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copied!<p>I see many suggestions for this feature but no indication that it's been implemented. Here is a workable solution for the time-being. It applies a step-function transform to the x-axis. It's a lot of code, but it's fairly simple since most of it is boilerplate custom scale stuff. I have not added any graphics to indicate the location of the break, since that is a matter of style. Good luck finishing the job.</p> <pre><code>from matplotlib import pyplot as plt from matplotlib import scale as mscale from matplotlib import transforms as mtransforms import numpy as np def CustomScaleFactory(l, u): class CustomScale(mscale.ScaleBase): name = 'custom' def __init__(self, axis, **kwargs): mscale.ScaleBase.__init__(self) self.thresh = None #thresh def get_transform(self): return self.CustomTransform(self.thresh) def set_default_locators_and_formatters(self, axis): pass class CustomTransform(mtransforms.Transform): input_dims = 1 output_dims = 1 is_separable = True lower = l upper = u def __init__(self, thresh): mtransforms.Transform.__init__(self) self.thresh = thresh def transform(self, a): aa = a.copy() aa[a>self.lower] = a[a>self.lower]-(self.upper-self.lower) aa[(a>self.lower)&(a<self.upper)] = self.lower return aa def inverted(self): return CustomScale.InvertedCustomTransform(self.thresh) class InvertedCustomTransform(mtransforms.Transform): input_dims = 1 output_dims = 1 is_separable = True lower = l upper = u def __init__(self, thresh): mtransforms.Transform.__init__(self) self.thresh = thresh def transform(self, a): aa = a.copy() aa[a>self.lower] = a[a>self.lower]+(self.upper-self.lower) return aa def inverted(self): return CustomScale.CustomTransform(self.thresh) return CustomScale mscale.register_scale(CustomScaleFactory(1.12, 8.88)) x = np.concatenate((np.linspace(0,1,10), np.linspace(9,10,10))) xticks = np.concatenate((np.linspace(0,1,6), np.linspace(9,10,6))) y = np.sin(x) plt.plot(x, y, '.') ax = plt.gca() ax.set_xscale('custom') ax.set_xticks(xticks) plt.show() </code></pre> <p><img src="https://i.stack.imgur.com/vprHY.png" alt="enter image description here"></p>

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