如何使用图例(matplotlib)自动缩放图形? [英] How to autoscaled graphs with picking legend (matplotlib)?

问题描述

我正在使用matplotlib编写采摘图例.目的是通过单击图例来隐藏和显示曲线.我找到了这个解决方案(显示pyplot图后隐藏行)，效果很好.

I am working on a picking legend with matplotlib. The goal is to hide and shows curves, by clicking on the legend. I found this solution (Hiding lines after showing a pyplot figure), which works very well.

我想改进此代码，以便在每次单击图例后自动适应轴.不知道有没有可能你有什么提示吗?

I want improve this code to adapt automatically the axis after each clic on the legend. I don't know if it is possible. Do you have any hint?

它们是我在以下图片上想要的示例.首先，图像1代表图形.然后，单击图例5 * sin(x)，橙色曲线如预期那样消失(图2).在图像2上，y轴未优化.预期结果在图像3上.

Their is an example of what I want on the images below. First of all, the Image 1 represents the graph. Then after clicking on the legend 5*sin(x), the orange curve disappears as expected (Image 2). On the Image 2, the y-axis is not optimized. The result expected is on the Image 3.

示例

非常感谢您，

推荐答案

添加对relim方法的调用，且visible_only标志设置为True，并更新轴即可执行所需的操作.这将需要添加到您的on_click/update方法中.

Adding a call to the relim method with the visible_only flag set to True and updating the axis should perform the way you want. This will need to be added to your on_click/update method.

# Where ax2 is a reference to your second axis
ax2.relim(visible_only=True)  # Ignore the line you've hidden when rescaling.
ax2.autoscale_view()  # assuming the axis has not been altered by set_xlim etc.

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