public double getInvariant(Vec p0, Vec p1)
{
Vec delta = p0.minus(p1);
if (mEuklide)
return delta.mX * delta.mX + delta.mY * delta.mY;
else
return -delta.mX * delta.mX + delta.mY * delta.mY;
}
public override bool select(Vec pos)
{
Vec delta = pos.minus(mPos0);
Vec len = mPos1.minus(mPos0);
double proj1 = delta.dot(len) / len.lenghtSquare();
double proj2 = delta.perp().dot(len) / len.lenghtSquare();
return proj1 > 0 && proj1 < 1 && proj2 > -0.05 && proj2 < 0.05;
}
public State onDown(Vec pos, MouseButtons button)
{
mPos = pos.minus(mShift);
mLeft.onDown(mPos, button);
mRight.onDown(mPos, button);
return(this);
}
public State onMove(Vec pos)
{
mPos = pos.minus(mShift);
mLeft.onMove(mPos);
mRight.onMove(mPos);
return(this);
}
public State onUp(Vec pos, MouseButtons button)
{
mPos = pos.minus(mShift);
mLeft.onUp(mPos, button);
mRight.onUp(mPos, button);
return this;
}
public State onMove(Vec pos)
{
mPos = pos.minus(mShift);
mLeft.onMove(mPos);
mRight.onMove(mPos);
return this;
}
override public bool select(Vec pos)
{
Vec delta = pos.minus(mPos0);
Vec len = mPos1.minus(mPos0);
double proj1 = delta.dot(len) / len.lenghtSquare();
double proj2 = delta.perp().dot(len) / len.lenghtSquare();
return(proj1 > 0 && proj1 < 1 && proj2 > -0.05 && proj2 < 0.05);
}
public double getInvariant(Vec p0, Vec p1)
{
Vec delta = p0.minus(p1);
if (mEuklide)
{
return(delta.mX * delta.mX + delta.mY * delta.mY);
}
else
{
return(-delta.mX * delta.mX + delta.mY * delta.mY);
}
}
public Vec getCenterFromScreenAndWorld(Vec screen, Vec world)
{
// center = world - (mat-1) * (scale-1 * screen)
return(world.minus(mMat.multBack(mScale.scaleBack(screen))));
}
public Vec getScreenFromWorld(Vec world)
{
// screen = scale * (mat * (world - center))
return(mScale.scale(mMat.mult(world.minus(mCenter))));
}
public Vec getScreenFromWorld(Vec world)
{
// screen = scale * (mat * (world - center))
return mScale.scale(mMat.mult(world.minus(mCenter)));
}
public Vec getCenterFromScreenAndWorld(Vec screen, Vec world)
{
// center = world - (mat-1) * (scale-1 * screen)
return world.minus(mMat.multBack(mScale.scaleBack(screen)));
}
override public bool select(Vec pos)
{
Vec delta = pos.minus(mPos);
return(Math.Sqrt(delta.mX * delta.mX + delta.mY * delta.mY) < 5 / mParent.mZoom);
}
public override bool select(Vec pos)
{
Vec delta = pos.minus(mPos);
return Math.Sqrt(delta.mX * delta.mX + delta.mY * delta.mY) < 5/mParent.mZoom;
}
