diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/animation.rs | 122 | ||||
| -rw-r--r-- | examples/cairo.rs | 54 | ||||
| -rw-r--r-- | examples/subdivision.rs | 4 |
3 files changed, 56 insertions, 124 deletions
diff --git a/examples/animation.rs b/examples/animation.rs deleted file mode 100644 index f6aca39..0000000 --- a/examples/animation.rs +++ /dev/null @@ -1,122 +0,0 @@ -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); -} diff --git a/examples/cairo.rs b/examples/cairo.rs new file mode 100644 index 0000000..3114136 --- /dev/null +++ b/examples/cairo.rs @@ -0,0 +1,54 @@ +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(); + */ + }; + + Dcel::new(|mut dcel| { + let body = dcel.new_body(); + + 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); + }); +} diff --git a/examples/subdivision.rs b/examples/subdivision.rs index ba80e49..883b121 100644 --- a/examples/subdivision.rs +++ b/examples/subdivision.rs @@ -2,7 +2,7 @@ use dcel::{ptr_t, Dcel, ObjExport, ObjImport, Ptr, Shell}; use std::array::from_fn; use std::collections::HashMap; -fn avg(mut iter: impl Iterator<Item = [f32; 3]>) -> Option<[f32; 3]> { +fn avg(iter: impl Iterator<Item = [f32; 3]>) -> Option<[f32; 3]> { let mut count = 0usize; let mut accum = [0.0; 3]; @@ -113,7 +113,7 @@ fn main() { let shell = body.iter_shells(&dcel).next().unwrap().item; for i in 0..5 { - println!("{i}..."); + println!("subdivision level {i}..."); catmull_clark_subdivision(&mut dcel, shell); } |