Access: Public
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// Description: Recomputes all the polygon normals for polygon
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// geometry at this group node and below so that they
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// accurately reflect the vertex positions. Normals are
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// removed from the vertices and defined only on
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// polygons, giving the geometry a faceted appearance.
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//
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// This function also removes degenerate polygons that
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// do not have enough vertices to define a normal. It
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// does not affect normals for other kinds of primitives
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// like Nurbs or Points.
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//
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// This function does not remove or adjust vertices in
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// the vertex pool; it only adds new vertices with the
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// normals removed. Thus, it is a good idea to call
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// remove_unused_vertices() after calling this.
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////////////////////////////////////////////////////////////////////
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INLINE void EggData::
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recompute_polygon_normals() {
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EggGroupNode::recompute_polygon_normals(_coordsys);
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}
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////////////////////////////////////////////////////////////////////
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// Function: EggData::strip_normals
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// Access: Public
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// Description: Removes all normals from primitives, and the vertices
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// they reference, at this node and below.
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//
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// This function does not remove or adjust vertices in
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// the vertex pool; it only adds new vertices with the
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// normal removed. Thus, it is a good idea to call
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// remove_unused_vertices() after calling this.
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////////////////////////////////////////////////////////////////////
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INLINE void EggData::
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strip_normals() {
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EggGroupNode::strip_normals();
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}
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