179 lines
5.1 KiB
Text
179 lines
5.1 KiB
Text
/**
|
|
* PANDA 3D SOFTWARE
|
|
* Copyright (c) Carnegie Mellon University. All rights reserved.
|
|
*
|
|
* All use of this software is subject to the terms of the revised BSD
|
|
* license. You should have received a copy of this license along
|
|
* with this source code in a file named "LICENSE."
|
|
*
|
|
* @file eggData.I
|
|
* @author drose
|
|
* @date 1999-02-11
|
|
*/
|
|
|
|
/**
|
|
*
|
|
*/
|
|
INLINE EggData::
|
|
EggData() {
|
|
_auto_resolve_externals = false;
|
|
_had_absolute_pathnames = false;
|
|
_coordsys = CS_default;
|
|
_egg_timestamp = 0;
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
*/
|
|
INLINE EggData::
|
|
EggData(const EggData ©) :
|
|
EggGroupNode(copy),
|
|
_auto_resolve_externals(copy._auto_resolve_externals),
|
|
_had_absolute_pathnames(copy._had_absolute_pathnames),
|
|
_coordsys(copy._coordsys),
|
|
_egg_filename(copy._egg_filename),
|
|
_egg_timestamp(copy._egg_timestamp)
|
|
{
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
INLINE EggData &EggData::
|
|
operator = (const EggData ©) {
|
|
EggGroupNode::operator = (copy);
|
|
_auto_resolve_externals = copy._auto_resolve_externals;
|
|
_had_absolute_pathnames = copy._had_absolute_pathnames;
|
|
_coordsys = copy._coordsys;
|
|
_egg_filename = copy._egg_filename;
|
|
_egg_timestamp = copy._egg_timestamp;
|
|
return *this;
|
|
}
|
|
|
|
/**
|
|
* Indicates whether the EggData object will automatically resolve any
|
|
* external references when read() is called. The default is false.
|
|
*/
|
|
INLINE void EggData::
|
|
set_auto_resolve_externals(bool resolve) {
|
|
_auto_resolve_externals = resolve;
|
|
}
|
|
|
|
/**
|
|
* Indicates whether the EggData object will automatically resolve any
|
|
* external references when read() is called. The default is false.
|
|
*/
|
|
INLINE bool EggData::
|
|
get_auto_resolve_externals() const {
|
|
return _auto_resolve_externals;
|
|
}
|
|
|
|
/**
|
|
* Returns true if the data processed in the last call to read() contained
|
|
* absolute pathnames, or false if those pathnames were all relative.
|
|
*
|
|
* This method is necessary because if auto_resolve_externals() is in effect,
|
|
* it may modify the pathnames to be absolute whether or not they were as
|
|
* loaded from disk. This method can be used to query the state of the
|
|
* original egg file from disk.
|
|
*/
|
|
INLINE bool EggData::
|
|
original_had_absolute_pathnames() const {
|
|
return _had_absolute_pathnames;
|
|
}
|
|
|
|
/**
|
|
* Returns the coordinate system in which the egg file is defined.
|
|
*/
|
|
INLINE CoordinateSystem EggData::
|
|
get_coordinate_system() const {
|
|
return _coordsys;
|
|
}
|
|
|
|
|
|
/**
|
|
* Sets the filename--especially the directory part--in which the egg file is
|
|
* considered to reside. This is also implicitly set by read().
|
|
*/
|
|
INLINE void EggData::
|
|
set_egg_filename(const Filename &egg_filename) {
|
|
_egg_filename = egg_filename;
|
|
}
|
|
|
|
/**
|
|
* Returns the directory in which the egg file is considered to reside.
|
|
*/
|
|
INLINE const Filename &EggData::
|
|
get_egg_filename() const {
|
|
return _egg_filename;
|
|
}
|
|
|
|
/**
|
|
* Sets the timestamp of the egg file on disk, at the time it was opened for
|
|
* reading. This is also implicitly set by read().
|
|
*/
|
|
INLINE void EggData::
|
|
set_egg_timestamp(time_t egg_timestamp) {
|
|
_egg_timestamp = egg_timestamp;
|
|
}
|
|
|
|
/**
|
|
* Returns the timestamp of the egg file on disk, at the time it was opened
|
|
* for reading, or 0 if this information is not available.
|
|
*/
|
|
INLINE time_t EggData::
|
|
get_egg_timestamp() const {
|
|
return _egg_timestamp;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
INLINE void EggData::
|
|
recompute_vertex_normals(double threshold) {
|
|
EggGroupNode::recompute_vertex_normals(threshold, _coordsys);
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
INLINE void EggData::
|
|
recompute_polygon_normals() {
|
|
EggGroupNode::recompute_polygon_normals(_coordsys);
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
INLINE void EggData::
|
|
strip_normals() {
|
|
EggGroupNode::strip_normals();
|
|
}
|