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trackerData.I
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167 lines (152 loc) · 3.73 KB
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/**
* 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 trackerData.I
* @author jason
* @date 2000-08-04
*/
/**
*
*/
INLINE TrackerData::
TrackerData() :
_flags(0)
{
}
/**
*
*/
INLINE TrackerData::
TrackerData(const TrackerData ©) {
(*this) = copy;
}
/**
* Removes all data from the structure.
*/
INLINE void TrackerData::
clear() {
_flags = 0;
}
/**
* Indicates the time at which the position information (pos and orient) are
* effective. This is a time elapsed in seconds since some undefined epoch;
* it may or may not correspond to the clock time indicated in the global
* ClockObject.
*/
INLINE void TrackerData::
set_time(double time) {
_time = time;
_flags |= F_has_time;
}
/**
* Returns true if the position information time is available. See
* set_time().
*/
INLINE bool TrackerData::
has_time() const {
return (_flags & F_has_time) != 0;
}
/**
* Returns the time at which the position information (pos and orient) are
* effective. It is an error to call this if has_time() does not return true.
* See set_time().
*/
INLINE double TrackerData::
get_time() const {
nassertr(has_time(), 0.0);
return _time;
}
/**
* Indicates the current position of the tracker sensor in space. The
* coordinate system of this position is defined by the tracker.
*/
INLINE void TrackerData::
set_pos(const LPoint3 &pos) {
_pos = pos;
_flags |= F_has_pos;
}
/**
* Returns true if the current position is available. See set_pos().
*/
INLINE bool TrackerData::
has_pos() const {
return (_flags & F_has_pos) != 0;
}
/**
* Returns the current position of the tracker. It is legal to call this if
* has_pos() returns false; in this case, the position will always be (0, 0,
* 0).
*/
INLINE const LPoint3 &TrackerData::
get_pos() const {
if (has_pos()) {
return _pos;
} else {
static LPoint3 zero(0.0, 0.0, 0.0);
return zero;
}
}
/**
* Indicates the current orientation of the tracker sensor in space. The
* coordinate system of this orientation is defined by the tracker, but should
* be the same coordinate system as that reflected by set_pos().
*/
INLINE void TrackerData::
set_orient(const LOrientation &orient) {
_orient = orient;
_flags |= F_has_orient;
}
/**
* Returns true if the current orientation is available. See set_orient().
*/
INLINE bool TrackerData::
has_orient() const {
return (_flags & F_has_orient) != 0;
}
/**
* Returns the current orientation of the tracker. It is legal to call this
* if has_orient() returns false; in this case, the result is always the
* identity orientation.
*/
INLINE const LOrientation &TrackerData::
get_orient() const {
if (has_orient()) {
return _orient;
} else {
static LOrientation ident = LOrientation::ident_quat();
return ident;
}
}
/**
* Indicates the amount of elapsed time over which which the information (pos
* and orient) were computed. This only makes sense if the information
* represents velocity or acceleration, rather than position. This is an
* elapsed time in seconds.
*/
INLINE void TrackerData::
set_dt(double dt) {
_dt = dt;
_flags |= F_has_dt;
}
/**
* Returns true if the computed elapsed time is available. See set_dt().
*/
INLINE bool TrackerData::
has_dt() const {
return (_flags & F_has_dt) != 0;
}
/**
* Returns the amount of elapsed time over which the information (pos and
* orient) were computed. It is an error to call this if has_dt() does not
* return true. See set_dt().
*/
INLINE double TrackerData::
get_dt() const {
nassertr(has_dt(), 0.0);
return _dt;
}