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Tweak hand-tuned classifier slightly

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This commit is contained in:
Shaunak Kishore
2015-08-16 22:30:33 -04:00
parent 0570efa815
commit 64342fe899
1 changed files with 15 additions and 11 deletions
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26
getchar.py
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@ -8,7 +8,7 @@ import os
import svg.path
import sys
SCALE = 0.2
SCALE = 1
SVG_DIR = 'derived'
TRANSFORM = 'scale({0:.2g}, -{0:0.2g}) translate(0, -900)'.format(SCALE)
@ -56,6 +56,9 @@ class Cusp(object):
if other.point == self.point:
return True
diff = other.point - self.point
length = abs(diff)
if length > MAX_CROSSING_DISTANCE:
return False
(other1, other2) = (other.tangent1, other.tangent2)
if reverse:
(other1, other2) = (other2, other1)
@ -64,15 +67,15 @@ class Cusp(object):
self._get_angle(diff, other2),
self._get_angle(diff, self.tangent2),
self._get_angle(other1, diff),
abs(diff)
length,
)
return (features[0]*features[1] > 0 and
features[2]*features[3] > 0 and
abs(features[0]) < 0.4*math.pi and
abs(features[1]) < 0.4*math.pi and
abs(features[2]) > 0.4*math.pi and
abs(features[3]) > 0.4*math.pi and
features[4] < MAX_CROSSING_DISTANCE)
# TODO(skishore): Replace this set of inequalities with a machine-learned
# classifier such as a neural net.
return (features[2]*features[3] > 0 and
abs(features[0]) < 0.3*math.pi and
abs(features[1]) < 0.3*math.pi and
abs(features[2]) > 0.3*math.pi and
abs(features[3]) > 0.3*math.pi)
def augment_glyph(glyph):
@ -86,8 +89,9 @@ def augment_glyph(glyph):
result = []
for cusp in cusps:
result.append(
'<circle cx="{0}" cy="{1}" r="4" fill="red" stroke="red"/>'.format(
int(cusp.point.real), int(cusp.point.imag)))
'<circle cx="{0}" cy="{1}" r="4" fill="red" stroke="red" '
'data-angle="{2}"/>'.format(
int(cusp.point.real), int(cusp.point.imag), cusp.angle))
for cusp in cusps:
for other in cusps:
if cusp.connect(other):