tessellations 0.3.0

Library to create and draw periodic tilings of the plane.
Documentation 
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use crate::tessellationfigure::TessellationFigure;
use crate::tessellationline::{Point, TessellationLine};
use crate::tessellationshape::TessellationShape;

impl TessellationFigure {
    /// a basic figure a brick
    pub fn brick() -> Self {
        let mut f: TessellationFigure = TessellationFigure::new();
        f.gridincx = 1.0;
        f.gridincy = 1.0;
        f.rotdiv = 1;
        f.is_reversed = false;
        f.shiftx = 0.5;
        f.shifty = 0.0;
        f.shape = TessellationShape::S;

        let mut l1: TessellationLine = TessellationLine::new(1.0, 0.0, 0.0);
        l1.append(Point::new(0.0, 1.0));
        l1.append(Point::new(0.0, 0.0));
        f.append(l1);

        let mut l2: TessellationLine = TessellationLine::new(0.5, 1.0, 0.0);
        l2.append(Point::new(0.0, 0.0));
        l2.append(Point::new(0.5, 0.0));
        f.append(l2);

        let mut l3: TessellationLine = TessellationLine::new(-0.5, 1.0, 0.0);
        l3.append(Point::new(0.5, 0.0));
        l3.append(Point::new(1.0, 0.0));
        f.append(l3);

        f
    }
}

#[cfg(test)]
mod tests {

    use super::*;

    #[test]
    fn test_polybrick() {
        let f = TessellationFigure::brick();
        assert_eq!(
            f.points(),
            vec![
                Point::new(0.0, 1.0),
                Point::new(0.0, 0.0),
                Point::new(0.0, 0.0),
                Point::new(0.5, 0.0),
                Point::new(0.5, 0.0),
                Point::new(1.0, 0.0),
                Point::new(1.0, 0.0),
                Point::new(1.0, 1.0),
                Point::new(1.0, 1.0),
                Point::new(0.5, 1.0),
                Point::new(0.5, 1.0),
                Point::new(0.0, 1.0),
            ]
        );
    }
}