| 92 |  | DefineOptionalParameter(PrintPressureTensor, "printPressureTensor"); | 
| 93 |  | DefineOptionalParameter(ElectricField, "electricField"); | 
| 94 |  | DefineOptionalParameter(UniformField, "uniformField"); | 
| 95 | < | DefineOptionalParameter(UniformGradient, "uniformGradient"); | 
| 95 | > | DefineOptionalParameter(UniformGradientStrength, "uniformGradientStrength"); | 
| 96 | > | DefineOptionalParameter(UniformGradientDirection1, "uniformGradientDirection1"); | 
| 97 | > | DefineOptionalParameter(UniformGradientDirection2, "uniformGradientDirection2"); | 
| 98 |  | //DefineOptionalParameter(PeriodicField, "periodicField"); | 
| 99 |  | //DefineOptionalParameter(PeriodicFieldStrength, "periodicFieldStrength"); | 
| 100 |  |  |