##// END OF EJS Templates
latex_to_png: avoid deprecated matplotlib functions
Jake VanderPlas -
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@@ -111,7 +111,8 b" def latex_to_png(s, encode=False, backend=None, wrap=False, color='Black',"
111 111
112 112 def latex_to_png_mpl(s, wrap, color='Black', scale=1.0):
113 113 try:
114 from matplotlib import mathtext
114 from matplotlib import figure, font_manager, mathtext
115 from matplotlib.backends import backend_agg
115 116 from pyparsing import ParseFatalException
116 117 except ImportError:
117 118 return None
@@ -122,11 +123,18 b" def latex_to_png_mpl(s, wrap, color='Black', scale=1.0):"
122 123 s = u'${0}$'.format(s)
123 124
124 125 try:
125 mt = mathtext.MathTextParser('bitmap')
126 f = BytesIO()
126 prop = font_manager.FontProperties(size=12)
127 127 dpi = 120*scale
128 mt.to_png(f, s, fontsize=12, dpi=dpi, color=color)
129 return f.getvalue()
128 buffer = BytesIO()
129
130 # Adapted from mathtext.math_to_image
131 parser = mathtext.MathTextParser("path")
132 width, height, depth, _, _ = parser.parse(s, dpi=72, prop=prop)
133 fig = figure.Figure(figsize=(width / 72, height / 72))
134 fig.text(0, depth / height, s, fontproperties=prop, color=color)
135 backend_agg.FigureCanvasAgg(fig)
136 fig.savefig(buffer, dpi=dpi, format="png", transparent=True)
137 return buffer.getvalue()
130 138 except (ValueError, RuntimeError, ParseFatalException):
131 139 return None
132 140
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