Python cairo.LINE_JOIN_ROUND Examples
The following are 6
code examples of cairo.LINE_JOIN_ROUND().
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Example #1
| Source File: __init__.py From GeoVis with MIT License | 6 votes |
|
def _BasicPolygon(self, coords, options):
"""
Draw polygon with color fill
"""
if len(coords) >= 3:
#define outline symbolics
outlinecolor = self.__hex_to_rgb(options["outlinecolor"])
self.drawer.set_source_rgb(*outlinecolor) # Solid color
self.drawer.set_line_width(options["outlinewidth"])
#...self.drawer.set_line_join(cairo.LINE_JOIN_ROUND)
#first starting point
xy = coords[0]
self.drawer.move_to(*xy)
#then add path for each new vertex
for xy in coords[1:]:
self.drawer.line_to(*xy)
self.drawer.close_path()
self.drawer.stroke_preserve()
#then fill insides
fillcolor = self.__hex_to_rgb(options["fillcolor"])
self.drawer.set_source_rgb(*fillcolor)
self.drawer.fill()
Example #2
| Source File: tile.py From Tiling with MIT License | 6 votes |
|
def render(
self, dual=False, background_color=BACKGROUND_COLOR, margin=MARGIN,
show_labels=SHOW_LABELS, line_width=LINE_WIDTH):
surface = cairo.ImageSurface(
cairo.FORMAT_RGB24, self.width, self.height)
dc = cairo.Context(surface)
dc.set_line_cap(cairo.LINE_CAP_ROUND)
dc.set_line_join(cairo.LINE_JOIN_ROUND)
dc.set_line_width(line_width)
dc.set_font_size(18.0 / self.scale)
dc.translate(self.width / 2, self.height / 2)
dc.scale(self.scale, self.scale)
dc.set_source_rgb(*color(background_color))
dc.paint()
shapes = self.dual() if dual else self.lookup.values()
if show_labels:
for shape in shapes:
shape.render_edge_labels(dc, margin - 0.25)
for shape in shapes:
shape.render(dc, margin)
if show_labels:
for index, shape in enumerate(self.shapes):
if shape in shapes:
shape.render_label(dc, index)
return surface
Example #3
| Source File: main.py From pywonderland with MIT License | 5 votes |
|
def main(hexagon_size, imgsize):
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, imgsize, imgsize)
ctx = cairo.Context(surface)
# we will put the center of the hexagon at the origin
a, b, c = hexagon_size
ctx.translate(imgsize / 2.0, imgsize / 2.0)
extent = max(c, a * HALFSQRT3, b * HALFSQRT3) + 1
ctx.scale(imgsize / (extent * 2.0), -imgsize / (extent * 2.0))
ctx.translate(-b * HALFSQRT3, -c / 2.0)
# paint background
ctx.set_source_rgb(1, 1, 1)
ctx.paint()
ctx.set_line_cap(cairo.LINE_CAP_ROUND)
ctx.set_line_join(cairo.LINE_JOIN_ROUND)
T = LozengeTiling(hexagon_size)
sample = run_cftp(T)
for key, val in T.get_tiles(sample).items():
for verts in val:
A, B, C, D = square_to_hex(verts)
ctx.move_to(A[0], A[1])
ctx.line_to(B[0], B[1])
ctx.line_to(C[0], C[1])
ctx.line_to(D[0], D[1])
ctx.close_path()
if key == "T":
ctx.set_source_rgb(*TOP_COLOR)
elif key == "L":
ctx.set_source_rgb(*LEFT_COLOR)
else:
ctx.set_source_rgb(*RIGHT_COLOR)
ctx.fill_preserve()
ctx.set_line_width(LINE_WIDTH)
ctx.set_source_rgb(*EDGE_COLOR)
ctx.stroke()
surface.write_to_png("random_lozenge_tiling.png")
Example #4
| Source File: fractaltree.py From pywonderland with MIT License | 5 votes |
|
def main():
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, WIDTH, HEIGHT)
ctx = cairo.Context(surface)
ctx.set_line_cap(cairo.LINE_CAP_ROUND)
ctx.set_line_join(cairo.LINE_JOIN_ROUND)
ctx.set_source_rgb(1, 1, 1)
ctx.paint()
fractal_tree(ctx, ITERATIONS, ROOT, TRUNK_LEN,
RATIO, THETA, ANGLE, PERTURB)
surface.write_to_png("random_fractal_tree.png")
Example #5
| Source File: ChainVBox.py From pychess with GNU General Public License v3.0 | 5 votes |
|
def draw(self, context):
allocation = self.get_allocation()
x_loc = allocation.x
y_loc = allocation.y
width = allocation.width - 1
height = allocation.height
context.set_source_rgb(.2, .2, .2)
# context.rectangle(0, 0, width, height)
# context.fill()
context.move_to(
self.__toAHalf(x_loc + width / 2.) - LONG_LINE,
self.__toAHalf(y_loc + height / 2.))
context.line_to(
self.__toAHalf(x_loc + width / 2.), self.__toAHalf(y_loc + height / 2.))
if self.position == CHAIN_TOP:
context.line_to(
self.__toAHalf(x_loc + width / 2.),
self.__toAHalf(float(y_loc + height)))
else:
context.line_to(
self.__toAHalf(x_loc + width / 2.), self.__toAHalf(y_loc + 0.))
context.set_line_width(1.0)
context.set_line_cap(cairo.LINE_CAP_ROUND)
context.set_line_join(cairo.LINE_JOIN_ROUND)
context.stroke()
Example #6
| Source File: BoardView.py From pychess with GNU General Public License v3.0 | 5 votes |
|
def __drawArrow(self, context, cords, aw, ahw, ahh, asw, fillc, strkc):
context.save()
lvx = cords[1].x - cords[0].x
lvy = cords[0].y - cords[1].y
hypotenuse = float((lvx ** 2 + lvy ** 2) ** .5)
vec_x = lvx / hypotenuse
vec_y = lvy / hypotenuse
v1x = -vec_y
v1y = vec_x
rectangle = self.cord2Rect(cords[0])
px_loc = rectangle[0] + rectangle[2] / 2.0
py_loc = rectangle[1] + rectangle[2] / 2.0
ax_loc = v1x * rectangle[2] * aw / 2
ay_loc = v1y * rectangle[2] * aw / 2
context.move_to(px_loc + ax_loc, py_loc + ay_loc)
p1x = px_loc + (lvx - vec_x * ahh) * rectangle[2]
p1y = py_loc + (lvy - vec_y * ahh) * rectangle[2]
context.line_to(p1x + ax_loc, p1y + ay_loc)
lax = v1x * rectangle[2] * ahw / 2
lay = v1y * rectangle[2] * ahw / 2
context.line_to(p1x + lax, p1y + lay)
context.line_to(px_loc + lvx * rectangle[2], py_loc + lvy * rectangle[2])
context.line_to(p1x - lax, p1y - lay)
context.line_to(p1x - ax_loc, p1y - ay_loc)
context.line_to(px_loc - ax_loc, py_loc - ay_loc)
context.close_path()
context.set_source_rgba(*fillc)
context.fill_preserve()
context.set_line_join(cairo.LINE_JOIN_ROUND)
context.set_line_width(asw * rectangle[2])
context.set_source_rgba(*strkc)
context.stroke()
context.restore()
