88 lines
2.1 KiB
Python
88 lines
2.1 KiB
Python
"""Visualize DesignSpaceDocument and resulting VariationModel."""
|
|
|
|
from __future__ import print_function, division, absolute_import
|
|
from fontTools.misc.py23 import *
|
|
from fontTools.varLib.models import VariationModel, supportScalar
|
|
from fontTools.designspaceLib import DesignSpaceDocument
|
|
from mpl_toolkits.mplot3d import axes3d
|
|
from matplotlib import pyplot
|
|
from itertools import cycle
|
|
import math
|
|
import logging
|
|
import sys
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
def stops(support, count=20):
|
|
a,b,c = support
|
|
|
|
return [a + (b - a) * i / count for i in range(count)] + \
|
|
[b + (c - b) * i / count for i in range(count)] + \
|
|
[c]
|
|
|
|
def plotDocument(doc, fig, **kwargs):
|
|
assert len(doc.axes) == 2
|
|
|
|
n = len(doc.sources)
|
|
cols = math.ceil(n**.5)
|
|
rows = math.ceil(n / cols)
|
|
|
|
doc.normalize()
|
|
|
|
model = VariationModel([s.location for s in doc.sources])
|
|
|
|
ax1 = doc.axes[0].name
|
|
ax2 = doc.axes[1].name
|
|
for i, (support,color) in enumerate(zip(model.supports, cycle(pyplot.cm.Set1.colors))):
|
|
|
|
axis3D = fig.add_subplot(rows, cols, i + 1, projection='3d')
|
|
|
|
Xs = support.get(ax1, (-1.,0.,+1.))
|
|
Ys = support.get(ax2, (-1.,0.,+1.))
|
|
for x in stops(Xs):
|
|
X, Y, Z = [], [], []
|
|
for y in Ys:
|
|
z = supportScalar({ax1:x, ax2:y}, support)
|
|
X.append(x)
|
|
Y.append(y)
|
|
Z.append(z)
|
|
axis3D.plot_wireframe(X, Y, Z, color=color, **kwargs)
|
|
for y in stops(Ys):
|
|
X, Y, Z = [], [], []
|
|
for x in Xs:
|
|
z = supportScalar({ax1:x, ax2:y}, support)
|
|
X.append(x)
|
|
Y.append(y)
|
|
Z.append(z)
|
|
axis3D.plot_wireframe(X, Y, Z, color=color, **kwargs)
|
|
|
|
|
|
def main(args=None):
|
|
from fontTools import configLogger
|
|
|
|
if args is None:
|
|
args = sys.argv[1:]
|
|
|
|
# configure the library logger (for >= WARNING)
|
|
configLogger()
|
|
# comment this out to enable debug messages from logger
|
|
# log.setLevel(logging.DEBUG)
|
|
|
|
if len(args) < 1:
|
|
print("usage: fonttools varLib.plot soure.designspace", file=sys.stderr)
|
|
sys.exit(1)
|
|
|
|
doc = DesignSpaceDocument()
|
|
doc.read(args[0])
|
|
|
|
fig = pyplot.figure()
|
|
|
|
plotDocument(doc, fig)
|
|
|
|
pyplot.show()
|
|
|
|
if __name__ == '__main__':
|
|
import sys
|
|
sys.exit(main())
|