--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/psymap_simple.py	Thu Apr 25 18:11:49 2019 -0400
@@ -0,0 +1,116 @@
+#!/usr/bin/env python3
+#
+#
+# usage: psymap_simple.py [-h] [--proj PROJ]
+#                              [--cmap CMAP]
+#                              [--output OUTPUT]
+#                              [-v]
+#                              input varname
+#
+# positional arguments:
+#  input            input filename with geographical coordinates (netCDF
+#                   format)
+#  varname          Specify which variable to plot (case sensitive)
+#
+# optional arguments:
+#  -h, --help       show this help message and exit
+#  --proj PROJ      Specify the projection on which we draw
+#  --cmap CMAP      Specify which colormap to use for plotting
+#  --output OUTPUT  output filename to store resulting image (png format)
+#  -v, --verbose    switch on verbose mode
+#
+
+import argparse
+import warnings
+from pathlib import Path
+
+import matplotlib as mpl
+mpl.use('Agg')
+from matplotlib import pyplot  # noqa: I202,E402
+
+import psyplot.project as psy  # noqa: I202,E402
+
+
+class PsyPlot ():
+    def __init__(self, input, proj, varname, cmap, output,
+                 verbose=False
+                 ):
+        self.input = input
+        self.proj = proj
+        self.varname = varname
+        self.cmap = cmap
+        if output is None:
+            self.output = Path(input).stem + '.png'
+        else:
+            self.output = output
+        self.verbose = verbose
+        if verbose:
+            print("input: ", self.input)
+            print("proj: ", self.proj)
+            print("varname: ", self.varname)
+            print("cmap: ", self.cmap)
+            print("output: ", self.output)
+
+    def plot(self):
+        if self.cmap is None and self.proj is None:
+            print("op1")
+            psy.plot.mapplot(self.input, name=self.varname,
+                             clabel='{desc}')
+        elif self.proj is None or self.proj == '':
+            print("op2")
+            psy.plot.mapplot(self.input, name=self.varname,
+                             cmap=self.cmap, clabel='{desc}')
+        elif self.cmap is None or self.cmap == '':
+            print("op3")
+            psy.plot.mapplot(self.input, name=self.varname,
+                             projection=self.proj,
+                             clabel='{desc}')
+        else:
+            print("op4")
+            psy.plot.mapplot(self.input, name=self.varname,
+                             cmap=self.cmap,
+                             projection=self.proj,
+                             clabel='{desc}')
+
+        pyplot.savefig(self.output)
+
+
+def psymap_plot(input, proj, varname, cmap, output, verbose):
+    """Generate plot from input filename"""
+
+    p = PsyPlot(input, proj, varname, cmap, output, verbose)
+    p.plot()
+
+
+if __name__ == '__main__':
+    warnings.filterwarnings("ignore")
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        'input',
+        help='input filename with geographical coordinates (netCDF format)'
+    )
+
+    parser.add_argument(
+        '--proj',
+        help='Specify the projection on which we draw'
+    )
+    parser.add_argument(
+        'varname',
+        help='Specify which variable to plot (case sensitive)'
+    )
+    parser.add_argument(
+        '--cmap',
+        help='Specify which colormap to use for plotting'
+    )
+    parser.add_argument(
+        '--output',
+        help='output filename to store resulting image (png format)'
+    )
+    parser.add_argument(
+        "-v", "--verbose",
+        help="switch on verbose mode",
+        action="store_true")
+    args = parser.parse_args()
+
+    psymap_plot(args.input, args.proj, args.varname, args.cmap,
+                args.output, args.verbose)