mirror of https://codeberg.org/topola/topola.git
796 lines
27 KiB
Rust
796 lines
27 KiB
Rust
use std::collections::HashMap;
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use geo::{point, Point, Rotate};
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use thiserror::Error;
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use crate::{
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board::{mesadata::AccessMesadata, Board},
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drawing::{
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dot::FixedDotWeight,
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graph::{GetLayer, GetMaybeNet, MakePrimitive},
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primitive::MakePrimitiveShape,
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seg::FixedSegWeight,
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Drawing,
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},
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geometry::{primitive::PrimitiveShape, GetWidth},
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layout::{poly::SolidPolyWeight, Layout},
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math::Circle,
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specctra::{
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mesadata::SpecctraMesadata,
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read::{self, ListTokenizer},
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structure::{self, DsnFile, Layer, Pcb, Shape},
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write::ListWriter,
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},
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};
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#[derive(Error, Debug)]
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/// Errors raised by [`SpecctraDesign::load`]
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pub enum LoadingError {
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/// I/O file reading error from [`std::io::Error`]
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#[error(transparent)]
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Io(#[from] std::io::Error),
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/// File parsing errors containing information about unexpected end of file,
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/// or any other parsing issues with provided DSN file
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#[error(transparent)]
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Parse(#[from] read::ParseError),
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}
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/// This struct is responsible for managing the various Specctra components of a PCB design,
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/// including parsing the DSN file, handling the resolution, unit of measurement,
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/// and organizing the PCB's structure, placement, library, network, and wiring.
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/// It provides functionality for reading from a DSN file and writing Specctra's .SES session files.
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#[derive(Debug)]
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pub struct SpecctraDesign {
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pcb: Pcb,
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}
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impl SpecctraDesign {
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/// Loads a [`SpecctraDesign`] structure instance from a buffered reader.
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///
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/// This function reads the Specctra Design data from an input stream.
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/// Later the data is parsed and loaded into a [`SpecctraDesign`] structure,
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/// allowing further operations such as rule validation, routing, or netlist management.
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///
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pub fn load(reader: impl std::io::BufRead) -> Result<SpecctraDesign, LoadingError> {
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let mut list_reader = ListTokenizer::new(reader);
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let dsn = list_reader.read_value::<DsnFile>()?;
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Ok(Self { pcb: dsn.pcb })
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}
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/// Function to get name of the DSN file
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///
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/// This function returns the name of the `Pcb` objects
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pub fn get_name(&self) -> &str {
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&self.pcb.name
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}
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/// Writes the Specctra Session (.ses) file format using the current board layout and mesadata.
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///
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/// This function generates a Specctra SES session file that represents the board's net routing and
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/// writes it to the provided output stream. The session data includes routed nets, wires,
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/// layers, and other essential information for routing management.
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///
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pub fn write_ses(
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&self,
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board: &Board<SpecctraMesadata>,
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writer: impl std::io::Write,
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) -> Result<(), std::io::Error> {
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let mesadata = board.mesadata();
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let drawing = board.layout().drawing();
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let mut net_outs = HashMap::<usize, structure::NetOut>::new();
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for index in drawing.primitive_nodes() {
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let primitive = index.primitive(drawing);
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if let Some(net) = primitive.maybe_net() {
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let coords = match primitive.shape() {
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PrimitiveShape::Seg(seg) => {
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vec![
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structure::Point {
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x: seg.from.x(),
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y: seg.from.y(),
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},
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structure::Point {
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x: seg.to.x(),
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y: seg.to.y(),
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},
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]
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}
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PrimitiveShape::Bend(bend) => {
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// Since general circle arcs don't seem to be supported
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// we're downgrading each one to a chain of straight
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// line segments.
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// TODO: make this configurable? pick a smarter value?
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let segment_count: usize = 100;
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let circle = bend.circle();
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let angle_from = bend.start_angle();
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let angle_step = bend.spanned_angle() / segment_count as f64;
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let mut points = Vec::new();
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for i in 0..=segment_count {
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let x = circle.pos.x()
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+ circle.r * (angle_from + i as f64 * angle_step).cos();
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let y = circle.pos.y()
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+ circle.r * (angle_from + i as f64 * angle_step).sin();
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points.push(structure::Point { x, y });
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}
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points
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}
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// Intentionally skipped for now.
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// Topola stores trace segments and dots joining them
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// as separate objects, but the Specctra formats and KiCad
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// appear to consider them implicit.
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// TODO: Vias
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PrimitiveShape::Dot(_) => continue,
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};
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let wire = structure::WireOut {
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path: structure::Path {
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layer: mesadata
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.layer_layername(primitive.layer())
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.unwrap()
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.to_owned(),
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width: primitive.width(),
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coords,
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},
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};
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if let Some(net) = net_outs.get_mut(&net) {
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net.wire.push(wire);
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} else {
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net_outs.insert(
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net,
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structure::NetOut {
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name: mesadata.net_netname(net).unwrap().to_owned(),
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wire: vec![wire],
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via: Vec::new()
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},
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);
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}
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}
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}
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let ses = structure::SesFile {
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session: structure::Session {
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id: "ID".to_string(),
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routes: structure::Routes {
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resolution: structure::Resolution {
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unit: "um".into(),
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value: 1.0,
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},
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library_out: structure::Library {
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images: Vec::new(),
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padstacks: Vec::new(),
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},
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network_out: structure::NetworkOut {
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net: net_outs.into_values().collect(),
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},
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},
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},
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};
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ListWriter::new(writer).write_value(&ses)
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}
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/// Generates a [`Board<SpecctraMesadata>`] from the current PCB data.
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///
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/// This function takes the internal `Pcb` structure and transforms it into a [`Board`] object,
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/// which is used for layout and routing operations. The board is initialized with [`SpecctraMesadata`],
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/// which includes layer and net mappings, and is populated with components, pins, vias, and wires
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/// from the PCB definition.
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///
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pub fn make_board(&self) -> Board<SpecctraMesadata> {
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let mesadata = SpecctraMesadata::from_pcb(&self.pcb);
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let mut board = Board::new(Layout::new(Drawing::new(
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mesadata,
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self.pcb.structure.layers.len(),
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)));
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// mapping of pin -> net prepared for adding pins
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let pin_nets = HashMap::<String, usize>::from_iter(
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self.pcb
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.network
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.nets
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.iter()
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.map(|net_pin_assignments| {
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// resolve the id so we don't work with strings
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let net = board
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.layout()
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.drawing()
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.rules()
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.netname_net(&net_pin_assignments.name)
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.unwrap();
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// take the list of pins
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// and for each pin id output (pin id, net id)
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net_pin_assignments
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.pins
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.names
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.iter()
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.map(move |pinname| (pinname.clone(), net))
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})
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// flatten the nested iters into a single stream of tuples
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.flatten(),
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);
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// add pins from components
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for component in &self.pcb.placement.components {
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for place in &component.places {
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let image = self
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.pcb
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.library
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.images
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.iter()
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.find(|image| image.name == component.name)
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.unwrap();
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for pin in &image.pins {
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let pinname = format!("{}-{}", place.name, pin.id);
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let net = pin_nets.get(&pinname).unwrap();
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let padstack = &self
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.pcb
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.library
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.padstacks
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.iter()
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.find(|padstack| padstack.name == pin.name)
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.unwrap();
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for shape in padstack.shapes.iter() {
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match shape {
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Shape::Circle(circle) => {
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let layer = Self::layer(
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&mut board,
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&self.pcb.structure.layers,
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&circle.layer,
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place.side == "front",
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);
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Self::add_circle(
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&mut board,
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(place.x, place.y).into(),
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place.rotation,
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(pin.x, pin.y).into(),
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pin.rotate.unwrap_or(0.0),
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circle.diameter / 2.0,
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layer,
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*net,
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Some(pinname.clone()),
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)
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}
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Shape::Rect(rect) => {
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let layer = Self::layer(
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&mut board,
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&self.pcb.structure.layers,
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&rect.layer,
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place.side == "front",
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);
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Self::add_rect(
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&mut board,
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(place.x, place.y).into(),
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place.rotation,
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(pin.x, pin.y).into(),
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pin.rotate.unwrap_or(0.0),
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rect.x1,
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rect.y1,
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rect.x2,
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rect.y2,
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layer,
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*net,
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Some(pinname.clone()),
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)
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}
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Shape::Path(path) => {
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let layer = Self::layer(
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&mut board,
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&self.pcb.structure.layers,
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&path.layer,
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place.side == "front",
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);
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Self::add_path(
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&mut board,
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(place.x, place.y).into(),
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place.rotation,
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(pin.x, pin.y).into(),
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pin.rotate.unwrap_or(0.0),
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&path.coords,
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path.width,
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layer,
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*net,
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Some(pinname.clone()),
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)
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}
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Shape::Polygon(polygon) => {
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let layer = Self::layer(
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&mut board,
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&self.pcb.structure.layers,
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&polygon.layer,
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place.side == "front",
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);
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Self::add_polygon(
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&mut board,
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(place.x, place.y).into(),
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place.rotation,
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(pin.x, pin.y).into(),
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pin.rotate.unwrap_or(0.0),
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&polygon.coords,
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polygon.width,
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layer,
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*net,
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Some(pinname.clone()),
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)
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}
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};
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}
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}
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}
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}
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for via in &self.pcb.wiring.vias {
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let net = board
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.layout()
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.drawing()
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.rules()
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.netname_net(&via.net)
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.unwrap();
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// find the padstack referenced by this via placement
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let padstack = &self
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.pcb
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.library
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.padstacks
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.iter()
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.find(|padstack| padstack.name == via.name)
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.unwrap();
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for shape in &padstack.shapes {
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match shape {
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Shape::Circle(circle) => {
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let layer = Self::layer(
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&mut board,
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&self.pcb.structure.layers,
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&circle.layer,
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true,
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);
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Self::add_circle(
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&mut board,
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(0.0, 0.0).into(),
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0.0,
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(0.0, 0.0).into(),
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0.0,
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circle.diameter / 2.0,
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layer,
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net,
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None,
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)
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}
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Shape::Rect(rect) => {
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let layer =
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Self::layer(&mut board, &self.pcb.structure.layers, &rect.layer, true);
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Self::add_rect(
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&mut board,
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(0.0, 0.0).into(),
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0.0,
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(0.0, 0.0).into(),
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0.0,
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rect.x1,
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rect.y1,
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rect.x2,
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rect.y2,
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layer,
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net,
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None,
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)
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}
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Shape::Path(path) => {
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let layer =
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Self::layer(&mut board, &self.pcb.structure.layers, &path.layer, true);
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Self::add_path(
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&mut board,
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(0.0, 0.0).into(),
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0.0,
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(0.0, 0.0).into(),
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0.0,
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&path.coords,
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path.width,
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layer,
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net,
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None,
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)
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}
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Shape::Polygon(polygon) => {
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let layer = Self::layer(
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&mut board,
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&self.pcb.structure.layers,
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&polygon.layer,
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true,
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);
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Self::add_polygon(
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&mut board,
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(0.0, 0.0).into(),
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0.0,
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(0.0, 0.0).into(),
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0.0,
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&polygon.coords,
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polygon.width,
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layer,
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net,
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None,
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)
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}
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};
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}
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}
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for wire in self.pcb.wiring.wires.iter() {
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let layer = board
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.layout()
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.drawing()
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.rules()
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.layername_layer(&wire.path.layer)
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.unwrap();
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let net = board
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.layout()
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.drawing()
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.rules()
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.netname_net(&wire.net)
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.unwrap();
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Self::add_path(
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&mut board,
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(0.0, 0.0).into(),
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0.0,
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(0.0, 0.0).into(),
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0.0,
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&wire.path.coords,
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wire.path.width,
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layer,
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net,
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None,
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);
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}
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// The clones here are bad, we'll have something better later on.
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let layername_to_layer = &board.layout().drawing().rules().layer_layername.clone();
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for (layer, layername) in layername_to_layer.iter() {
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board
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.layout_mut()
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.rules_mut()
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.bename_layer(*layer, layername.to_string());
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}
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let netname_to_net = &board.layout().drawing().rules().net_netname.clone();
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for (net, netname) in netname_to_net.iter() {
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board
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.layout_mut()
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.rules_mut()
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.bename_net(*net, netname.to_string());
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}
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board
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}
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fn layer(
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board: &Board<SpecctraMesadata>,
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layers: &Vec<Layer>,
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layername: &str,
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front: bool,
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) -> usize {
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let image_layer = board
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.layout()
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.drawing()
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.rules()
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.layername_layer(layername)
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.unwrap();
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if front {
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image_layer
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} else {
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layers.len() - image_layer - 1
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}
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}
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|
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fn add_circle(
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board: &mut Board<SpecctraMesadata>,
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place_pos: Point,
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place_rot: f64,
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pin_pos: Point,
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pin_rot: f64,
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r: f64,
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layer: usize,
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net: usize,
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maybe_pin: Option<String>,
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) {
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let circle = Circle {
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pos: Self::pos(place_pos, place_rot, pin_pos, pin_rot, 0.0, 0.0),
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r,
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};
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board.add_fixed_dot_infringably(
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FixedDotWeight {
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circle,
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layer,
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maybe_net: Some(net),
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},
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maybe_pin.clone(),
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);
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}
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|
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fn add_rect(
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board: &mut Board<SpecctraMesadata>,
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place_pos: Point,
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place_rot: f64,
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pin_pos: Point,
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pin_rot: f64,
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x1: f64,
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y1: f64,
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x2: f64,
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y2: f64,
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layer: usize,
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net: usize,
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maybe_pin: Option<String>,
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) {
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let poly = board.add_poly(
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SolidPolyWeight {
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layer,
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maybe_net: Some(net),
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}
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.into(),
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maybe_pin.clone(),
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);
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// Corners.
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let dot_1_1 = board.add_poly_fixed_dot_infringably(
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FixedDotWeight {
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circle: Circle {
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pos: Self::pos(place_pos, place_rot, pin_pos, pin_rot, x1, y1),
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r: 0.5,
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},
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layer,
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maybe_net: Some(net),
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},
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poly,
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);
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let dot_2_1 = board.add_poly_fixed_dot_infringably(
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FixedDotWeight {
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circle: Circle {
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pos: Self::pos(place_pos, place_rot, pin_pos, pin_rot, x2, y1),
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r: 0.5,
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},
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layer,
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maybe_net: Some(net),
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},
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poly,
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);
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let dot_2_2 = board.add_poly_fixed_dot_infringably(
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FixedDotWeight {
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circle: Circle {
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pos: Self::pos(place_pos, place_rot, pin_pos, pin_rot, x2, y2),
|
|
r: 0.5,
|
|
},
|
|
layer,
|
|
maybe_net: Some(net),
|
|
},
|
|
poly,
|
|
);
|
|
let dot_1_2 = board.add_poly_fixed_dot_infringably(
|
|
FixedDotWeight {
|
|
circle: Circle {
|
|
pos: Self::pos(place_pos, place_rot, pin_pos, pin_rot, x1, y2),
|
|
r: 0.5,
|
|
},
|
|
layer,
|
|
maybe_net: Some(net),
|
|
},
|
|
poly,
|
|
);
|
|
// Sides.
|
|
board.add_poly_fixed_seg_infringably(
|
|
dot_1_1,
|
|
dot_2_1,
|
|
FixedSegWeight {
|
|
width: 1.0,
|
|
layer,
|
|
maybe_net: Some(net),
|
|
},
|
|
poly,
|
|
);
|
|
board.add_poly_fixed_seg_infringably(
|
|
dot_2_1,
|
|
dot_2_2,
|
|
FixedSegWeight {
|
|
width: 1.0,
|
|
layer,
|
|
maybe_net: Some(net),
|
|
},
|
|
poly,
|
|
);
|
|
board.add_poly_fixed_seg_infringably(
|
|
dot_2_2,
|
|
dot_1_2,
|
|
FixedSegWeight {
|
|
width: 1.0,
|
|
layer,
|
|
maybe_net: Some(net),
|
|
},
|
|
poly,
|
|
);
|
|
board.add_poly_fixed_seg_infringably(
|
|
dot_1_2,
|
|
dot_1_1,
|
|
FixedSegWeight {
|
|
width: 1.0,
|
|
layer,
|
|
maybe_net: Some(net),
|
|
},
|
|
poly,
|
|
);
|
|
}
|
|
|
|
fn add_path(
|
|
board: &mut Board<SpecctraMesadata>,
|
|
place_pos: Point,
|
|
place_rot: f64,
|
|
pin_pos: Point,
|
|
pin_rot: f64,
|
|
coords: &Vec<structure::Point>,
|
|
width: f64,
|
|
layer: usize,
|
|
net: usize,
|
|
maybe_pin: Option<String>,
|
|
) {
|
|
// add the first coordinate in the wire path as a dot and save its index
|
|
let mut prev_pos = Self::pos(
|
|
place_pos,
|
|
place_rot,
|
|
pin_pos,
|
|
pin_rot,
|
|
coords[0].x,
|
|
coords[0].y,
|
|
);
|
|
let mut prev_index = board.add_fixed_dot_infringably(
|
|
FixedDotWeight {
|
|
circle: Circle {
|
|
pos: prev_pos,
|
|
r: width / 2.0,
|
|
},
|
|
layer,
|
|
maybe_net: Some(net),
|
|
},
|
|
maybe_pin.clone(),
|
|
);
|
|
|
|
// iterate through path coords starting from the second
|
|
for coord in coords.iter().skip(1) {
|
|
let pos = Self::pos(place_pos, place_rot, pin_pos, pin_rot, coord.x, coord.y);
|
|
|
|
if pos == prev_pos {
|
|
continue;
|
|
}
|
|
|
|
let index = board.add_fixed_dot_infringably(
|
|
FixedDotWeight {
|
|
circle: Circle {
|
|
pos,
|
|
r: width / 2.0,
|
|
},
|
|
layer,
|
|
maybe_net: Some(net),
|
|
},
|
|
maybe_pin.clone(),
|
|
);
|
|
|
|
// add a seg between the current and previous coords
|
|
let _ = board.add_fixed_seg_infringably(
|
|
prev_index,
|
|
index,
|
|
FixedSegWeight {
|
|
width,
|
|
layer,
|
|
maybe_net: Some(net),
|
|
},
|
|
maybe_pin.clone(),
|
|
);
|
|
|
|
prev_index = index;
|
|
prev_pos = pos;
|
|
}
|
|
}
|
|
|
|
fn add_polygon(
|
|
board: &mut Board<SpecctraMesadata>,
|
|
place_pos: Point,
|
|
place_rot: f64,
|
|
pin_pos: Point,
|
|
pin_rot: f64,
|
|
coords: &Vec<structure::Point>,
|
|
width: f64,
|
|
layer: usize,
|
|
net: usize,
|
|
maybe_pin: Option<String>,
|
|
) {
|
|
let poly = board.add_poly(
|
|
SolidPolyWeight {
|
|
layer,
|
|
maybe_net: Some(net),
|
|
}
|
|
.into(),
|
|
maybe_pin.clone(),
|
|
);
|
|
|
|
// add the first coordinate in the wire path as a dot and save its index
|
|
let mut prev_index = board.add_poly_fixed_dot_infringably(
|
|
FixedDotWeight {
|
|
circle: Circle {
|
|
pos: Self::pos(
|
|
place_pos,
|
|
place_rot,
|
|
pin_pos,
|
|
pin_rot,
|
|
coords[0].x,
|
|
coords[0].y,
|
|
),
|
|
r: width / 2.0,
|
|
},
|
|
layer,
|
|
maybe_net: Some(net),
|
|
},
|
|
// TODO: This manual retagging shouldn't be necessary, `.into()` should suffice.
|
|
//GenericIndex::new(poly.petgraph_index()).into(),
|
|
poly,
|
|
);
|
|
|
|
// iterate through path coords starting from the second
|
|
for coord in coords.iter().skip(1) {
|
|
let index = board.add_poly_fixed_dot_infringably(
|
|
FixedDotWeight {
|
|
circle: Circle {
|
|
pos: Self::pos(place_pos, place_rot, pin_pos, pin_rot, coord.x, coord.y)
|
|
.into(),
|
|
r: width / 2.0,
|
|
},
|
|
layer,
|
|
maybe_net: Some(net),
|
|
},
|
|
// TODO: This manual retagging shouldn't be necessary, `.into()` should suffice.
|
|
poly,
|
|
);
|
|
|
|
// add a seg between the current and previous coords
|
|
let _ = board.add_poly_fixed_seg_infringably(
|
|
prev_index,
|
|
index,
|
|
FixedSegWeight {
|
|
width,
|
|
layer,
|
|
maybe_net: Some(net),
|
|
},
|
|
// TODO: This manual retagging shouldn't be necessary, `.into()` should suffice.
|
|
poly,
|
|
);
|
|
|
|
prev_index = index;
|
|
}
|
|
}
|
|
|
|
fn pos(
|
|
place_pos: Point,
|
|
place_rot: f64,
|
|
pin_pos: Point,
|
|
pin_rot: f64,
|
|
x: f64,
|
|
y: f64,
|
|
) -> Point {
|
|
let pos = (point! {x: x, y: y} + pin_pos).rotate_around_point(pin_rot, pin_pos);
|
|
(pos + place_pos).rotate_around_point(place_rot, place_pos)
|
|
}
|
|
}
|