本文整理汇总了Python中matplotlib.collections.LineCollection.set_verts方法的典型用法代码示例。如果您正苦于以下问题：Python LineCollection.set_verts方法的具体用法？Python LineCollection.set_verts怎么用？Python LineCollection.set_verts使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类matplotlib.collections.LineCollection的用法示例。
在下文中一共展示了LineCollection.set_verts方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: SpiroGraph
# 需要导入模块: from matplotlib.collections import LineCollection [as 别名]
# 或者: from matplotlib.collections.LineCollection import set_verts [as 别名]
#.........这里部分代码省略.........
ax.set_axis_bgcolor(bgcolor)
# set fgcolor elements to black or white, mostly elements of sliders
for item in chain(map(attrgetter('label'), self.sliders),
map(attrgetter('valtext'), self.sliders),
map(attrgetter('poly'), self.sliders),
self.text,
*map(attrgetter('labels'), self.rbuttons)):
item.set_color(fgcolor)
self.update_radiobutton_colors()
plt.draw()
def update_linewidths(self, *args):
'''
function run by a, b and c parameter sliders. Sets width of each line
in linecollection according to sine function
'''
a, b, c = (s.val for s in self.sliders[6:])
self.linecollection.set_linewidths(spiro_linewidths(self.t, a, b, c))
plt.draw()
def update_linecolors(self, *args):
'''
function run by color slider and indirectly by variable/solid color
radiobutton. Updates colors of each line in linecollection using the
set colormap.
'''
# get current color value (a value between 1 and 0)
col_val = self.sliders[5].val
if not self.variable_color:
# if solid color, convert color value to rgb and set the color
self.linecollection.set_color(self.colormap.to_rgba(col_val))
else:
# create values between 0 and 1 for each line segment
colors = (self.t / max(self.t)) + col_val
# use color value to roll colors
colors[colors > 1] -= 1
self.linecollection.set_color(
[self.colormap.to_rgba(i) for i in colors])
plt.draw()
def update_lineverts(self, *args):
'''
function run by R, r, p, tmax and tstep sliders to update line vertices
'''
tmax, tstep, R, r, p = (s.val for s in self.sliders[:5])
self.t = np.arange(0, tmax, tstep)
x, y = spiro_linefunc(self.t, R, r, p)
self.linecollection.set_verts(segments(x, y))
# change axis limits to pad new line nicely
self.mainax.set(xlim=(min(x) - 5, max(x) + 5),
ylim=(min(y) - 5, max(y) + 5))
plt.draw()
def update_linecolor_setting(self, val):
'''
function run by solid/variable colour slider, alters variable_color
attribute then calls update_linecolors
'''
if val == 'variable':
self.variable_color = True
elif val == 'solid':
self.variable_color = False
# need to update radiobutton colors here.
self.update_radiobutton_colors()
self.update_linecolors()
def update_radiobutton_colors(self):
'''
makes radiobutton colors correct even on a changing axis background
'''
bgcolor = self.rbuttons[0].value_selected
fgcolor = 'white' if bgcolor == 'black' else 'black'
for i, b in enumerate(self.rbuttons):
# find out index of the active button
active_idx = self.rbutton_kwargs[i]['labels'].index(
b.value_selected)
# set button colors accordingly
b.circles[not active_idx].set_color(bgcolor)
b.circles[active_idx].set_color(fgcolor)
def run(self):
'''
set up slider functions
'''
verts_func = self.update_lineverts
colors_func = self.update_linecolors
widths_func = self.update_linewidths
# create iterable of slider funcs to zip with sliders
slider_update_funcs = chain(repeat(verts_func, 5),
[colors_func, ],
repeat(widths_func, 3))
# set slider on_changed functions
for s, f in zip(self.sliders, slider_update_funcs):
s.on_changed(f)
self.rbuttons[0].on_clicked(self.update_figcolors)
self.rbuttons[1].on_clicked(self.update_linecolor_setting)
plt.show()