viewer3D-11-extension.cpp

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#include <iostream>
 
#include "DGtal/base/Common.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/io/viewers/PolyscopeViewer.h"
 
using namespace std;
using namespace DGtal;
using namespace Z3i;
 
// Standard services - public :
 
struct RandomPointExtension : public PolyscopeViewer<>::Callback {
  void OnUI(void* viewerData) override {
    ((void) viewerData);
    static int count = 16;
    // Depending on the viewer, this may change
    ImGui::SliderInt("Number of points to draw", &count, 0, 32);
    if (ImGui::Button("Create points")) {
      for (int i = 0; i < count; ++i) {
        // Rand values from -10 to 10
        // Viewer is pointer to the viewer this extension is attached to
        *viewer << Point(rand() % 21 - 10, rand() % 21 - 10, rand() % 21 - 10);
      }
      // Ask viewer to render all data that were added
      viewer->renderNewData();
    }
  }
};
 
int main()
{
  Point p1( 0, 0, 0 );
  Point p2( 5, 5, 5 );
  Point p3( 2, 3, 4 );
 
  Domain domain( p1, p2 );
 
  KSpace K;
  K.init( p1, p2, true );
 
  PolyscopeViewer viewer(K);
  viewer.setCallback( new RandomPointExtension );
  viewer << domain;
  viewer << p1 << p2 << p3;
 
  viewer.show();
  return 0;
}
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