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Image Trace: centre-lines quality measures Create Strokes' split on a mixed-width body
The centre-lines class gains a mixed-width body scene: one disc of radius 24 px with arms of 2, 3 and 5 px that start inside it, Stroke 6 px, and no other ink. A test checks that the scene is one connected shape and that both the anti-aliased and hard input trace as one fill and three strokes that reach all three free ends. docs/image-trace-quality.md's centre-lines section is measured again on current main (24 scenes, two runs identical in every column but ms). The new scene finds 100.0% of its arms with 99.3% / 98.3% of the disc filled; mix now traces as 6+3 paths with 99.9% / 99.8% found and 7/7 ends, where the earlier whole-blob rows showed 3+1, 57.3% and 6/7. All other rows are unchanged except ms.
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dotCooCoo
@@ -425,7 +425,7 @@ pub fn report() -> String {
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}
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}
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let mut md = String::from(
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"## Centre lines\n\nCode-drawn scenes only: 23 scenes, each anti-aliased (8×8 coverage samples) and hard (that coverage thresholded at 0.5). Coordinates, widths and scene Stroke values are fixed; junction/letter/crossing coordinates include the 0.27/0.41 px offset. Create Fills and Strokes are on, Stroke is the scene's limit (13 px, mix 6 px, varying 12 px), Black and White threshold 128, Noise 4, Ignore White on, other settings at their defaults. Today's tracer has no minimum-length setting (the dashed scenes specify 0 for future use).\n\nDistances use dense exact centre samples (≤0.25 px), emitted curves sampled at ≤0.5 px control-polygon steps, and nearest-point searches capped at 30 px. Found is the fraction of true samples within 1.5 px; width errors use output samples within 2 px of a true stroke. Samples inside exact fills are excluded. Topology is recovered from emitted subpath endpoints and intersections, merging coincident positions within 0.05 px; an endpoint contributes one arm, an interior two. Junction matching radius is local true width + 3 px; ends use half-width + 4 px. Each match is used once. Free ends exclude true junctions, corners, other strokes and fills; unmatched emitted ends are spurs. Junctions/ends within 2 px of fills are excluded. End error is distance, with signed error along the outward tangent in parentheses. Coverage is a union of painted output at pixel centres (0.02 px flattening tolerance, actual emitted caps), compared with the exact swept shape at pixel centres, for both input variants. Area error is signed relative to exact area. Anchors counts stroke anchors, including all compound subpaths; paths counts stroked + filled paths. Time covers tracing only, one scene at a time. Profile-dependent columns are unavailable (–).\n\n### Centre line and width (px)\n\n| scene | input | paths | out→true mean / p95 | true→out mean / p95 | found % | width err uniform mean / p95 | variable mean / p95 | profile mean |\n|---|---|---|---|---|---|---|---|---|\n",
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"## Centre lines\n\nCode-drawn scenes only: 24 scenes, each anti-aliased (8×8 coverage samples) and hard (that coverage thresholded at 0.5). Coordinates, widths and scene Stroke values are fixed; junction/letter/crossing/mixed-width body coordinates include the 0.27/0.41 px offset. Create Fills and Strokes are on, Stroke is the scene's limit (13 px, mix and mixed-width body 6 px, varying 12 px), Black and White threshold 128, Noise 4, Ignore White on, other settings at their defaults. Today's tracer has no minimum-length setting (the dashed scenes specify 0 for future use).\n\nDistances use dense exact centre samples (≤0.25 px), emitted curves sampled at ≤0.5 px control-polygon steps, and nearest-point searches capped at 30 px. Found is the fraction of true samples within 1.5 px; width errors use output samples within 2 px of a true stroke. Samples inside exact fills are excluded. Topology is recovered from emitted subpath endpoints and intersections, merging coincident positions within 0.05 px; an endpoint contributes one arm, an interior two. Junction matching radius is local true width + 3 px; ends use half-width + 4 px. Each match is used once. Free ends exclude true junctions, corners, other strokes and fills; unmatched emitted ends are spurs. Junctions/ends within 2 px of fills are excluded. End error is distance, with signed error along the outward tangent in parentheses. Coverage is a union of painted output at pixel centres (0.02 px flattening tolerance, actual emitted caps), compared with the exact swept shape at pixel centres, for both input variants. Area error is signed relative to exact area. Anchors counts stroke anchors, including all compound subpaths; paths counts stroked + filled paths. Time covers tracing only, one scene at a time. Profile-dependent columns are unavailable (–).\n\n### Centre line and width (px)\n\n| scene | input | paths | out→true mean / p95 | true→out mean / p95 | found % | width err uniform mean / p95 | variable mean / p95 | profile mean |\n|---|---|---|---|---|---|---|---|---|\n",
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);
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for m in &rows {
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writeln!(
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@@ -544,7 +544,44 @@ fn known_geometry_measures_junctions_ends_missing_ink_and_caps() {
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let square = render(&TraceResult { paths: vec![TracedPath { square_caps: true, ..diagonal }], ..Default::default() }, 50, 50, false);
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assert!(square.iter().filter(|p| **p).count() > round.iter().filter(|p| **p).count());
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// Preserve the exact catalogue and special scene limits.
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assert_eq!(scenes::all().len(), 23);
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assert_eq!((scenes::mix().wmax, scenes::varying().wmax, scenes::dashed(2.0).min_len), (6.0, 12.0, 0.0));
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assert_eq!(scenes::all().len(), 24);
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assert_eq!((scenes::mix().wmax, scenes::mixed_width_body().wmax, scenes::varying().wmax, scenes::dashed(2.0).min_len), (6.0, 6.0, 12.0, 0.0));
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assert_eq!(scenes::junctions(4.0).junctions[0].0, P::new(60.27, 40.41));
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}
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#[test]
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fn mixed_width_body_is_one_shape_traced_as_a_fill_and_strokes() {
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let sc = scenes::mixed_width_body();
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assert_eq!((sc.fills.len(), sc.strokes.len(), sc.junctions.len(), sc.corners.len()), (1, 3, 0, 0));
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let cov = sc.rasterise();
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let hard: Vec<f32> = cov.iter().map(|&c| if c >= 0.5 { 1.0 } else { 0.0 }).collect();
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// The inked pixels form one 8-connected component.
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let ink: Vec<bool> = hard.iter().map(|&c| c > 0.0).collect();
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let start = ink.iter().position(|&v| v).unwrap();
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let mut seen = vec![false; ink.len()];
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let mut stack = vec![start];
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seen[start] = true;
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let mut reached = 0;
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while let Some(i) = stack.pop() {
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reached += 1;
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let (x, y) = ((i % sc.w) as i64, (i / sc.w) as i64);
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for (dx, dy) in [(-1, -1), (0, -1), (1, -1), (-1, 0), (1, 0), (-1, 1), (0, 1), (1, 1)] {
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let (nx, ny) = (x + dx, y + dy);
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if nx < 0 || ny < 0 || nx >= sc.w as i64 || ny >= sc.h as i64 {
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continue;
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}
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let j = ny as usize * sc.w + nx as usize;
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if ink[j] && !seen[j] {
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seen[j] = true;
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stack.push(j);
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}
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}
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}
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assert_eq!(reached, ink.iter().filter(|&&v| v).count());
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// Create Strokes splits the shape: its body is one fill and each arm is a stroke reaching its free end.
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for (input, c) in [("aa", &cov), ("hard", &hard)] {
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let m = evaluate(&sc, input, c);
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assert_eq!((m.strokes, m.fills, m.ends_gt, m.ends_found), (3, 1, 3, 3), "{m:?}");
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assert!(m.complete > 0.95 && m.fill_as_fill > 0.95, "{m:?}");
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}
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}
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@@ -388,6 +388,19 @@ pub fn mix() -> Scene {
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s
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}
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/// One connected shape: a wide disc with three thin arms of 2, 3 and 5 px reaching out of it,
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/// and nothing else; Stroke width 6.
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pub fn mixed_width_body() -> Scene {
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let mut s = Scene::new("mixed-width body", 260, 220, 6.0);
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s.offset = P::new(0.27, 0.41);
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let c = P::new(100.0, 100.0);
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s.fills.push(GtFill::Disc(c + s.offset, 24.0));
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s.line(&[c, P::new(220.0, 100.0)], 3.0);
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s.line(&[c, P::new(100.0, 20.0)], 5.0);
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s.line(&[c, P::new(25.0, 185.0)], 2.0);
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s
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}
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/// Strokes whose width varies: tapers, a lens, a swelling brush curve; Stroke width 12.
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pub fn varying() -> Scene {
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let mut s = Scene::new("varying", 480, 300, 12.0);
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@@ -441,6 +454,7 @@ pub fn all() -> Vec<Scene> {
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v.push(letters(w));
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}
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v.push(mix());
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v.push(mixed_width_body());
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v.push(varying());
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v
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}
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+64
-54
@@ -1240,8 +1240,10 @@ One trace at a time on this machine (all cores); memory is the peak allocated ab
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## Centre lines
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Measured 2026-10-17 with maximal-disc pruning and junction merging, against base `3e44478f`.
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Earlier preset and cost tables retain their previous measurements. Regenerate only this class:
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Measured 2026-11-13 against `1e4e3534`, with Create Strokes deciding stroke or fill per feature.
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Two runs gave identical rows in every column but ms, which varies between runs. Earlier preset and
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cost tables retain their previous measurements.
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Regenerate only this class:
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```text
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TRACE_QUALITY_CLASS=centre-lines TRACE_QUALITY_REPORT=centre-lines.md cargo test --release -p vectorcraft-trace --test quality quality_report -- --ignored --nocapture
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@@ -1252,9 +1254,13 @@ branches shorter than `r + max(2, 0.5 × min(2r, Stroke))` are pruned, shortest
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self-loops inside the junction disc are removed; overlapping junctions and geometrically split
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crossings merge, and runs join through degree-two nodes. Simplification is bounded to 32 rounds;
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nodes and branches are each capped at 200,000. An over-budget blob stays with the fill path.
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Whole-blob selection, ink refinement, cap detection and curve fitting retain their current rules.
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A blob wider than Stroke keeps its wide part as a fill, and its thin features are traced as
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strokes. The mixed-width body scene measures that split on its own: one disc of radius 24 px with
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three arms of 2, 3 and 5 px that start inside it, Stroke 6 px, and no other ink. Its found % covers
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the arms outside the disc, its fill→fill % covers the disc, and its paths column counts both kinds.
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Ink refinement, cap detection and curve fitting retain their current rules.
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Code-drawn scenes only: 23 scenes, each anti-aliased (8×8 coverage samples) and hard (that coverage thresholded at 0.5). Coordinates, widths and scene Stroke values are fixed; junction/letter/crossing coordinates include the 0.27/0.41 px offset. Create Fills and Strokes are on, Stroke is the scene's limit (13 px, mix 6 px, varying 12 px), Black and White threshold 128, Noise 4, Ignore White on, other settings at their defaults. Today's tracer has no minimum-length setting (the dashed scenes specify 0 for future use).
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Code-drawn scenes only: 24 scenes, each anti-aliased (8×8 coverage samples) and hard (that coverage thresholded at 0.5). Coordinates, widths and scene Stroke values are fixed; junction/letter/crossing/mixed-width body coordinates include the 0.27/0.41 px offset. Create Fills and Strokes are on, Stroke is the scene's limit (13 px, mix and mixed-width body 6 px, varying 12 px), Black and White threshold 128, Noise 4, Ignore White on, other settings at their defaults. Today's tracer has no minimum-length setting (the dashed scenes specify 0 for future use).
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Distances use dense exact centre samples (≤0.25 px), emitted curves sampled at ≤0.5 px control-polygon steps, and nearest-point searches capped at 30 px. Found is the fraction of true samples within 1.5 px; width errors use output samples within 2 px of a true stroke. Samples inside exact fills are excluded. Topology is recovered from emitted subpath endpoints and intersections, merging coincident positions within 0.05 px; an endpoint contributes one arm, an interior two. Junction matching radius is local true width + 3 px; ends use half-width + 4 px. Each match is used once. Free ends exclude true junctions, corners, other strokes and fills; unmatched emitted ends are spurs. Junctions/ends within 2 px of fills are excluded. End error is distance, with signed error along the outward tangent in parentheses. Coverage is a union of painted output at pixel centres (0.02 px flattening tolerance, actual emitted caps), compared with the exact swept shape at pixel centres, for both input variants. Area error is signed relative to exact area. Anchors counts stroke anchors, including all compound subpaths; paths counts stroked + filled paths. Time covers tracing only, one scene at a time. Profile-dependent columns are unavailable (–).
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@@ -1304,8 +1310,10 @@ Distances use dense exact centre samples (≤0.25 px), emitted curves sampled at
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| letters w3 | hard | 7+0 | 0.33 / 0.92 | 0.34 / 0.71 | 99.0 | 0.06 / 0.20 | – | – |
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| letters w5 | aa | 7+0 | 0.27 / 1.49 | 0.29 / 1.31 | 95.9 | 0.02 / 0.20 | – | – |
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| letters w5 | hard | 7+0 | 0.40 / 1.48 | 0.41 / 1.29 | 96.2 | 0.05 / 0.20 | – | – |
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| mix | aa | 3+1 | 0.10 / 0.21 | 12.89 / 30.00 | 57.3 | 0.03 / 0.14 | – | – |
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| mix | hard | 3+1 | 0.22 / 0.43 | 12.95 / 30.00 | 57.3 | 0.08 / 0.15 | – | – |
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| mix | aa | 6+3 | 0.09 / 0.19 | 0.15 / 0.28 | 99.9 | 0.02 / 0.14 | – | – |
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| mix | hard | 6+3 | 0.24 / 0.52 | 0.28 / 0.56 | 99.8 | 0.07 / 0.20 | – | – |
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| mixed-width body | aa | 3+1 | 0.09 / 0.27 | 0.15 / 0.31 | 100.0 | 0.05 / 0.14 | – | – |
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| mixed-width body | hard | 3+1 | 0.18 / 0.42 | 0.22 / 0.42 | 100.0 | 0.05 / 0.12 | – | – |
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| varying | aa | 5+0 | 0.13 / 0.28 | 0.19 / 0.31 | 99.5 | 1.89 / 4.13 | – | – |
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| varying | hard | 5+0 | 0.20 / 0.51 | 0.24 / 0.52 | 99.7 | 1.90 / 4.22 | – | – |
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@@ -1313,56 +1321,58 @@ Distances use dense exact centre samples (≤0.25 px), emitted curves sampled at
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| scene | input | junctions ok / wrong deg / missed / extra | junction pos err | ends found | end err (signed) | spurs | IoU uniform / profile | area err uniform / profile | fill→fill % | anchors | width pts | ms |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|
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| lines w1 | aa | 0 / 0 / 0 / 76 | – | 43/48 | 0.71 (-0.69) | 88 | 0.790 / – | -6.2% / – | – | 186 | – | 4.6 |
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| lines w1 | hard | 0 / 0 / 0 / 0 | – | 42/48 | 1.50 (-1.42) | 142 | 0.644 / – | -25.8% / – | – | 184 | – | 3.6 |
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| lines w2 | aa | 0 / 0 / 0 / 0 | – | 48/48 | 0.32 (-0.20) | 0 | 0.914 / – | -0.3% / – | – | 71 | – | 4.3 |
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| lines w2 | hard | 0 / 0 / 0 / 0 | – | 48/48 | 0.38 (-0.10) | 0 | 0.808 / – | -2.0% / – | – | 58 | – | 4.2 |
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| lines w3 | aa | 0 / 0 / 0 / 0 | – | 48/48 | 0.26 (-0.17) | 0 | 0.931 / – | -3.0% / – | – | 64 | – | 4.4 |
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| lines w3 | hard | 0 / 0 / 0 / 0 | – | 48/48 | 0.46 (-0.24) | 0 | 0.881 / – | -2.5% / – | – | 50 | – | 4.3 |
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| lines w4 | aa | 0 / 0 / 0 / 0 | – | 48/48 | 0.25 (-0.18) | 0 | 0.964 / – | -0.6% / – | – | 70 | – | 4.6 |
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| lines w4 | hard | 0 / 0 / 0 / 0 | – | 48/48 | 0.40 (-0.15) | 0 | 0.906 / – | -0.1% / – | – | 54 | – | 4.5 |
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| lines w6 | aa | 0 / 0 / 0 / 0 | – | 48/48 | 0.30 (-0.18) | 0 | 0.965 / – | -0.3% / – | – | 65 | – | 5.1 |
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| lines w6 | hard | 0 / 0 / 0 / 0 | – | 48/48 | 0.45 (-0.12) | 0 | 0.923 / – | 1.4% / – | – | 55 | – | 4.9 |
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| lines w8 | aa | 0 / 0 / 0 / 0 | – | 48/48 | 0.37 (-0.20) | 0 | 0.967 / – | -1.0% / – | – | 66 | – | 5.4 |
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| lines w8 | hard | 0 / 0 / 0 / 0 | – | 48/48 | 0.46 (-0.18) | 0 | 0.934 / – | -0.3% / – | – | 53 | – | 5.4 |
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| lines w10 | aa | 0 / 0 / 0 / 0 | – | 48/48 | 0.35 (-0.16) | 0 | 0.969 / – | -0.7% / – | – | 66 | – | 5.9 |
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| lines w10 | hard | 0 / 0 / 0 / 0 | – | 48/48 | 0.50 (-0.12) | 0 | 0.942 / – | -0.1% / – | – | 52 | – | 5.9 |
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| lines w12 | aa | 0 / 0 / 0 / 0 | – | 48/48 | 0.40 (-0.16) | 0 | 0.969 / – | -0.6% / – | – | 70 | – | 6.4 |
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| lines w12 | hard | 0 / 0 / 0 / 0 | – | 48/48 | 0.54 (-0.11) | 0 | 0.949 / – | -0.2% / – | – | 53 | – | 6.3 |
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| curves w2 | aa | 0 / 0 / 0 / 0 | – | 8/8 | 0.18 (-0.13) | 0 | 0.921 / – | -0.6% / – | – | 34 | – | 4.7 |
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| curves w2 | hard | 0 / 0 / 0 / 0 | – | 8/8 | 0.22 (-0.05) | 0 | 0.821 / – | -2.4% / – | – | 29 | – | 4.7 |
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| curves w4 | aa | 0 / 0 / 0 / 0 | – | 8/8 | 0.56 (-0.42) | 0 | 0.949 / – | -0.8% / – | – | 35 | – | 5.1 |
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| curves w4 | hard | 0 / 0 / 0 / 0 | – | 8/8 | 0.66 (-0.38) | 0 | 0.904 / – | -0.5% / – | – | 30 | – | 5.2 |
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| curves w8 | aa | 0 / 0 / 0 / 0 | – | 8/8 | 2.24 (-2.01) | 0 | 0.956 / – | -0.9% / – | – | 42 | – | 5.9 |
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| curves w8 | hard | 0 / 0 / 0 / 0 | – | 8/8 | 1.97 (-1.67) | 0 | 0.936 / – | -0.5% / – | – | 31 | – | 5.9 |
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| circles | aa | 0 / 0 / 0 / 0 | – | 0/0 | – (–) | 32 | 0.964 / – | -0.9% / – | – | 71 | – | 7.4 |
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| circles | hard | 0 / 0 / 0 / 0 | – | 0/0 | – (–) | 28 | 0.888 / – | -0.7% / – | – | 52 | – | 8.0 |
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| junctions w2 | aa | 7 / 0 / 0 / 0 | 1.17 | 23/23 | 0.32 (-0.16) | 0 | 0.889 / – | 6.1% / – | – | 84 | – | 3.7 |
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| junctions w2 | hard | 7 / 0 / 0 / 0 | 1.17 | 23/23 | 0.49 (-0.15) | 0 | 0.771 / – | 4.9% / – | – | 59 | – | 3.6 |
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| junctions w4 | aa | 7 / 0 / 0 / 1 | 1.62 | 23/23 | 0.33 (-0.26) | 0 | 0.919 / – | 5.0% / – | – | 100 | – | 4.1 |
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| junctions w4 | hard | 7 / 0 / 0 / 1 | 1.62 | 23/23 | 0.65 (-0.32) | 0 | 0.850 / – | 7.0% / – | – | 81 | – | 4.0 |
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| junctions w8 | aa | 7 / 0 / 0 / 2 | 2.76 | 23/23 | 0.43 (-0.27) | 0 | 0.937 / – | 2.7% / – | – | 93 | – | 4.7 |
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| junctions w8 | hard | 7 / 0 / 0 / 1 | 2.76 | 23/23 | 0.80 (-0.35) | 0 | 0.913 / – | 2.5% / – | – | 77 | – | 4.7 |
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| crossings w3 | aa | 5 / 0 / 0 / 2 | 0.25 | 20/20 | 0.27 (-0.18) | 0 | 0.935 / – | -1.1% / – | – | 74 | – | 2.8 |
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| crossings w3 | hard | 5 / 0 / 0 / 5 | 0.25 | 20/20 | 0.41 (-0.17) | 0 | 0.791 / – | -7.6% / – | – | 69 | – | 2.8 |
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| crossings w6 | aa | 5 / 0 / 0 / 1 | 0.25 | 20/20 | 0.35 (-0.17) | 0 | 0.925 / – | -3.6% / – | – | 112 | – | 3.3 |
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| crossings w6 | hard | 5 / 0 / 0 / 4 | 0.25 | 20/20 | 0.51 (-0.20) | 0 | 0.872 / – | -2.0% / – | – | 81 | – | 3.4 |
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| dashed w2 | aa | 0 / 0 / 0 / 0 | – | 62/62 | 0.28 (-0.20) | 0 | 0.927 / – | -2.6% / – | – | 64 | – | 2.0 |
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| dashed w2 | hard | 0 / 0 / 0 / 0 | – | 62/62 | 0.33 (-0.11) | 0 | 0.926 / – | -3.6% / – | – | 67 | – | 1.9 |
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| dashed w4 | aa | 0 / 0 / 0 / 0 | – | 58/58 | 0.30 (-0.20) | 0 | 0.952 / – | -0.1% / – | – | 61 | – | 2.1 |
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| dashed w4 | hard | 0 / 0 / 0 / 0 | – | 58/58 | 0.37 (-0.08) | 0 | 0.944 / – | -1.5% / – | – | 60 | – | 2.1 |
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| letters w3 | aa | 7 / 0 / 0 / 6 | 1.47 | 17/17 | 0.62 (-0.47) | 1 | 0.923 / – | -0.9% / – | – | 114 | – | 3.3 |
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| letters w3 | hard | 7 / 0 / 0 / 3 | 1.47 | 17/17 | 0.38 (-0.21) | 1 | 0.859 / – | -0.6% / – | – | 81 | – | 3.3 |
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| letters w5 | aa | 6 / 1 / 0 / 6 | 2.10 | 17/17 | 0.99 (-0.83) | 0 | 0.929 / – | -1.7% / – | – | 124 | – | 3.7 |
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| letters w5 | hard | 6 / 1 / 0 / 8 | 2.10 | 17/17 | 1.05 (-0.79) | 0 | 0.887 / – | -2.0% / – | – | 100 | – | 3.7 |
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| mix | aa | 0 / 0 / 0 / 0 | – | 6/7 | 0.24 (-0.17) | 0 | 0.986 / – | 0.1% / – | 99.7 | 11 | – | 6.5 |
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| mix | hard | 0 / 0 / 0 / 0 | – | 6/7 | 0.57 (-0.46) | 0 | 0.969 / – | -0.0% / – | 99.1 | 11 | – | 6.4 |
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| varying | aa | 0 / 0 / 0 / 0 | – | 10/10 | 2.03 (-1.08) | 0 | 0.735 / – | 4.8% / – | – | 22 | – | 5.2 |
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| varying | hard | 0 / 0 / 0 / 0 | – | 10/10 | 1.92 (-0.94) | 0 | 0.736 / – | 5.2% / – | – | 22 | – | 5.3 |
|
||||
| lines w1 | aa | 0 / 0 / 0 / 76 | – | 43/48 | 0.71 (-0.69) | 88 | 0.790 / – | -6.2% / – | – | 186 | – | 8.0 |
|
||||
| lines w1 | hard | 0 / 0 / 0 / 0 | – | 42/48 | 1.50 (-1.42) | 142 | 0.644 / – | -25.8% / – | – | 184 | – | 6.8 |
|
||||
| lines w2 | aa | 0 / 0 / 0 / 0 | – | 48/48 | 0.32 (-0.20) | 0 | 0.914 / – | -0.3% / – | – | 71 | – | 7.7 |
|
||||
| lines w2 | hard | 0 / 0 / 0 / 0 | – | 48/48 | 0.38 (-0.10) | 0 | 0.808 / – | -2.0% / – | – | 58 | – | 7.2 |
|
||||
| lines w3 | aa | 0 / 0 / 0 / 0 | – | 48/48 | 0.26 (-0.17) | 0 | 0.931 / – | -3.0% / – | – | 64 | – | 8.0 |
|
||||
| lines w3 | hard | 0 / 0 / 0 / 0 | – | 48/48 | 0.46 (-0.24) | 0 | 0.881 / – | -2.5% / – | – | 50 | – | 7.7 |
|
||||
| lines w4 | aa | 0 / 0 / 0 / 0 | – | 48/48 | 0.25 (-0.18) | 0 | 0.964 / – | -0.6% / – | – | 70 | – | 7.8 |
|
||||
| lines w4 | hard | 0 / 0 / 0 / 0 | – | 48/48 | 0.40 (-0.15) | 0 | 0.906 / – | -0.1% / – | – | 54 | – | 7.6 |
|
||||
| lines w6 | aa | 0 / 0 / 0 / 0 | – | 48/48 | 0.30 (-0.18) | 0 | 0.965 / – | -0.3% / – | – | 65 | – | 8.4 |
|
||||
| lines w6 | hard | 0 / 0 / 0 / 0 | – | 48/48 | 0.45 (-0.12) | 0 | 0.923 / – | 1.4% / – | – | 55 | – | 8.2 |
|
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| lines w8 | aa | 0 / 0 / 0 / 0 | – | 48/48 | 0.37 (-0.20) | 0 | 0.967 / – | -1.0% / – | – | 66 | – | 9.8 |
|
||||
| lines w8 | hard | 0 / 0 / 0 / 0 | – | 48/48 | 0.46 (-0.18) | 0 | 0.934 / – | -0.3% / – | – | 53 | – | 9.1 |
|
||||
| lines w10 | aa | 0 / 0 / 0 / 0 | – | 48/48 | 0.35 (-0.16) | 0 | 0.969 / – | -0.7% / – | – | 66 | – | 10.1 |
|
||||
| lines w10 | hard | 0 / 0 / 0 / 0 | – | 48/48 | 0.50 (-0.12) | 0 | 0.942 / – | -0.1% / – | – | 52 | – | 9.8 |
|
||||
| lines w12 | aa | 0 / 0 / 0 / 0 | – | 48/48 | 0.40 (-0.16) | 0 | 0.969 / – | -0.6% / – | – | 70 | – | 11.0 |
|
||||
| lines w12 | hard | 0 / 0 / 0 / 0 | – | 48/48 | 0.54 (-0.11) | 0 | 0.949 / – | -0.2% / – | – | 53 | – | 10.7 |
|
||||
| curves w2 | aa | 0 / 0 / 0 / 0 | – | 8/8 | 0.18 (-0.13) | 0 | 0.921 / – | -0.6% / – | – | 34 | – | 7.6 |
|
||||
| curves w2 | hard | 0 / 0 / 0 / 0 | – | 8/8 | 0.22 (-0.05) | 0 | 0.821 / – | -2.4% / – | – | 29 | – | 7.5 |
|
||||
| curves w4 | aa | 0 / 0 / 0 / 0 | – | 8/8 | 0.56 (-0.42) | 0 | 0.949 / – | -0.8% / – | – | 35 | – | 8.3 |
|
||||
| curves w4 | hard | 0 / 0 / 0 / 0 | – | 8/8 | 0.66 (-0.38) | 0 | 0.904 / – | -0.5% / – | – | 30 | – | 8.4 |
|
||||
| curves w8 | aa | 0 / 0 / 0 / 0 | – | 8/8 | 2.24 (-2.01) | 0 | 0.956 / – | -0.9% / – | – | 42 | – | 10.7 |
|
||||
| curves w8 | hard | 0 / 0 / 0 / 0 | – | 8/8 | 1.97 (-1.67) | 0 | 0.936 / – | -0.5% / – | – | 31 | – | 9.8 |
|
||||
| circles | aa | 0 / 0 / 0 / 0 | – | 0/0 | – (–) | 32 | 0.964 / – | -0.9% / – | – | 71 | – | 11.3 |
|
||||
| circles | hard | 0 / 0 / 0 / 0 | – | 0/0 | – (–) | 28 | 0.888 / – | -0.7% / – | – | 52 | – | 11.9 |
|
||||
| junctions w2 | aa | 7 / 0 / 0 / 0 | 1.17 | 23/23 | 0.32 (-0.16) | 0 | 0.889 / – | 6.1% / – | – | 84 | – | 6.3 |
|
||||
| junctions w2 | hard | 7 / 0 / 0 / 0 | 1.17 | 23/23 | 0.49 (-0.15) | 0 | 0.771 / – | 4.9% / – | – | 59 | – | 6.1 |
|
||||
| junctions w4 | aa | 7 / 0 / 0 / 1 | 1.62 | 23/23 | 0.33 (-0.26) | 0 | 0.919 / – | 5.0% / – | – | 100 | – | 6.9 |
|
||||
| junctions w4 | hard | 7 / 0 / 0 / 1 | 1.62 | 23/23 | 0.65 (-0.32) | 0 | 0.850 / – | 7.0% / – | – | 81 | – | 6.8 |
|
||||
| junctions w8 | aa | 7 / 0 / 0 / 2 | 2.76 | 23/23 | 0.43 (-0.27) | 0 | 0.937 / – | 2.7% / – | – | 93 | – | 7.9 |
|
||||
| junctions w8 | hard | 7 / 0 / 0 / 1 | 2.76 | 23/23 | 0.80 (-0.35) | 0 | 0.913 / – | 2.5% / – | – | 77 | – | 7.7 |
|
||||
| crossings w3 | aa | 5 / 0 / 0 / 2 | 0.25 | 20/20 | 0.27 (-0.18) | 0 | 0.935 / – | -1.1% / – | – | 74 | – | 4.6 |
|
||||
| crossings w3 | hard | 5 / 0 / 0 / 5 | 0.25 | 20/20 | 0.41 (-0.17) | 0 | 0.791 / – | -7.6% / – | – | 69 | – | 4.5 |
|
||||
| crossings w6 | aa | 5 / 0 / 0 / 1 | 0.25 | 20/20 | 0.35 (-0.17) | 0 | 0.925 / – | -3.6% / – | – | 112 | – | 5.6 |
|
||||
| crossings w6 | hard | 5 / 0 / 0 / 4 | 0.25 | 20/20 | 0.51 (-0.20) | 0 | 0.872 / – | -2.0% / – | – | 81 | – | 5.4 |
|
||||
| dashed w2 | aa | 0 / 0 / 0 / 0 | – | 62/62 | 0.28 (-0.20) | 0 | 0.927 / – | -2.6% / – | – | 64 | – | 3.7 |
|
||||
| dashed w2 | hard | 0 / 0 / 0 / 0 | – | 62/62 | 0.33 (-0.11) | 0 | 0.926 / – | -3.6% / – | – | 67 | – | 3.7 |
|
||||
| dashed w4 | aa | 0 / 0 / 0 / 0 | – | 58/58 | 0.30 (-0.20) | 0 | 0.952 / – | -0.1% / – | – | 61 | – | 3.9 |
|
||||
| dashed w4 | hard | 0 / 0 / 0 / 0 | – | 58/58 | 0.37 (-0.08) | 0 | 0.944 / – | -1.5% / – | – | 60 | – | 3.8 |
|
||||
| letters w3 | aa | 7 / 0 / 0 / 6 | 1.47 | 17/17 | 0.62 (-0.47) | 1 | 0.923 / – | -0.9% / – | – | 114 | – | 5.3 |
|
||||
| letters w3 | hard | 7 / 0 / 0 / 3 | 1.47 | 17/17 | 0.38 (-0.21) | 1 | 0.859 / – | -0.6% / – | – | 81 | – | 5.2 |
|
||||
| letters w5 | aa | 6 / 1 / 0 / 6 | 2.10 | 17/17 | 0.99 (-0.83) | 0 | 0.929 / – | -1.7% / – | – | 124 | – | 5.9 |
|
||||
| letters w5 | hard | 6 / 1 / 0 / 8 | 2.10 | 17/17 | 1.05 (-0.79) | 0 | 0.887 / – | -2.0% / – | – | 100 | – | 5.7 |
|
||||
| mix | aa | 0 / 0 / 0 / 0 | – | 7/7 | 0.25 (-0.18) | 0 | 0.988 / – | 0.2% / – | 99.9 | 22 | – | 10.2 |
|
||||
| mix | hard | 0 / 0 / 0 / 0 | – | 7/7 | 0.56 (-0.46) | 0 | 0.956 / – | -0.4% / – | 98.9 | 22 | – | 10.3 |
|
||||
| mixed-width body | aa | 0 / 0 / 0 / 0 | – | 3/3 | 0.23 (-0.05) | 0 | 0.985 / – | 0.3% / – | 99.3 | 9 | – | 4.4 |
|
||||
| mixed-width body | hard | 0 / 0 / 0 / 0 | – | 3/3 | 0.27 (-0.03) | 0 | 0.972 / – | -0.6% / – | 98.3 | 8 | – | 3.7 |
|
||||
| varying | aa | 0 / 0 / 0 / 0 | – | 10/10 | 2.03 (-1.08) | 0 | 0.735 / – | 4.8% / – | – | 22 | – | 9.4 |
|
||||
| varying | hard | 0 / 0 / 0 / 0 | – | 10/10 | 1.92 (-0.94) | 0 | 0.736 / – | 5.2% / – | – | 22 | – | 8.7 |
|
||||
|
||||
**aa totals**: junctions 44 correct, 1 wrong degree, 0 missed, 94 extra (of 45); ends 682 of 688; spurs 121.
|
||||
**aa totals**: junctions 44 correct, 1 wrong degree, 0 missed, 94 extra (of 45); ends 686 of 691; spurs 121.
|
||||
|
||||
**hard totals**: junctions 44 correct, 1 wrong degree, 0 missed, 22 extra (of 45); ends 681 of 688; spurs 171.
|
||||
**hard totals**: junctions 44 correct, 1 wrong degree, 0 missed, 22 extra (of 45); ends 685 of 691; spurs 171.
|
||||
|
||||
**Scope of the improvement:** correct junction degrees rise from 30/45 to 44/45 in each variant;
|
||||
missed junctions fall from two to zero. Extra junctions fall from 104 to 94 aa and 27 to 22 hard.
|
||||
|
||||
@@ -1442,6 +1442,7 @@ Moved from the ROADMAP's "Shipped so far" on 2026-10-10. Update it when a featur
|
||||
|
||||
- Create Strokes uses exact squared Euclidean distances and Guo–Hall thinning in bounded per-blob crops. Maximal-disc pruning, split-crossing merges and degree-two joins simplify its skeleton graph. The whole-blob width rule and ink fitting remain; 46 code-drawn inputs measure ends and junctions in [`image-trace-quality.md`](image-trace-quality.md#centre-lines). Junction degrees measure 44/45 correct in each input variant; remaining spurs are recorded. This is a measured skeleton improvement; the Image Trace score, missing per-feature selection and width controls, and estimates remain unchanged.
|
||||
- Create Strokes decides stroke or fill per feature, as the [help page](https://helpx.adobe.com/illustrator/desktop/manage-objects/traces-mockups-symbols/image-trace-panel-options.html) describes the Strokes width: the widest feature of the image that can become a stroke. A shape wider than Stroke somewhere keeps as its area every disc wider than Stroke that fits in it, and each piece outside those discs that reaches out of them at least one and a half times its own width (and 3 px) is traced as a stroked center line, its end at the area carried to the cut so the line's cap closes the join. Corners and edge slivers stay in the area. Which pieces count as features is VectorCraft's own rule. Each line still has one width; without Fills, the area is a 1 px outline as before. Tests: `thin_features_of_a_wide_shape_are_strokes_and_its_body_a_fill`, `wide_shapes_without_thin_features_stay_one_fill` and `distances_to_seeds_equal_brute_force` in `vectorcraft-trace`. The Image Trace score and estimates are unchanged.
|
||||
- The ignored centre-lines class measures that split on a mixed-width body scene: one disc with arms of 2, 3 and 5 px, at Stroke 6 px, traces as three stroked paths and one filled path in both the anti-aliased and hard input, with 100.0% of the arms' center samples found and 99.3% (anti-aliased) and 98.3% (hard) of the disc's pixels filled ([quality notes](image-trace-quality.md#centre-lines)). Test: `mixed_width_body_is_one_shape_traced_as_a_fill_and_strokes` in `vectorcraft-trace`. The Image Trace score and estimates are unchanged.
|
||||
Object › Live Paint › Merge adds the other selected paths and Live Paint groups to the bottom selected Live Paint group ([Live Paint groups](https://web.archive.org/web/20241230205225/https://helpx.adobe.com/illustrator/using/live-paint-groups.html)), which keeps its id, the paint of its faces and edges, and its name, lock, visibility, transparency, appearance, opacity mask and graphic style link. Object › Live Paint › Make with a Live Paint group selected, and a Live Paint Bucket click on a selected path beside a selected Live Paint group, add the paths to that group the same way. Make, Merge and the Live Paint Bucket take paths, compound paths and groups of them; with type, an image or another object among the selection they report that it has to be converted to paths first and change nothing, as type and raster images can't go into a Live Paint group directly ([Create Live Paint groups](https://helpx.adobe.com/illustrator/desktop/paint-and-fill/learn-painting-basics/create-live-paint-groups.html)); before, such an object went among the group's hidden sources and vanished from the canvas. Evidence: `tests_build::live_paint_refuses_type_and_images_and_changes_nothing`.
|
||||
With the Live Paint Bucket selected, Alt-click on vector art samples its fill, stroke and stroke weight into the paint defaults ([Paint with the Live Paint Bucket tool](https://helpx.adobe.com/illustrator/desktop/paint-and-fill/learn-painting-basics/paint-with-the-live-paint-bucket-tool.html)). On a placed image it samples the image pixel as a solid fill with no stroke. Alt+Shift-click samples only the color under the pointer, including an intermediate gradient color or image pixels, into the active fill or stroke ([Default keyboard shortcuts](https://helpx.adobe.com/illustrator/using/default-keyboard-shortcuts.html)). Neither click paints or changes the selection or selected art, and the next Bucket click paints with the sampled paint. Evidence: `tests_build::live_paint_bucket_alt_sample_paints_next_face_without_changing_selection`.
|
||||
Double-clicking the Live Paint Bucket opens Live Paint Bucket Options ([Paint with the Live Paint Bucket tool](https://helpx.adobe.com/illustrator/desktop/paint-and-fill/learn-painting-basics/paint-with-the-live-paint-bucket-tool.html)): Paint Fills (on) and Paint Strokes (off) set whether a click paints faces, edges or both, Highlight turns the outline of the face or edge under the pointer on or off, and Color and Width set it (red and 4 px by default). Faces are outlined at the Width and edges at half of it, as the page says faces are highlighted with a thick line and edges with a thin line. With both on, a click paints the edge within 4 px of the pointer, else the face, and Shift switches to Paint Fills only; with one on, Shift switches to the other. The options last across tool switches and are saved with the preferences (`tool.setOption {tool: "livePaintBucket"}`). Evidence: `builder::tests::{bucket_options_choose_what_a_click_paints, bucket_options_set_the_highlight, bucket_highlights_an_edge_thinner_than_a_face}`, `dialogs::live_paint_bucket::tests::double_clicking_the_tool_opens_its_options_and_ok_sets_them`.
|
||||
|
||||
Reference in New Issue
Block a user