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Space Comps
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The OrbitalPhysics class is a Physics for three dimensional motion with gravity. More...
#include <orbitalphysics.h>
Public Member Functions | |
| OrbitalPhysics (double xWinSize, double yWinSize, double zWinSize, double massIn) | |
| Constructs a Physics3D object with gravity. More... | |
| double | calculatePE (Particle *p) |
| Calculates the potential energy of the given Particle. More... | |
 Public Member Functions inherited from Physics | |
| Physics () | |
| Constructs a Physics object. More... | |
| Particle * | getCenterOfGravity () |
| Returns the centerOfGravity. More... | |
| bool | isOrbital () |
| Boolean for if the system is orbiting. More... | |
| bool | particlesOverlap (Particle *a, Particle *b) |
| Determines whether or not two Particles overlap. More... | |
| void | resolveCollision (Particle *lP, Particle *rP, int timestep) |
| Resolves a collision between two Particles. More... | |
| std::valarray< double > | getRelativeVelocity (Particle *a, Particle *b) |
| Returns the relative velocity between two Particles. More... | |
| double | getMagnitude (std::valarray< double > vel) |
| Returns the magnitude of a vector. More... | |
| double | calculateKE (Particle *p) |
| Calculates the kinetic energy of a given Particle. More... | |
| double | randDouble (double min, double max) |
| Generates a random double within a given range. More... | |
| double | randGamma (double mean, double var) |
| Generates a random double within a given range. More... | |
| int | randBit () |
| Generates a 0 or 1. More... | |
Additional Inherited Members | |
| Protected Attributes inherited from Physics | |
| bool | orbital |
| Particle * | centerOfGravity |
| boost::mt19937 | rng |
The OrbitalPhysics class is a Physics for three dimensional motion with gravity.
This physics is the same as the other Physics, but here the Particles are attracted by the center of gravity and accelerate towards it with each timestep.
| OrbitalPhysics::OrbitalPhysics | ( | double | xWinSize, |
| double | yWinSize, | ||
| double | zWinSize, | ||
| double | massIn | ||
| ) |
Constructs a Physics3D object with gravity.
This calls Physics::Physics(), then initializes the size of the space, then creates the Particle responsible for gravitation.
| xWinSize | The size of the x dimension of this space. |
| yWinSize | The size of the y dimension of this space. |
| zWinSize | The size of the z dimension of this space. |
| massIn | the mass of the Particle responsible for gravity. |
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virtual |
Calculates the potential energy of the given Particle.
Based on the gravitational field, and the Particle's characteristics, this determines the amount of potential energy. Note, potential energy is always a negative value, with a Particle infinitely far from the center of gravity having 0 potential energy.
| p | The Particle we are calculating the potential energy for. |
Reimplemented from Physics.
1.8.6
