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The concept Integrator_2 describes the set of requirements to be fulfilled by any function object used to instantiate the second template parameter of the class Stream_lines_2<VectorField_2,Integrator_2>. This concept provides the operation that integrates a new point from a given point with a predefined step, and according to a specified vector.
| Integrator_2::FT | |
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The scalar type.
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| Integrator_2::Point_2 | |
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The point type.
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| Integrator_2::Vector_2 | |
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The vector type.
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| Integrator_2::Vector_field_2 | |
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The vector field type.
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| Integrator_2 integ; | |
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only a default constructor is needed.
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| Point_2 | integ ( Point_2 p , Vector_field_2 vector_field_2 ) | |||
returns the new position from the actual position defined by p, according to the vector given by vector_field_2 at p.
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| Point_2 | integ ( Point_2 p , Vector_field_2 vector_field_2 , FT integration_step ) | |||
As above. The integration step is defined by integration_step.
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| Point_2 | integ ( Point_2 p , Vector_field_2 vector_field_2 , FT integration_step , bool direction ) | |||
As above. In addition, this function integrates forward if direction is true, and backward if it is false.
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