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1daa1c6 b856ea5 d48e528 b856ea5 1daa1c6 b856ea5 d48e528 1daa1c6 b856ea5 d48e528 1daa1c6 0663aa4 1daa1c6 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 | from __future__ import annotations
import re
from pathlib import Path
import plotly.graph_objects as go
_MOVE_RE = re.compile(
r"^\s*(G0|G1)\s+X(-?\d+(?:\.\d+)?)\s+Y(-?\d+(?:\.\d+)?)"
r"(?:\s+Z(-?\d+(?:\.\d+)?))?",
re.IGNORECASE,
)
def parse_gcode_path(gcode_text: str) -> dict:
relative = True
x = y = z = 0.0
print_segments: list[list[tuple[float, float, float]]] = []
travel_segments: list[list[tuple[float, float, float]]] = []
current_kind: str | None = None
current_segment: list[tuple[float, float, float]] = []
all_x: list[float] = []
all_y: list[float] = []
all_z: list[float] = []
def flush_segment() -> None:
nonlocal current_segment, current_kind
if current_segment and current_kind is not None:
target = print_segments if current_kind == "print" else travel_segments
target.append(current_segment)
current_segment = []
current_kind = None
for raw_line in gcode_text.splitlines():
line = raw_line.strip()
if not line:
flush_segment()
continue
upper = line.upper()
if upper.startswith("G90"):
relative = False
continue
if upper.startswith("G91"):
relative = True
continue
match = _MOVE_RE.match(line)
if not match:
flush_segment()
continue
gcmd = match.group(1).upper()
dx = float(match.group(2))
dy = float(match.group(3))
dz_match = match.group(4)
dz = float(dz_match) if dz_match is not None else 0.0
prev_pos = (x, y, z)
if relative:
x += dx
y += dy
z += dz
else:
x, y = dx, dy
if dz_match is not None:
z = dz
kind = "travel" if gcmd == "G1" else "print"
if kind != current_kind:
flush_segment()
current_kind = kind
current_segment = [prev_pos]
current_segment.append((x, y, z))
all_x.append(x)
all_y.append(y)
all_z.append(z)
flush_segment()
if all_x:
bounds = (
(min(all_x), min(all_y), min(all_z)),
(max(all_x), max(all_y), max(all_z)),
)
else:
bounds = ((0.0, 0.0, 0.0), (0.0, 0.0, 0.0))
return {
"print_segments": print_segments,
"travel_segments": travel_segments,
"bounds": bounds,
"point_count": len(all_x),
}
def _segments_to_xyz(
segments: list[list[tuple[float, float, float]]],
) -> tuple[list[float | None], list[float | None], list[float | None]]:
xs: list[float | None] = []
ys: list[float | None] = []
zs: list[float | None] = []
for segment in segments:
for px, py, pz in segment:
xs.append(px)
ys.append(py)
zs.append(pz)
xs.append(None)
ys.append(None)
zs.append(None)
return xs, ys, zs
def build_toolpath_figure(
parsed: dict,
travel_opacity: float = 0.55,
print_opacity: float = 1.0,
travel_color: str = "#969696",
print_color: str = "#1f77b4",
) -> go.Figure:
print_xs, print_ys, print_zs = _segments_to_xyz(parsed["print_segments"])
travel_xs, travel_ys, travel_zs = _segments_to_xyz(parsed["travel_segments"])
fig = go.Figure()
if travel_xs:
fig.add_trace(
go.Scatter3d(
x=travel_xs,
y=travel_ys,
z=travel_zs,
mode="lines",
name="Travel (G0)",
opacity=travel_opacity,
line=dict(color=travel_color, width=2, dash="dot"),
hoverinfo="skip",
)
)
if print_xs:
fig.add_trace(
go.Scatter3d(
x=print_xs,
y=print_ys,
z=print_zs,
mode="lines",
name="Print (G1)",
opacity=print_opacity,
line=dict(color=print_color, width=4),
hovertemplate="X=%{x:.2f}<br>Y=%{y:.2f}<br>Z=%{z:.2f}<extra></extra>",
)
)
(x_min, y_min, z_min), (x_max, y_max, z_max) = parsed["bounds"]
fig.update_layout(
uirevision="toolpath",
scene=dict(
xaxis_title="X (mm)",
yaxis_title="Y (mm)",
zaxis_title="Z (mm)",
aspectmode="data",
),
margin=dict(l=0, r=0, t=30, b=0),
legend=dict(orientation="h", yanchor="bottom", y=1.0, xanchor="left", x=0.0),
title=(
f"Tool path — {len(parsed['print_segments'])} print / "
f"{len(parsed['travel_segments'])} travel segments "
f"X[{x_min:.1f},{x_max:.1f}] Y[{y_min:.1f},{y_max:.1f}] "
f"Z[{z_min:.1f},{z_max:.1f}]"
),
)
return fig
def render_gcode_file(path: str | Path) -> tuple[go.Figure, dict]:
text = Path(path).read_text()
parsed = parse_gcode_path(text)
return build_toolpath_figure(parsed), parsed
|