public ExtruedActor(ModelType type, ModelingBaseInfo baseinfo)
{
m_modelType = type;
m_modelBaseInfo = baseinfo;
vtkPolyData polydata = ModelingFactory.CreateModelingInstance(type, baseinfo);
ConstructActor(polydata);
}
public static vtkActor CreateBulletInstance(ModelType type, ModelingBaseInfo info)
{//根据传入参数来创建不同的弹体
vtkActor actor = vtkActor.New();
try
{
switch (type)
{
case ModelType.FULL_DEGREE_2D:
{
vtkPolyData polyData = GetBulletSection(info, SECTIONTYPE.SECTION_FULL); //获取整个截面
actor = FormActor2D(polyData, info);
}
break;
case ModelType.HALF_DEGREE_2D:
{
vtkPolyData polyData = GetBulletSection(info, SECTIONTYPE.SECTION_HALF); //获取一半的截面
actor = FormActor2D(polyData, info);
}
break;
case ModelType.DEGREE_360_3D:
{ //对截面映射360度,旋转平移
vtkPolyData polyData = GetBulletSection(info, SECTIONTYPE.SECTION_HALF); //获取一半的截面
actor = FormActor3D(360, polyData, info);
}
break;
case ModelType.DEGREE_180_3D:
{ //对截面映射180度
vtkPolyData polyData = GetBulletSection(info, SECTIONTYPE.SECTION_HALF); //获取一半的截面
actor = FormActor3D(180, polyData, info);
}
break;
case ModelType.DEGREE_90_3D:
{ //对截面映射90度
vtkPolyData polyData = GetBulletSection(info, SECTIONTYPE.SECTION_HALF); //获取一半的截面
actor = FormActor3D(90, polyData, info);
}
break;
default: break;
}
//
//vtkPolyDataMapper mapper = (vtkPolyDataMapper)actor.GetMapper();
//vtkPolyData polyd = mapper.GetInput();
//vtkPoints points = polyd.GetPoints();
}
catch (Exception e)
{
TinyFem.Utils.Logger.WriteLogMessage("BulletFactory:CreateBulletInstance:" + e.Message);
}
return(actor);
}
/// <summary>
/// 进行三维结构的转换
/// </summary>
/// <param name="degree"></param>
/// <param name="polyData"></param>
/// <param name="info"></param>
/// <returns></returns>
private static vtkActor FormActor3D(float degree, vtkPolyData polyData, ModelingBaseInfo info)
{//旋转拉伸一个截面, 先绕Z拉伸后旋转一定攻角，再平移
vtkActor actor = vtkActor.New();
vtkPolyData polydata = Extrude3DSection(degree, polyData, info);
vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
mapper.SetInput(polyData);
actor.SetMapper(mapper);
return(actor);
}
/// <summary>
/// 进行2D转换
/// </summary>
/// <param name="polyData"></param>
/// <param name="info"></param>
/// <returns></returns>
private static vtkPolyData Extrude2DSection(vtkPolyData polyData, ModelingBaseInfo info)
{
vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
vtkTransformFilter transFilter = vtkTransformFilter.New();
vtkTransform transform = vtkTransform.New();
transform.RotateX(-90); // 旋转到xoy面上
transform.RotateY(info.Angle); //顺时针为正逆时针为负
// transform.Translate(info.BaseCoordinate.X, info.BaseCoordinate.Y, info.BaseCoordinate.Z);//先旋转后平移
transform.Translate(info.BaseCoordinate.X, info.BaseCoordinate.Z, info.BaseCoordinate.Y); //先旋转后平移
transFilter.SetTransform(transform);
transFilter.SetInput(polyData);
return(transFilter.GetPolyDataOutput());
}
/// <summary>
/// 创建模型实例的数据信息
/// </summary>
/// <param name="type"></param>
/// <param name="info"></param>
/// <returns></returns>
public static vtkPolyData CreateModelingInstance(ModelType type, ModelingBaseInfo info)
{
vtkPolyData resultPolyData = new vtkPolyData();
switch (type)
{
case ModelType.FULL_DEGREE_2D:
{
vtkPolyData polyData = GetBulletSection(info, SECTIONTYPE.SECTION_FULL); //获取整个截面
resultPolyData = Extrude2DSection(polyData, info);
}
break;
case ModelType.HALF_DEGREE_2D:
{
vtkPolyData polyData = GetBulletSection(info, SECTIONTYPE.SECTION_HALF); //获取一半的截面
resultPolyData = Extrude2DSection(polyData, info);
}
break;
case ModelType.DEGREE_360_3D:
{ //对截面映射360度,旋转平移
vtkPolyData polyData = GetBulletSection(info, SECTIONTYPE.SECTION_HALF);
resultPolyData = Extrude3DSection(360, polyData, info);
}
break;
case ModelType.DEGREE_180_3D:
{ //对截面映射180度
vtkPolyData polyData = GetBulletSection(info, SECTIONTYPE.SECTION_HALF);
resultPolyData = Extrude3DSection(180, polyData, info);
}
break;
case ModelType.DEGREE_90_3D:
{ //对截面映射90度
vtkPolyData polyData = GetBulletSection(info, SECTIONTYPE.SECTION_HALF);
resultPolyData = Extrude3DSection(90, polyData, info);
}
break;
default:
break;
}
return(resultPolyData);
}
/// <summary>
/// 获取弹体截面的一半形状
/// </summary>
/// <returns></returns>
private static vtkPolyData GetBulletSection(ModelingBaseInfo info, SECTIONTYPE reflect)
{//传入弹体参数，返回截面，该截面在ZOY面上
vtkPolyData polyData = vtkPolyData.New();
vtkPoints points = vtkPoints.New();
vtkPolygon polygon = vtkPolygon.New();
// 获取截面 点和拓扑结构
ProcessBulletInfo(info, ref points, ref polygon, reflect);
vtkCellArray cellArray = vtkCellArray.New();
cellArray.InsertNextCell(polygon);
polyData.SetPoints(points);
polyData.SetPolys(cellArray);// 形成半个多边形
return(polyData);
}
/// <summary>
/// 处理弹体信息，根据基本几何建模信息构造polygon（先找出边界点，再放入vtkPolygon中)
/// </summary>
/// <param name="info"></param>
/// <param name="points"></param>
/// <param name="polygon"></param>
/// <param name="reflcet"></param>
private static void ProcessBulletInfo(ModelingBaseInfo info, ref vtkPoints points, ref vtkPolygon polygon, SECTIONTYPE reflcet)
{
points = GetHalfEdgePoint(info);
int numpoints;
if (reflcet == SECTIONTYPE.SECTION_HALF)
{// 如果不做镜像
numpoints = points.GetNumberOfPoints();
}
else
{//如果做镜像,将点的个数增加一倍
points = ReflectPointsByXOZ(points);
numpoints = points.GetNumberOfPoints();
}
polygon.GetPointIds().SetNumberOfIds(numpoints);
for (int i = 0; i < numpoints; i++)
{
polygon.GetPointIds().SetId(i, i);
}
}
/// <summary>
/// 得到边界点,（通过建模几何参数得到边界关键点）
/// </summary>
/// <param name="info"></param>
/// <returns></returns>
private static vtkPoints GetHalfEdgePoint(ModelingBaseInfo info)
{// 获取一半模型的点坐标
vtkPoints points = vtkPoints.New();
if (info is CylinderBulletInfo)
{// 如果为圆柱形弹体
CylinderBulletInfo cylinderInof = (CylinderBulletInfo)info;
points.InsertNextPoint(0, 0, 0);
points.InsertNextPoint(cylinderInof.Diameter / 2, 0, 0);
points.InsertNextPoint(cylinderInof.Diameter / 2, 0, cylinderInof.Height);
points.InsertNextPoint(0, 0, cylinderInof.Height);
}
else if (info is ConeBulletInfo)
{ //如果是锥形弹体
ConeBulletInfo coneInfo = (ConeBulletInfo)info;
points.InsertNextPoint(0, 0, 0); //在XZ面上建立剖面
points.InsertNextPoint(coneInfo.Diameter / 2, 0, coneInfo.WarHeadHeight);
points.InsertNextPoint(coneInfo.Diameter / 2, 0, coneInfo.Height);
points.InsertNextPoint(0, 0, coneInfo.Height);
}
else if (info is OgivalBulletInfo)
{//如果是圆顶形弹体
}
else if (info is RoundTargetInfo)
{// 如果是圆形靶体
RoundTargetInfo RoundInfo = (RoundTargetInfo)info;
points.InsertNextPoint(0, 0, 0);
points.InsertNextPoint(RoundInfo.Radius, 0, 0);
points.InsertNextPoint(RoundInfo.Radius, 0, RoundInfo.Thickness);
points.InsertNextPoint(0, 0, RoundInfo.Thickness);
}
else if (info is RectTargetInfo)
{//如果是矩形靶体
RectTargetInfo RectInfo = (RectTargetInfo)info;
points.InsertNextPoint(0, 0, 0);
points.InsertNextPoint(RectInfo.Width / 2, 0, 0);
points.InsertNextPoint(RectInfo.Width / 2, 0, RectInfo.Thickness);
points.InsertNextPoint(0, 0, RectInfo.Thickness);
}
return(points);
}
/// <summary>
/// 进行二维结构的转换
/// </summary>
/// <param name="polyData"></param>
/// <param name="info"></param>
/// <returns></returns>
private static vtkActor FormActor2D(vtkPolyData polyData, ModelingBaseInfo info)
{//
vtkActor actor = vtkActor.New();
vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
vtkTransformFilter transFilter = vtkTransformFilter.New();
vtkTransform transform = vtkTransform.New();
transform.RotateX(-90); // 旋转到xoy面上
transform.RotateY(info.Angle); //顺时针为正逆时针为负
transform.Translate(info.BaseCoordinate.X, info.BaseCoordinate.Y, info.BaseCoordinate.Z); //先旋转后平移
// transform.Translate(info.BaseCoordinate.X, info.BaseCoordinate.Z,info.BaseCoordinate.Y );//先旋转后平移
transFilter.SetTransform(transform);
transFilter.SetInput(polyData);
mapper.SetInputConnection(transFilter.GetOutputPort());
actor.SetMapper(mapper);
return(actor);
}
/// <summary>
/// 进行三维结构的转换
/// </summary>
/// <param name="degree"></param>
/// <param name="polyData"></param>
/// <param name="info"></param>
/// <returns></returns>
private static vtkPolyData Extrude3DSection(float degree, vtkPolyData polyData, ModelingBaseInfo info)
{
//进行拉伸以构造的三维实体
vtkRotationalExtrusionFilter extrude = vtkRotationalExtrusionFilter.New();
extrude.SetInput(polyData);
extrude.SetResolution(80);
extrude.SetAngle(degree);//旋转
extrude.CappingOn();
vtkPolyDataNormals normals = vtkPolyDataNormals.New();
normals.SetInput(extrude.GetOutput());
normals.SetFeatureAngle(100);
//进行转换
vtkTransform transform = vtkTransform.New();
transform.RotateX(info.Angle); //逆时针为正，顺时针为负
transform.Translate(info.BaseCoordinate.X, info.BaseCoordinate.Y, info.BaseCoordinate.Z); //先旋转后平移
vtkTransformFilter transFilter = vtkTransformFilter.New();
transFilter.SetTransform(transform);
transFilter.SetInput(normals.GetOutput());
//vtkTriangleFilter filter = vtkTriangleFilter.New();
//filter.SetInput(transFilter.GetOutput());
//return filter.GetPolyDataInput(0);
vtkCleanPolyData clearPolydata = vtkCleanPolyData.New();//清除重合的点和片
clearPolydata.SetInput(transFilter.GetOutput());
return(clearPolydata.GetOutput());
//return transFilter.GetPolyDataOutput();
}
