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|
use cairo::{Context, SvgSurface};
use dcel::Dcel;
use enumset::EnumSet;
use std::borrow::Cow;
fn main() {
let show = |name, dcel: &Dcel<(&'static str, [i64; 2])>| {
let width = 300.0;
let height = width;
let surf =
//cairo::ImageSurface::create(cairo::Format::ARgb32, width as _, height as _).unwrap();
SvgSurface::new(width, height, Some(name)).unwrap();
let ctx = Context::new(surf).unwrap();
ctx.set_line_width(1.0);
dcel::write_img(
&dcel,
&ctx,
EnumSet::all(),
|v| {
[
v.1[0] as f64 * width / 3.0 + width / 2.0,
v.1[1] as f64 * height / 3.0 + height / 2.0,
]
},
|v| Cow::Borrowed(v.0),
12.0,
)
.unwrap();
/*ctx.target()
.write_to_png(&mut std::fs::File::create(name).unwrap())
.unwrap();
*/
/*write!(
&mut std::fs::File::create(name).unwrap(),
"{}",
DisplayFn(|f: &mut fmt::Formatter<'_>| dcel_write_dot(
dcel,
|v| v.1.map(|x| x as _),
|v, f| write!(f, "{}", v.0),
f,
DcelDotOptions {
prev: false,
next: true,
twin: true,
}
))
)
.unwrap();*/
};
Dcel::new(|mut dcel| {
let body = dcel.new_body();
// Mevvlfs(a, [w, n], l, f, s)
//let op = dcel.mevvlfs(*body, [("W", [-4, 0]), ("N", [0, 4])]);
let op = dcel
.mevvlfs(*body, [("W", [-1, 0]), ("N", [0, 1])])
.unwrap();
let op2 = dcel.mev(*op.loop_, *op.vertices[1], ("E", [1, 0])).unwrap();
let op3 = dcel.mev(*op.loop_, *op2.vertex, ("S", [0, -1])).unwrap();
dcel.melf([*op3.vertex, *op.vertices[0]], *op.loop_)
.unwrap();
dcel.melf([*op.vertices[0], *op2.vertex], *op.loop_)
.unwrap();
show("cairo.svg", &dcel);
});
/*
dbg!(ctx.clip_extents().unwrap());
let text = "meow meow meow mew mew mrrrp";
let x = 250.0;
let y = 250.0;
let ext = ctx.text_extents(text).unwrap();
ctx.move_to(
x - ext.width() / 2.0,
y - ext.y_bearing() - ext.height() / 2.0,
);
ctx.show_text(text).unwrap();
ctx.set_line_width(1.0);
{
let mat = ctx.matrix();
ctx.translate(x, y);
ctx.scale(
(ext.width() + ctx.line_width()) / 2.0f64.sqrt(),
(ext.height() + ctx.line_width()) / 2.0f64.sqrt(),
);
ctx.translate(-x, -y);
ctx.new_path();
ctx.arc(x, y, 1.0, 0.0, 2.0 * std::f64::consts::PI);
ctx.set_matrix(mat);
}
ctx.stroke().unwrap();*/
/*ctx.rectangle(
x - (ext.width() + ctx.line_width()) / 2.0,
y - (ext.height() + ctx.line_width()) / 2.0,
ext.width() + ctx.line_width(),
ext.height() + ctx.line_width(),
);
ctx.stroke().unwrap();*/
/*ctx.rectangle(
x - ext.width() / 2.0,
y - ext.height() / 2.0,
ext.width(),
ext.height(),
);*/
//cairo_move_to (cr, i + 0.5 - te.x_bearing - te.width / 2,
// 0.5 - te.y_bearing - te.height / 2);
}
|
