------------------------------------------------------------------------------
| 374 | |
| 375 | //------------------------------------------------------------------------------ |
| 376 | double vtkPlotHistogram2D::GetInputArrayValue(int x, int y, int z) |
| 377 | { |
| 378 | vtkDataArray* selectedArray = this->GetSelectedArray(); |
| 379 | if (!selectedArray) |
| 380 | { |
| 381 | vtkErrorMacro("Trying to get value while no array was selected."); |
| 382 | return std::nan(""); |
| 383 | } |
| 384 | |
| 385 | int coordinates[3] = { x, y, z }; |
| 386 | vtkIdType index = this->Input->GetTupleIndex(selectedArray, coordinates); |
| 387 | |
| 388 | if (index < 0) |
| 389 | { |
| 390 | // An error message was already generated by GetTupleIndex. |
| 391 | return std::nan(""); |
| 392 | } |
| 393 | |
| 394 | if (!this->TransferFunction) |
| 395 | { |
| 396 | vtkErrorMacro("Trying to get value while no transfer function was set."); |
| 397 | return std::nan(""); |
| 398 | } |
| 399 | |
| 400 | int vectorMode = this->TransferFunction->GetVectorMode(); |
| 401 | if (vtkPlotHistogram2D::CanComputeMagnitude(selectedArray) && |
| 402 | vectorMode == vtkScalarsToColors::VectorModes::MAGNITUDE) |
| 403 | { |
| 404 | return this->MagnitudeArray->GetTuple1(index); |
| 405 | } |
| 406 | |
| 407 | int vectorComponent = this->TransferFunction->GetVectorComponent(); |
| 408 | return selectedArray->GetComponent(index, vectorComponent); |
| 409 | } |
| 410 | |
| 411 | //------------------------------------------------------------------------------ |
| 412 | bool vtkPlotHistogram2D::CanComputeMagnitude(vtkDataArray* array) |
no test coverage detected