Panda3D
|
An abstract mathematical description of a parabola, particularly useful for describing arcs of projectiles. More...
Public Member Functions | |
__init__ () | |
Constructs a meaningless degenerate parabola. More... | |
__init__ (const LParabolad copy) | |
__init__ (const LVecBase3d a, const LVecBase3d b, const LVecBase3d c) | |
Constructs a parabola given the three points of the parametric equation: the acceleration, initial velocity, and start point. More... | |
LPoint3d | calcPoint (double t) |
Computes the point on the parabola at time t. More... | |
const LVecBase3d | getA () |
Returns the first point of the parabola's parametric equation: the acceleration. More... | |
const LVecBase3d | getB () |
Returns the second point of the parabola's parametric equation: the initial velocity. More... | |
const LVecBase3d | getC () |
Returns the third point of the parabola's parametric equation: the start point. More... | |
LParabolad | operator= (const LParabolad copy) |
output (Ostream out) | |
readDatagram (DatagramIterator source) | |
Reads the parabola from the Datagram using get_stdfloat(). More... | |
readDatagramFixed (DatagramIterator source) | |
Reads the parabola from the Datagram using get_float32() or get_float64(). More... | |
write (Ostream out, int indent_level) | |
writeDatagram (Datagram destination) | |
Writes the parabola to the Datagram using add_stdfloat(). More... | |
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(). More... | |
xform (const LMatrix4d mat) | |
Transforms the parabola by the indicated matrix. More... | |
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 LParabolad | copy | ) |
__init__ | ( | const LVecBase3d | a, |
const LVecBase3d | b, | ||
const LVecBase3d | c | ||
) |
Constructs a parabola given the three points of the parametric equation: the acceleration, initial velocity, and start point.
LPoint3d calcPoint | ( | double | t | ) |
Computes the point on the parabola at time t.
const LVecBase3d getA | ( | ) |
Returns the first point of the parabola's parametric equation: the acceleration.
const LVecBase3d getB | ( | ) |
Returns the second point of the parabola's parametric equation: the initial velocity.
const LVecBase3d getC | ( | ) |
Returns the third point of the parabola's parametric equation: the start point.
LParabolad operator= | ( | const LParabolad | 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 LMatrix4d | mat | ) |
Transforms the parabola by the indicated matrix.