实时绘制 VTK 点

Question

我想使用 VTK 库实时绘制一个点。不过，我在这样做时遇到了一个小问题。我的程序正在绘制该点，但在单击窗口控件之前我看不到它，该点表示磁电机的协调 x。

这是我的代码：

private void Pointdessinateur()
{
// Create the geometry of the points (the coordinate)
vtkPoints points = vtkPoints.New();
List<double> X = new List<double>(); // création de la liste
List<double> Y = new List<double>();
List<double> Z = new List<double>();
// Create topology of the points (a vertex per point)
vtkCellArray vertices = vtkCellArray.New();
int i = 0;
X.Add(XCnorm);
Y.Add(YCnorm);
Z.Add(ZCnorm);
int[] ids = new int[X.Count];
for (i = 0; i < X.Count; i++)
ids[i] = points.InsertNextPoint(X[i], Y[i], Z[i]);
int size = Marshal.SizeOf(typeof(int)) * X.Count;
IntPtr pIds = Marshal.AllocHGlobal(size);
Marshal.Copy(ids, 0, pIds, X.Count);
vertices.InsertNextCell(X.Count, pIds);
Marshal.FreeHGlobal(pIds);
// Create a polydata object
vtkPolyData pointPoly = vtkPolyData.New();
// Set the points and vertices we created as the geometry and topology of the polydata
pointPoly.SetPoints(points);
pointPoly.SetVerts(vertices);
// Visualize
vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
mapper.SetInput(pointPoly);
vtkActor actor = vtkActor.New();
actor.SetMapper(mapper);
actor.GetProperty().SetPointSize(3);
actor.GetProperty().SetColor(0.25, 0.0, 0.0);
vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow;
vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer();
renderer.AddActor(actor); 
}

Answer 1

问题解决。

我只是想在我的VTKRenderWindow上调用渲染

renderWindow.Render();