KiCad PCB EDA Suite
plane_3d.cpp
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1 /*
2  * This program source code file is part of KiCad, a free EDA CAD application.
3  *
4  * Copyright (C) 2015-2016 Mario Luzeiro <mrluzeiro@ua.pt>
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24 
29 #include "plane_3d.h"
30 
31 
33 {
34  m_centerPoint = aBBox.GetCenter();
36 
37  m_bbox.Reset();
38  m_bbox.Set( aBBox );
39  m_xsize = aBBox.GetExtent().x;
40  m_ysize = aBBox.GetExtent().y;
41  m_xsize_inv2 = 1.0f / ( 2.0f * m_xsize );
42  m_ysize_inv2 = 1.0f / ( 2.0f * m_ysize );
43 }
44 
45 
46 XY_PLANE::XY_PLANE( SFVEC3F aCenterPoint, float aXSize, float aYSize )
48 {
49  m_centerPoint = aCenterPoint;
50  m_xsize = aXSize;
51  m_ysize = aYSize;
52  m_xsize_inv2 = 1.0f / ( 2.0f * aXSize );
53  m_ysize_inv2 = 1.0f / ( 2.0f * aYSize );
54  m_bbox.Set( SFVEC3F( aCenterPoint.x - aXSize / 2.0f, aCenterPoint.y - aYSize / 2.0f,
55  aCenterPoint.z ),
56  SFVEC3F( aCenterPoint.x + aXSize / 2.0f, aCenterPoint.y + aYSize / 2.0f,
57  aCenterPoint.z ) );
58  m_centroid = aCenterPoint;
59 }
60 
61 
62 bool XY_PLANE::Intersect( const RAY& aRay, HITINFO& aHitInfo ) const
63 {
64  const float t = ( m_centerPoint.z - aRay.m_Origin.z ) * aRay.m_InvDir.z;
65 
66  if( ( t < FLT_EPSILON ) || ( t >= aHitInfo.m_tHit ) )
67  return false;
68 
69  const float vSU = t * aRay.m_Dir.x + aRay.m_Origin.x - m_centerPoint.x;
70 
71  if( (vSU < -m_xsize) || (vSU > m_xsize) )
72  return false;
73 
74  const float vSV = t * aRay.m_Dir.y + aRay.m_Origin.y - m_centerPoint.y;
75 
76  if( ( vSV < -m_ysize ) || ( vSV > m_ysize ) )
77  return false;
78 
79  aHitInfo.m_tHit = t;
80  aHitInfo.m_HitPoint = aRay.at( t );
81  aHitInfo.pHitObject = this;
82 
83  if( aRay.m_dirIsNeg[2] )
84  aHitInfo.m_HitNormal = SFVEC3F( 0.0f, 0.0f, 1.0f );
85  else
86  aHitInfo.m_HitNormal = SFVEC3F( 0.0f, 0.0f,-1.0f );
87 
88  m_material->Generate( aHitInfo.m_HitNormal, aRay, aHitInfo );
89 
90  return true;
91 }
92 
93 
94 bool XY_PLANE::IntersectP(const RAY& aRay, float aMaxDistance ) const
95 {
96  const float t = ( m_centerPoint.z - aRay.m_Origin.z ) * aRay.m_InvDir.z;
97 
98  if( ( t < FLT_EPSILON ) || ( t >= aMaxDistance ) )
99  return false;
100 
101  const float vSU = t * aRay.m_Dir.x + aRay.m_Origin.x - m_centerPoint.x;
102 
103  if( ( vSU < -m_xsize ) || ( vSU > m_xsize ) )
104  return false;
105 
106  const float vSV = t * aRay.m_Dir.y + aRay.m_Origin.y - m_centerPoint.y;
107 
108  if( ( vSV < -m_ysize ) || ( vSV > m_ysize ) )
109  return false;
110 
111  return true;
112 }
113 
114 
115 bool XY_PLANE::Intersects( const BBOX_3D& aBBox ) const
116 {
117  return m_bbox.Intersects( aBBox );
118 }
119 
120 
121 SFVEC3F XY_PLANE::GetDiffuseColor( const HITINFO& aHitInfo ) const
122 {
123  (void)aHitInfo; // unused
124 
125  return m_diffusecolor;
126 }
const SFVEC3F GetExtent() const
Definition: bbox_3d.cpp:145
Manage a bounding box defined by two SFVEC3F min max points.
Definition: bbox_3d.h:41
void Generate(SFVEC3F &aNormal, const RAY &aRay, const HITINFO &aHitInfo) const
Definition: material.cpp:93
float m_ysize
Definition: plane_3d.h:59
SFVEC3F m_diffusecolor
Definition: plane_3d.h:62
Definition: ray.h:67
float m_tHit
( 4) distance
Definition: hitinfo.h:43
SFVEC3F at(float t) const
Definition: ray.h:89
float m_xsize
Definition: plane_3d.h:58
SFVEC3F m_InvDir
Definition: ray.h:75
SFVEC3F m_HitPoint
(12) hit position
Definition: hitinfo.h:49
SFVEC3F GetCenter() const
Return the center point of the bounding box.
Definition: bbox_3d.cpp:132
BBOX_3D m_bbox
Definition: object_3d.h:97
bool Intersects(const BBOX_3D &aBBox) const override
Definition: plane_3d.cpp:115
unsigned int m_dirIsNeg[3]
Definition: ray.h:80
float m_ysize_inv2
Definition: plane_3d.h:61
bool IntersectP(const RAY &aRay, float aMaxDistance) const override
Definition: plane_3d.cpp:94
SFVEC3F m_centerPoint
Definition: plane_3d.h:57
const MATERIAL * m_material
Definition: object_3d.h:100
const OBJECT_3D * pHitObject
( 4) Object that was hitted
Definition: hitinfo.h:45
SFVEC3F m_Dir
Definition: ray.h:72
void Set(const SFVEC3F &aPbMin, const SFVEC3F &aPbMax)
Set bounding box with new parameters.
Definition: bbox_3d.cpp:68
SFVEC3F m_Origin
Definition: ray.h:69
bool Intersect(const RAY &aRay, HITINFO &aHitInfo) const override
Definition: plane_3d.cpp:62
SFVEC3F m_centroid
Definition: object_3d.h:98
Stores the hit information of a ray with a point on the surface of a object.
Definition: hitinfo.h:40
glm::vec3 SFVEC3F
Definition: xv3d_types.h:44
SFVEC3F m_HitNormal
(12) normal at the hit point
Definition: hitinfo.h:42
OBJECT_3D_TYPE
Definition: object_3d.h:38
float m_xsize_inv2
Definition: plane_3d.h:60
void Reset()
Reset the bounding box to zero and de-initialize it.
Definition: bbox_3d.cpp:95
bool Intersects(const BBOX_3D &aBBox) const
Test if a bounding box intersects this box.
Definition: bbox_3d.cpp:227
XY_PLANE(const BBOX_3D &aBBox)
Definition: plane_3d.cpp:32
SFVEC3F GetDiffuseColor(const HITINFO &aHitInfo) const override
Definition: plane_3d.cpp:121