def set_font(self, font):
""" Set the font for the current graphics context.
"""
if sys.platform in ('win32', 'cygwin'):
# Have to pass weight and italic on Win32
weight = font_weights.get(font._get_weight(), agg.FontWeight.Regular)
italic = (font.style in constants.italic_styles)
# Win32 font selection is handled by the OS
self.font = agg.Font(font.findfontname(), font.size, weight, italic)
else:
# FreeType font selection is handled by kiva
spec = font.findfont()
self.font = agg.Font(spec.filename, font.size, spec.face_index)
def test_bad_method_args():
canvas = agg.CanvasG8(np.zeros((1, 1), dtype=np.uint8))
pix_format = agg.PixelFormat.Gray8
gs = agg.GraphicsState()
path = agg.Path()
transform = agg.Transform()
with pytest.raises(TypeError):
canvas.draw_image(None, pix_format, transform, gs)
with pytest.raises(TypeError):
canvas.draw_image(canvas.array, None, transform, gs)
with pytest.raises(TypeError):
canvas.draw_image(canvas.array, pix_format, None, gs)
with pytest.raises(TypeError):
canvas.draw_image(canvas.array, pix_format, transform, None)
# But this version should work
canvas.draw_image(canvas.image, None, transform, gs)
with pytest.raises(TypeError):
canvas.draw_shape(None, transform, gs)
with pytest.raises(TypeError):
canvas.draw_shape(path, None, gs)
with pytest.raises(TypeError):
canvas.draw_shape(path, transform, None)
text = "Hello!"
font = agg.Font("Times New Roman", 12.0, agg.FontCacheType.RasterFontCache)
with pytest.raises(TypeError):
canvas.draw_text(text, None, transform, gs)
with pytest.raises(TypeError):
canvas.draw_text(text, font, None, gs)
with pytest.raises(TypeError):
canvas.draw_text(text, font, transform, None)
def select_font(self, name, size, textEncoding):
""" Set the font for the current graphics context.
"""
self.font = agg.Font(name, size, agg.FontCacheType.RasterFontCache)
def test_no_text_font_failure():
if agg.HAS_TEXT:
return
with pytest.raises(RuntimeError):
agg.Font()
import celiagg as agg
import numpy as np
from skimage.io import imsave
canvas = agg.CanvasRGB24(np.ones((400, 400, 3), dtype=np.uint8))
state = agg.GraphicsState(drawing_mode=agg.DrawingMode.DrawStroke,
line_width=10.0)
transform = agg.Transform()
red_paint = agg.SolidPaint(1.0, 0.0, 0.0)
black_paint = agg.SolidPaint(0.0, 0.0, 0.0)
font = agg.Font("/Library/Fonts/Verdana.ttf", 96.0,
agg.FontCacheType.RasterFontCache)
path = agg.Path()
path.ellipse(200, 200, 190, 190)
canvas.clear(1.0, 1.0, 1.0)
canvas.draw_shape(path, transform, state, stroke=red_paint)
transform.translate(30.0, 220.0)
canvas.draw_text("celiagg", font, transform, state, stroke=black_paint)
imsave("example.png", canvas.array)