.. _pylab_examples-axes_zoom_effect: pylab_examples example code: axes_zoom_effect.py ================================================ .. plot:: /home/tcaswell/other_source/matplotlib/doc/mpl_examples/pylab_examples/axes_zoom_effect.py :: from matplotlib.transforms import Bbox, TransformedBbox, \ blended_transform_factory from mpl_toolkits.axes_grid1.inset_locator import BboxPatch, BboxConnector,\ BboxConnectorPatch def connect_bbox(bbox1, bbox2, loc1a, loc2a, loc1b, loc2b, prop_lines, prop_patches=None): if prop_patches is None: prop_patches = prop_lines.copy() prop_patches["alpha"] = prop_patches.get("alpha", 1)*0.2 c1 = BboxConnector(bbox1, bbox2, loc1=loc1a, loc2=loc2a, **prop_lines) c1.set_clip_on(False) c2 = BboxConnector(bbox1, bbox2, loc1=loc1b, loc2=loc2b, **prop_lines) c2.set_clip_on(False) bbox_patch1 = BboxPatch(bbox1, **prop_patches) bbox_patch2 = BboxPatch(bbox2, **prop_patches) p = BboxConnectorPatch(bbox1, bbox2, #loc1a=3, loc2a=2, loc1b=4, loc2b=1, loc1a=loc1a, loc2a=loc2a, loc1b=loc1b, loc2b=loc2b, **prop_patches) p.set_clip_on(False) return c1, c2, bbox_patch1, bbox_patch2, p def zoom_effect01(ax1, ax2, xmin, xmax, **kwargs): """ ax1 : the main axes ax1 : the zoomed axes (xmin,xmax) : the limits of the colored area in both plot axes. connect ax1 & ax2. The x-range of (xmin, xmax) in both axes will be marked. The keywords parameters will be used ti create patches. """ trans1 = blended_transform_factory(ax1.transData, ax1.transAxes) trans2 = blended_transform_factory(ax2.transData, ax2.transAxes) bbox = Bbox.from_extents(xmin, 0, xmax, 1) mybbox1 = TransformedBbox(bbox, trans1) mybbox2 = TransformedBbox(bbox, trans2) prop_patches=kwargs.copy() prop_patches["ec"]="none" prop_patches["alpha"]=0.2 c1, c2, bbox_patch1, bbox_patch2, p = \ connect_bbox(mybbox1, mybbox2, loc1a=3, loc2a=2, loc1b=4, loc2b=1, prop_lines=kwargs, prop_patches=prop_patches) ax1.add_patch(bbox_patch1) ax2.add_patch(bbox_patch2) ax2.add_patch(c1) ax2.add_patch(c2) ax2.add_patch(p) return c1, c2, bbox_patch1, bbox_patch2, p def zoom_effect02(ax1, ax2, **kwargs): """ ax1 : the main axes ax1 : the zoomed axes Similar to zoom_effect01. The xmin & xmax will be taken from the ax1.viewLim. """ tt = ax1.transScale + (ax1.transLimits + ax2.transAxes) trans = blended_transform_factory(ax2.transData, tt) mybbox1 = ax1.bbox mybbox2 = TransformedBbox(ax1.viewLim, trans) prop_patches=kwargs.copy() prop_patches["ec"]="none" prop_patches["alpha"]=0.2 c1, c2, bbox_patch1, bbox_patch2, p = \ connect_bbox(mybbox1, mybbox2, loc1a=3, loc2a=2, loc1b=4, loc2b=1, prop_lines=kwargs, prop_patches=prop_patches) ax1.add_patch(bbox_patch1) ax2.add_patch(bbox_patch2) ax2.add_patch(c1) ax2.add_patch(c2) ax2.add_patch(p) return c1, c2, bbox_patch1, bbox_patch2, p import matplotlib.pyplot as plt plt.figure(1, figsize=(5,5)) ax1 = plt.subplot(221) ax2 = plt.subplot(212) ax2.set_xlim(0, 1) ax2.set_xlim(0, 5) zoom_effect01(ax1, ax2, 0.2, 0.8) ax1 = plt.subplot(222) ax1.set_xlim(2, 3) ax2.set_xlim(0, 5) zoom_effect02(ax1, ax2) plt.show() Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)