CGAL 4.7 - 2D Placement of Streamlines: CGAL::Triangular_field_2< StreamLinesTraits_2 > Class Template Reference

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CGAL 4.7 - 2D Placement of Streamlines

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CGAL::Triangular_field_2< StreamLinesTraits_2 > Class Template Reference
2D Placement of Streamlines Reference

`#include <CGAL/Triangular_field_2.h>`

## Definition

This class provides a vector field specified by a set of sample points defined on a triangulated domain.

All sample points are inserted to a Delaunay triangulation, and for each point `p` in the domain located in a face `f`, its vector value is interpolated from the vertices of the face `f`.

Template Parameters

  StreamLinesTraits_2 | has to be instantiated by a model of the concept `StreamLinesTraits_2`.

Is Model Of:
  `VectorField_2`

See Also
  `Regular_grid_2<StreamLinesTraits_2>`

Examples:
  Stream_lines_2/stl_triangular_field.cpp.

## Types

typedef StreamLinesTraits_2::FT | FT
| the scalar type.
typedef StreamLinesTraits_2::Point_2 | Point_2
| the point type.
typedef StreamLinesTraits_2::Vector_2 | Vector_2
| the vector type.

## Creation

mplate< class PointIterator1, class VectorInputIterator > | Triangular_field_2 (PointInputIterator first_point, PointInputIterator last_point, VectorInputIterator first_vector)
| Defines the points in the range `[first_point, last_point)` as the sample points of the triangular field, with the corresponding number of vectors started at `first_vector`. More...

## Constructor & Destructor Documentation

template<typename StreamLinesTraits_2 >

mplate<class PointIterator1, class VectorInputIterator> CGAL::Triangular_field_2< StreamLinesTraits_2 >::Triangular_field_2 | ( | PointInputIterator | first_point,
|  | PointInputIterator | last_point,
|  | VectorInputIterator | first_vector
| ) |  |

Defines the points in the range `[first_point, last_point)` as the sample points of the triangular field, with the corresponding number of vectors started at `first_vector`.

Template Parameters

  PointInputIterator | must be an input iterator with the value type `Point_2`.
  VectorInputIterator | must be an input iterator with the value type `Vector_2`.