added keyword to GeoArray.show_map() to make figure zoomable

io.raster.GeoArray.GeoArray:
- show_map() added keyword to make figure zoomable

- updated __version__

ptds/__init__.py

@@ -15,7 +15,7 @@ __all__=[#'compatibility',
          'similarity',
          'GeoArray']
 
-__version__ = '20170315_01'
+__version__ = '20170316_01'
 __author__='Daniel Scheffler'
 
 # Validate GDAL version

ptds/io/raster/GeoArray.py

@@ -804,7 +804,7 @@ class GeoArray(object):
             os.makedirs(os.path.dirname(out_path))
 
         if self.is_inmem:
-            ds     = get_GDAL_ds_inmem(self.arr,self.geotransform, self.projection, self.nodata) # expects rows,columns,bands
+            ds = get_GDAL_ds_inmem(self.arr,self.geotransform, self.projection, self.nodata) # expects rows,columns,bands
 
             # set metadata
             if not self.metadata.empty:
@@ -819,7 +819,7 @@ class GeoArray(object):
 
             #out_arr = self.arr if self.ndim == 2 else np.swapaxes(np.swapaxes(self.arr, 0, 2), 1, 2)  # rows, columns, bands => bands, rows, columns
             #gdalnumeric.SaveArray(out_arr, out_path, format=fmt, prototype=ds) # expects bands,rows,columns
-            ds      = None
+            ds = None
 
         else:
             src_ds = gdal.Open(self.filePath)
@@ -951,7 +951,7 @@ class GeoArray(object):
 
 
     def show_map(self, xlim=None, ylim=None, band=0, boundsMap=None, boundsMapPrj=None, figsize=None,
-                 interpolation='none', cmap=None, nodataVal=None, res_factor=None, return_map=False):
+                 interpolation='none', cmap=None, nodataVal=None, res_factor=None, return_map=False, zoomable=False):
         """
 
         :param xlim:
@@ -965,9 +965,20 @@ class GeoArray(object):
         :param nodataVal:
         :param res_factor:
         :param return_map:
+        :param zoomable:        <bool> enable or disable zooming via mpld3
         :return:
         """
         from mpl_toolkits.basemap import Basemap
+        try:
+            import mpld3
+            if zoomable:
+                mpld3.enable_notebook()
+            else:
+                mpld3.disable_notebook()
+        except:
+            if zoomable:
+                zoomable = False
+                warnings.warn('mpld3 is not available. Zooming disabled.')
 
         assert self.geotransform and tuple(self.geotransform) != (0,1,0,0,0,-1),\
             'A valid geotransform is needed for a map visualization. Got %s.' %self.geotransform
@@ -1010,7 +1021,10 @@ class GeoArray(object):
         palette.set_under('0')
 
         # add image to map (y-axis must be inverted for basemap)
-        m.imshow(np.flipud(image2plot), palette, interpolation=interpolation, vmin=vmin, vmax=vmax)
+        if zoomable:
+            m.imshow(image2plot, palette, interpolation=interpolation, vmin=vmin, vmax=vmax)
+        else:
+            m.imshow(np.flipud(image2plot), palette, interpolation=interpolation, vmin=vmin, vmax=vmax)
 
         # add coordinate grid lines
         parallels = np.arange(-90, 90., 0.25)