def draw_line(self, pos, horizontal=False, label=None,
color='gray90', label_color='gray35', **_):
"""Draw one horizontal or vertical line with optional color and label"""
if pos is None:
return
if pos < self.zoom_area[0 + horizontal] or pos > self.zoom_area[2 + horizontal]:
return
turtle.penup()
xscale = turtle.getscreen().xscale
yscale = turtle.getscreen().yscale
if label:
font_family, font_size = self.font
turtle.color(label_color)
turtle.setposition(*self.label_pos(pos=pos, label=label, horizontal=horizontal))
turtle.write(label, align='right' if horizontal else'center',
font=(font_family, font_size))
turtle.setposition(-4 / xscale if horizontal else pos,
pos if horizontal else -4 / yscale)
turtle.pendown()
turtle.setposition(1 / xscale if horizontal else pos,
pos if horizontal else 1 / yscale)
turtle.color(color)
turtle.pendown()
turtle.setposition(self.plot_area[2] if horizontal else pos,
pos if horizontal else self.plot_area[3])
turtle.penup()
python类setposition()的实例源码
def plot_table(self, *gamma, colors=['red', 'green', 'blue'], draw_speed=16, scale_x=1):
"""Plot gamma table"""
if len(gamma) == 1 and len(gamma[0]) == 3:
gamma = gamma[0]
if all(x == gamma[0] for x in gamma):
gamma = gamma[:1]
turtle.penup()
turtle.tracer(0, 16)
turtle.speed(0)
turtle.color('black')
for color, points_y in enumerate(gamma):
if len(gamma) == len(colors):
turtle.color(colors[color])
elif len(colors) == 1:
turtle.color(colors[0])
for x, y in enumerate(points_y):
trace = x and x % draw_speed == 0
if trace:
turtle.tracer(1)
turtle.setposition(x * scale_x, y)
if trace:
turtle.tracer(0)
if x == 0:
turtle.showturtle()
turtle.pendown()
turtle.penup()
turtle.hideturtle()
turtle.update()
def tscheme_setposition(x, y):
"""Set turtle's position to (X,Y), heading unchanged."""
_check_nums(x, y)
_tscheme_prep()
turtle.setposition(x, y)
return okay
def tscheme_setposition(x, y):
"""Set turtle's position to (X,Y), heading unchanged."""
_check_nums(x, y)
_tscheme_prep()
turtle.setposition(x, y)
return okay
def tscheme_setposition(x, y):
"""Set turtle's position to (X,Y), heading unchanged."""
_check_nums(x, y)
_tscheme_prep()
turtle.setposition(x, y)
return okay
