Hey all,
I’m working on a VR program, and when I try to compile it I get the following error:
Cannot open include file: ‘vtkEventData.h’; no such file or directory.
What could be issue here?
By “VR” do you mean volume rendering or virtual reality? Do you have a vtkEventData.h somewhere in your VTK source folder? Which file is being compiled when you get this error? Can you copy-paste here the complete error message?
Hello Andras. Sorry, after re-reading my post I realized I wasn’t too clear.
Yes, by VR I mean virtual reality. I do have the vtkEventData.h in my VTK source folder, which is - D:\VTK\VTK-8.2.0\Common\Core
The error appears when I try to compile the CylinderExample.cxx that I got from the VTK examples page
https://lorensen.github.io/VTKExamples/site/Cxx/GeometricObjects/CylinderExample/
I modified this code in order to view this cylinder in a HTC Vive device.
Heres the code:
#include <vtkActor.h>
#include <vtkCamera.h>
#include <vtkCylinderSource.h>
#include <vtkNamedColors.h>
#include <vtkPolyDataMapper.h>
#include <vtkProperty.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkSmartPointer.h>
#include <vtkOpenVRRenderWindow.h>
#include <vtkOpenVRRenderer.h>
#include <vtkOpenVRRenderWindowInteractor.h>
#include <vtkOpenVRCamera.h>
#include <array>
int main(int, char *[]) {
vtkSmartPointer<vtkNamedColors> colors =
vtkSmartPointer<vtkNamedColors>::New();
// Set the background color.
std::array<unsigned char, 4> bkg{{26, 51, 102, 255}};
colors->SetColor("BkgColor", bkg.data());
// This creates a polygonal cylinder model with eight circumferential facets
// (i.e, in practice an octagonal prism).
vtkSmartPointer<vtkCylinderSource> cylinder =
vtkSmartPointer<vtkCylinderSource>::New();
cylinder->SetResolution(8);
// The mapper is responsible for pushing the geometry into the graphics
// library. It may also do color mapping, if scalars or other attributes are
// defined.
vtkSmartPointer<vtkPolyDataMapper> cylinderMapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
cylinderMapper->SetInputConnection(cylinder->GetOutputPort());
// The actor is a grouping mechanism: besides the geometry (mapper), it
// also has a property, transformation matrix, and/or texture map.
// Here we set its color and rotate it around the X and Y axes.
vtkSmartPointer<vtkActor> cylinderActor = vtkSmartPointer<vtkActor>::New();
cylinderActor->SetMapper(cylinderMapper);
cylinderActor->GetProperty()->SetColor(
colors->GetColor4d("Tomato").GetData());
cylinderActor->RotateX(30.0);
cylinderActor->RotateY(-45.0);
// The renderer generates the image
// which is then displayed on the render window.
// It can be thought of as a scene to which the actor is added
vtkSmartPointer<vtkOpenVRRenderer> renderer = vtkSmartPointer<vtkOpenVRRenderer>::New();
renderer->AddActor(cylinderActor);
renderer->SetBackground(colors->GetColor3d("BkgColor").GetData());
// Zoom in a little by accessing the camera and invoking its "Zoom" method.
vtkNew<vtkOpenVRCamera> cam;
renderer->SetActiveCamera(cam);
// The render window is the actual GUI window
// that appears on the computer screen
vtkSmartPointer<vtkOpenVRRenderWindow> renderWindow =
vtkSmartPointer<vtkOpenVRRenderWindow>::New();
renderWindow->SetSize(300, 300);
renderWindow->AddRenderer(renderer);
renderWindow->SetWindowName("Cylinder");
// The render window interactor captures mouse events
// and will perform appropriate camera or actor manipulation
// depending on the nature of the events.
vtkSmartPointer<vtkOpenVRRenderWindowInteractor> renderWindowInteractor =
vtkSmartPointer<vtkOpenVRRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
// This starts the event loop and as a side effect causes an initial render.
renderWindow->Render();
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
And here’s the error I get when I try to compile:
E1696 cannot open source file "vtkEventData.h"
C1083 cannot open include file: ‘vtkEventData.h’; no such file or directory.
Is this master or 8.2?
Hello Ben. This is 8.2.
OK, this was fixed on master, but 8.2 didn’t have it.