* Fix range option for some Charts (Fix #297 Fix #298)

demo/moulinrouge/tests.py

@@ -354,6 +354,13 @@ def get_test_routes(app):
         graph.add('2', [73, -14, 10, None, -58, 32, 91])
         return graph.render_response()
 
+    @app.route('/test/range/<chart>')
+    def test_range_for(chart):
+        graph = CHARTS_BY_NAME[chart]()
+        graph.range = [0, 100]
+        graph.add('1', [1, 2, 10])
+        return graph.render_response()
+
     @app.route('/test/fill_with_none/')
     def test_fill_with_none():
         graph = XY(fill=True)

docs/changelog.rst

@@ -10,6 +10,8 @@ Changelog
 * Add horizontal line charts (thanks @chartique #301)
 * There is now a `formatter` config option to format values as specified. The formatter callable may or may not take `chart`, `serie` and `index` as argument. The default value formatting is now chart dependent and is value_formatter for most graph but could be a combination of value_formatter and x_value_formatter for dual charts.
 * The `human_readable` option has been removed. Now you have to use the pygal.formatters.human_readable formatter (value_formatter=human_readable instead of human_readable=True)
+* New chart type: SolidGauge (thanks @chartique #295)
+* Fix range option for some Charts (#297 #298)
 
 2.1.1
 =====

pygal/graph/funnel.py

@@ -90,6 +90,12 @@ class Funnel(Graph):
         self._box.ymin = -val_max
         self._box.ymax = val_max
 
+        if self.range and self.range[0] is not None:
+            self._box.ymin = self.range[0]
+
+        if self.range and self.range[1] is not None:
+            self._box.ymax = self.range[1]
+
     def _compute_x_labels(self):
         self._x_labels = list(
             zip(self.x_labels and

pygal/graph/histogram.py

@@ -125,3 +125,9 @@ class Histogram(Dual, Bar):
             self._box.xmin, self._box.xmax = xmin, xmax
         if yrng:
             self._box.ymin, self._box.ymax = ymin, ymax
+
+        if self.range and self.range[0] is not None:
+            self._box.ymin = self.range[0]
+
+        if self.range and self.range[1] is not None:
+            self._box.ymax = self.range[1]

pygal/graph/pyramid.py

@@ -54,9 +54,19 @@ class VerticalPyramid(StackedBar):
 
     def _compute_box(self, positive_vals, negative_vals):
         """Compute Y min and max"""
-        self._box.ymax = max(max(positive_vals or [self.zero]),
-                             max(negative_vals or [self.zero]))
-        self._box.ymin = - self._box.ymax
+        max_ = max(
+            max(positive_vals or [self.zero]),
+            max(negative_vals or [self.zero]))
+
+        if self.range and self.range[0] is not None:
+            self._box.ymin = self.range[0]
+        else:
+            self._box.ymin = - max_
+
+        if self.range and self.range[1] is not None:
+            self._box.ymax = self.range[1]
+        else:
+            self._box.ymax = max_
 
     def _pre_compute_secondary(self, positive_vals, negative_vals):
         """Compute secondary y min and max"""

pygal/graph/stackedbar.py

@@ -50,10 +50,16 @@ class StackedBar(Bar):
 
     def _compute_box(self, positive_vals, negative_vals):
         """Compute Y min and max"""
-        self._box.ymin = negative_vals and min(
-            min(negative_vals), self.zero) or self.zero
-        self._box.ymax = positive_vals and max(
-            max(positive_vals), self.zero) or self.zero
+        if self.range and self.range[0] is not None:
+            self._box.ymin = self.range[0]
+        else:
+            self._box.ymin = negative_vals and min(
+                min(negative_vals), self.zero) or self.zero
+        if self.range and self.range[1] is not None:
+            self._box.ymax = self.range[1]
+        else:
+            self._box.ymax = positive_vals and max(
+                max(positive_vals), self.zero) or self.zero
 
     def _compute(self):
         """Compute y min and max and y scale and set labels"""

pygal/test/test_config.py

@@ -390,6 +390,23 @@ def test_x_y_title(Chart):
     assert len(q('.titles .title')) == 3
 
 
+def test_range(Chart):
+    """Test y label major option"""
+    if Chart in (
+            Pie, Treemap, Dot, SolidGauge
+    ) or issubclass(Chart, BaseMap):
+        return
+    chart = Chart()
+    chart.range = (0, 100)
+    chart.add('', [1, 2, 10])
+    q = chart.render_pyquery()
+    axis = map(str, range(0, 101, 10))
+    if Chart == Radar:
+        axis = map(str, range(100, -1, -20))
+    z = 'x' if getattr(chart, 'horizontal', False) or Chart == Gauge else 'y'
+    assert [t.text for t in q('.axis.%s .guides text' % z)] == list(axis)
+
+
 def test_x_label_major(Chart):
     """Test x label major option"""
     if Chart in (

pygal/view.py

@@ -79,7 +79,7 @@ class Box(object):
     @xmin.setter
     def xmin(self, value):
         """X minimum setter"""
-        if value:
+        if value is not None:
             self._xmin = value
 
     @property
@@ -90,7 +90,7 @@ class Box(object):
     @ymin.setter
     def ymin(self, value):
         """Y minimum setter"""
-        if value:
+        if value is not None:
             self._ymin = value
 
     @property
@@ -101,7 +101,7 @@ class Box(object):
     @xmax.setter
     def xmax(self, value):
         """X maximum setter"""
-        if value:
+        if value is not None:
             self._xmax = value
 
     @property