math2d 0.2.0-alpha8

2D Mathematics library designed for use with 2D drawing applications. Primarily designed for the needs of Direct2D, but this library should be perfectly capable of filling in the needs of other libraries such as Cairo. If you would like interoperability defitions added please feel free to open a pull request on the repository. Currently compatible with: - `Direct2D` (winapi types) - `Mint` (crate)
Documentation 
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//! Represents a triangle described by its 3 corners.

use crate::point2f::Point2f;

#[cfg(all(windows, feature = "d2d"))]
use winapi::um::d2d1::D2D1_TRIANGLE;

/// Represents a triangle described by its 3 corners.
#[derive(Copy, Clone, Debug, Default, PartialEq)]
#[cfg_attr(feature = "serde_derive", derive(Serialize, Deserialize))]
#[repr(C)]
pub struct Triangle {
    /// The first point
    pub p1: Point2f,
    /// The second point
    pub p2: Point2f,
    /// The third point
    pub p3: Point2f,
}

impl<P1, P2, P3> From<(P1, P2, P3)> for Triangle
where
    P1: Into<Point2f>,
    P2: Into<Point2f>,
    P3: Into<Point2f>,
{
    #[inline]
    fn from((p1, p2, p3): (P1, P2, P3)) -> Triangle {
        Triangle {
            p1: p1.into(),
            p2: p2.into(),
            p3: p3.into(),
        }
    }
}

#[cfg(all(windows, feature = "d2d"))]
impl From<Triangle> for D2D1_TRIANGLE {
    #[inline]
    fn from(seg: Triangle) -> D2D1_TRIANGLE {
        D2D1_TRIANGLE {
            point1: seg.p1.into(),
            point2: seg.p2.into(),
            point3: seg.p3.into(),
        }
    }
}

#[cfg(all(windows, feature = "d2d"))]
impl From<D2D1_TRIANGLE> for Triangle {
    #[inline]
    fn from(seg: D2D1_TRIANGLE) -> Triangle {
        Triangle {
            p1: seg.point1.into(),
            p2: seg.point2.into(),
            p3: seg.point3.into(),
        }
    }
}