Package com.openinventor.meshviz.data

Class PbTriangleMesh2D

  • All Implemented Interfaces:
    java.lang.Cloneable
    public class PbTriangleMesh2D
extends PbIndexedMesh2D
implements java.lang.Cloneable
    Defines a surface mesh of triangles. Class to define an indexed 2D mesh made up of triangles cells. This mesh is defined by a list of triangles. Each triangles is defined by 3 indices of nodes.

    The nodes coordinates are defined by 2 (or 3) arrays x_nod, y_nod, (and z_nod) of num_nodes floats. The triangles are defined by the array triangle_index of num_triangles*3 integers. triangle_index[(n*3)+p] is the p-th node index of the n-th triangle of the mesh (0 <= p <= 3).

    Each edge of a triangle may have 2 references in the mesh, that is, one edge is common to 2 triangles. The edges which are referred to once in the mesh define the limits of the mesh.

    The geometry of this mesh can be defined also from a points field. In this case the Voronoi method is used to build the triangle mesh.

    The values on the mesh nodes are defined by the PbMesh.addValuesSet(set_index,val) method, where val argument is an array of num_nodes floats.

    • Constructor Detail

      • PbTriangleMesh2D

        public PbTriangleMesh2D()
        Calls PbTriangleMesh2D(true).

      • PbTriangleMesh2D

        public PbTriangleMesh2D​(int num_nodes,
                        float[] x_nod,
                        float[] y_nod,
                        float[] z_nod,
                        int num_triangles,
                        int[] triangle_index)
        Calls PbTriangleMesh2D(num_nodes, x_nod, y_nod, z_nod, num_triangles, triangle_index, true).

      • PbTriangleMesh2D

        public PbTriangleMesh2D​(int num_nodes,
                        float[] x_nod,
                        float[] y_nod,
                        int num_triangles,
                        int[] triangle_index)
        Calls PbTriangleMesh2D(num_nodes, x_nod, y_nod, num_triangles, triangle_index, true).

      • PbTriangleMesh2D

        public PbTriangleMesh2D​(PbTriangleMesh2D mesh)
        Copy constructor.

      • PbTriangleMesh2D

        public PbTriangleMesh2D​(boolean isDataDuplicate)
        Constructor of a default simple mesh. See also PbMesh for more explanations about data duplication.

      • PbTriangleMesh2D

        public PbTriangleMesh2D​(int num_nodes,
                        float[] x_nod,
                        float[] y_nod,
                        int num_triangles,
                        int[] triangle_index,
                        boolean is_data_duplicate)
        Constructor of a 2D surface mesh. See also PbMesh for more explanations about data duplication.

      • PbTriangleMesh2D

        public PbTriangleMesh2D​(int num_nodes,
                        float[] x_nod,
                        float[] y_nod,
                        float[] z_nod,
                        int num_triangles,
                        int[] triangle_index,
                        boolean is_data_duplicate)
        Constructor of a 3D surface mesh. See also PbMesh for more explanations about data duplication.

    • Method Detail

      • setGeometry

        public void setGeometry​(int num_nodes,
                        float[] x_nod,
                        float[] y_nod,
                        float[] z_nod,
                        int num_triangles,
                        int[] triangle_index)
        Sets a new 3D geometry.

      • setGeometry

        public void setGeometry​(int numPoints,
                        float[] xPointsField,
                        float[] yPointsField)
        Set a new 2D geometry from a points field. The triangulation is realized by the DELAUNAY method.

      • setGeometry

        public void setGeometry​(int num_nodes,
                        float[] x_nod,
                        float[] y_nod,
                        int num_triangles,
                        int[] triangle_index)
        Sets a new 2D geometry.