Dumpreader_ifc inherits high level functions from FieldAnalyzer

The Dumpreader_ifc (and thus any Dumpreader) inherits all the high level
functions from the FieldAnalyzer. The Files are still kept separate to
make the diffenrent abstraction levels more obvious. Anyways, there is
no need to call the FieldAnalyzer directly anymore.

examples/simpleexample.py

@@ -24,9 +24,6 @@
 # project name will be prepended to all output names
 plotter = pp.plotting.plottercls(dr, outdir=savedir, autosave=True, project='simpleexample')
 
-# create the field analyzer to access field data (E and B fields) easily
-fa = pp.analyzer.FieldAnalyzer(dr)
-
 # we will need a refrence to the ParticleAnalyzer quite often
 from postpic.analyzer import ParticleAnalyzer as PA
 
@@ -35,10 +32,10 @@
 
 if True:
     # Plot Data from the FieldAnalyzer fa. This is very simple: every line creates one plot
-    plotter.plotField(fa.Ex())  # plot 0
-    plotter.plotField(fa.Ey())  # plot 1
-    plotter.plotField(fa.Ez())  # plot 2
-    plotter.plotField(fa.energydensityEM())  # plot 3
+    plotter.plotField(dr.Ex())  # plot 0
+    plotter.plotField(dr.Ey())  # plot 1
+    plotter.plotField(dr.Ez())  # plot 2
+    plotter.plotField(dr.energydensityEM())  # plot 3
 
     # Using the ParticleAnalyzer requires an additional step:
     # 1) The ParticleAnalyzer.createField method will be used to create a Field object

postpic/analyzer/__init__.py

@@ -18,9 +18,11 @@
 Analyzer package provides Classes and functions for analyzing
 Particle and Field Data.
 """
-
 from analyzer import *
 from particles import ParticleAnalyzer
 from fields import FieldAnalyzer
 
+__all__ = ['ParticleAnalyzer', 'FieldAnalyzer', 'identifyspecies']
+__all__ += analyzer.__all__
+
 identifyspecies = analyzer.SpeciesIdentifier.identifyspecies

postpic/datareader/__init__.py

@@ -48,11 +48,12 @@
 import numpy as np
 from .. import _const
 from .. import datahandling as dh
+from ..analyzer import FieldAnalyzer
 
 # --- Interface ---
 
 
-class Dumpreader_ifc(object):
+class Dumpreader_ifc(FieldAnalyzer):
     '''
     Interface class for reading a single dump. A dump contains informations
     about the  simulation at a single timestep (Usually E- and B-Fields on
@@ -88,6 +89,7 @@ class Dumpreader_ifc(object):
     __metaclass__ = abc.ABCMeta
 
     def __init__(self, dumpidentifier, name=None):
+        super(Dumpreader_ifc, self).__init__(self)
         self.dumpidentifier = dumpidentifier
         self._name = name