极坐标问题

时间:2014-12-16 15:45:30

标签: python matplotlib

我试图在极坐标图上绘制一些值。代码如下:

def plot_values(data):
    bridge = CvBridge()

    fig = figure(figsize=(4,4))
    ax = fig.add_axes([0.1, 0.1, 0.8, 0.8], polar=True)
    w,h = fig.canvas.get_width_height()

    plot([0,0],[0,1],  color=(0.5,0.5,0.5), linewidth = 3)
    plot([1*pi/2,1*pi/2],[0,1], color=(0.5,0.5,0.5), linewidth = 3)
    plot([2*pi/2,2*pi/2],[0,1],  color=(0.5,0.5,0.5), linewidth = 3)
    plot([3*pi/2,3*pi/2],[0,1],  color=(0.5,0.5,0.5), linewidth = 3)

    HAS= len(HAS_names)*4
    radii=np.repeat(data,HAS) 
    width = 2*np.pi/HAS
    for i in range(0, len(HAS_names)):
      radii[i] = AUC_value[HAS_names[i]]/HAS_frames[i] #assignment done through lists
    theta = np.arange(0.0, 2*np.pi, 2*np.pi/HAS)
    bars = ax.bar(theta, radii, width=width, bottom=0.0)

    xT=PLT.xticks()[0]
    xL=['','HAS','','HAD','','TAS','','TAD']
   PLT.xticks(xT, xL)
   for r,bar in zip(radii, bars):
     bar.set_facecolor( cm.jet(r/10.))
     bar.set_alpha(0.5)
  fig.canvas.draw()
  canvas = PLT.get_current_fig_manager().canvas
  canvas.draw()

我得到如下输出:

Polar_plot

我试图绘制标记为HAS的象限中出现的值,并在需要空白的区域上休息。我尝试删除radii=np.repeat(data,HAS)并在函数本身中将其声明为global variable,但我需要在radii循环之前最初为for分配一些值。 任何帮助表示赞赏。

0 个答案:

没有答案
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