Why is the yRadius of the first cell wrong here? After trying out a bunch of different values for xlim and ylim I found the pattern that the minimum of the two radii in the first cell is correct, while the other one is off. I think the bottom cell's values are correct, because since the ax aspect is set to be equal, the two radii should be the same. Why are the values of the two cells not the same? Although the xRadius of the first cell matches the values of the bottom cell, the yRadius is off. In a cell below the above cell, if I run yradius = (ax.ansform() - ax.ansform()) To demonstrate, here is code running the transformation in the cell where fig, ax = plt.subplots() is declared: fig, ax = plt.subplots() However, if you run ax.ansform in a later cell, it returns the correct values. Basically, in the cell where fig, ax = plt.subplots() is declared, running ax.ansform for either the x or y axis is incorrect. Thread: Matplotlib-users ansform on log plot Brought to you by: cjgohlke, dsdale, efiring, heeres, and 8 others. I was suffering a really bizarre issue with matplotlib's ax.ansform in ipython. scatter ( theta, radius ) ax3, aux_ax3 = setup_axes3 ( fig, 133 ) theta = ( 8 np. #aux_ax1.scatter(theta, radius) ax2, aux_ax2 = setup_axes2 ( fig, 132 ) theta = np. axes, ax.transAxes, The coordinate system of the Axes (0, 0) is bottom left. Note that the extreme values are swapped. transData, The coordinate system for the data, controlled by xlim and ylim. _nbins = 4 return ax1, aux_ax def setup_axes2 ( fig, rect ): """ With custom locator and formatter. FloatingSubplot ( fig, rect, grid_helper = grid_helper ) fig. ''' rect (rect) def secondarylocator(ax, renderer): delay evaluating transform until draw time because the parent transform may have changed (i.e. tz is a tzinfo instance or a timezone string. here rect is a rectangle l, b, w, h that specifies the location for the axes in the transform given by trans on the parent. GridHelperCurveLinear ( tr, extremes = ( 0, 4, 0, 4 )) ax1 = floating_axes. ansAxes - transform axis coords to display coords labelpad - number of points between the axis and its label Init the axis with the parent Axes instance OFFSETTEXTPAD 3 axisdate (tzNone) Sets up x-axis ticks and labels that treat the x data as dates. rotate_deg ( 30 ) grid_helper = floating_axes. show () #plt.savefig("Test")įrom ansforms import Affine2D import mpl_axes as floating_axes import numpy as np import mpl_helper as angle_helper from matplotlib.projections import PolarAxes from mpl_finder import FixedLocator, MaxNLocator, \ĭictFormatter def setup_axes1 ( fig, rect ): """ A simple one. As such it is useful when positioning relative to the axes, like top-center of the plot. Points (0, 0) and (1, 1) define the bottom-left and top-right corners of the axes. Axes coordinate system is the system tied to its Axes object. Its corresponding transformation object is ax.transData. plot (,, label = "Temperature" ) p3, = par2. The range is given by the xlim and ylim properties of Axes. plot (,, label = "Density" ) p2, = par1. axis = new_fixed_axis ( loc = "right", axes = par2, offset = ( offset, 0 )) par2. twinx () offset = 60 new_fixed_axis = par2. subplots_adjust ( right = 0.75 ) par1 = host. fig if 1 : host = host_subplot ( 111, axes_class = AA. show () #plt.savefig("Test")įrom mpl_toolkits.axes_grid1 import host_subplot import mpl_toolkits.axisartist as AA import matplotlib.pyplot as plt fig = plt. plot (,, label = "Temperature" ) p3, = par2. axis = new_fixed_axis ( loc = "right", axes = par2, offset = ( offset, 0 )) par2. Axis (axes, pickradius15) ¶ Public attributes. # %load from mpl_toolkits.axes_grid1 import host_subplot import mpl_toolkits.axisartist as AA import matplotlib.pyplot as plt if 1 : host = host_subplot ( 111, axes_class = AA.
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