55 lines
999 B
Rust
55 lines
999 B
Rust
//! `Point` type.
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use super::epnt;
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use crate::{err::*, fixed::Unit};
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/// Reads a `Point` object.
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pub fn read_o(b: &[u8]) -> ResultS<Point>
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{
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read_data! {
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endian: BIG, buf: b, size: 4, start: 0, data {
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let x = Unit[0];
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let y = Unit[2];
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}
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}
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Ok(Point{x, y})
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}
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/// Writes a `Point` object.
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pub fn write_o(v: Point) -> Vec<u8>
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{
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let mut o = Vec::with_capacity(4);
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o.extend(&v.x.to_be_bytes());
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o.extend(&v.y.to_be_bytes());
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o
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}
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/// Reads a `PNTS` chunk.
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pub fn read(b: &[u8]) -> ResultS<(Point, usize)> {Ok((read_o(b)?, 4))}
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impl From<&Point> for Point
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{
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fn from(pnts: &Point) -> Self {*pnts}
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}
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impl From<epnt::Endpoint> for Point
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{
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fn from(epnt: epnt::Endpoint) -> Self {epnt.pos}
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}
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impl From<&epnt::Endpoint> for Point
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{
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fn from(epnt: &epnt::Endpoint) -> Self {epnt.pos}
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}
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/// A point in world-space.
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#[cfg_attr(feature = "serde_obj", derive(serde::Serialize))]
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#[derive(Copy, Clone, Debug, Default, Eq, PartialEq)]
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pub struct Point {
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pub x: Unit,
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pub y: Unit,
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}
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// EOF
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