Here are the classes, structs, unions and interfaces with brief descriptions:
  ACFDTD22 | Simulate the propagation of the acoustic wave in lossy media using the finite-difference time-domain method |
| ACFDTD22MemEfficient | Same as ACFDTD22 except that UPML is assumed to truncate the boundaries |
| AcousticProperty | Assume the following analogy between the acoustic quantities and the electromagnetic quantities |
| CartPosition | Denote a point in the Cartesian coordinate |
| Circle | |
| ElasticProperty | |
| ELFDTD22 | Simulate the propagation of the elastic wave using the finite-difference time-domain method |
| Function | |
| Gaussian | |
| GaussianModulatedSinusoid | |
| Grid | Specify the grid setting over the effective domain |
| HardPlaneWaveSource | Hard plane wave source imposed along the line  parallel to the z axis |
| HNAcousticProperty | Implement the dispersion model proposed in [Holm2011] |
| LineSensor | Record the pressure field along a particular line parallel to y axis |
| Material | The Uniform Material Interface (UMI) |
| MaterialDecorator | The implementation of the decorator pattern requires the class to contain a pointer to itself |
| Model | Container class |
| Node | |
| ObservationRegion | Represent a rectangular region in which all the field quantities are recorded for post processing |
| PML | Use the complex frequency shifted PML as the acoustic absorbing boundary condition |
| PointSensor | Record the pressure field at a particular point |
| Polygon | |
| Rectangle | Specify a rectangular region in the Y-Z plane |
| Scalar | |
| Sensor | |
| Shape | |
| SimulationOutputFile | |
| Sinusoid | |
| Solid | Have a Shape and a Material |
| SpherePosition | Denote a point in the spherical coordinate |
| UniqueCoefficientContainer | |
 Vacuum | Represent the vacuum |
