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add grid annotation

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This commit is contained in:
AndreaRigoni
2026-03-18 21:44:29 +00:00
parent cca29ef837
commit a9b66a4e12
1 changed files with 15 additions and 1 deletions
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16
src/Vtk/vtkViewport.cpp
View File

@@ -55,9 +55,12 @@ void Viewport::SetupPipeline(vtkRenderWindowInteractor* iren)
m_Annotation->GetTextProperty()->SetFontFamilyToArial(); m_Annotation->GetTextProperty()->SetFontFamilyToArial();
m_Annotation->GetTextProperty()->SetOpacity(0.5); m_Annotation->GetTextProperty()->SetOpacity(0.5);
m_Annotation->SetMaximumFontSize(10); m_Annotation->SetMaximumFontSize(10);
m_Annotation->SetText(0, "uLib VTK Viewer - OpenCMT all right reserved."); m_Annotation->SetText(0, "uLib VTK Viewer - OpenCMT viewer.");
m_Renderer->AddViewProp(m_Annotation); m_Renderer->AddViewProp(m_Annotation);
// right corner annotation
m_Annotation->SetText(1, "Grid: -");
// Orientation axes marker (bottom-left corner) // Orientation axes marker (bottom-left corner)
vtkNew<vtkAxesActor> axes; vtkNew<vtkAxesActor> axes;
m_Marker->SetInteractor(iren); m_Marker->SetInteractor(iren);
@@ -376,6 +379,17 @@ void Viewport::UpdateGrid()
if (m_OriginAxes) { if (m_OriginAxes) {
m_OriginAxes->SetScaleFactor(spacing); m_OriginAxes->SetScaleFactor(spacing);
} }
// Update annotation for grid size
char gridLabel[32];
if (spacing >= 1000.0) {
sprintf(gridLabel, "Grid: %.0f m", spacing / 1000.0);
} else if (spacing >= 10.0) {
sprintf(gridLabel, "Grid: %.0f cm", spacing / 10.0);
} else {
sprintf(gridLabel, "Grid: %.0f mm", spacing);
}
m_Annotation->SetText(1, gridLabel);
} }