Example #1
0
TEST(Transformable_objects, have_a_position_rotation_and_scaling)
{
	Transformable t;

	EXPECT_EQ(vec3(0,0,0),   t.position());
	EXPECT_EQ(vec3(1,1,1),   t.scaling());
	EXPECT_EQ(quat(0,0,0,1), t.rotation());
}
Example #2
0
TEST(Transformable_objects, can_be_rotated)
{
	Transformable t;
	quat rotationX(Transformable::X_AXIS, toRadian(90));
	quat rotationY(Transformable::Y_AXIS, toRadian(180));


	EXPECT_EQ(quat(0,0,0,1), t.rotation());
	t.rotateTo(rotationX);
	EXPECT_EQ(normalize(rotationX), t.rotation());
	t.rotateTo(Transformable::Y_AXIS, toRadian(180));
	EXPECT_EQ(normalize(rotationY), t.rotation());
	t.rotate(quat(Transformable::X_AXIS, toRadian(90)));
	EXPECT_EQ(normalize(rotationX * rotationY), t.rotation());
	t.rotate(Transformable::X_AXIS, toRadian(-90));
	EXPECT_EQ(normalize(rotationY), t.rotation());
}
Example #3
0
// SetTransformation
void
ChannelTransform::SetTransformation(const Transformable& other)
{
	// calc affine parameters

	// translation
	double tx;
	double ty;
	other.translation(&tx, &ty);

	// rotation
	double rotation = agg::rad2deg(other.rotation());

	// scale
	double scaleX;
	double scaleY;
	other.scaling(&scaleX, &scaleY);

	if (isnanf(tx) || isnanf(ty) || isnanf(scaleX) || isnanf(scaleY))
		return;

	SetTransformation(B_ORIGIN, BPoint(tx, ty), rotation, scaleX, scaleY);
}