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Added transform_as_point

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This commit is contained in:
kvark 2013-11-02 10:18:37 -04:00
parent efd3403bf2
commit c13ebf57ab
1 changed files with 6 additions and 2 deletions
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8
src/cgmath/transform.rs
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@ -41,6 +41,11 @@ pub trait Transform
Ray::new( self.transform_point(&ray.origin), self.transform_vec(&ray.direction) ) Ray::new( self.transform_point(&ray.origin), self.transform_vec(&ray.direction) )
} }
#[inline]
fn transform_as_point(&self, vec: &V)-> V {
self.transform_point( &Point::from_vec(vec) ).to_vec()
}
fn concat(&self, other: &Self) -> Self; fn concat(&self, other: &Self) -> Self;
fn invert(&self) -> Option<Self>; fn invert(&self) -> Option<Self>;
@ -95,11 +100,10 @@ Transform<S, Slice, V, P> for Decomposed<S,V,R> {
} }
fn concat(&self, other: &Decomposed<S,V,R>) -> Decomposed<S,V,R> { fn concat(&self, other: &Decomposed<S,V,R>) -> Decomposed<S,V,R> {
let p = Point::from_vec( &other.disp );
Decomposed { Decomposed {
scale: self.scale * other.scale, scale: self.scale * other.scale,
rot: self.rot.concat( &other.rot ), rot: self.rot.concat( &other.rot ),
disp: self.transform_point( &p ).to_vec(), disp: self.transform_as_point( &other.disp ),
} }
} }