IShape3D.cpp File Reference

Implements default methods of interface IShape3D. More...

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Functions
std::vector< kvector_t >	EllipseVertices (double r_x, double r_y, double z)
	Generate vertices of centered ellipse with given semi-axes at height z. More...
std::vector< kvector_t >	RectangleVertices (double length, double width, double z)
	Helper functions to construct lists of vertices. More...

Detailed Description

Implements default methods of interface IShape3D.

Homepage:\n http://www.bornagainproject.org

License:\n GNU General Public License v3 or higher (see COPYING)

Copyright

Forschungszentrum Jülich GmbH 2018

Authors

Scientific Computing Group at MLZ (see CITATION, AUTHORS)

Definition in file IShape3D.cpp.

Function Documentation

EllipseVertices()

std::vector<kvector_t> EllipseVertices	(	double	r_x,
		double	r_y,
		double	z
	)

Generate vertices of centered ellipse with given semi-axes at height z.

Definition at line 37 of file IShape3D.cpp.

{
    static constexpr double delta_angle = 2.0 * M_PI / IShape3D::N_Circle;
    std::vector<kvector_t> result(IShape3D::N_Circle);
    for (size_t i = 0; i < IShape3D::N_Circle; ++i) {
        double angle = i * delta_angle;
        double x = r_x * std::cos(angle);
        double y = r_y * std::sin(angle);
        result[i] = kvector_t(x, y, z);
    }
    return result;
}

References M_PI, and IShape3D::N_Circle.

Referenced by DoubleEllipse::DoubleEllipse(), and TruncatedEllipsoid::TruncatedEllipsoid().

RectangleVertices()

std::vector<kvector_t> RectangleVertices	(	double	length,
		double	width,
		double	z
	)

Helper functions to construct lists of vertices.

Generate vertices of centered rectangle at height z

Definition at line 28 of file IShape3D.cpp.

{
    std::vector<kvector_t> result = {{length / 2.0, width / 2.0, z},
                                     {-length / 2.0, width / 2.0, z},
                                     {-length / 2.0, -width / 2.0, z},
                                     {length / 2.0, -width / 2.0, z}};
    return result;
}

Referenced by Box::Box().