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polyline now uses scalars for color data (for reuse by other widgets)

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This commit is contained in:
Anatoly Baksheev 2014-01-07 21:32:54 +04:00
parent e94ee94be3
commit 771d9509a8
1 changed files with 12 additions and 1 deletions
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13
modules/viz/src/shapes.cpp
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@ -400,18 +400,29 @@ cv::viz::WPolyLine::WPolyLine(InputArray _points, const Color &color)
for(size_t i = 0; i < total; ++i)
cell_array->InsertCellPoint(i);
Vec3b rgb = Vec3d(color[2], color[1], color[0]);
Vec3b* color_data = new Vec3b[total];
std::fill(color_data, color_data + total, rgb);
vtkSmartPointer<vtkUnsignedCharArray> scalars = vtkSmartPointer<vtkUnsignedCharArray>::New();
scalars->SetName("Colors");
scalars->SetNumberOfComponents(3);
scalars->SetNumberOfTuples(total);
scalars->SetArray(color_data->val, total * 3, 0);
vtkSmartPointer<vtkPolyData> polydata = vtkSmartPointer<vtkPolyData>::New();
polydata->SetPoints(points);
polydata->SetLines(cell_array);
polydata->GetPointData()->SetScalars(scalars);
vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(polydata->GetProducerPort());
mapper->SetScalarRange(0, 255);
vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
actor->SetMapper(mapper);
WidgetAccessor::setProp(*this, actor);
setColor(color);
}
template<> cv::viz::WPolyLine cv::viz::Widget::cast<cv::viz::WPolyLine>()