本文整理汇总了C++中Plane3D::intersectsRay方法的典型用法代码示例。如果您正苦于以下问题：C++ Plane3D::intersectsRay方法的具体用法？C++ Plane3D::intersectsRay怎么用？C++ Plane3D::intersectsRay使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Plane3D的用法示例。
在下文中一共展示了Plane3D::intersectsRay方法的1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: Drag
void TransformWidget::Drag(int dx,int dy,Camera::Viewport& viewport)
{
dragX += dx;
dragY += dy;
Ray3D r;
viewport.getClickSource(dragX,dragY,r.source);
viewport.getClickVector(dragX,dragY,r.direction);
if(hoverItem < 0) return;
else if(hoverItem == 0) {
Vector3 v;
viewport.getMovementVectorAtDistance(dx,dy,clickDistance,v);
T.t += v;
}
else if(hoverItem <= 3) { //translation
Line3D axisLine;
axisLine.source = clickPos;
axisLine.direction = Vector3(T.R.col(hoverItem-1));
Real t,u;
axisLine.closestPoint(r,t,u);
T.t = clickTransform.t + axisLine.direction*t;
}
else {
Plane3D ringPlane;
Vector3 axis;
if(hoverItem <= 6) axis = Vector3(clickTransform.R.col(hoverItem-4));
else axis = clickAxis;
Vector3 x,y;
GetCanonicalBasis(axis,x,y);
//find rotation to minimize distance from clicked pos to drag ray
Real cx = x.dot(clickPos - T.t);
Real cy = y.dot(clickPos - T.t);
ringPlane.setPointNormal(T.t,axis);
Real t;
bool res=ringPlane.intersectsRay(r,&t);
//odd... no intersection
if(res==false) return;
Vector3 raypos = r.source + t*r.direction - T.t;
Real rx = x.dot(raypos);
Real ry = y.dot(raypos);
if(Sqr(rx) + Sqr(ry) < 1e-5) return;
Real theta = AngleDiff(Atan2(ry,rx),Atan2(cy,cx));
AngleAxisRotation aa;
aa.axis = axis;
aa.angle = theta;
QuaternionRotation qR,qT,qRes;
qR.setAngleAxis(aa);
qT.setMatrix(clickTransform.R);
qRes.mul(qR,qT);
qRes.getMatrix(T.R);
}
Refresh();
}