def add_gauge(radius, max_value, length, direction, color, major_step, minor_step):
major_angles, minor_angles = [], []
major_labels, minor_labels = [], []
total_angle = start_angle - end_angle
major_angle_step = float(major_step)/max_value*total_angle
minor_angle_step = float(minor_step)/max_value*total_angle
major_angle = 0
while major_angle <= total_angle:
major_angles.append(start_angle - major_angle)
major_angle += major_angle_step
minor_angle = 0
while minor_angle <= total_angle:
minor_angles.append(start_angle - minor_angle)
minor_angle += minor_angle_step
major_labels = [ major_step*i for i, _ in enumerate(major_angles) ]
minor_labels = [ minor_step*i for i, _ in enumerate(minor_angles) ]
n = major_step/minor_step
minor_angles = [ x for i, x in enumerate(minor_angles) if i % n != 0 ]
minor_labels = [ x for i, x in enumerate(minor_labels) if i % n != 0 ]
glyph = Arc(x=0, y=0, radius=radius, start_angle=start_angle, end_angle=end_angle, direction="clock", line_color=color, line_width=2)
add_glyph(glyph, global_source)
rotation = 0 if direction == 1 else -pi
x, y = zip(*[ polar_to_cartesian(radius, angle) for angle in major_angles ])
angles = [ angle + rotation for angle in major_angles ]
source = ColumnDataSource(dict(x=x, y=y, angle=angles))
plot.data_sources.append(source)
glyph = Ray(x="x", y="y", length=length, angle="angle", line_color=color, line_width=2)
add_glyph(glyph, source)
x, y = zip(*[ polar_to_cartesian(radius, angle) for angle in minor_angles ])
angles = [ angle + rotation for angle in minor_angles ]
source = ColumnDataSource(dict(x=x, y=y, angle=angles))
plot.data_sources.append(source)
glyph = Ray(x="x", y="y", length=length/2, angle="angle", line_color=color, line_width=1)
add_glyph(glyph, source)
x, y = zip(*[ polar_to_cartesian(radius+2*length*direction, angle) for angle in major_angles ])
text_angles = [ angle - pi/2 for angle in major_angles ]
source = ColumnDataSource(dict(x=x, y=y, angle=text_angles, text=major_labels))
plot.data_sources.append(source)
glyph = Text(x="x", y="y", angle="angle", text="text", text_align="center", text_baseline="middle")
add_glyph(glyph, source)
def add_needle(speed, units):
angle = speed_to_angle(speed, units)
add_glyph(
Ray(x=0,
y=0,
length=0.75,
angle=angle,
line_color="black",
line_width=3))
add_glyph(
Ray(x=0,
y=0,
length=0.10,
angle=angle - pi,
line_color="black",
line_width=3))
def test_Ray():
glyph = Ray()
assert glyph.x == "x"
assert glyph.y == "y"
assert glyph.angle == "angle"
assert glyph.length == None
yield check_line, glyph
yield check_props, glyph, ["x", "y", "angle", "length"], LINE
def add_needle(speed, units):
angle = speed_to_angle(speed, units)
plot.add_glyph(
ds,
Ray(x=0,
y=0,
length=data(0.75),
angle=angle,
line_color="black",
line_width=3))
plot.add_glyph(
ds,
Ray(x=0,
y=0,
length=data(0.10),
angle=angle - pi,
line_color="black",
line_width=3))
("quad",
Quad(left="x", right="xm01", top="y", bottom="ym01",
fill_color="#B3DE69")),
("quadratic",
Quadratic(x0="x",
y0="y",
x1="xp02",
y1="y",
cx="xp01",
cy="yp01",
line_color="#4DAF4A",
line_width=3)),
("ray",
Ray(x="x",
y="y",
length=45,
angle=-0.7,
line_color="#FB8072",
line_width=2)),
("rect",
Rect(x="x",
y="y",
width=screen(10),
height=screen(20),
angle=-0.7,
fill_color="#CAB2D6")),
("segment",
Segment(x0="x",
y0="y",
x1="xm01",
y1="ym01",
line_color="#F4A582",
def setUp(self):
from bokeh.glyphs import Ray
self.test_ray = Ray()