Python 如何使用pylab仅绘制无边框的数据
使用pylab,我只想将没有轴或边框的数据打印到png文件中。在下面的代码中,我仍然在数据的左侧和右侧获得边框Python 如何使用pylab仅绘制无边框的数据,python,plot,matplotlib,Python,Plot,Matplotlib,使用pylab,我只想将没有轴或边框的数据打印到png文件中。在下面的代码中,我仍然在数据的左侧和右侧获得边框 import pylab scores = [[ 82.,78., 71.5, 76., 79.5, 77., 73.5, 70.5, 74., 74.5 ], [ 79. , 75.75, 71., 76., 78.25, 73.25, 72.25 ,73.25, 74.75, 73.5 ], [ 77., 75., 70.5
import pylab
scores = [[ 82.,78., 71.5, 76., 79.5, 77., 73.5, 70.5, 74., 74.5 ],
[ 79. , 75.75, 71., 76., 78.25, 73.25, 72.25 ,73.25, 74.75, 73.5 ],
[ 77., 75., 70.5, 73. , 77., 73.5, 71.75, 75.25, 76.75, 74. ],
[ 76., 74.75, 72.5, 72.25 ,75.25, 76.5, 73.5, 73., 75.25, 75.75],
[ 75., 72.5, 72.25, 74.5, 73.25, 73.25, 74.5, 73.25, 73.5, 76.5 ],
[ 74.5, 72., 69.5, 73.25, 73.75, 72., 76.75, 77., 74.25, 76.5 ],
[ 72.5, 73.75, 72.75, 75.75, 78., 76.75, 77.75, 78.75, 77.25, 74. ],
[ 74.5, 74.25, 74.75, 78.75, 80.75, 79.25, 74.5, 75., 76.25, 73. ],
[ 75.5, 71.5, 71.75, 78.75, 80.25, 77.5, 75., 73.25, 72.25, 72.75],
[ 77.5, 74.5, 72., 77.75, 78.25, 74., 76.75, 75.75, 74.25, 73. ]]
fig = pylab.figure()
ax = fig.add_subplot(111)
ax.xaxis.set_ticklabels([None])
ax.yaxis.set_ticklabels([None])
ax.xaxis.set_ticks([None])
ax.yaxis.set_ticks([None])
ax.imshow(scores,vmin=0, vmax=100, origin='lower')
pylab.savefig('output.png',bbox_inches='tight', pad_inches=0)
这应该可以做到。没有给我显示任何轴。我所做的只是添加frameon=False。这只是使边框透明;图像仍然包含边框。我发现:pylab.savefig('output.png',bbox_inches='tight',pad_inches=0)去掉了大部分边框,只是在左侧和底部留下了一个三像素的边缘。是的,bbox_inches='tight'这肯定会去掉额外的区域。干得好,我知道了。有两件事需要做。首先,需要删除记号标签和记号线,并在渲染图形时将边界框设置为零。我将编辑我的代码片段。
import pylab
scores = [[ 82.,78., 71.5, 76., 79.5, 77., 73.5, 70.5, 74., 74.5 ],
[ 79. , 75.75, 71., 76., 78.25, 73.25, 72.25 ,73.25, 74.75, 73.5 ],
[ 77., 75., 70.5, 73. , 77., 73.5, 71.75, 75.25, 76.75, 74. ],
[ 76., 74.75, 72.5, 72.25 ,75.25, 76.5, 73.5, 73., 75.25, 75.75],
[ 75., 72.5, 72.25, 74.5, 73.25, 73.25, 74.5, 73.25, 73.5, 76.5 ],
[ 74.5, 72., 69.5, 73.25, 73.75, 72., 76.75, 77., 74.25, 76.5 ],
[ 72.5, 73.75, 72.75, 75.75, 78., 76.75, 77.75, 78.75, 77.25, 74. ],
[ 74.5, 74.25, 74.75, 78.75, 80.75, 79.25, 74.5, 75., 76.25, 73. ],
[ 75.5, 71.5, 71.75, 78.75, 80.25, 77.5, 75., 73.25, 72.25, 72.75],
[ 77.5, 74.5, 72., 77.75, 78.25, 74., 76.75, 75.75, 74.25, 73. ]]
fig = pylab.figure(frameon=False)
ax_size = [0,0,1,1]
fig.add_axes(ax_size)
pylab.imshow(scores,vmin=0, vmax=100, origin='lower')
pylab.axis('off')
## As you noted.
pylab.savefig('output.png',bbox_inches='tight', pad_inches=0)