CArrow.h

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/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          https://www.mrpt.org/                         |
   |                                                                        |
   | Copyright (c) 2005-2020, Individual contributors, see AUTHORS file     |
   | See: https://www.mrpt.org/Authors - All rights reserved.               |
   | Released under BSD License. See: https://www.mrpt.org/License          |
   +------------------------------------------------------------------------+ */
#pragma once

#include <mrpt/opengl/CRenderizableShaderTriangles.h>

namespace mrpt::opengl
{
/** A 3D arrow
 *  \sa opengl::COpenGLScene
 *
 *  <div align="center">
 *  <table border="0" cellspan="4" cellspacing="4" style="border-width: 1px;
 * border-style: solid;">
 *   <tr> <td> mrpt::opengl::CArrow </td> <td> \image html preview_CArrow.png
 * </td> </tr>
 *  </table>
 *  </div>
 * \ingroup mrpt_opengl_grp
 *
 */
class CArrow : public CRenderizableShaderTriangles
{
    DEFINE_SERIALIZABLE(CArrow, mrpt::opengl)
    DEFINE_SCHEMA_SERIALIZABLE()

   public:
    /** @name Renderizable shader API virtual methods
     * @{ */
    void onUpdateBuffers_Triangles() override;
    /** @} */

    void setArrowEnds(
        float x0, float y0, float z0, float x1, float y1, float z1)
    {
        m_x0 = x0;
        m_y0 = y0;
        m_z0 = z0;
        m_x1 = x1;
        m_y1 = y1;
        m_z1 = z1;
        CRenderizable::notifyChange();
    }
    void setHeadRatio(float rat)
    {
        m_headRatio = rat;
        CRenderizable::notifyChange();
    }
    void setSmallRadius(float rat)
    {
        m_smallRadius = rat;
        CRenderizable::notifyChange();
    }
    void setLargeRadius(float rat)
    {
        m_largeRadius = rat;
        CRenderizable::notifyChange();
    }
    /** Number of radial divisions  */
    inline void setSlicesCount(uint32_t slices)
    {
        m_slices = slices;
        CRenderizable::notifyChange();
    }

    /** Number of radial divisions  */
    inline uint32_t getSlicesCount() const { return m_slices; }

    void getBoundingBox(
        mrpt::math::TPoint3D& bb_min,
        mrpt::math::TPoint3D& bb_max) const override;

    /** Constructor */
    CArrow(
        float x0 = 0, float y0 = 0, float z0 = 0, float x1 = 1, float y1 = 1,
        float z1 = 1, float headRatio = 0.2f, float smallRadius = 0.05f,
        float largeRadius = 0.2f)
        : m_x0(x0),
          m_y0(y0),
          m_z0(z0),
          m_x1(x1),
          m_y1(y1),
          m_z1(z1),
          m_headRatio(headRatio),
          m_smallRadius(smallRadius),
          m_largeRadius(largeRadius)
    {
    }

    ~CArrow() override = default;

   protected:
    mutable float m_x0, m_y0, m_z0;
    mutable float m_x1, m_y1, m_z1;
    float m_headRatio;
    float m_smallRadius, m_largeRadius;
    /** Number of radial divisions. */
    uint32_t m_slices = 10;
};

}  // namespace mrpt::opengl