Struct Polygon

pub struct Polygon { /* private fields */ }

Implementations

impl Polygon

pub fn new( initial_contour: &Vec<(f64, f64)>, offset_size: f64, ) -> Result<Polygon, Box<dyn Error>>

Examples found in repository

examples/example_offsetting.rs (line 42)

fn example_offsetting() -> Result <(), Box<dyn std::error::Error>> {
	// The initial polygon must be closed
	let points: Vec<(f64, f64)> = vec![
		(0., 0.),
		(100., 0.),
		(40., 20.),
		(100., 20.),
		(100., 60.),
		(95., 78.),
		(55., 40.),
		(0., 60.),
		(0.0, 0.0)
	];

	// The size of our margin offset, if this value is egal to 0 no offsetting will be computed
	let offset_size: f64 = 12.25;
	// Tolerance is the arc segments precision in polygon offsetting (rounded corner)
	let tolerance: f64 = 0.1;

	let mut polygon = Polygon::new(&points, offset_size).map_err(|e| { e })?;
	let offset: Offset = polygon.offsetting(tolerance).map_err(|e| { e })?;

	println!("Initial contour length: {:?}", points.len());
	println!("Offset contour length: {:?}", offset.contour.len());
	println!("Offset area: {:?}", offset.area);
	println!("Offset perimeter: {:?}", offset.perimeter);
    
    draw_svg_offset(
	    &points,
	    &offset,
	    "/examples/svg/",
        "example_offsetting",
	).map_err(|e| { 
	    print!("Error creating offset svg: {:?}", e);
	    e 
	})?;

    Ok(())
}

pub fn offsetting(&mut self, tolerance: f64) -> Result<Offset, Box<dyn Error>>

Examples found in repository

examples/example_offsetting.rs (line 43)

fn example_offsetting() -> Result <(), Box<dyn std::error::Error>> {
	// The initial polygon must be closed
	let points: Vec<(f64, f64)> = vec![
		(0., 0.),
		(100., 0.),
		(40., 20.),
		(100., 20.),
		(100., 60.),
		(95., 78.),
		(55., 40.),
		(0., 60.),
		(0.0, 0.0)
	];

	// The size of our margin offset, if this value is egal to 0 no offsetting will be computed
	let offset_size: f64 = 12.25;
	// Tolerance is the arc segments precision in polygon offsetting (rounded corner)
	let tolerance: f64 = 0.1;

	let mut polygon = Polygon::new(&points, offset_size).map_err(|e| { e })?;
	let offset: Offset = polygon.offsetting(tolerance).map_err(|e| { e })?;

	println!("Initial contour length: {:?}", points.len());
	println!("Offset contour length: {:?}", offset.contour.len());
	println!("Offset area: {:?}", offset.area);
	println!("Offset perimeter: {:?}", offset.perimeter);
    
    draw_svg_offset(
	    &points,
	    &offset,
	    "/examples/svg/",
        "example_offsetting",
	).map_err(|e| { 
	    print!("Error creating offset svg: {:?}", e);
	    e 
	})?;

    Ok(())
}

Trait Implementations

impl Clone for Polygon

fn clone(&self) -> Polygon

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Polygon

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Polygon

fn default() -> Polygon

Returns the “default value” for a type.