scl::topology::cone Class Reference

#include <cone.h>

Inheritance diagram for scl::topology::cone:

Public Member Functions
	cone (const vec3 &A, float R1, const vec3 &B, float R2, int Slices)
	~cone () override=default
Public Member Functions inherited from scl::topology::grid
int	GetWidth () const
int	GetHeight () const
	grid (int Width, int Height)
	~grid () override=default
Public Member Functions inherited from scl::topology::basis< vertex >
const mesh_type	GetType () const
const std::vector< vertex >	GetVertices () const
const std::vector< u32 >	GetIndices () const
const vec3 &	GetBoundMin () const
const vec3 &	GetBoundMax () const
std::vector< vertex >::const_iterator	cbegin () const
std::vector< vertex >::const_iterator	cend () const
	basis (mesh_type MeshType)
	basis (mesh_type MeshType, const std::vector< vertex > &Vertices, const std::vector< u32 > &Indices)
	basis (mesh_type MeshType, std::vector< vertex > &&Vertices, std::vector< u32 > &&Indices)
virtual	~basis ()=default

Additional Inherited Members
Public Attributes inherited from scl::topology::basis< vertex >
mesh_type	MeshType
std::vector< vertex >	Vertices
std::vector< u32 >	Indices
vec3	Min
vec3	Max

Detailed Description

Topology cone object class.

Definition at line 16 of file cone.h.

Constructor & Destructor Documentation

cone()

scl::topology::cone::cone	(	const vec3 &	A,
		float	R1,
		const vec3 &	B,
		float	R2,
		int	Slices
	)

• Topology cone object class contructor.

Parameters

A	- cone bottom base middle point.
R1	- cone bottmo base cone
B	- cone top base middle point.
R2	- cone top base middle point.
Slices	- mesh slices count.

Definition at line 12 of file cone.cpp.

                                                                                  :
    grid(1, Slices)
{
    float height       = (A - B).Length();
    vec3 height_dir    = (A - B).Normalized();
    vec3 height_dir_90 = vec3 { -height_dir.Y, height_dir.X, height_dir.Z };
    vec3 guide         = height_dir_90 - height_dir;
    float cos_alpha    = height_dir_90.Dot(guide);
    float sin_alpha    = sqrt(1 - cos_alpha * cos_alpha);
    vec3 normal        = vec3(cos_alpha, sin_alpha, 0).Normalized();
 
    for (int i = 0; i <= Slices; i++)
    {
        float t        = (float)i / Slices;
        float phi      = 360 * t;
        float x        = sin(phi);
        float z        = cos(phi);
        matr4 rotation = matr4::Rotate(height_dir, phi);
        vec3 normal = rotation.TransformVector(normal);
        vec3 tangent = vec3 { z, 0, -x };
        vec3 bitangent = tangent.Cross(normal);
 
        Vertices.emplace_back(
            A + rotation.TransformVector(height_dir_90 * R1),
            normal, tangent, bitangent, vec2 { t, 0 }
        );
        Vertices.emplace_back(
            B + rotation.TransformVector(height_dir_90 * R2),
            normal, tangent, bitangent, vec2 { t, 1 }
        );
    }
}

~cone()

scl::topology::cone::~cone ( )

overridedefault

Cone topology object default destructor.

---

The documentation for this class was generated from the following files:

• core/resources/topology/cone.h
• core/resources/topology/cone.cpp