interactive-track-and-trace/vtk/src/helperClasses/SpawnPointCallback.cpp

72 lines
2.2 KiB
C++

#include "SpawnPointCallback.h"
#include <vtkVertex.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkSmartPointer.h>
#include <vtkCommand.h>
#include <vtkRenderWindow.h>
void convertDisplayToWorld(vtkRenderer* renderer, int x, int y, double *worldPos) {
double displayPos[3] = {static_cast<double>(x), static_cast<double>(y), 0.0};
renderer->SetDisplayPoint(displayPos);
renderer->DisplayToWorld();
renderer->GetWorldPoint(worldPos);
}
void SpawnPointCallback::Execute(vtkObject *caller, unsigned long evId, void *callData) {
// Note the use of reinterpret_cast to cast the caller to the expected type.
auto interactor = reinterpret_cast<vtkRenderWindowInteractor *>(caller);
if (evId == vtkCommand::LeftButtonPressEvent) {
dragging = true;
}
if (evId == vtkCommand::LeftButtonReleaseEvent) {
dragging = false;
}
if (!dragging) {
return;
}
int x, y;
interactor->GetEventPosition(x, y);
double worldPos[4] = {2, 0 ,0, 0};
double displayPos[3] = {static_cast<double>(x), static_cast<double>(y), 0.0};
ren->SetDisplayPoint(displayPos);
ren->DisplayToWorld();
ren->GetWorldPoint(worldPos);
cout << "clicked on lon = " << worldPos[0] << " and lat = " << worldPos[1] << endl;
vtkIdType id = points->InsertNextPoint(worldPos[0], worldPos[1], 0);
data->SetPoints(points);
vtkSmartPointer<vtkVertex> vertex = vtkSmartPointer<vtkVertex>::New();
vertex->GetPointIds()->SetId(0, id);
vtkSmartPointer<vtkCellArray> vertices = vtkSmartPointer<vtkCellArray>::New();
vertices->InsertNextCell(vertex);
data->SetVerts(vertices);
// data->Modified(); // These might be needed im not sure.
// ren->GetRenderWindow()->Render();
}
SpawnPointCallback::SpawnPointCallback() : data(nullptr), points(nullptr) {}
SpawnPointCallback *SpawnPointCallback::New() {
return new SpawnPointCallback;
}
void SpawnPointCallback::setData(const vtkSmartPointer<vtkPolyData> &data) {
this->data = data;
}
void SpawnPointCallback::setPoints(const vtkSmartPointer<vtkPoints> &points) {
this->points = points;
}
void SpawnPointCallback::setRen(const vtkSmartPointer<vtkRenderer> &ren) {
this->ren = ren;
}