Panda3D
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An abstract mathematical description of a parabola, particularly useful for describing arcs of projectiles. More...
#include <pandadoc.hpp>
Public Member Functions | |
__init__ () | |
Constructs a meaningless degenerate parabola. | |
__init__ (const LParabolaf copy) | |
__init__ (const LVecBase3f a, const LVecBase3f b, const LVecBase3f c) | |
Constructs a parabola given the three points of the parametric equation: the acceleration, initial velocity, and start point. | |
LPoint3f | calcPoint (float t) |
Computes the point on the parabola at time t. | |
const LVecBase3f | getA () |
Returns the first point of the parabola's parametric equation: the acceleration. | |
const LVecBase3f | getB () |
Returns the second point of the parabola's parametric equation: the initial velocity. | |
const LVecBase3f | getC () |
Returns the third point of the parabola's parametric equation: the start point. | |
LParabolaf | operator= (const LParabolaf copy) |
output (Ostream out) | |
readDatagram (DatagramIterator source) | |
Reads the parabola from the Datagram using get_stdfloat(). | |
readDatagramFixed (DatagramIterator source) | |
Reads the parabola from the Datagram using get_float32() or get_float64(). | |
write (Ostream out, int indent_level) | |
writeDatagram (Datagram destination) | |
Writes the parabola to the Datagram using add_stdfloat(). | |
writeDatagramFixed (Datagram destination) | |
Writes the parabola to the Datagram using add_float32() or add_float64(), depending on the type of floats in the parabola, regardless of the setting of Datagram::set_stdfloat_double(). | |
xform (const LMatrix4f mat) | |
Transforms the parabola by the indicated matrix. | |
An abstract mathematical description of a parabola, particularly useful for describing arcs of projectiles.
The parabolic equation, given parametrically here, is P = At^2 + Bt + C.
__init__ | ( | ) |
Constructs a meaningless degenerate parabola.
__init__ | ( | const LParabolaf | copy | ) |
__init__ | ( | const LVecBase3f | a, |
const LVecBase3f | b, | ||
const LVecBase3f | c ) |
Constructs a parabola given the three points of the parametric equation: the acceleration, initial velocity, and start point.
LPoint3f calcPoint | ( | float | t | ) |
Computes the point on the parabola at time t.
const LVecBase3f getA | ( | ) |
Returns the first point of the parabola's parametric equation: the acceleration.
const LVecBase3f getB | ( | ) |
Returns the second point of the parabola's parametric equation: the initial velocity.
const LVecBase3f getC | ( | ) |
Returns the third point of the parabola's parametric equation: the start point.
LParabolaf operator= | ( | const LParabolaf | copy | ) |
output | ( | Ostream | out | ) |
readDatagram | ( | DatagramIterator | source | ) |
Reads the parabola from the Datagram using get_stdfloat().
readDatagramFixed | ( | DatagramIterator | source | ) |
Reads the parabola from the Datagram using get_float32() or get_float64().
See write_datagram_fixed().
write | ( | Ostream | out, |
int | indent_level ) |
writeDatagram | ( | Datagram | destination | ) |
Writes the parabola to the Datagram using add_stdfloat().
This is appropriate when you want to write the vector using the standard width setting, especially when you are writing a bam file.
writeDatagramFixed | ( | Datagram | destination | ) |
Writes the parabola to the Datagram using add_float32() or add_float64(), depending on the type of floats in the parabola, regardless of the setting of Datagram::set_stdfloat_double().
This is appropriate when you want to write a fixed-width value to the datagram, especially when you are not writing a bam file.
xform | ( | const LMatrix4f | mat | ) |
Transforms the parabola by the indicated matrix.