本文整理汇总了Python中matplotlib.patches.Circle.get_radius方法的典型用法代码示例。如果您正苦于以下问题：Python Circle.get_radius方法的具体用法？Python Circle.get_radius怎么用？Python Circle.get_radius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.patches.Circle的用法示例。
在下文中一共展示了Circle.get_radius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: Annotate
# 需要导入模块: from matplotlib.patches import Circle [as 别名]
# 或者: from matplotlib.patches.Circle import get_radius [as 别名]
class Annotate(object):
def __init__(self, cloud, selection_shape, z_color=False, unlabeled_color = (1,0,0), labeled_color = (0,0,1)):
self.selection_shape = selection_shape
self.unlabeled_color = np.array(unlabeled_color)
self.labeled_color = np.array(labeled_color)
assert not np.all(unlabeled_color == labeled_color)
self.fig = plt.figure('label rope ends', figsize=(24,12))
self.fig.clear()
self.ax = self.fig.add_subplot(111, aspect='equal')
if cloud.shape[1] == 6:
self.cloud = cloud
else:
self.cloud = np.c_[cloud[:,:3], np.tile(self.unlabeled_color, (cloud.shape[0],1))]
if z_color:
z_min = self.cloud[:,2].min()
z_max = self.cloud[:,2].max()
self.z_color = np.empty((len(self.cloud),3))
for i in range(len(self.cloud)):
f = (self.cloud[i,2] - z_min) / (z_max - z_min)
self.z_color[i,:] = np.array(colorsys.hsv_to_rgb(f,1,1))
else:
self.z_color = None
self.scatters = []
self.rescatter_cloud()
self.ax.autoscale(False)
if self.selection_shape == 'rectangle' or self.selection_shape == 'square':
self.rect = Rectangle((0,0), 0, 0, facecolor='None', edgecolor='green', linestyle='dashed')
self.ax.add_patch(self.rect)
elif self.selection_shape == 'circle':
self.circle = Circle((0,0), 0, facecolor='None', edgecolor='green', linestyle='dashed')
self.ax.add_patch(self.circle)
self.x0 = None
self.y0 = None
self.x1 = None
self.y1 = None
self.fig.canvas.mpl_connect('button_press_event', self.on_press)
self.fig.canvas.mpl_connect('button_release_event', self.on_release)
self.motion_notify_cid = None
self.fig.canvas.mpl_connect('key_press_event', self.on_key)
plt.show()
def rescatter_cloud(self):
for scatter in self.scatters:
scatter.remove()
self.scatters = []
if self.z_color is not None:
ul_inds = np.absolute((self.cloud[:,3:] - self.unlabeled_color)).sum(axis=1) == 0 # unlabeled inds
self.scatters.append(plt.scatter(self.cloud[ul_inds,0], self.cloud[ul_inds,1], c=self.z_color[ul_inds,:], edgecolors=self.z_color[ul_inds,:], marker=',', s=5))
self.scatters.append(plt.scatter(self.cloud[~ul_inds,0], self.cloud[~ul_inds,1], c=self.cloud[~ul_inds,3:], edgecolors=self.cloud[~ul_inds,3:], marker='o', s=20))
else:
self.scatters.append(plt.scatter(self.cloud[:,0], self.cloud[:,1], c=self.cloud[:,3:], edgecolors=self.cloud[:,3:], marker=',', s=5))
def on_press(self, event):
if event.xdata < self.ax.get_xlim()[0] or event.xdata > self.ax.get_xlim()[1] or \
event.ydata < self.ax.get_ylim()[0] or event.ydata > self.ax.get_ylim()[1]:
return
self.x0 = event.xdata
self.y0 = event.ydata
self.motion_notify_cid = self.fig.canvas.mpl_connect('motion_notify_event', self.on_motion)
def on_release(self, event):
if self.motion_notify_cid:
self.fig.canvas.mpl_disconnect(self.motion_notify_cid)
self.motion_notify_cid = None
if self.selection_shape == 'rectangle' or self.selection_shape == 'square':
x0 = min(self.x0, self.x1)
x1 = max(self.x0, self.x1)
y0 = min(self.y0, self.y1)
y1 = max(self.y0, self.y1)
inside_rect_inds = (x0 <= self.cloud[:,0]) * (self.cloud[:,0] <= x1) * (y0 <= self.cloud[:,1]) * (self.cloud[:,1] <= y1)
num_pts_inside_rect = inside_rect_inds.sum()
self.cloud[inside_rect_inds,3:] = np.tile(self.labeled_color, (num_pts_inside_rect,1))
elif self.selection_shape == 'circle':
inside_circle_inds = np.apply_along_axis(np.linalg.norm, 1, self.cloud[:,:2] - np.array(self.circle.center)) <= self.circle.get_radius()
num_pts_inside_circle = inside_circle_inds.sum()
self.cloud[inside_circle_inds,3:] = np.tile(self.labeled_color, (num_pts_inside_circle,1))
self.rescatter_cloud()
plt.draw()
def on_motion(self, event):
if event.xdata < self.ax.get_xlim()[0] or event.xdata > self.ax.get_xlim()[1] or \
event.ydata < self.ax.get_ylim()[0] or event.ydata > self.ax.get_ylim()[1]:
return
if self.selection_shape == 'rectangle':
self.x1 = event.xdata
self.y1 = event.ydata
elif self.selection_shape == 'circle' or self.selection_shape == 'square':
side = max(abs(event.xdata - self.x0), abs(event.ydata - self.y0))
self.x1 = self.x0 + np.sign(event.xdata - self.x0) * side
self.y1 = self.y0 + np.sign(event.ydata - self.y0) * side
if self.selection_shape == 'rectangle' or self.selection_shape == 'square':
self.rect.set_width(self.x1 - self.x0)
self.rect.set_height(self.y1 - self.y0)
self.rect.set_xy((self.x0, self.y0))
#.........这里部分代码省略.........