本文整理汇总了C++中YsVec3类的典型用法代码示例。如果您正苦于以下问题：C++ YsVec3类的具体用法？C++ YsVec3怎么用？C++ YsVec3使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了YsVec3类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: YsMakeSmaller
void FsLazyWindowApplication::CacheBoundingBox(void)
{
auto nVtx=vtx.size()/3;
// Cache bounding box
if(0<nVtx)
{
float minx,miny,minz,maxx,maxy,maxz;
minx=vtx[0];
miny=vtx[1];
minz=vtx[2];
maxx=vtx[0];
maxy=vtx[1];
maxz=vtx[2];
for(decltype(nVtx) i=0; i<nVtx; ++i)
{
YsMakeSmaller(minx,vtx[i*3]);
YsMakeSmaller(miny,vtx[i*3+1]);
YsMakeSmaller(minz,vtx[i*3+2]);
YsMakeGreater(maxx,vtx[i*3]);
YsMakeGreater(maxy,vtx[i*3+1]);
YsMakeGreater(maxz,vtx[i*3+2]);
}
min.Set(minx,miny,minz);
max.Set(maxx,maxy,maxz);
}
else
{
min=YsVec3::Origin();
max=YsVec3::Origin();
}
}示例2: Motion
void YsClassSample::Motion(int x,int y)
{
double dx,dy;
YsVec3 vec;
dx=double(x-lastX);
dy=double(lastY-y);
switch(mouseMode)
{
case 0:
eyeAtt.NoseUp(dy/300.0);
eyeAtt.YawLeft(-dx/300.0);
break;
case 1:
vec.Set(-dx/30.0,-dy/30.0,0.0);
vec=eyeAtt.GetMatrix()*vec;
eyeLookAt=eyeLookAt+vec;
break;
case 2:
RotatePolygon(p,dy/300.0,-dx/300.0);
break;
case 3:
RotatePolygon(q,dy/300.0,-dx/300.0);
break;
case 4:
RotatePolygon(r,dy/300.0,-dx/300.0);
break;
}
lastX=x;
lastY=y;
}示例3: DrawNearestPointInsideOrOutside
void YsClassSample::DrawNearestPointInsideOrOutside(void)
{
YsPlane pln;
YsVec3 nearestPoint;
YSSIDE sd;
BIPOINT cursor;
pln.MakeBestFitPlane(4,p);
pln.GetNearestPoint(nearestPoint,pointOfInterest);
sd=YsCheckInsidePolygon3(nearestPoint,4,p);
BiSetPoint(&cursor,nearestPoint.x(),nearestPoint.y(),nearestPoint.z());
switch(sd)
{
case YSINSIDE:
BiInsMarker(&cursor,&BiGreen,BIMK_CROSS);
break;
case YSOUTSIDE:
BiInsMarker(&cursor,&BiBlue,BIMK_CROSS);
break;
case YSBOUNDARY:
BiInsMarker(&cursor,&BiYellow,BIMK_CROSS);
break;
case YSUNKNOWNSIDE:
BiInsMarker(&cursor,&BiRed,BIMK_CROSS);
break;
}
}示例4: Display
void Display(void)
{
double matBuf[4*4];
YsVec3 eyePos;
YsMatrix4x4 eyeTfm;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
eyePos.Set(0.0,0.0,eyeDistance);
eyePos=eyeAtt.GetMatrix()*eyePos;
eyeTfm.Initialize();
eyeTfm.Translate(eyePos);
eyeTfm.Rotate(eyeAtt);
eyeTfm.Invert();
eyeTfm.Translate(-eyeLookAt);
eyeTfm.GetArray(matBuf);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glMultMatrixd(matBuf);
DrawSeparatablePair(nVtx,vtx);
glFlush();
glutSwapBuffers();
}示例5: Display
void Display(void)
{
double matBuf[4*4];
YsVec3 eyePos;
YsMatrix4x4 eyeTfm;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
eyePos.Set(0.0,0.0,eyeDistance);
eyePos=eyeAtt.GetMatrix()*eyePos;
eyeTfm.Initialize();
eyeTfm.Translate(eyePos);
eyeTfm.Rotate(eyeAtt);
eyeTfm.Invert();
eyeTfm.Translate(-eyeLookAt);
eyeTfm.GetArray(matBuf);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glMultMatrixd(matBuf);
DrawShell(sh1,blu,drawInPolygon);
DrawShell(sh2,grn,drawInPolygon);
DrawAxis(5.0);
glFlush();
glutSwapBuffers();
}示例6:
static YSRESULT YsClipInfiniteLine3_FindFirstIntersection
(YsVec3 &itsc,const YsVec3 &org,const YsVec3 &vec,const YsVec3 range[2])
{
int i,j,k;
for(i=0; i<3; i++)
{
for(j=0; j<2; j++)
{
if(YsClip3DLine(itsc,org,vec,range[j].GetValue()[i],i)==YSOK)
{
for(k=0; k<3; k++)
{
if(i!=k &&
(itsc.GetValue()[k]<range[0].GetValue()[k]-YsTolerance ||
range[1].GetValue()[k]+YsTolerance<itsc.GetValue()[k]))
{
goto NEXTPLANE;
}
}
return YSOK;
}
NEXTPLANE:
;
}
}
return YSERR;
}示例7: Motion
void Motion(int x,int y)
{
if(button==GLUT_DOWN)
{
double dx,dy;
YsVec3 vec;
dx=double(x-lastX);
dy=double(lastY-y);
switch(mouseMode)
{
case 0:
eyeAtt.NoseUp(dy/300.0);
eyeAtt.YawLeft(-dx/300.0);
break;
case 1:
vec.Set(-dx/30.0,-dy/30.0,0.0);
vec=eyeAtt.GetMatrix()*vec;
eyeLookAt=eyeLookAt+vec;
break;
}
glutPostRedisplay();
}
lastX=x;
lastY=y;
}示例8: collide
void Cylinder::collide(Particle &particle)const
{
YsVec3 r=particle.getPosition();
YsVec3 v=particle.getVelocity();
YsVec3 n;
//particle penetrates neither bottom nor radius
if (bottom_fun(r)<0 && side_fun(r)<0) {
return;
}
if (bottom_fun(r)>0) {
n=YsYVec();
if (n*v<0) {
v=v-2*(v*n)*n; //bounce velocity
particle.setVelocity(v);
}
}
if (side_fun(r)>0) {
n=origin-r;
n.SetY(0.0);
n.Normalize();
if (n*v<0) {
v=v-2*(v*n)*n; //bounce velocity
particle.setVelocity(v);
}
}
}示例9:
YSBOOL YsBoundingBoxMaker3::IsInsideXY(const YsVec3 &pos) const
{
if(min.x()-YsTolerance<=pos.x() && pos.x()<=max.x()+YsTolerance &&
min.y()-YsTolerance<=pos.y() && pos.y()<=max.y()+YsTolerance)
{
return YSTRUE;
}
return YSFALSE;
}示例10: YsZClip
YSRESULT YsZClip(YsVec3 &clipPos,const YsVec3 &p1,const YsVec3 &p2,const double &clipz)
{
const double denom=(p2.z()-p1.z());
if(YsTolerance<=fabs(denom))
{
const YsVec3 v=p2-p1;
const double t=(clipz-p1.z())/denom;
clipPos.Set(p1[0]+t*v[0],p1[1]+t*v[1],clipz);
return YSOK;
}
return YSERR;
}示例11: YsClipLineWithNearZ
YSRESULT YsClipLineWithNearZ(
YsVec3 &newP1,YsVec3 &newP2,const YsVec3 &p1,const YsVec3 &p2,const double &nearz,YSBOOL positivez)
{
class TestIsFrontSide
{
public:
inline YSBOOL IsFrontSide(const double tstz,const double nearz,YSBOOL positivez)
{
if(YSTRUE==positivez && nearz<=tstz)
{
return YSTRUE;
}
else if(YSTRUE!=positivez && tstz<=nearz)
{
return YSTRUE;
}
return YSFALSE;
}
};
TestIsFrontSide tester;
if(YSTRUE==tester.IsFrontSide(p1.z(),nearz,positivez) &&
YSTRUE==tester.IsFrontSide(p2.z(),nearz,positivez))
{
newP1=p1;
newP2=p2;
return YSOK;
}
else if(YSTRUE==tester.IsFrontSide(p1.z(),nearz,positivez) ||
YSTRUE==tester.IsFrontSide(p2.z(),nearz,positivez))
{
YsVec3 clipPos;
if(YSOK==YsZClip(clipPos,p1,p2,nearz))
{
if(YSTRUE==tester.IsFrontSide(p2.z(),nearz,positivez))
{
newP1=clipPos;
newP2=p2;
return YSOK;
}
else
{
newP1=p1;
newP2=clipPos;
return YSOK;
}
}
}
return YSERR;
}示例12: YsTransform3DCoordToScreenCoord
void YsTransform3DCoordToScreenCoord(YsVec3 &scrn,const YsVec3 &from,const int viewport[4],const YsMatrix4x4 &projViewModelTfm)
{
double pos4d[4]={from.x(),from.y(),from.z(),1.0};
projViewModelTfm.Mul(pos4d,pos4d);
pos4d[0]/=pos4d[3];
pos4d[1]/=pos4d[3];
pos4d[2]/=pos4d[3];
pos4d[0]=(double)viewport[0]+(double)viewport[2]*(pos4d[0]+1.0)/2.0;
pos4d[1]=(double)viewport[1]+(double)viewport[3]*(pos4d[1]+1.0)/2.0;
scrn.Set(pos4d[0],pos4d[1],pos4d[2]);
}示例13: Encache
YSRESULT YsShell::SaveMs3(int &nIgnored,const char fn[]) const
{
FILE *fp;
YsShellVertexHandle vtHd;
YsShellPolygonHandle plHd;
Encache();
nIgnored=0;
fp=fopen(fn,"w");
if(fp!=NULL)
{
vtHd=NULL;
while((vtHd=FindNextVertex(vtHd))!=NULL)
{
YsVec3 pos;
GetVertexPosition(pos,vtHd);
fprintf(fp,"V %lf %lf %lf\n",pos.x(),pos.y(),pos.z());
}
plHd=NULL;
while((plHd=FindNextPolygon(plHd))!=NULL)
{
int n;
const YsShellVertexHandle *plVtHd;
n=GetNumVertexOfPolygon(plHd);
plVtHd=GetVertexListOfPolygon(plHd);
if(n==3)
{
fprintf(fp,"D %d %d %d\n", // D of Delta
GetVertexIdFromHandle(plVtHd[0]),
GetVertexIdFromHandle(plVtHd[1]),
GetVertexIdFromHandle(plVtHd[2]));
}
else if(n==4)
{
fprintf(fp,"Q %d %d %d %d\n",
GetVertexIdFromHandle(plVtHd[0]),
GetVertexIdFromHandle(plVtHd[1]),
GetVertexIdFromHandle(plVtHd[2]),
GetVertexIdFromHandle(plVtHd[3]));
}
}
fclose(fp);
return YSOK;
}
return YSERR;
}示例14: YsTransformScreenCoordTo3DCoord
void YsTransformScreenCoordTo3DCoord(YsVec3 &threeD,const YsVec3 &scrn,const int viewport[4],const YsMatrix4x4 &projViewModelTfm)
{
double pos4d[4]=
{
(scrn.x()-(double)viewport[0])*2.0/(double)viewport[2]-1.0,
(scrn.y()-(double)viewport[1])*2.0/(double)viewport[3]-1.0,
scrn.z(),
1.0
};
projViewModelTfm.MulInverse(pos4d,pos4d);
pos4d[0]/=pos4d[3];
pos4d[1]/=pos4d[3];
pos4d[2]/=pos4d[3];
threeD.Set(pos4d[0],pos4d[1],pos4d[2]);
}示例15: if
const YsVec3 YsTraceLineSegment::GetCurrentTangent(void) const
{
YsVec3 t;
if(curPos.seg<lSeg.GetN()-1)
{
t=lSeg[curPos.seg+1]-lSeg[curPos.seg];
t.Normalize();
return t;
}
else if(2<=lSeg.GetN())
{
t=lSeg[lSeg.GetN()-1]-lSeg[lSeg.GetN()-2];
t.Normalize();
return t;
}
return YsOrigin();
}