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@ -1,5 +1,13 @@
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use lyon_geom::{euclid, math};
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use std::str::FromStr;
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use svgdom::{AttributeId, AttributeValue, ElementId, ElementType, PathSegment};
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use lyon_geom::{
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euclid::{default::Transform2D, Angle, Transform3D},
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math,
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};
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use roxmltree::{Document, Node};
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use svgtypes::{
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LengthListParser, PathParser, PathSegment, TransformListParser, TransformListToken, ViewBox,
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};
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#[macro_use]
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#[macro_use]
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use crate::*;
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use crate::*;
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@ -18,7 +26,7 @@ pub struct ProgramOptions {
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pub dpi: f64,
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pub dpi: f64,
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}
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}
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pub fn svg2program(doc: &svgdom::Document, options: ProgramOptions, mach: Machine) -> Vec<Command> {
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pub fn svg2program(doc: &Document, options: ProgramOptions, mach: Machine) -> Vec<Command> {
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let mut turtle = Turtle::new(mach);
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let mut turtle = Turtle::new(mach);
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let mut program = vec![
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let mut program = vec![
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@ -29,192 +37,97 @@ pub fn svg2program(doc: &svgdom::Document, options: ProgramOptions, mach: Machin
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program.append(&mut turtle.machine.absolute());
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program.append(&mut turtle.machine.absolute());
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program.append(&mut turtle.move_to(true, 0.0, 0.0));
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program.append(&mut turtle.move_to(true, 0.0, 0.0));
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// Depth-first SVG DOM traversal
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let mut node_stack = vec![(doc.root(), doc.root().children())];
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let mut name_stack: Vec<String> = vec![];
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let mut name_stack: Vec<String> = vec![];
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for edge in doc.root().traverse() {
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while let Some((parent, mut children)) = node_stack.pop() {
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let (node, is_start) = match edge {
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let node: Node = match children.next() {
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svgdom::NodeEdge::Start(node) => (node, true),
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Some(child) => {
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svgdom::NodeEdge::End(node) => (node, false),
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node_stack.push((parent, children));
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child
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}
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None => {
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if parent.has_attribute("viewBox")
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|| parent.has_attribute("transform")
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|| parent.has_attribute("width")
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|| parent.has_attribute("height")
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{
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turtle.pop_transform();
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}
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name_stack.pop();
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continue;
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}
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};
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};
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let id = if let svgdom::QName::Id(id) = *node.tag_name() {
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if node.node_type() != roxmltree::NodeType::Element {
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id
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debug!("Encountered a non-element: {:?}", node);
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} else {
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continue;
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continue;
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};
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}
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let attributes = node.attributes();
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if node.tag_name().name() == "clipPath" {
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if let (ElementId::Svg, true) = (id, is_start) {
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warn!("Clip paths are not supported: {:?}", node);
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if let Some(&AttributeValue::ViewBox(view_box)) =
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continue;
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attributes.get_value(AttributeId::ViewBox)
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{
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turtle.stack_scaling(
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euclid::Transform2D::create_scale(1. / view_box.w, 1. / view_box.h)
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.post_translate(math::vector(view_box.x, view_box.y)),
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);
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}
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if let (Some(&AttributeValue::Length(width)), Some(&AttributeValue::Length(height))) = (
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attributes.get_value(AttributeId::Width),
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attributes.get_value(AttributeId::Height),
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) {
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let width_in_mm = length_to_mm(width, options.dpi);
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let height_in_mm = length_to_mm(height, options.dpi);
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turtle.stack_scaling(
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euclid::Transform2D::create_scale(width_in_mm, -height_in_mm)
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.post_translate(math::vector(0.0, height_in_mm)),
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);
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}
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}
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}
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// Display named elements in GCode comments
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if let ElementId::G = id {
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let mut transforms = vec![];
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if is_start {
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if let Some(view_box) = node.attribute("viewBox") {
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name_stack.push(format!("{}#{}", node.tag_name(), node.id().to_string()));
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let view_box = ViewBox::from_str(view_box).expect("could not parse viewBox");
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} else {
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transforms.push(
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name_stack.pop();
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Transform2D::create_scale(1. / view_box.w, 1. / view_box.h)
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}
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.post_translate(math::vector(view_box.x, view_box.y)),
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);
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}
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}
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if let Some(&AttributeValue::Transform(ref transform)) =
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attributes.get_value(AttributeId::Transform)
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if let Some(transform) = width_and_height_into_transform(&options, &node) {
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{
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transforms.push(transform);
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if is_start {
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}
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turtle.push_transform(lyon_geom::euclid::Transform2D::row_major(
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transform.a,
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if let Some(transform) = node.attribute("transform") {
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transform.b,
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let parser = TransformListParser::from(transform);
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transform.c,
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transforms.append(
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transform.d,
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&mut parser
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transform.e,
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.map(|token| {
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transform.f,
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token.expect("could not parse a transform in a list of transforms")
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));
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})
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} else {
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.map(svg_transform_into_euclid_transform)
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turtle.pop_transform();
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.collect(),
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}
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)
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}
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if transforms.len() != 0 {
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let transform = transforms
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.iter()
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.fold(Transform2D::identity(), |acc, t| acc.post_transform(t));
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turtle.push_transform(transform);
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}
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}
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let is_clip_path = node.ancestors().any(|ancestor| {
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if node.tag_name().name() == "path" {
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if let svgdom::QName::Id(ancestor_id) = *ancestor.tag_name() {
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if let Some(d) = node.attribute("d") {
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ancestor_id == ElementId::ClipPath
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turtle.reset();
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let mut comment = String::new();
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name_stack.iter().for_each(|name| {
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comment += name;
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comment += " > ";
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});
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comment += &node_name(&node);
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program.push(command!(CommandWord::Comment(Box::new(comment)), {}));
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program.append(&mut apply_path(&mut turtle, &options, d));
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} else {
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} else {
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false
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warn!("There is a path node containing no actual path: {:?}", node);
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}
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});
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if node.is_graphic() && is_start && !is_clip_path {
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match id {
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ElementId::Path => {
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if let Some(&AttributeValue::Path(ref path)) =
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attributes.get_value(AttributeId::D)
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{
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let prefix: String =
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name_stack.iter().fold(String::new(), |mut acc, name| {
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acc += name;
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acc += " => ";
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acc
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});
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program.push(command!(
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CommandWord::Comment(Box::new(prefix + &node.id())),
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{}
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));
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turtle.reset();
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for segment in path.iter() {
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program.append(&mut match segment {
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PathSegment::MoveTo { abs, x, y } => turtle.move_to(*abs, *x, *y),
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PathSegment::ClosePath { abs: _ } => {
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// Ignore abs, should have identical effect: [9.3.4. The "closepath" command]("https://www.w3.org/TR/SVG/paths.html#PathDataClosePathCommand)
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turtle.close(None, options.feedrate)
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}
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PathSegment::LineTo { abs, x, y } => {
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turtle.line(*abs, *x, *y, None, options.feedrate)
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}
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PathSegment::HorizontalLineTo { abs, x } => {
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turtle.line(*abs, *x, None, None, options.feedrate)
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}
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PathSegment::VerticalLineTo { abs, y } => {
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turtle.line(*abs, None, *y, None, options.feedrate)
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}
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PathSegment::CurveTo {
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abs,
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x1,
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y1,
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x2,
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y2,
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x,
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y,
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} => turtle.cubic_bezier(
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*abs,
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*x1,
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*y1,
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*x2,
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*y2,
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*x,
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*y,
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options.tolerance,
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None,
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options.feedrate,
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),
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PathSegment::SmoothCurveTo { abs, x2, y2, x, y } => turtle
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.smooth_cubic_bezier(
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*abs,
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*x2,
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*y2,
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*x,
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*y,
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options.tolerance,
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None,
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options.feedrate,
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),
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PathSegment::Quadratic { abs, x1, y1, x, y } => turtle
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.quadratic_bezier(
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*abs,
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*x1,
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*y1,
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*x,
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*y,
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options.tolerance,
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None,
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options.feedrate,
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),
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PathSegment::SmoothQuadratic { abs, x, y } => turtle
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.smooth_quadratic_bezier(
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*abs,
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*x,
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*y,
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options.tolerance,
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None,
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options.feedrate,
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),
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PathSegment::EllipticalArc {
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abs,
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rx,
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ry,
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x_axis_rotation,
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large_arc,
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sweep,
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x,
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y,
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} => turtle.elliptical(
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*abs,
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*rx,
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*ry,
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*x_axis_rotation,
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*large_arc,
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*sweep,
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*x,
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*y,
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None,
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|
|
|
|
options.feedrate,
|
|
|
|
|
|
|
|
options.tolerance,
|
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|
|
|
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|
),
|
|
|
|
|
|
|
|
});
|
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|
|
|
|
|
}
|
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|
|
|
|
|
|
}
|
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|
|
|
|
|
}
|
|
|
|
|
|
|
|
_ => {
|
|
|
|
|
|
|
|
warn!("Node <{} id=\"{}\" .../> is not supported", id, node.id());
|
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|
|
|
|
|
|
}
|
|
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|
|
|
|
|
}
|
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|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
if node.has_children() {
|
|
|
|
|
|
|
|
node_stack.push((node, node.children()));
|
|
|
|
|
|
|
|
name_stack.push(node_name(&node));
|
|
|
|
|
|
|
|
} else if transforms.len() != 0 {
|
|
|
|
|
|
|
|
// Pop transform early, since this is the only element that has it
|
|
|
|
|
|
|
|
turtle.pop_transform();
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
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|
|
// Critical step for actually move the machine back to the origin
|
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|
|
|
|
|
|
|
|
|
|
// Critical step for actually moving the machine back to the origin, just in case SVG is malformed
|
|
|
|
turtle.pop_all_transforms();
|
|
|
|
turtle.pop_all_transforms();
|
|
|
|
program.append(&mut turtle.machine.tool_off());
|
|
|
|
program.append(&mut turtle.machine.tool_off());
|
|
|
|
program.append(&mut turtle.machine.absolute());
|
|
|
|
program.append(&mut turtle.machine.absolute());
|
|
|
|
@ -225,12 +138,157 @@ pub fn svg2program(doc: &svgdom::Document, options: ProgramOptions, mach: Machin
|
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|
|
program
|
|
|
|
program
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
fn node_name(node: &Node) -> String {
|
|
|
|
|
|
|
|
let mut name = node.tag_name().name().to_string();
|
|
|
|
|
|
|
|
if let Some(id) = node.attribute("id") {
|
|
|
|
|
|
|
|
name += "#";
|
|
|
|
|
|
|
|
name += id;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
name
|
|
|
|
|
|
|
|
}
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
fn width_and_height_into_transform(
|
|
|
|
|
|
|
|
options: &ProgramOptions,
|
|
|
|
|
|
|
|
node: &Node,
|
|
|
|
|
|
|
|
) -> Option<Transform2D<f64>> {
|
|
|
|
|
|
|
|
if let (Some(mut width), Some(mut height)) = (
|
|
|
|
|
|
|
|
node.attribute("width").map(LengthListParser::from),
|
|
|
|
|
|
|
|
node.attribute("height").map(LengthListParser::from),
|
|
|
|
|
|
|
|
) {
|
|
|
|
|
|
|
|
let width = width
|
|
|
|
|
|
|
|
.next()
|
|
|
|
|
|
|
|
.expect("no width in width property")
|
|
|
|
|
|
|
|
.expect("cannot parse width");
|
|
|
|
|
|
|
|
let height = height
|
|
|
|
|
|
|
|
.next()
|
|
|
|
|
|
|
|
.expect("no height in height property")
|
|
|
|
|
|
|
|
.expect("cannot parse height");
|
|
|
|
|
|
|
|
let width_in_mm = length_to_mm(width, options.dpi);
|
|
|
|
|
|
|
|
let height_in_mm = length_to_mm(height, options.dpi);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Some(
|
|
|
|
|
|
|
|
Transform2D::create_scale(width_in_mm, -height_in_mm)
|
|
|
|
|
|
|
|
.post_translate(math::vector(0f64, height_in_mm)),
|
|
|
|
|
|
|
|
)
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
fn apply_path<'a>(turtle: &mut Turtle, options: &ProgramOptions, path: &'a str) -> Vec<Command> {
|
|
|
|
|
|
|
|
use PathSegment::*;
|
|
|
|
|
|
|
|
PathParser::from(path)
|
|
|
|
|
|
|
|
.map(|segment| segment.expect("could not parse path segment"))
|
|
|
|
|
|
|
|
.map(|segment| {
|
|
|
|
|
|
|
|
match segment {
|
|
|
|
|
|
|
|
MoveTo { abs, x, y } => turtle.move_to(abs, x, y),
|
|
|
|
|
|
|
|
ClosePath { abs: _ } => {
|
|
|
|
|
|
|
|
// Ignore abs, should have identical effect: [9.3.4. The "closepath" command]("https://www.w3.org/TR/SVG/paths.html#PathDataClosePathCommand)
|
|
|
|
|
|
|
|
turtle.close(None, options.feedrate)
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
LineTo { abs, x, y } => turtle.line(abs, x, y, None, options.feedrate),
|
|
|
|
|
|
|
|
HorizontalLineTo { abs, x } => turtle.line(abs, x, None, None, options.feedrate),
|
|
|
|
|
|
|
|
VerticalLineTo { abs, y } => turtle.line(abs, None, y, None, options.feedrate),
|
|
|
|
|
|
|
|
CurveTo {
|
|
|
|
|
|
|
|
abs,
|
|
|
|
|
|
|
|
x1,
|
|
|
|
|
|
|
|
y1,
|
|
|
|
|
|
|
|
x2,
|
|
|
|
|
|
|
|
y2,
|
|
|
|
|
|
|
|
x,
|
|
|
|
|
|
|
|
y,
|
|
|
|
|
|
|
|
} => turtle.cubic_bezier(
|
|
|
|
|
|
|
|
abs,
|
|
|
|
|
|
|
|
x1,
|
|
|
|
|
|
|
|
y1,
|
|
|
|
|
|
|
|
x2,
|
|
|
|
|
|
|
|
y2,
|
|
|
|
|
|
|
|
x,
|
|
|
|
|
|
|
|
y,
|
|
|
|
|
|
|
|
options.tolerance,
|
|
|
|
|
|
|
|
None,
|
|
|
|
|
|
|
|
options.feedrate,
|
|
|
|
|
|
|
|
),
|
|
|
|
|
|
|
|
SmoothCurveTo { abs, x2, y2, x, y } => turtle.smooth_cubic_bezier(
|
|
|
|
|
|
|
|
abs,
|
|
|
|
|
|
|
|
x2,
|
|
|
|
|
|
|
|
y2,
|
|
|
|
|
|
|
|
x,
|
|
|
|
|
|
|
|
y,
|
|
|
|
|
|
|
|
options.tolerance,
|
|
|
|
|
|
|
|
None,
|
|
|
|
|
|
|
|
options.feedrate,
|
|
|
|
|
|
|
|
),
|
|
|
|
|
|
|
|
Quadratic { abs, x1, y1, x, y } => turtle.quadratic_bezier(
|
|
|
|
|
|
|
|
abs,
|
|
|
|
|
|
|
|
x1,
|
|
|
|
|
|
|
|
y1,
|
|
|
|
|
|
|
|
x,
|
|
|
|
|
|
|
|
y,
|
|
|
|
|
|
|
|
options.tolerance,
|
|
|
|
|
|
|
|
None,
|
|
|
|
|
|
|
|
options.feedrate,
|
|
|
|
|
|
|
|
),
|
|
|
|
|
|
|
|
SmoothQuadratic { abs, x, y } => turtle.smooth_quadratic_bezier(
|
|
|
|
|
|
|
|
abs,
|
|
|
|
|
|
|
|
x,
|
|
|
|
|
|
|
|
y,
|
|
|
|
|
|
|
|
options.tolerance,
|
|
|
|
|
|
|
|
None,
|
|
|
|
|
|
|
|
options.feedrate,
|
|
|
|
|
|
|
|
),
|
|
|
|
|
|
|
|
EllipticalArc {
|
|
|
|
|
|
|
|
abs,
|
|
|
|
|
|
|
|
rx,
|
|
|
|
|
|
|
|
ry,
|
|
|
|
|
|
|
|
x_axis_rotation,
|
|
|
|
|
|
|
|
large_arc,
|
|
|
|
|
|
|
|
sweep,
|
|
|
|
|
|
|
|
x,
|
|
|
|
|
|
|
|
y,
|
|
|
|
|
|
|
|
} => turtle.elliptical(
|
|
|
|
|
|
|
|
abs,
|
|
|
|
|
|
|
|
rx,
|
|
|
|
|
|
|
|
ry,
|
|
|
|
|
|
|
|
x_axis_rotation,
|
|
|
|
|
|
|
|
large_arc,
|
|
|
|
|
|
|
|
sweep,
|
|
|
|
|
|
|
|
x,
|
|
|
|
|
|
|
|
y,
|
|
|
|
|
|
|
|
None,
|
|
|
|
|
|
|
|
options.feedrate,
|
|
|
|
|
|
|
|
options.tolerance,
|
|
|
|
|
|
|
|
),
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
})
|
|
|
|
|
|
|
|
.flatten()
|
|
|
|
|
|
|
|
.collect()
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
fn svg_transform_into_euclid_transform(svg_transform: TransformListToken) -> Transform2D<f64> {
|
|
|
|
|
|
|
|
use TransformListToken::*;
|
|
|
|
|
|
|
|
match svg_transform {
|
|
|
|
|
|
|
|
Matrix { a, b, c, d, e, f } => Transform2D::row_major(a, b, c, d, e, f),
|
|
|
|
|
|
|
|
Translate { tx, ty } => Transform2D::create_translation(tx, ty),
|
|
|
|
|
|
|
|
Scale { sx, sy } => Transform2D::create_scale(sx, sy),
|
|
|
|
|
|
|
|
Rotate { angle } => Transform2D::create_rotation(Angle::degrees(angle)),
|
|
|
|
|
|
|
|
SkewX { angle } => {
|
|
|
|
|
|
|
|
warn!("Skew X might not be implemented correctly, please check the GCode output.");
|
|
|
|
|
|
|
|
Transform3D::create_skew(Angle::degrees(angle), Angle::degrees(0f64)).to_2d()
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
SkewY { angle } => {
|
|
|
|
|
|
|
|
warn!("Skew Y might not be implemented correctly, please check the GCode output.");
|
|
|
|
|
|
|
|
Transform3D::create_skew(Angle::degrees(0f64), Angle::degrees(angle)).to_2d()
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/// Convenience function for converting absolute lengths to millimeters
|
|
|
|
/// Convenience function for converting absolute lengths to millimeters
|
|
|
|
/// Absolute lengths are listed in [CSS 4 §6.2](https://www.w3.org/TR/css-values/#absolute-lengths)
|
|
|
|
/// Absolute lengths are listed in [CSS 4 §6.2](https://www.w3.org/TR/css-values/#absolute-lengths)
|
|
|
|
/// Relative lengths in [CSS 4 §6.1](https://www.w3.org/TR/css-values/#relative-lengths) are not supported and will cause a panic.
|
|
|
|
/// Relative lengths in [CSS 4 §6.1](https://www.w3.org/TR/css-values/#relative-lengths) are not supported and will cause a panic.
|
|
|
|
/// A default DPI of 96 is used as per [CSS 4 §7.4](https://www.w3.org/TR/css-values/#resolution), which you can adjust with --dpi
|
|
|
|
/// A default DPI of 96 is used as per [CSS 4 §7.4](https://www.w3.org/TR/css-values/#resolution), which you can adjust with --dpi
|
|
|
|
fn length_to_mm(l: svgdom::Length, dpi: f64) -> f64 {
|
|
|
|
fn length_to_mm(l: svgtypes::Length, dpi: f64) -> f64 {
|
|
|
|
use svgdom::LengthUnit::*;
|
|
|
|
use svgtypes::LengthUnit::*;
|
|
|
|
use uom::si::f64::Length;
|
|
|
|
use uom::si::f64::Length;
|
|
|
|
use uom::si::length::*;
|
|
|
|
use uom::si::length::*;
|
|
|
|
|
|
|
|
|
|
|
|
|
Sameer Puri
5 years ago