chart-parse-bench / index.json
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ChartParse-Bench: 58 charts with pre-pixel ground truth
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[
{
"id": "A01",
"family": "line",
"title": "Rail-jump lattice",
"tests": "colour-based tracing that swaps identity at a crossing",
"level": 2,
"n_series": 8,
"n_points": 3200,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A01.png",
"truth": "truth/A01.truth.json",
"spec": "spec/A01.spec.json"
},
{
"id": "A02",
"family": "line",
"title": "Dense stochastic bundle",
"tests": "token budget and sampling honesty",
"level": 2,
"n_series": 12,
"n_points": 24000,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A02.png",
"truth": "truth/A02.truth.json",
"spec": "spec/A02.spec.json"
},
{
"id": "A03",
"family": "line",
"title": "Near-parallel pair",
"tests": "sub-stroke separation between two series",
"level": 2,
"n_series": 2,
"n_points": 1000,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A03.png",
"truth": "truth/A03.truth.json",
"spec": "spec/A03.spec.json"
},
{
"id": "A04",
"family": "line",
"title": "Hairline on dark ground",
"tests": "ink thresholding and halo attribution",
"level": 2,
"n_series": 3,
"n_points": 1800,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A04.png",
"truth": "truth/A04.truth.json",
"spec": "spec/A04.spec.json"
},
{
"id": "A05",
"family": "line",
"title": "Dash-pattern identity",
"tests": "series identity carried by stroke, not hue",
"level": 2,
"n_series": 3,
"n_points": 900,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A05.png",
"truth": "truth/A05.truth.json",
"spec": "spec/A05.spec.json"
},
{
"id": "A06",
"family": "line",
"title": "Step and spline in one frame",
"tests": "corner preservation vs dense resampling",
"level": 2,
"n_series": 2,
"n_points": 416,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A06.png",
"truth": "truth/A06.truth.json",
"spec": "spec/A06.spec.json"
},
{
"id": "A07",
"family": "line",
"title": "Spike train",
"tests": "peak preservation under resampling",
"level": 2,
"n_series": 1,
"n_points": 1200,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A07.png",
"truth": "truth/A07.truth.json",
"spec": "spec/A07.spec.json"
},
{
"id": "A08",
"family": "line",
"title": "Sawtooth near Nyquist",
"tests": "honesty about recoverable resolution",
"level": 2,
"n_series": 1,
"n_points": 3000,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A08.png",
"truth": "truth/A08.truth.json",
"spec": "spec/A08.spec.json"
},
{
"id": "A09",
"family": "line",
"title": "Four-decade log crossing",
"tests": "scale type before geometry",
"level": 2,
"n_series": 6,
"n_points": 2400,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "log"
}
},
"image": "images/A09.png",
"truth": "truth/A09.truth.json",
"spec": "spec/A09.spec.json"
},
{
"id": "A10",
"family": "line",
"title": "Broken axis",
"tests": "piecewise transforms",
"level": 2,
"n_series": 2,
"n_points": 50,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
},
"panel1": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A10.png",
"truth": "truth/A10.truth.json",
"spec": "spec/A10.spec.json"
},
{
"id": "A11",
"family": "line",
"title": "Twin axes, mirrored ranges",
"tests": "axis binding",
"level": 2,
"n_series": 2,
"n_points": 600,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
},
"panel1": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A11.png",
"truth": "truth/A11.truth.json",
"spec": "spec/A11.spec.json"
},
{
"id": "A12",
"family": "line",
"title": "Inline value labels on the marks",
"tests": "datum vs annotation",
"level": 2,
"n_series": 3,
"n_points": 48,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A12.png",
"truth": "truth/A12.truth.json",
"spec": "spec/A12.spec.json"
},
{
"id": "A13",
"family": "line",
"title": "Legend inside the plot box",
"tests": "furniture exclusion",
"level": 2,
"n_series": 4,
"n_points": 1200,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A13.png",
"truth": "truth/A13.truth.json",
"spec": "spec/A13.spec.json"
},
{
"id": "A14",
"family": "line",
"title": "Clipped excursion",
"tests": "gap honesty",
"level": 2,
"n_series": 1,
"n_points": 500,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A14.png",
"truth": "truth/A14.truth.json",
"spec": "spec/A14.spec.json"
},
{
"id": "A15",
"family": "line",
"title": "Band over its own line",
"tests": "boundary vs fill",
"level": 2,
"n_series": 3,
"n_points": 900,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A15.png",
"truth": "truth/A15.truth.json",
"spec": "spec/A15.spec.json"
},
{
"id": "A16",
"family": "line",
"title": "Iso-luminant palette",
"tests": "greyscale-based separation",
"level": 2,
"n_series": 6,
"n_points": 1800,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A16.png",
"truth": "truth/A16.truth.json",
"spec": "spec/A16.spec.json"
},
{
"id": "A17",
"family": "line",
"title": "Gridline collision",
"tests": "furniture vs mark",
"level": 2,
"n_series": 2,
"n_points": 800,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A17.png",
"truth": "truth/A17.truth.json",
"spec": "spec/A17.spec.json"
},
{
"id": "A18",
"family": "line",
"title": "Abbreviated irregular time axis",
"tests": "tick coverage",
"level": 2,
"n_series": 1,
"n_points": 9,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/A18.png",
"truth": "truth/A18.truth.json",
"spec": "spec/A18.spec.json"
},
{
"id": "B01",
"family": "scatter",
"title": "Overplotted cloud",
"tests": "recall under merging",
"level": 2,
"n_series": 1,
"n_points": 5000,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/B01.png",
"truth": "truth/B01.truth.json",
"spec": "spec/B01.spec.json"
},
{
"id": "B02",
"family": "scatter",
"title": "Bubble with two channels",
"tests": "the size channel surviving",
"level": 2,
"n_series": 1,
"n_points": 60,
"axis_scales": {
"panel0": {
"x": "log",
"y": "linear"
}
},
"image": "images/B02.png",
"truth": "truth/B02.truth.json",
"spec": "spec/B02.spec.json"
},
{
"id": "B03",
"family": "scatter",
"title": "Shape-coded groups",
"tests": "grouping carried by shape",
"level": 2,
"n_series": 4,
"n_points": 160,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/B03.png",
"truth": "truth/B03.truth.json",
"spec": "spec/B03.spec.json"
},
{
"id": "B04",
"family": "scatter",
"title": "Jittered categorical strips",
"tests": "jitter read as data",
"level": 2,
"n_series": 6,
"n_points": 270,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/B04.png",
"truth": "truth/B04.truth.json",
"spec": "spec/B04.spec.json"
},
{
"id": "B05",
"family": "scatter",
"title": "Log\u2013log decades",
"tests": "two scale calls at once",
"level": 2,
"n_series": 1,
"n_points": 220,
"axis_scales": {
"panel0": {
"x": "log",
"y": "log"
}
},
"image": "images/B05.png",
"truth": "truth/B05.truth.json",
"spec": "spec/B05.spec.json"
},
{
"id": "B06",
"family": "scatter",
"title": "Fit line with envelope",
"tests": "three marks, one hue",
"level": 2,
"n_series": 4,
"n_points": 690,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/B06.png",
"truth": "truth/B06.truth.json",
"spec": "spec/B06.spec.json"
},
{
"id": "B07",
"family": "scatter",
"title": "Two-dimensional error bars",
"tests": "recording uncertainty",
"level": 2,
"n_series": 1,
"n_points": 14,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/B07.png",
"truth": "truth/B07.truth.json",
"spec": "spec/B07.spec.json"
},
{
"id": "B08",
"family": "scatter",
"title": "Touching markers",
"tests": "blob splitting",
"level": 2,
"n_series": 1,
"n_points": 120,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/B08.png",
"truth": "truth/B08.truth.json",
"spec": "spec/B08.spec.json"
},
{
"id": "B09",
"family": "scatter",
"title": "Far outliers",
"tests": "outliers kept, not trimmed",
"level": 2,
"n_series": 1,
"n_points": 124,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/B09.png",
"truth": "truth/B09.truth.json",
"spec": "spec/B09.spec.json"
},
{
"id": "B10",
"family": "scatter",
"title": "Connected scatter",
"tests": "ordering is data",
"level": 2,
"n_series": 1,
"n_points": 40,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/B10.png",
"truth": "truth/B10.truth.json",
"spec": "spec/B10.spec.json"
},
{
"id": "B11",
"family": "scatter",
"title": "Scatter with marginals",
"tests": "panel decomposition",
"level": 2,
"n_series": 1,
"n_points": 400,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
},
"panel1": {
"x": "linear",
"y": "linear"
},
"panel2": {
"x": "linear",
"y": "linear"
}
},
"image": "images/B11.png",
"truth": "truth/B11.truth.json",
"spec": "spec/B11.spec.json"
},
{
"id": "C01",
"family": "area",
"title": "Hundred-per-cent stack",
"tests": "cumulative vs segment, stack order",
"level": 2,
"n_series": 5,
"n_points": 1300,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/C01.png",
"truth": "truth/C01.truth.json",
"spec": "spec/C01.spec.json"
},
{
"id": "C02",
"family": "area",
"title": "Streamgraph with wiggle baseline",
"tests": "a computed baseline",
"level": 2,
"n_series": 4,
"n_points": 1200,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/C02.png",
"truth": "truth/C02.truth.json",
"spec": "spec/C02.spec.json"
},
{
"id": "C03",
"family": "area",
"title": "Overlapping translucent areas",
"tests": "composited colours",
"level": 2,
"n_series": 3,
"n_points": 900,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/C03.png",
"truth": "truth/C03.truth.json",
"spec": "spec/C03.spec.json"
},
{
"id": "C04",
"family": "area",
"title": "Signed area across zero",
"tests": "the datum edge flips",
"level": 2,
"n_series": 1,
"n_points": 400,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/C04.png",
"truth": "truth/C04.truth.json",
"spec": "spec/C04.spec.json"
},
{
"id": "C05",
"family": "area",
"title": "Ridgeline with overlap",
"tests": "panels that must not stack",
"level": 2,
"n_series": 8,
"n_points": 2400,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/C05.png",
"truth": "truth/C05.truth.json",
"spec": "spec/C05.spec.json"
},
{
"id": "C06",
"family": "area",
"title": "Band between two curves",
"tests": "both boundaries recorded",
"level": 2,
"n_series": 2,
"n_points": 600,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/C06.png",
"truth": "truth/C06.truth.json",
"spec": "spec/C06.spec.json"
},
{
"id": "C07",
"family": "area",
"title": "Shaded integral region",
"tests": "hatching is annotation",
"level": 2,
"n_series": 1,
"n_points": 400,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/C07.png",
"truth": "truth/C07.truth.json",
"spec": "spec/C07.spec.json"
},
{
"id": "C08",
"family": "area",
"title": "Sliver layer",
"tests": "a thin layer surviving",
"level": 2,
"n_series": 4,
"n_points": 1200,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/C08.png",
"truth": "truth/C08.truth.json",
"spec": "spec/C08.spec.json"
},
{
"id": "C09",
"family": "area",
"title": "Area on a log axis",
"tests": "fill area \u2260 magnitude",
"level": 2,
"n_series": 1,
"n_points": 300,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "log"
}
},
"image": "images/C09.png",
"truth": "truth/C09.truth.json",
"spec": "spec/C09.spec.json"
},
{
"id": "D01",
"family": "compound",
"title": "Pressure\u2013volume indicator diagram",
"tests": "a non-functional closed curve",
"level": 2,
"n_series": 1,
"n_points": 400,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/D01.png",
"truth": "truth/D01.truth.json",
"spec": "spec/D01.spec.json"
},
{
"id": "D02",
"family": "compound",
"title": "Psychrometric chart",
"tests": "a non-Cartesian frame",
"level": 2,
"n_series": 5,
"n_points": 1000,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/D02.png",
"truth": "truth/D02.truth.json",
"spec": "spec/D02.spec.json"
},
{
"id": "D03",
"family": "compound",
"title": "Pump curve against system curve",
"tests": "preserving an intersection",
"level": 2,
"n_series": 3,
"n_points": 601,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/D03.png",
"truth": "truth/D03.truth.json",
"spec": "spec/D03.spec.json"
},
{
"id": "D04",
"family": "compound",
"title": "Bode plot",
"tests": "linked panels, shared log frequency",
"level": 2,
"n_series": 2,
"n_points": 800,
"axis_scales": {
"panel0": {
"x": "log",
"y": "linear"
},
"panel1": {
"x": "log",
"y": "linear"
}
},
"image": "images/D04.png",
"truth": "truth/D04.truth.json",
"spec": "spec/D04.spec.json"
},
{
"id": "D05",
"family": "compound",
"title": "Nyquist plot",
"tests": "the variable lives on the curve",
"level": 2,
"n_series": 1,
"n_points": 500,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/D05.png",
"truth": "truth/D05.truth.json",
"spec": "spec/D05.spec.json"
},
{
"id": "D06",
"family": "compound",
"title": "Phase diagram",
"tests": "boundaries meeting at a triple point",
"level": 2,
"n_series": 4,
"n_points": 401,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "log"
}
},
"image": "images/D06.png",
"truth": "truth/D06.truth.json",
"spec": "spec/D06.spec.json"
},
{
"id": "D07",
"family": "compound",
"title": "Titration curve with derivative",
"tests": "one series derived from the other",
"level": 2,
"n_series": 3,
"n_points": 801,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
},
"panel1": {
"x": "linear",
"y": "linear"
}
},
"image": "images/D07.png",
"truth": "truth/D07.truth.json",
"spec": "spec/D07.spec.json"
},
{
"id": "D08",
"family": "compound",
"title": "Stress\u2013strain curve",
"tests": "construction lines that look like data",
"level": 2,
"n_series": 2,
"n_points": 409,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/D08.png",
"truth": "truth/D08.truth.json",
"spec": "spec/D08.spec.json"
},
{
"id": "D09",
"family": "compound",
"title": "Moody diagram",
"tests": "a converging family of curves",
"level": 2,
"n_series": 11,
"n_points": 3300,
"axis_scales": {
"panel0": {
"x": "log",
"y": "log"
}
},
"image": "images/D09.png",
"truth": "truth/D09.truth.json",
"spec": "spec/D09.spec.json"
},
{
"id": "D10",
"family": "compound",
"title": "Smith chart",
"tests": "a curvilinear coordinate system",
"level": 2,
"n_series": 1,
"n_points": 60,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/D10.png",
"truth": "truth/D10.truth.json",
"spec": "spec/D10.spec.json"
},
{
"id": "D11",
"family": "compound",
"title": "Bars with an overlaid rate line",
"tests": "three geometries, two axes",
"level": 2,
"n_series": 3,
"n_points": 40,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
},
"panel1": {
"x": "linear",
"y": "linear"
}
},
"image": "images/D11.png",
"truth": "truth/D11.truth.json",
"spec": "spec/D11.spec.json"
},
{
"id": "D12",
"family": "compound",
"title": "Candlestick with volume",
"tests": "colour encodes direction, not identity",
"level": 2,
"n_series": 7,
"n_points": 420,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
},
"panel1": {
"x": "linear",
"y": "linear"
}
},
"image": "images/D12.png",
"truth": "truth/D12.truth.json",
"spec": "spec/D12.spec.json"
},
{
"id": "M01",
"family": "market",
"title": "Three Funds Against the Benchmark",
"tests": "identity through a scheduled crossing: BLC x TGR at 30% and 73%, RSP punching up through both at ~50% and ~90%",
"level": 3,
"n_series": 3,
"n_points": 756,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/M01.png",
"truth": "truth/M01.truth.json",
"spec": "spec/M01.spec.json"
},
{
"id": "M02",
"family": "market",
"title": "Fund and Its Index Tracker",
"tests": "two series that are meant to be identical \u2014 reporting them as two, or saying plainly that they could not be separated",
"level": 3,
"n_series": 3,
"n_points": 756,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/M02.png",
"truth": "truth/M02.truth.json",
"spec": "spec/M02.spec.json"
},
{
"id": "M03",
"family": "market",
"title": "One Breakaway, Four in the Pack",
"tests": "a 4x breakaway sets the y range, compressing four crossing series into the bottom fifth of the plot",
"level": 3,
"n_series": 5,
"n_points": 1260,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/M03.png",
"truth": "truth/M03.truth.json",
"spec": "spec/M03.spec.json"
},
{
"id": "M04",
"family": "market",
"title": "Sector Constituents, One Year",
"tests": "series count and identity at ten, with the crossings clustered at two shared drawdowns rather than spread out",
"level": 3,
"n_series": 10,
"n_points": 2520,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/M04.png",
"truth": "truth/M04.truth.json",
"spec": "spec/M04.spec.json"
},
{
"id": "M05",
"family": "market",
"title": "Sector Rotation: Leadership Changes Hands",
"tests": "ordering \u2014 the answer is a sequence of rank changes, not five curves",
"level": 3,
"n_series": 5,
"n_points": 1260,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/M05.png",
"truth": "truth/M05.truth.json",
"spec": "spec/M05.spec.json"
},
{
"id": "M06",
"family": "market",
"title": "Four Funds Hugging the Benchmark",
"tests": "accumulated identity error: no single crossing is hard, there are simply a great many between series that look alike by construction",
"level": 3,
"n_series": 5,
"n_points": 1260,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/M06.png",
"truth": "truth/M06.truth.json",
"spec": "spec/M06.spec.json"
},
{
"id": "M07",
"family": "market",
"title": "Shared Crash, Different Recoveries",
"tests": "behaviour through a shared event \u2014 every series turns in the same session, so direction cannot disambiguate the crossings",
"level": 3,
"n_series": 4,
"n_points": 1008,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/M07.png",
"truth": "truth/M07.truth.json",
"spec": "spec/M07.spec.json"
},
{
"id": "M08",
"family": "market",
"title": "High Beta Against Low Beta",
"tests": "crossings as events with a common cause: all three turn at every market turn, so every crossing happens where the cue is shared",
"level": 3,
"n_series": 3,
"n_points": 756,
"axis_scales": {
"panel0": {
"x": "linear",
"y": "linear"
}
},
"image": "images/M08.png",
"truth": "truth/M08.truth.json",
"spec": "spec/M08.spec.json"
}
]