PolyLine widget implementation

modules/viz/include/opencv2/viz/widgets.hpp

@@ -106,6 +106,15 @@ namespace temp_viz
         CoordinateSystemWidget(double scale, const Affine3f& affine);
     };
     
+    class CV_EXPORTS PolyLineWidget : public Widget3D
+    {
+    public:
+        PolyLineWidget(InputArray _points, const Color &color = Color::white());
+        
+    private:
+        struct CopyImpl;
+    };
+    
     class CV_EXPORTS TextWidget : public Widget2D
     {
     public:
@@ -144,6 +153,7 @@ namespace temp_viz
     template<> CV_EXPORTS CircleWidget Widget::cast<CircleWidget>();
     template<> CV_EXPORTS CubeWidget Widget::cast<CubeWidget>();
     template<> CV_EXPORTS CoordinateSystemWidget Widget::cast<CoordinateSystemWidget>();
+    template<> CV_EXPORTS PolyLineWidget Widget::cast<PolyLineWidget>();
     template<> CV_EXPORTS TextWidget Widget::cast<TextWidget>();
     template<> CV_EXPORTS CloudWidget Widget::cast<CloudWidget>();
     template<> CV_EXPORTS CloudNormalsWidget Widget::cast<CloudNormalsWidget>();

modules/viz/src/simple_widgets.cpp

@@ -26,14 +26,14 @@ temp_viz::LineWidget::LineWidget(const Point3f &pt1, const Point3f &pt2, const C
 
 void temp_viz::LineWidget::setLineWidth(float line_width)
 {
-    vtkLODActor *actor = vtkLODActor::SafeDownCast(WidgetAccessor::getProp(*this));
+    vtkActor *actor = vtkActor::SafeDownCast(WidgetAccessor::getProp(*this));
     CV_Assert(actor);
     actor->GetProperty()->SetLineWidth(line_width);
 }
 
 float temp_viz::LineWidget::getLineWidth()
 {
-    vtkLODActor *actor = vtkLODActor::SafeDownCast(WidgetAccessor::getProp(*this));
+    vtkActor *actor = vtkActor::SafeDownCast(WidgetAccessor::getProp(*this));
     CV_Assert(actor);
     return actor->GetProperty()->GetLineWidth();
 }
@@ -342,6 +342,82 @@ template<> temp_viz::CoordinateSystemWidget temp_viz::Widget::cast<temp_viz::Coo
     return static_cast<CoordinateSystemWidget&>(widget);
 }
 
+///////////////////////////////////////////////////////////////////////////////////////////////
+/// polyline widget implementation
+
+struct temp_viz::PolyLineWidget::CopyImpl
+{    
+    template<typename _Tp>
+    static void copy(const Mat& source, Vec<_Tp, 3> *output, vtkSmartPointer<vtkPolyLine> polyLine)
+    {
+        int s_chs = source.channels();
+
+        for(int y = 0, id = 0; y < source.rows; ++y)
+        {
+            const _Tp* srow = source.ptr<_Tp>(y);
+
+            for(int x = 0; x < source.cols; ++x, srow += s_chs, ++id)
+            {
+                *output++ = Vec<_Tp, 3>(srow);
+                polyLine->GetPointIds()->SetId(id,id);
+            }
+        }
+    }
+};
+
+temp_viz::PolyLineWidget::PolyLineWidget(InputArray _pointData, const Color &color)
+{
+    Mat pointData = _pointData.getMat();
+    CV_Assert(pointData.type() == CV_32FC3 || pointData.type() == CV_32FC4 || pointData.type() == CV_64FC3 || pointData.type() == CV_64FC4);
+    vtkIdType nr_points = pointData.total();    
+    
+    vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New ();
+    vtkSmartPointer<vtkPolyData> polyData = vtkSmartPointer<vtkPolyData>::New ();
+    vtkSmartPointer<vtkPolyLine> polyLine = vtkSmartPointer<vtkPolyLine>::New ();
+    
+    if (pointData.depth() == CV_32F)
+        points->SetDataTypeToFloat();
+    else
+        points->SetDataTypeToDouble();
+    
+    points->SetNumberOfPoints(nr_points);
+    polyLine->GetPointIds()->SetNumberOfIds(nr_points);
+    
+    if (pointData.depth() == CV_32F)
+    {
+        // Get a pointer to the beginning of the data array
+        Vec3f *data_beg = vtkpoints_data<float>(points);
+        CopyImpl::copy(pointData, data_beg, polyLine);
+    }
+    else if (pointData.depth() == CV_64F)
+    {
+        // Get a pointer to the beginning of the data array
+        Vec3d *data_beg = vtkpoints_data<double>(points);
+        CopyImpl::copy(pointData, data_beg, polyLine);
+    }
+    
+    vtkSmartPointer<vtkCellArray> cells = vtkSmartPointer<vtkCellArray>::New();
+    cells->InsertNextCell(polyLine);
+    
+    polyData->SetPoints(points);
+    polyData->SetLines(cells);
+    
+    vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New();
+    mapper->SetInput(polyData);
+    
+    vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
+    actor->SetMapper(mapper);
+    
+    WidgetAccessor::setProp(*this, actor);
+    setColor(color);
+}
+
+template<> temp_viz::PolyLineWidget temp_viz::Widget::cast<temp_viz::PolyLineWidget>()
+{
+    Widget3D widget = this->cast<Widget3D>();
+    return static_cast<PolyLineWidget&>(widget);
+}
+
 ///////////////////////////////////////////////////////////////////////////////////////////////
 /// text widget implementation
 
@@ -399,8 +475,6 @@ struct temp_viz::CloudWidget::CreateCloudWidget
         vtkSmartPointer<vtkIdTypeArray> initcells;
         nr_points = cloud.total();
 
-        points = polydata->GetPoints ();
-
         if (!points)
         {
             points = vtkSmartPointer<vtkPoints>::New ();

modules/viz/test/test_viz3d.cpp

@@ -112,16 +112,32 @@ TEST(Viz_viz3d, accuracy)
     v.showWidget("coordinateSystem", csw);
 //     v.showWidget("text",tw);
 //     v.showWidget("pcw",pcw);
-    v.showWidget("pcw2",pcw2);
+//     v.showWidget("pcw2",pcw2);
     
-    temp_viz::LineWidget lw2 = lw;
+//     temp_viz::LineWidget lw2 = lw;
 //     v.showPointCloud("cld",cloud, colors);
     
     cv::Mat normals(cloud.size(), cloud.type(), cv::Scalar(0, 10, 0));
 
 //     v.addPointCloudNormals(cloud, normals, 100, 0.02, "n");
     temp_viz::CloudNormalsWidget cnw(cloud, normals);
-    v.showWidget("n", cnw);
+//     v.showWidget("n", cnw);
+    
+//     lw = v.getWidget("n").cast<temp_viz::LineWidget>();
+//     pw = v.getWidget("n").cast<temp_viz::PlaneWidget>();
+    
+    cv::Mat points(1, 4, CV_64FC4);
+    
+    cv::Vec4d* data = points.ptr<cv::Vec4d>();
+    data[0] = cv::Vec4d(0.0,0.0,0.0,0.0);
+    data[1] = cv::Vec4d(1.0,1.0,1.0,1.0);
+    data[2] = cv::Vec4d(0.0,2.0,0.0,0.0);
+    data[3] = cv::Vec4d(3.0,4.0,1.0,1.0);
+    points = points.reshape(0, 2);
+    
+    temp_viz::PolyLineWidget plw(points);
+    v.showWidget("polyline",plw);
+    lw = v.getWidget("polyline").cast<temp_viz::LineWidget>();
     
     while(!v.wasStopped())
     {
@@ -129,25 +145,25 @@ TEST(Viz_viz3d, accuracy)
         cv::Affine3f cloudPosition(angle_x, angle_y, angle_z, cv::Vec3f(pos_x, pos_y, pos_z));
         cv::Affine3f cloudPosition2(angle_x, angle_y, angle_z, cv::Vec3f(pos_x+0.2, pos_y+0.2, pos_z+0.2));
 
-        lw2.setColor(temp_viz::Color(col_blue, col_green, col_red));
-        lw.setLineWidth(lw.getLineWidth()+pos_x * 10);
+//         lw2.setColor(temp_viz::Color(col_blue, col_green, col_red));
+        lw.setLineWidth(pos_x * 10);
         
-        pw.setColor(temp_viz::Color(col_blue, col_green, col_red));
+        plw.setColor(temp_viz::Color(col_blue, col_green, col_red));
         
         sw.setPose(cloudPosition);
 //         pw.setPose(cloudPosition);
         aw.setPose(cloudPosition);
         cw.setPose(cloudPosition);
         cyw.setPose(cloudPosition);
-        lw.setPose(cloudPosition);
+//         lw.setPose(cloudPosition);
         cuw.setPose(cloudPosition);
 //         cnw.setPose(cloudPosition);
 //         v.showWidget("pcw",pcw, cloudPosition);
 //         v.showWidget("pcw2",pcw2, cloudPosition2);
 //         v.showWidget("plane", pw, cloudPosition);
         
-        v.setWidgetPose("n",cloudPosition);
-        v.setWidgetPose("pcw2", cloudPosition);
+//         v.setWidgetPose("n",cloudPosition);
+//         v.setWidgetPose("pcw2", cloudPosition);
         cnw.setColor(temp_viz::Color(col_blue, col_green, col_red));
         pcw2.setColor(temp_viz::Color(col_blue, col_green, col_red));