本文整理汇总了Python中mpl_toolkits.mplot3d.proj3d.proj_transform方法的典型用法代码示例。如果您正苦于以下问题：Python proj3d.proj_transform方法的具体用法？Python proj3d.proj_transform怎么用？Python proj3d.proj_transform使用的例子？那么, 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mpl_toolkits.mplot3d.proj3d的用法示例。
在下文中一共展示了proj3d.proj_transform方法的8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: make_ellipses
# 需要导入模块: from mpl_toolkits.mplot3d import proj3d [as 别名]
# 或者: from mpl_toolkits.mplot3d.proj3d import proj_transform [as 别名]
def make_ellipses(gmm, ax):
import matplotlib as mpl
from mpl_toolkits.mplot3d import proj3d
for n, color in enumerate('rgb'):
v, w = np.linalg.eigh(gmm.covariances_[n][:2, :2])
u = w[0] / np.linalg.norm(w[0])
angle = np.arctan2(u[1], u[0])
angle = 180 * angle / np.pi # convert to degrees
v *= 9
x, y, z = gmm.means_[n, :3]
x2, y2, _ = proj3d.proj_transform(x,y,z, ax.get_proj())
ell = mpl.patches.Ellipse([x2, y2], v[0], v[1],
180 + angle, color=color)
ell.set_clip_box(ax.bbox)
ell.set_alpha(0.5)
ax.add_artist(ell) 示例2: draw
# 需要导入模块: from mpl_toolkits.mplot3d import proj3d [as 别名]
# 或者: from mpl_toolkits.mplot3d.proj3d import proj_transform [as 别名]
def draw(self, renderer):
xs3d, ys3d, zs3d = self._verts3d
xs, ys, zs = proj3d.proj_transform(xs3d, ys3d, zs3d, renderer.M)
self.set_positions((xs[0], ys[0]), (xs[1], ys[1]))
FancyArrowPatch.draw(self, renderer) 示例3: draw
# 需要导入模块: from mpl_toolkits.mplot3d import proj3d [as 别名]
# 或者: from mpl_toolkits.mplot3d.proj3d import proj_transform [as 别名]
def draw(self, renderer):
"""Draw the arrow."""
xs3d, ys3d, zs3d = self._verts3d
xs, ys, _ = proj3d.proj_transform(xs3d, ys3d, zs3d, renderer.M)
self.set_positions((xs[0], ys[0]), (xs[1], ys[1]))
FancyArrowPatch.draw(self, renderer) 示例4: draw
# 需要导入模块: from mpl_toolkits.mplot3d import proj3d [as 别名]
# 或者: from mpl_toolkits.mplot3d.proj3d import proj_transform [as 别名]
def draw(self, renderer):
xs3d, ys3d, zs3d = self._verts3d
xs, ys, _ = proj3d.proj_transform(xs3d, ys3d, zs3d, renderer.M)
self.set_positions((xs[0], ys[0]), (xs[1], ys[1]))
FancyArrowPatch.draw(self, renderer)
############################################################################### 示例5: annotate_point
# 需要导入模块: from mpl_toolkits.mplot3d import proj3d [as 别名]
# 或者: from mpl_toolkits.mplot3d.proj3d import proj_transform [as 别名]
def annotate_point(figure, axes, x, y, z, color):
xp1, yp1, _ = proj3d.proj_transform(x, y, z, axes.get_proj())
label = axes.annotate(
'{:.5g}'.format(z), xy=(xp1, yp1), xytext = (-20, 40),
textcoords = 'offset points', ha = 'right', va = 'bottom',
bbox = dict(boxstyle='round,pad=0.5', fc=color, alpha=0.5),
arrowprops = dict(arrowstyle='->', connectionstyle='arc3,rad=0',
color=color))
def update_position(_):
xp2, yp2, _ = proj3d.proj_transform(x, y, z, axes.get_proj())
label.xy = xp2, yp2
label.update_positions(figure.canvas.renderer)
figure.canvas.draw()
figure.canvas.mpl_connect('button_release_event', update_position) 示例6: add_annotation
# 需要导入模块: from mpl_toolkits.mplot3d import proj3d [as 别名]
# 或者: from mpl_toolkits.mplot3d.proj3d import proj_transform [as 别名]
def add_annotation(ax, text, x, y, z=None):
from mpl_toolkits.mplot3d import proj3d
import pylab
if not z is None:
x2, y2, _ = proj3d.proj_transform(x,y,z, ax.get_proj())
else:
x2, y2 = x, y
pylab.annotate(
text, xy = (x2, y2), xytext = (-20, 20),
textcoords = 'offset points', ha = 'right', va = 'bottom',
bbox = dict(boxstyle = 'round,pad=0.5', fc = 'yellow', alpha = 0.5),
arrowprops = dict(arrowstyle = '->', connectionstyle = 'arc3,rad=0')) 示例7: draw
# 需要导入模块: from mpl_toolkits.mplot3d import proj3d [as 别名]
# 或者: from mpl_toolkits.mplot3d.proj3d import proj_transform [as 别名]
def draw(self, renderer):
"""Draw the patch."""
xs3d, ys3d, zs3d = self._verts3d
xs, ys, zs = proj3d.proj_transform(xs3d, ys3d, zs3d, renderer.M)
self.set_positions((xs[0], ys[0]), (xs[1], ys[1]))
super(Arrow3D, self).draw(renderer) 示例8: plot_samples_3D
# 需要导入模块: from mpl_toolkits.mplot3d import proj3d [as 别名]
# 或者: from mpl_toolkits.mplot3d.proj3d import proj_transform [as 别名]
def plot_samples_3D(self):
"""
Plots the orientations in a sphere.
Returns: Nothing, it just plots.
"""
# (this code is partially from stackoverflow)
fig = plt.figure(figsize=[5, 5])
ax = fig.gca(projection='3d')
ax.set_aspect("equal")
ax.view_init(azim=30)
# render the sphere mesh
u, v = np.mgrid[0:2 * np.pi:20j, 0:np.pi:10j]
# print(u,v)
x = np.cos(u) * np.sin(v)
y = np.sin(u) * np.sin(v)
z = np.cos(v)
ax.plot_wireframe(x, y, z, color="lightgray")
plt.axis('on')
# coordinate system in centre of sphere
origin = [0, 0, 0]
X, Y, Z = [1, 0, 0], [0, 1, 0], [0, 0, 1]
O, O, O = zip(origin, origin, origin)
X, Y, Z = zip(X, Y, Z)
ax.quiver(O, O, O, X, Y, Z, arrow_length_ratio=0.1, color='k')
ax.set_xlabel('X')
ax.set_ylabel('Y')
ax.set_zlabel('Z')
class Arrow3D(FancyArrowPatch):
def __init__(self, xs, ys, zs, *args, **kwargs):
FancyArrowPatch.__init__(self, (0, 0), (0, 0), *args, **kwargs)
self._verts3d = xs, ys, zs
def draw(self, renderer):
xs3d, ys3d, zs3d = self._verts3d
xs, ys, zs = proj3d.proj_transform(xs3d, ys3d, zs3d, renderer.M)
self.set_positions((xs[0], ys[0]), (xs[1], ys[1]))
FancyArrowPatch.draw(self, renderer)
# Plot arrows
for i in self.samples_xyz:
ax.add_artist(Arrow3D([0, i[0]], [0, i[1]], [0, i[2]], mutation_scale=20, lw=1, arrowstyle="-|>",
color="darkgreen")) # samples
try:
ax.add_artist(
Arrow3D([0, self.mean[0]], [0, self.mean[1]], [0, self.mean[2]], mutation_scale=20, lw=1, arrowstyle="-|>",
color="darkorange")) # mean
except AttributeError:
pass
plt.show()
return fig