[vtkusers] Axes: different colors

[Bill Lorensen]

You want to use vtkAxesActor.

You can control the properties of most of the components of the axes.

For example, this (derived from
http://vtk.org/Wiki/VTK/Examples/Cxx/GeometricObjects/Axes )
set the x axis color to white:
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkPolyData.h>
#include <vtkSphereSource.h>
#include <vtkAxesActor.h>
#include <vtkCaptionActor2D.h>
#include <vtkTextProperty.h>
#include <vtkProperty.h>
#include <vtkTransform.h>
#include <vtkSmartPointer.h>

int main (int, char*[])
{
  vtkSmartPointer<vtkSphereSource> sphereSource =
    vtkSmartPointer<vtkSphereSource>::New();
  sphereSource->SetCenter(0.0, 0.0, 0.0);
  sphereSource->SetRadius(0.5);

  //create a mapper
  vtkSmartPointer<vtkPolyDataMapper> sphereMapper =
    vtkSmartPointer<vtkPolyDataMapper>::New();
  sphereMapper->SetInputConnection(sphereSource->GetOutputPort());

  // create an actor
  vtkSmartPointer<vtkActor> sphereActor =
    vtkSmartPointer<vtkActor>::New();
  sphereActor->SetMapper(sphereMapper);

  // a renderer and render window
  vtkSmartPointer<vtkRenderer> renderer =
    vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renderWindow =
    vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->AddRenderer(renderer);

  // an interactor
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  renderWindowInteractor->SetRenderWindow(renderWindow);

  // add the actors to the scene
  renderer->AddActor(sphereActor);
  renderer->SetBackground(.1,.2,.3); // Background dark blue

  vtkSmartPointer<vtkTransform> transform =
    vtkSmartPointer<vtkTransform>::New();
  transform->Translate(1.0, 0.0, 0.0);

  vtkSmartPointer<vtkAxesActor> axes =
    vtkSmartPointer<vtkAxesActor>::New();

  // The axes are positioned with a user transform
  axes->SetUserTransform(transform);

  // properties of the axes labels can be set as follows
  // this sets the x axis label to red
  axes->GetXAxisShaftProperty()->SetColor(1,1,1);

  // the actual text of the axis label can be changed:
  // axes->SetXAxisLabelText("test");

  renderer->AddActor(axes);

  renderer->ResetCamera();
  renderWindow->Render();

  // begin mouse interaction
  renderWindowInteractor->Start();

  return EXIT_SUCCESS;
}



On Mon, Apr 8, 2013 at 10:09 AM, Sensei <senseiwa at gmail.com> wrote:

> On 4/8/13 4:04pm, Arnaud BARRE wrote:
>
>> Dear Sensei,
>>
>> Did you try the vtkAxesActor
>> (http://www.vtk.org/doc/**nightly/html/**classvtkAxesActor.html<http://www.vtk.org/doc/nightly/html/classvtkAxesActor.html>).
>> It creates
>> X/Y/Z axes with R/G/B colors.
>>
>> Arnaud
>>
>>
> Thanks, Arnaud, I actually use the class but it shows me just white axes,
> that's why I am asking this.
>
> The code I'm using is simple and probably wrong:
>
>     // Create axes
>     vtkSmartPointer<vtkAxisActor> axisActor =
> vtkSmartPointer<vtkAxisActor>:**:New();
>
>     // Setup renderer (always render axes)
>     vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::
> **New();
>     renderWindow->AddRenderer(**renderer);
>     renderer->AddActor(axisActor);
>     renderer->ResetCamera();
>     renderer->**GradientBackgroundOn();
>     renderer->SetBackground(1.0, 1.0, 1.0);
>     renderer->SetBackground(0.2, 0.5, 1.0);
>
>
> What am I doing wrong here?
>
>
> Thanks!
>
>
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-- 
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