Struct footile::Raster

pub struct Raster { /* private fields */ }

A raster image.

Example

use footile::{Color,PathBuilder,Plotter,Raster};
let path = PathBuilder::new().pen_width(5f32)
                       .move_to(16f32, 48f32)
                       .line_to(32f32, 0f32)
                       .line_to(-16f32, -32f32)
                       .close().build();
let mut p = Plotter::new(100, 100);
let mut r = Raster::new(p.width(), p.height());
p.stroke(&path);
r.color_over(p.mask(), Color::rgb(208, 255, 208));

Implementations

impl Raster

pub fn new(width: u32, height: u32) -> Raster

Create a new raster image.

• width Width in pixels.
• height Height in pixels.

pub fn clear(&mut self)

Clear all pixels.

pub fn color_over(&mut self, mask: &Mask, clr: Color)

Composite a color with a mask, using “over”.

• mask Mask for compositing.
• clr Color to composite.

pub fn write_png(self, filename: &str) -> Result<()>

Write the raster to a PNG (portable network graphics) file.

• filename Name of file to write.