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Use metric units for stat output and improve formatting #157

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Use metric units for stat output and improve formatting #157

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61 changes: 50 additions & 11 deletions vpype_cli/debug.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
import numpy as np

from vpype import Document, LineCollection, as_vector, global_processor
from vpype.utils import UNITS, convert

from .cli import cli

Expand All @@ -15,6 +16,31 @@
__all__ = ("dbsample", "dbdump", "stat", "DebugData")


def _px_to_mm(px: float) -> float:
return px * 25.4 / 96.0

def _decide_unit(mm: float) -> (string, float):
"""
Return an appropriate unit for humans, along with a factor that can be used
to convert mm to that unit later on.
"""
if mm < 0:
raise ValueError("mm must be a non-negative number")

if length_mm < 100.0: # 10cm
unit = "mm"
factor = 1.0
elif length_mm < 1000.0: # 1m
unit = "cm"
factor = 100.0
elif length_mm < 1000000.0: # 1km
unit = "m"
factor = 1000.0
else:
unit = "km"
factor = 1000000.0
return unit,factor

@cli.command(hidden=True)
@global_processor
def dbsample(document: Document):
Expand Down Expand Up @@ -138,28 +164,41 @@ def stat(document: Document):
for layer_id in sorted(document.layers.keys()):
layer = document.layers[layer_id]
length = layer.length()
length_mm = _px_to_mm(length)
unit, factor = _decide_unit(length_mm)

pen_up_length, pen_up_mean, pen_up_median = layer.pen_up_length()
length_tot += length
pen_up_length_tot += pen_up_length
pen_up_length_mm = _px_to_mm(pen_up_length)
pen_up_meah_mm = _px_to_mm(pen_up_meah)
pen_up_median_mm = _px_to_mm(pen_up_median)

print(f"Layer {layer_id}")
print(f" Length: {length}")
print(f" Pen-up length: {pen_up_length}")
print(f" Total length: {length + pen_up_length}")
print(f" Mean pen-up length: {pen_up_mean}")
print(f" Median pen-up length: {pen_up_median}")
print(f" Path count: {len(layer)}")
print(f" Length: {length_mm*factor:.2f}{unit}")
print(f" Pen-up length: {pen_up_length_mm*factor:.2f}{unit}")
print(f" Total length: {(length_mm + pen_up_length_mm)*factor:.2f}{unit}}")
print(f" Mean pen-up length: {pen_up_mean_mm*factor:.2f}{unit}}")
print(f" Median pen-up length: {pen_up_median_mm*factor:.2f}{unit}}")
print(f" Path count: {len(layer)}")
print(f" Segment count: {layer.segment_count()}")
print(
f" Mean segment length:",
str(length / layer.segment_count() if layer.segment_count() else "n/a"),
)
print(f" Bounds: {layer.bounds()}")


length_tot_mm = _px_to_mm(length_tot)
pen_up_length_tot_mm = _px_to_mm(pen_up_length_tot)
unit, factor = _decide_unit(length_tot_mm)

print(f"Totals")
print(f" Layer count: {len(document.layers)}")
print(f" Length: {length_tot}")
print(f" Pen-up length: {pen_up_length_tot}")
print(f" Total length: {length_tot + pen_up_length_tot}")
print(f" Path count: {sum(len(layer) for layer in document.layers.values())}")
print(f" Layer count: {len(document.layers)}")
print(f" Length: {length_tot_mm*factor:.2f}{unit}}")
print(f" Pen-up length: {pen_up_length_tot_mm*factor:.2f}{unit}}")
print(f" Total length: {(length_tot_mm + pen_up_length_tot_mm)*factor:.2f}{unit}}")
print(f" Path count: {sum(len(layer) for layer in document.layers.values())}")
print(f" Segment count: {document.segment_count()}")

print(
Expand Down