Provides a container for a 2D Delaunay triangulation. More...
Public Member Functions | |
| procedure, public | create d2d_init |
| Creates an unconstrained 2D Delaunay triangulation given a set of x-y points. | |
| procedure, public | get_point_count d2d_get_pt_count |
| Gets the number of points in the triangulation. | |
| procedure, public | get_triangle_count d2d_get_tri_count |
| Gets the number of triangles in the triangulation. | |
| procedure, public | get_points_x d2d_get_x_pts |
| Gets the x-coordinates of each point. | |
| procedure, public | get_points_y d2d_get_y_pts |
| Gets the y-coordinates of each point. | |
| procedure, public | get_indices d2d_get_tris |
| Gets a list of the indices of each triangle vertex. | |
| procedure, public | find_triangle d2d_get_tri_with_pt |
| Finds the triangle that contains the specified point. | |
Public Attributes | |
| real(real64), dimension(:), allocatable | m_y |
| An array of the y-coordinates of each point. | |
| integer(int32), dimension(:,:), allocatable | m_indices |
| A 3-column matrix containing the indices of each triangle's vertex. | |
Private Attributes | |
| real(real64), dimension(:), allocatable | m_x |
| An array of the x-coordinates of each point. | |
Detailed Description
Provides a container for a 2D Delaunay triangulation.
- Remarks
- This type utilizes the GEOMPACK triangulation code available at https://people.sc.fsu.edu/~jburkardt/f77_src/geompack/geompack.html.
Definition at line 6765 of file fplot_core.f90.
Member Function/Subroutine Documentation
◆ create()
| procedure, public fplot_core::delaunay_tri_2d::create |
Creates an unconstrained 2D Delaunay triangulation given a set of x-y points.
- Syntax
- subroutine create(class(delaunay_tri_2d) this, real(real64) x(:), real(real64) y(:), class(errors) err)
- Parameters
-
[in,out] this The delaunay_tri_2d object. [in] x An N-element array containing the x-coordinates of each data point. [in] y An N-element array containing the y-coordinates of each data point. [in,out] err An optional errors-based object that if provided can be used to retrieve information relating to any errors encountered during execution. If not provided, a default implementation of the errors class is used internally to provide error handling. Possible errors and warning messages that may be encountered are as follows. - PLOT_ARRAY_SIZE_MISMATCH_ERROR: Occurs if the input arrays are not the same size.
- PLOT_OUT_OF_MEMORY_ERROR: Occurs if there is insufficient memory available.
Definition at line 6798 of file fplot_core.f90.
◆ find_triangle()
| procedure, public fplot_core::delaunay_tri_2d::find_triangle |
Finds the triangle that contains the specified point.
- Syntax
- integer(int32) function find_triangle(class(delaunay_tri_2d) this, real(real64) x, real(real64) y)
- Parameters
-
[in] this The delaunay_tri_2d object. [in] x The x-coordinate of the point. [in] y The y-coordinate of the point.
- Returns
- Returns the index of the triangle containing the specified point. If no triangle contains the specified point, a value of -1 is returned.
Definition at line 6864 of file fplot_core.f90.
◆ get_indices()
| procedure, public fplot_core::delaunay_tri_2d::get_indices |
Gets a list of the indices of each triangle vertex.
- Syntax
- integer(int32)(:,:) function get_indices(class(delaunay_tri_2d) this)
- Parameters
-
[in] this The delaunay_tri_2d object.
- Returns
- An N-by-3 matrix with each column containing the index of the vertex of each triangle where N is the number of triangles.
Definition at line 6849 of file fplot_core.f90.
◆ get_point_count()
| procedure, public fplot_core::delaunay_tri_2d::get_point_count |
Gets the number of points in the triangulation.
- Syntax
- integer(int32) function get_point_count(class(delaunay_tri_2d) this)
- Parameters
-
[in] this The delaunay_tri_2d object.
- Returns
- The number of points in the triangulation.
Definition at line 6808 of file fplot_core.f90.
◆ get_points_x()
| procedure, public fplot_core::delaunay_tri_2d::get_points_x |
Gets the x-coordinates of each point.
- Syntax
- real(real64)(:) function get_points_x(class(delaunay_tri_2d) this)
- Parameters
-
[in] this The delaunay_tri_2d object.
- Returns
- An array of the x-coordinates of each point.
Definition at line 6828 of file fplot_core.f90.
◆ get_points_y()
| procedure, public fplot_core::delaunay_tri_2d::get_points_y |
Gets the y-coordinates of each point.
- Syntax
- real(real64)(:) function get_points_y(class(delaunay_tri_2d) this)
- Parameters
-
[in] this The delaunay_tri_2d object.
- Returns
- An array of the y-coordinates of each point.
Definition at line 6838 of file fplot_core.f90.
◆ get_triangle_count()
| procedure, public fplot_core::delaunay_tri_2d::get_triangle_count |
Gets the number of triangles in the triangulation.
- Syntax
- integer(int32) function get_triangle_count(class(delaunay_tri_2d) this)
- Parameters
-
[in] this The delaunay_tri_2d object.
- Returns
- The number of triangles in the triangulation.
Definition at line 6818 of file fplot_core.f90.
Member Data Documentation
◆ m_indices
| integer(int32), dimension(:,:), allocatable fplot_core::delaunay_tri_2d::m_indices |
A 3-column matrix containing the indices of each triangle's vertex.
Definition at line 6773 of file fplot_core.f90.
◆ m_x
|
private |
An array of the x-coordinates of each point.
Definition at line 6768 of file fplot_core.f90.
◆ m_y
| real(real64), dimension(:), allocatable fplot_core::delaunay_tri_2d::m_y |
An array of the y-coordinates of each point.
Definition at line 6770 of file fplot_core.f90.
The documentation for this type was generated from the following file:
- D:/Code/fplot-1/src/fplot_core.f90
