def __init__(self):
app.Canvas.__init__(self,
title='Arrows example',
keys='interactive',
size=(1050, 650))
line1 = curves.curve4_bezier((10.0, 0.0), (50, -190), (350, 190),
(390, 0.0))
arrows1 = np.array([line1[-2], line1[-1]]).reshape((1, 4))
line2 = curves.curve4_bezier((10.0, 0.0), (190, -190), (210, 190),
(390, 0.0))
arrows2 = np.array([line2[1], line2[0], line2[-2], line2[-1]]).reshape(
(2, 4))
line3 = curves.curve3_bezier((10.0, 0.0), (50, 190), (390, 0.0))
arrows3 = np.array([line3[-2], line3[-1]]).reshape((1, 4))
arrow_types = ["curved", "stealth", "inhibitor_round", "angle_60"]
self.lines = []
for i, arrow_type in enumerate(arrow_types):
arrows = [
visuals.ArrowVisual(line1,
color='w',
width=6,
method='agg',
arrows=arrows1,
arrow_type=arrow_type,
arrow_size=30.0),
visuals.ArrowVisual(line2,
color='w',
width=2,
method='agg',
arrows=arrows2,
arrow_type=arrow_type,
arrow_size=5.0),
visuals.ArrowVisual(line3,
color='w',
width=4,
method='agg',
arrows=arrows3,
arrow_type=arrow_type,
arrow_size=10.0)
]
# Translate each line visual downwards
for j, visual in enumerate(arrows):
x = 50 + (i * 250)
y = 100 + (200 * j)
visual.transform = STTransform(translate=[x, y],
scale=(0.5, 1.0))
visual.events.update.connect(lambda event: self.update())
self.lines.extend(arrows)
self.show()
def __init__(self):
app.Canvas.__init__(self,
title='Bezier lines example',
keys='interactive',
size=(400, 750))
self.lines = [
visuals.LineVisual(curves.curve4_bezier((10, 0), (50, -190),
(350, 190), (390, 0)),
color='w',
width=2,
method='agg'),
visuals.LineVisual(curves.curve4_bezier((10, 0), (190, -190),
(210, 190), (390, 0)),
color='w',
width=2,
method='agg'),
visuals.LineVisual(curves.curve3_bezier((10, 0), (30, 200),
(390, 0)),
color='w',
width=2,
method='agg')
]
# Translate each line visual downwards
for i, line in enumerate(self.lines):
x = 0
y = 200 * (i + 1)
line.transform = STTransform(translate=[x, y])
self.texts = [
visuals.TextVisual('Third order curve',
bold=True,
color='w',
font_size=14,
pos=(200, 75)),
visuals.TextVisual('Quadratic curve',
bold=True,
color='w',
font_size=14,
pos=(200, 525)),
]
for text in self.texts:
text.transform = NullTransform()
self.visuals = self.lines + self.texts
self.show()
def __init__(self):
app.Canvas.__init__(self, title='Bezier lines example',
keys='interactive', size=(400, 750))
self.lines = [
visuals.LineVisual(curves.curve4_bezier(
(10, 0),
(50, -190),
(350, 190),
(390, 0)
), color='w', width=2, method='agg'),
visuals.LineVisual(curves.curve4_bezier(
(10, 0),
(190, -190),
(210, 190),
(390, 0)
), color='w', width=2, method='agg'),
visuals.LineVisual(curves.curve3_bezier(
(10, 0),
(30, 200),
(390, 0)
), color='w', width=2, method='agg')
]
# Translate each line visual downwards
for i, line in enumerate(self.lines):
x = 0
y = 200 * (i + 1)
line.transform = STTransform(translate=[x, y])
self.texts = [
visuals.TextVisual('Third order curve', bold=True, color='w',
font_size=14, pos=(200, 75)),
visuals.TextVisual('Quadratic curve', bold=True, color='w',
font_size=14, pos=(200, 525)),
]
for text in self.texts:
text.transform = NullTransform()
self.visuals = self.lines + self.texts
self.show()
def __init__(self):
app.Canvas.__init__(self, title='Arrows example',
keys='interactive', size=(1050, 650))
line1 = curves.curve4_bezier(
(10.0, 0.0),
(50, -190),
(350, 190),
(390, 0.0)
)
arrows1 = np.array([
line1[-2],
line1[-1]
]).reshape((1, 4))
line2 = curves.curve4_bezier(
(10.0, 0.0),
(190, -190),
(210, 190),
(390, 0.0)
)
arrows2 = np.array([
line2[1],
line2[0],
line2[-2],
line2[-1]
]).reshape((2, 4))
line3 = curves.curve3_bezier(
(10.0, 0.0),
(50, 190),
(390, 0.0)
)
arrows3 = np.array([
line3[-2],
line3[-1]
]).reshape((1, 4))
arrow_types = ["curved", "stealth", "inhibitor_round", "angle_60"]
self.lines = []
for i, arrow_type in enumerate(arrow_types):
arrows = [
visuals.ArrowVisual(line1, color='w', width=6, method='agg',
arrows=arrows1, arrow_type=arrow_type,
arrow_size=30.0),
visuals.ArrowVisual(line2, color='w', width=2, method='agg',
arrows=arrows2, arrow_type=arrow_type,
arrow_size=5.0),
visuals.ArrowVisual(line3, color='w', width=4, method='agg',
arrows=arrows3, arrow_type=arrow_type,
arrow_size=10.0)
]
# Translate each line visual downwards
for j, visual in enumerate(arrows):
x = 50 + (i * 250)
y = 100 + (200 * j)
visual.transform = STTransform(translate=[x, y],
scale=(0.5, 1.0))
visual.events.update.connect(lambda event: self.update())
self.lines.extend(arrows)
self.show()