static public vtkAlgorithmOutput genFrustumCone(double total_dis, double end_radius,
double distance, bool is_reverse)
{
vtkConeSource cone = vtkConeSource.New();
cone.SetHeight(total_dis * 1.2);
cone.SetRadius(end_radius * 1.2);
cone.SetCenter(0, 0, total_dis * 0.4);
cone.SetResolution(80);
cone.SetDirection(0, 0, 1);
cone.Update();
vtkPlane plane = vtkPlane.New();
plane.SetOrigin(0, 0, 0);
plane.SetNormal(0, 0, 1);
vtkClipPolyData clipPolyData = vtkClipPolyData.New();
clipPolyData.SetInputConnection(cone.GetOutputPort());
clipPolyData.SetClipFunction(plane);
clipPolyData.GenerateClippedOutputOn();
clipPolyData.Update();
vtkPlane plane2 = vtkPlane.New();
plane2.SetOrigin(0, 0, distance);
plane2.SetNormal(0, 0, -1);
vtkClipPolyData clipPolyData2 = vtkClipPolyData.New();
clipPolyData2.SetInputConnection(clipPolyData.GetOutputPort());
clipPolyData2.SetClipFunction(plane2);
clipPolyData2.GenerateClippedOutputOn();
clipPolyData2.Update();
if (is_reverse)
{
vtkTransform transform = vtkTransform.New();
transform.RotateWXYZ(180, 0, 1, 0);
transform.Translate(0, 0, -distance);
vtkTransformPolyDataFilter transFilter = vtkTransformPolyDataFilter.New();
transFilter.SetInputConnection(clipPolyData2.GetOutputPort());
transFilter.SetTransform(transform); //use vtkTransform (or maybe vtkLinearTransform)
transFilter.Update();
return(transFilter.GetOutputPort());
}
return(clipPolyData2.GetOutputPort());
}
static public vtkProp3D genActor(List <GaussianCluster> data)
{
vtkProperty pro = new vtkProperty();
// 默认颜色
pro.SetColor(config.cone_color[0], config.cone_color[1],
config.cone_color[2]);
pro.SetOpacity(0.4);
vtkAppendPolyData polydata = vtkAppendPolyData.New();
for (int i = 1; i < data.Count; i++)
{
var cluster = data[i];
System.Windows.Forms.MessageBox.Show("cluster.start_radius:" + cluster.start_radius.ToString() +
"cluster.distance:" + cluster.distance.ToString() +
"cluster.is_foucs:" + cluster.is_foucs.ToString() +
"cluster.foucs_radius:" + cluster.foucs_radius.ToString());
vtkTransform transform = vtkTransform.New();
transform.Translate(cluster.coordinate.pos.x, cluster.coordinate.pos.y, cluster.coordinate.pos.z);
transform.RotateWXYZ(cluster.coordinate.rotate_theta, cluster.coordinate.rotate_axis.x,
cluster.coordinate.rotate_axis.y, cluster.coordinate.rotate_axis.z);
vtkTransformPolyDataFilter transFilter = vtkTransformPolyDataFilter.New();
transFilter.SetInputConnection(combiFrustumCone(cluster.start_radius,
1, cluster.angle, true, 0.01));
transFilter.SetTransform(transform);
transFilter.Update();
polydata.AddInputConnection(transFilter.GetOutputPort());
}
vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
mapper.SetInputConnection(polydata.GetOutputPort());
mapper.ScalarVisibilityOff();
// The actor links the data pipeline to the rendering subsystem
vtkActor actor = vtkActor.New();
actor.SetProperty(pro);
actor.SetMapper(mapper);
return(actor);
}
static public vtkAlgorithmOutput combiFrustumCone(double start_radius, double distance,
double angle, bool is_foucs, double foucs_radius)
{
double tanArc = Math.Tan(Math.PI * angle / 180);
double origin_dis = start_radius / tanArc;
if (is_foucs) // 缩小
{
double origin_foucs_dis = foucs_radius / tanArc;
double fouce_dis = origin_dis - origin_foucs_dis;
if (distance > fouce_dis) //缩小到焦点后放大
{
vtkAppendPolyData polydata = vtkAppendPolyData.New();
polydata.AddInputConnection(genFrustumCone(origin_dis, start_radius, fouce_dis, false));
vtkTransform transform = vtkTransform.New();
transform.Translate(0, 0, fouce_dis);
vtkTransformPolyDataFilter transFilter = vtkTransformPolyDataFilter.New();
origin_dis = origin_foucs_dis + distance - fouce_dis;
transFilter.SetInputConnection(genFrustumCone(origin_dis, origin_dis * tanArc, distance - fouce_dis, true));
transFilter.SetTransform(transform); //use vtkTransform (or maybe vtkLinearTransform)
transFilter.Update();
polydata.AddInputConnection(transFilter.GetOutputPort());
polydata.Update();
return(polydata.GetOutputPort());
}
else
{
return(genFrustumCone(origin_dis, start_radius, distance, false));
}
}
else // 放大
{
double total_dis = origin_dis + distance;
double end_radius = total_dis * tanArc;
return(genFrustumCone(total_dis, end_radius, distance, true));
}
}
static public vtkProp3D genCylinderActor(CompontData data, vtkProperty pro)
{
double r = data.param[0];
double h = data.param[1];
vtkCylinderSource cylinder = vtkCylinderSource.New();
cylinder.SetHeight(h);
cylinder.SetRadius(r);
cylinder.SetCenter(0, h / 2, 0);
cylinder.SetResolution(40);
cylinder.Update();
vtkTransform transform = vtkTransform.New();
transform.RotateWXYZ(90, 1, 0, 0);
vtkTransformPolyDataFilter transFilter = vtkTransformPolyDataFilter.New();
transFilter.SetInputConnection(cylinder.GetOutputPort());
transFilter.SetTransform(transform); //use vtkTransform (or maybe vtkLinearTransform)
transFilter.Update();
return(genUserActor(data, transFilter.GetOutputPort(), pro));
}
static public vtkProp3D genUserActor(CompontData data, vtkAlgorithmOutput vtkAlgorithmOutput,
vtkProperty pro)
{
vtkTransform transform = vtkTransform.New();
// 用户自定义平移旋转 (先移动后旋转)
transform.Translate(data.coor.pos.x, data.coor.pos.y, data.coor.pos.z);
transform.RotateWXYZ(data.coor.rotate_theta, data.coor.rotate_axis.x, data.coor.rotate_axis.y, data.coor.rotate_axis.z);
vtkTransformPolyDataFilter transFilter = vtkTransformPolyDataFilter.New();
transFilter.SetInputConnection(vtkAlgorithmOutput);
transFilter.SetTransform(transform); //use vtkTransform (or maybe vtkLinearTransform)
transFilter.Update();
//vtkShrinkPolyData shrink = vtkShrinkPolyData.New();
//shrink.SetInputConnection(transFilter.GetOutputPort());
//shrink.SetShrinkFactor(1);
// 改
//vtkSTLWriter writer = vtkSTLWriter.New();
//calPolyData(polyData, 0.01);
//writer.SetInputConnection(transFilter.GetOutputPort());
//writer.SetFileName("test.stl");
//writer.Update();
vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
mapper.SetInputConnection(transFilter.GetOutputPort());
mapper.ScalarVisibilityOff();
// The actor links the data pipeline to the rendering subsystem
vtkActor actor = vtkActor.New();
actor.SetProperty(pro);
actor.SetMapper(mapper);
return(actor);
}