# cee::geo::DataIndexedTriangles

class `DataIndexedTriangles` : public Data

  Data structure representing indexed triangles data for a geometry part

  Each triangle is defined by three connectivity indices into the vertices array. The created data will have `indices.size()/3` triangles.

  See also

  GeometryModel, Part, Data, DataTriangleFan, and DataTriangleStrip

  Public Functions

  `DataIndexedTriangles`()

    Constructs an empty data object.

  `DataIndexedTriangles`(const std::vector<Vec3d> &vertices, const std::vector<unsigned int> &indices)

    Constructs triangle data defined by an array of vertices and an array of connectivity indices.

    Each triangle is defined by three indices. The created data will have `indices.size()/3` triangles.

        // Triangle vertices and indices
        std::vector<cee::Vec3d> triangleVertices;
        triangleVertices.push_back(cee::Vec3d(0.0, 0.0, 2.0));
        triangleVertices.push_back(cee::Vec3d(2.0, 0.0, 2.0));
        triangleVertices.push_back(cee::Vec3d(1.0, 0.0, 3.0));
        std::vector<unsigned int> triangleIndices = { 0, 1, 2 };

        // Create a triangle data part using the vertices and connectivities
        cee::PtrRef<cee::geo::DataIndexedTriangles> triangleDataPart = new cee::geo::DataIndexedTriangles(triangleVertices, triangleIndices);

  virtual Type `type`() const

    Returns Data::INDEXED_TRIANGLES.

  virtual BoundingBox `boundingBox`() const

    Returns the bounding box of the part data.

  std::vector<Vec3d> `vertices`() const

    Returns array of vertices used to define the triangles.

    See also

    setVertices

  void `setVertices`(const std::vector<Vec3d> &vertices)

    Sets vertices for all the triangles.

    See also

    vertices

  std::vector<unsigned int> `indices`() const

    Returns the array of connectivity indices used to tell which coordinates to build up the each triangle.

    Each triangle is defined by three indices. The data will have `indices.size()/3` triangles.

    See also

    setIndices

  void `setIndices`(const std::vector<unsigned int> &indices)

    Sets connectivity indices used to tell which coordinates to build up each triangle.

    The array must contain 3 indices per triangle.

    See also

    indices

  size_t `triangleCount`() const

    Returns number of triangles in this data object.

  void `removeAll`()

    Clears all data.

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