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Volume Cartographer 2.27.0
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Volume Cartographer 2.27.0
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Icosphere shape. More...
#include <vc/core/shapes/Sphere.hpp>
Public Member Functions | |
| Sphere (float radius=5, int recursion=2) | |
 Public Member Functions inherited from volcart::shapes::ShapePrimitive | |
| ITKMesh::Pointer | itkMesh () |
| Return the shape as an ITKMesh. | |
| vtkSmartPointer< vtkPolyData > | vtkMesh () |
| Return the shape as a vtkPolyData. | |
| PointSet< cv::Vec3d > | unorderedPoints () |
| Return the vertices as a PointSet. More... | |
| PointSet< cv::Vec6d > | unorderedPointNormal () |
| Return the vertices and vertex normals as a PointSet. More... | |
| std::vector< SimpleMesh::Vertex > | getPoints () const |
| Return the vertices as a list of SimpleMesh::Vertex. More... | |
| std::vector< SimpleMesh::Cell > | getCells () const |
| Return the faces as a list of volcart::Cell. More... | |
| OrderedPointSet< cv::Vec3d > | orderedPoints () |
| Return the vertices as an OrderedPointSet. More... | |
| OrderedPointSet< cv::Vec6d > | orderedPointNormal () |
| Return the vertices and vertex normals as an OrderedPointSet. More... | |
| bool | isOrdered () const |
| Return if the shape generator created ordered vertices. More... | |
| std::size_t | orderedWidth () const |
| Return the width of the ordered vertex set. More... | |
| std::size_t | orderedHeight () const |
| Return the height of the ordered vertex set. More... | |
Private Member Functions | |
| int | midpoint_ (int p1, int p2) |
| Compute and cache the midpoint between two vertices. | |
Private Attributes | |
| std::unordered_map< std::string, int > | indexCache_ |
| Vertex index cache. More... | |
Additional Inherited Members | |
| Protected Member Functions inherited from volcart::shapes::ShapePrimitive | |
| ShapePrimitive () | |
| void | addVertex_ (double x, double y, double z) |
| Add a new vertex to the shape. | |
| void | addCell_ (int v1, int v2, int v3) |
| Add a new triangular face to the mesh from vertex IDs. More... | |
| void | updateNormal_ (int vertID, double nx, double ny, double nz) |
| Update the normal of a vertex with a new normal component. More... | |
| Protected Attributes inherited from volcart::shapes::ShapePrimitive | |
| std::vector< SimpleMesh::Vertex > | points_ |
| std::vector< SimpleMesh::Cell > | cells_ |
| bool | ordered_ {false} |
| std::size_t | orderedWidth_ {0} |
| std::size_t | orderedHeight_ {0} |
Icosphere shape.
This class generates an approximation of a sphere as a polyhedron by recursively subdividing the triangles of an icosahedron.
The recursion level defines the "smoothness" of the sphere. An icosphere with recursion = 0 will have 20 triangular faces. Each additional level results in a 4x increase in the number of faces over the previous level. For a recursion level 
, the number of faces in the sphere will be 
.
The radius parameter is not currently used.
The shape will have a number of points equal to the number of faces in the sphere (see above) plus two. The points generated by this class are unordered.
This implementation is an adaptation of an implementation by Andreas Kahler.
Definition at line 40 of file Sphere.hpp.
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private |
Vertex index cache.
Keeps track of vertices that have already been created by subdividing an existing edge. Used to avoid creating duplicate vertices.
Definition at line 54 of file Sphere.hpp.
1.9.4