That's done it - thanks! On Sep 22, 2011, at 8:10 PM, Matthew Turk wrote:
To get it to work with .grid.cpu*, put this at the top of your script:
import yt.frontends.enzo.api yt.frontends.enzo.api.EnzoHierarchy._bn = "%s.grid.cpu%%04i"
The error thrown by quiver looks like an out-of-date matplotlib installation. Sam, Jeff and JC have been improving the quiver plots, one aspect of which is adding the ability to scale the arrows to a given length. That uses the scale_units parameter to quiver, which is definitely part of matplotlib 1.0.0 (the version that ships with the current yt, and has done so for quite a while). They may be able to provide more insight, but upgrading matplotlib or re-running the install script should fix it.
-Matt
On Thu, Sep 22, 2011 at 6:34 AM, Elizabeth Tasker <taskere@mcmaster.ca> wrote:
Sorry -- correction: this problem also occurs with a new data set from Enzo 2.0. It doesn't happen, however, with the older version of yt.
The version it fails on is 9cb628620da6 (yt). Unfortunately, the version it works on gives an error linked with finding the mercurial libraries when I run yt instinfo, so I'm not sure which version it is.
Elizabeth
On Sep 22, 2011, at 6:50 PM, Elizabeth Tasker wrote:
Hi,
I'm trying to analyse an older Enzo simulation which writes its output in hdf5 but with files that look like:
GT_RotFrame_128AMR8_stars_0200.grid.cpu0029
the script runs fine until it reaches pc.save(fn), then I get:
AttributeError Traceback (most recent call last)
/home/taskere/yt/src/yt-hg/scripts/iyt in <module>() ----> 1 2 3 4 5
/home/taskere/yt/src/yt-hg/scripts/iyt in <module>() 55 56 ---> 57 pc.save(fn) 58 59
/home/taskere/yt/src/yt-hg/yt/visualization/plot_collection.pyc in save(self, basename, format, override, force_save) 155 for plot in self.plots: 156 fn.append(plot.save_image(basename, format=format, --> 157 override=override, force_save=force_save)) 158 mylog.info("Saved %s", fn[-1]) 159 if ytcfg.getboolean("yt", "__withinreason"):
/home/taskere/yt/src/yt-hg/yt/visualization/plot_types.pyc in save_image(self, prefix, format, override, force_save, figure_canvas) 106 prefix. 107 """ --> 108 self._redraw_image() 109 if not override: 110 self._generate_prefix(prefix)
/home/taskere/yt/src/yt-hg/yt/visualization/plot_types.pyc in _redraw_image(self, *args) 399 self.norm.autoscale(na.array((newmin,newmax), dtype='float64')) 400 self._reset_image_parameters() --> 401 self._run_callbacks() 402 403 def _reset_image_parameters(self):
/home/taskere/yt/src/yt-hg/yt/visualization/plot_types.pyc in _run_callbacks(self) 256 self._axes.texts = [] 257 for cb in self._callbacks: --> 258 cb(self) 259 260 def set_label(self, label):
/home/taskere/yt/src/yt-hg/yt/visualization/plot_modifications.pyc in __call__(self, plot) 83 yv = "%s-velocity" % (y_names[plot.data.axis]) 84 qcb = QuiverCallback(xv, yv, self.factor, scale=self.scale, scale_units=self.scale_units) ---> 85 return qcb(plot) 86 87 class MagFieldCallback(PlotCallback):
/home/taskere/yt/src/yt-hg/yt/visualization/plot_modifications.pyc in __call__(self, plot) 148 X = na.mgrid[0:plot.image._A.shape[0]-1:nx*1j]# + 0.5*factor 149 Y = na.mgrid[0:plot.image._A.shape[1]-1:ny*1j]# + 0.5*factor --> 150 plot._axes.quiver(X,Y, pixX, pixY, scale=self.scale, scale_units=self.scale_units) 151 plot._axes.set_xlim(xx0,xx1) 152 plot._axes.set_ylim(yy0,yy1)
/home/taskere/yt/lib/python2.6/site-packages/matplotlib/axes.pyc in quiver(self, *args, **kw) 5873 def quiver(self, *args, **kw): 5874 if not self._hold: self.cla() -> 5875 q = mquiver.Quiver(self, *args, **kw) 5876 self.add_collection(q, False) 5877 self.update_datalim(q.XY)
/home/taskere/yt/lib/python2.6/site-packages/matplotlib/quiver.pyc in __init__(self, ax, *args, **kw) 392 transOffset=ax.transData, 393 closed=False, --> 394 **kw) 395 self.polykw = kw 396 self.set_UVC(U, V, C)
/home/taskere/yt/lib/python2.6/site-packages/matplotlib/collections.pyc in __init__(self, verts, sizes, closed, **kwargs) 664 %(Collection)s 665 """ --> 666 Collection.__init__(self,**kwargs) 667 self._sizes = sizes 668 self.set_verts(verts, closed)
/home/taskere/yt/lib/python2.6/site-packages/matplotlib/collections.pyc in __init__(self, edgecolors, facecolors, linewidths, linestyles, antialiaseds, offsets, transOffset, norm, cmap, pickradius, urls, **kwargs) 106 107 self._pickradius = pickradius --> 108 self.update(kwargs) 109 110
/home/taskere/yt/lib/python2.6/site-packages/matplotlib/artist.pyc in update(self, props) 624 func = getattr(self, 'set_'+k, None) 625 if func is None or not callable(func): --> 626 raise AttributeError('Unknown property %s'%k) 627 func(v) 628 changed = True
AttributeError: Unknown property scale_units
Is there an easy fix for this? If it helps, an example data set is at:
http://www.physics.mcmaster.ca/~taskere/GT_RotFrame_128AMR8_stars_0200.tar.g...
(about 650 Mb) and the yt script:
http://paste.yt-project.org/show/1816/
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