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added IsNearlyEqual functions,updated PolarToVector function.

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This commit is contained in:
hyzboy 2022-01-27 14:53:15 +08:00
parent 9a74f1722c
commit 3b55f2f42b
1 changed files with 19 additions and 8 deletions
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27
inc/hgl/math/Vector.h
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@ -22,7 +22,6 @@ namespace hgl
using Vector3u=glm::uvec3; using Vector3u=glm::uvec3;
using Vector4u=glm::uvec4; using Vector4u=glm::uvec4;
inline bool operator == (const Vector2f &lhs,const Vector2f &rhs) inline bool operator == (const Vector2f &lhs,const Vector2f &rhs)
{ {
if(lhs.x!=rhs.x)return(false); if(lhs.x!=rhs.x)return(false);
@ -224,6 +223,21 @@ namespace hgl
result.y = start.y + (end.y - start.y)*pos; result.y = start.y + (end.y - start.y)*pos;
} }
inline bool IsNearlyEqual(const float v1,const float v2,const float gap)
{
return fabsf(v1-v2)<=gap;
}
inline bool IsNearlyEqual(const Vector2f &v1,const Vector2f &v2,const float gap)
{
return length_squared_2d(v1,v2)<=(gap*gap);
}
inline bool IsNearlyEqual(const Vector3f &v1,const Vector3f &v2,const float gap)
{
return length_squared(v1,v2)<=(gap*gap);
}
inline float ray_angle_cos(const Vector3f &ray_dir, const Vector3f &ray_pos, const Vector3f &pos) inline float ray_angle_cos(const Vector3f &ray_dir, const Vector3f &ray_pos, const Vector3f &pos)
{ {
return dot(ray_dir, normalized(pos - ray_pos)); return dot(ray_dir, normalized(pos - ray_pos));
@ -251,14 +265,11 @@ namespace hgl
result.y = center.y + ((source.x - center.x)*as + (source.y - center.y)*ac); result.y = center.y + ((source.x - center.x)*as + (source.y - center.y)*ac);
} }
inline const Vector3f PolarToVector3f(float yaw,float pitch) inline const Vector3f PolarToVector(float yaw,float pitch)
{ {
return Vector3f(sinf(yaw) * cosf(pitch), sinf(pitch), cosf(yaw) * cosf(pitch)); return glm::normalize( Vector3f( cos(yaw )*cos(pitch),
} sin(yaw )*cos(pitch),
sin(pitch)));
inline const Vector4f PolarToVector4f(float yaw,float pitch)
{
return Vector4f(sinf(yaw) * cosf(pitch), sinf(pitch), cosf(yaw) * cosf(pitch), 0);
} }
inline const Vector4f PointVector(const Vector3f &v) inline const Vector4f PointVector(const Vector3f &v)