有什么做服装的网站好,网站开发西安,制作一个app的完整流程,wordpress数据库编码各位小伙伴#xff0c;好久不见#xff0c;今天学习用Python绘制花束。
有一种爱#xff0c;不求回报#xff0c;有一种情#xff0c;无私奉献#xff0c;这就是母爱。祝天下妈妈节日快乐#xff0c;幸福永远#xff01; 图形展示#xff1a; 代码展示#xff1a;
…各位小伙伴好久不见今天学习用Python绘制花束。
有一种爱不求回报有一种情无私奉献这就是母爱。祝天下妈妈节日快乐幸福永远 图形展示 代码展示
import matplotlib.pyplot as plt
import numpy as np
from matplotlib.colors import LinearSegmentedColormap as lsc
from scipy.spatial.transform import Rotation as R
# author : slandarer# 生成花朵数据
t1 np.array(range(25))/24
t2 np.arange(0, 575.5, 0.5)/575*20*np.pi 4*np.pi
[xr, tr] np.meshgrid(t1, t2)
pr (np.pi/2)*np.exp(-tr/(8*np.pi))
ur 1 - (1 - np.mod(3.6*tr, 2*np.pi)/np.pi)**4/2 np.sin(15*tr)/150 np.sin(15*tr)/150
yr 2*(xr**2 - xr)**2*np.sin(pr)
rr ur*(xr*np.sin(pr) yr*np.cos(pr))
hr ur*(xr*np.cos(pr) - yr*np.sin(pr))tb np.resize(np.linspace(0, 2, 151), (1,151))
rb np.resize(np.linspace(0, 1, 101), (101,1)) ((abs((1-np.mod(tb*5,2))))/2 .3)/2.5
xb rb*np.cos(tb*np.pi)
yb rb*np.sin(tb*np.pi)
hb np.power(-np.cos(rb*1.2*np.pi)1, .2)cL np.array([[.33,.33,.69], [.68,.42,.63], [.78,.42,.57], [.96,.73,.44]])
cL np.array([[.02,.04,.39], [.02,.06,.69], [.01,.26,.99], [.17,.69,1]])
cMpr lsc.from_list(slandarer, cL)
cMpb lsc.from_list(slandarer, cL*.4 .6)# 绕轴旋转数据点
def rT(X, Y, Z, T):SZ X.shapeXYZ np.hstack((X.reshape(-1, 1), Y.reshape(-1, 1), Z.reshape(-1, 1)))RMat R.from_euler(xyz, T, degrees True); XYZ RMat.apply(XYZ)return XYZ[:,0].reshape(SZ), XYZ[:,1].reshape(SZ), XYZ[:,2].reshape(SZ)# 贝塞尔函数插值生成花杆并绘制
def dS(X, Y, Z):MN np.where(Z np.min(Z)); M MN[0][0]; N MN[1][0]x1 X[M, N]; y1 Y[M, N]; z1 Z[M, N] .03x np.array([x1, 0, (x1*np.cos(np.pi/3) - y1*np.sin(np.pi/3))/3]).reshape((3,1))y np.array([y1, 0, (y1*np.cos(np.pi/3) x1*np.sin(np.pi/3))/3]).reshape((3,1))z np.array([z1, -.7, -1.5]).reshape((3,1))P np.hstack((x,y,z)).Tt (np.array(range(50)) 1)/50c1 np.array([1, 2, 1]).reshape(3,1)c2 np.power(t, np.array(range(3)).reshape(3,1))c3 np.power(1 - t, np.array(range(2, -1, -1)).reshape(3,1))P (P (c1*c2*c3))ax.plot(P[0], P[1], P[2], color #800080)# 创建figure窗口及axis坐标区域
fig plt.figure()
ax fig.add_subplot(111, projection3d)
# 绘制花束
ax.plot_surface(rr*np.cos(tr), rr*np.sin(tr), hr .35, rstride 1, cstride 1,facecolors cMpr(hr), antialiased True, shade False)
U, V, W rT(rr*np.cos(tr), rr*np.sin(tr), hr .35, [180/8, 0, 0]); V V - .4
for i in range(5):U, V, W rT(U, V, W, [0, 0, 72])ax.plot_surface(U, V, W - .1, rstride 1, cstride 1,facecolors cMpr(hr), antialiased True, shade False)dS(U, V, W - .1)u1, v1, w1rT(xb, yb, hb/2.5 .32, [180/9, 0, 0])
v1 v1 - 1.35
u2, v2, w2 rT(u1, v1, w1, [0, 0, 36])
u3, v3, w3 rT(u1, v1, w1, [0, 0, 24])
u4, v4, w4 rT(u3, v3, w3, [0, 0, 24])
for i in range(5):u1, v1, w1 rT(u1, v1, w1, [0, 0, 72])u2, v2, w2 rT(u2, v2, w2, [0, 0, 72])u3, v3, w3 rT(u3, v3, w3, [0, 0, 72])u4, v4, w4 rT(u4, v4, w4, [0, 0, 72])ax.plot_surface(u1, v1, w1, rstride 1, cstride 1,facecolors cMpb(hb), antialiased True, shade False)ax.plot_surface(u2, v2, w2, rstride 1, cstride 1,facecolors cMpb(hb), antialiased True, shade False)ax.plot_surface(u3, v3, w3, rstride 1, cstride 1,facecolors cMpb(hb), antialiased True, shade False)ax.plot_surface(u4, v4, w4, rstride 1, cstride 1,facecolors cMpb(hb), antialiased True, shade False)dS(u1, v1, w1)dS(u2, v2, w2)dS(u3, v3, w3)dS(u4, v4, w4)ax.set_position((-.215, -.3, 1.43, 1.43))
ax.set_box_aspect((1, 1, .8))
ax.view_init(elev 50, azim 2)
ax.axis(off)
plt.show() 参考文献
作者slandarer
网址https://mp.weixin.qq.com/s/a3QukoBQhoK46aY8ZinBrQ
