Fill colors can now be specified. Fixes issue #227.

bin/weeplot/genplot.py

@@ -273,7 +273,6 @@ class GeneralPlot(object):
         for x in weeutil.weeutil.stampgen(self.xscale[0], self.xscale[1], self.xscale[2]) :
             sdraw.line((x, x), (self.yscale[0], self.yscale[1]), fill=self.chart_gridline_color,
                        width=self.anti_alias)
-            drawlabel = not drawlabel
             if drawlabelcount % self.x_label_spacing == 0 :
                 xlabel = self._genXLabel(x)
                 axis_label_size = sdraw.draw.textsize(xlabel, font=axis_label_font)
@@ -552,7 +551,7 @@ class PlotLine(object):
     """Represents a single line (or bar) in a plot.
     
     """
-    def __init__(self, x, y, label='', color=None, width=None, plot_type='line',
+    def __init__(self, x, y, label='', color=None, fill_color=None, width=None, plot_type='line',
                  line_type='solid', marker_type=None, marker_size=10, 
                  bar_width=None, vector_rotate = None, gap_fraction=None,
                  x_label_spacing=2, y_label_spacing=2):
@@ -564,7 +563,7 @@ class PlotLine(object):
         self.marker_type     = marker_type
         self.marker_size     = marker_size
         self.color           = color
-        self.fill_color      = color
+        self.fill_color      = fill_color
         self.width           = width
         self.bar_width       = bar_width
         self.vector_rotate   = vector_rotate

bin/weewx/imagegenerator.py

@@ -169,6 +169,8 @@ class ImageGenerator(weewx.reportengine.ReportGenerator):
                     # See if a color has been explicitly requested.
                     color = line_options.get('color')
                     if color is not None: color = weeplot.utilities.tobgr(color)
+                    fill_color = line_options.get('fill_color')
+                    if fill_color is not None: fill_color = weeplot.utilities.tobgr(fill_color)
                     
                     # Get the line width, if explicitly requested.
                     width = to_int(line_options.get('width'))
@@ -212,6 +214,7 @@ class ImageGenerator(weewx.reportengine.ReportGenerator):
                         new_stop_vec_t[0], new_data_vec_t[0],
                         label         = label, 
                         color         = color,
+                        fill_color    = fill_color,
                         width         = width,
                         plot_type     = plot_type,
                         line_type     = line_type,

docs/changes.txt

@@ -7,6 +7,9 @@ The ordinal increment between x- and y-axis labels can now be chosen.
 The increment between x-axis tick marks can now be chosen. Thanks
 to user paolobenve!
 
+Bar chart fill colors can now be specified for individual observation
+types. Fixes issue #227.
+
 
 3.7.0 03/11/2017
 

docs/customizing.htm

@@ -4937,6 +4937,13 @@ UV      = UV Index</pre>
         Optional. Default is to use the color in <span class="code">chart_line_colors</span>.
       </p>
 
+      <p class="config_option">fill_color</p>
+
+      <p>
+        This option is to override the fill color for a bar chart.
+        Optional. Default is to use the color in <span class="code">chart_fill_colors</span>.
+      </p>
+
       <p class="config_option">line_type</p>
 
       <p>