def draw_stat(self):
if self.stat_test:
label = QGraphicsSimpleTextItem(self.stat_test)
label.setPos((self.scene_min_x + self.scene_max_x)/2 - label.boundingRect().width()/2,
8 + self._axis_font.pixelSize()*2)
label.setFlag(QGraphicsItem.ItemIgnoresTransformations)
self.box_scene.addItem(label)
def draw_axis(self):
"""Draw the horizontal axis and sets self.scale_x"""
misssing_stats = not self.stats
stats = self.stats or [BoxData(np.array([[0.], [1.]]), self.attribute)]
mean_labels = self.mean_labels or [
self.mean_label(stats[0], self.attribute, "")
]
bottom = min(stat.a_min for stat in stats)
top = max(stat.a_max for stat in stats)
first_val, step = compute_scale(bottom, top)
while bottom <= first_val:
first_val -= step
bottom = first_val
no_ticks = math.ceil((top - first_val) / step) + 1
top = max(top, first_val + no_ticks * step)
gbottom = min(bottom, min(stat.mean - stat.dev for stat in stats))
gtop = max(top, max(stat.mean + stat.dev for stat in stats))
bv = self.box_view
viewrect = bv.viewport().rect().adjusted(15, 15, -15, -30)
self.scale_x = scale_x = viewrect.width() / (gtop - gbottom)
# In principle we should repeat this until convergence since the new
# scaling is too conservative. (No chance am I doing this.)
mlb = min(stat.mean + mean_lab.min_x / scale_x
for stat, mean_lab in zip(stats, mean_labels))
if mlb < gbottom:
gbottom = mlb
self.scale_x = scale_x = viewrect.width() / (gtop - gbottom)
self.scene_min_x = gbottom * scale_x
self.scene_max_x = gtop * scale_x
self.scene_width = self.scene_max_x - self.scene_min_x
val = first_val
last_text = self.scene_min_x
while True:
l = self.box_scene.addLine(val * scale_x, -1, val * scale_x, 1,
self._pen_axis_tick)
l.setZValue(100)
t = QGraphicsSimpleTextItem(
self.attribute.str_val(val) if not misssing_stats else "?")
t.setFont(self._axis_font)
t.setFlag(QGraphicsItem.ItemIgnoresTransformations)
r = t.boundingRect()
x_start = val * scale_x - r.width() / 2
x_finish = x_start + r.width()
if x_start > last_text + 10 and x_finish < self.scene_max_x:
t.setPos(x_start, 8)
self.box_scene.addItem(t)
last_text = x_finish
if val >= top:
break
val += step
self.box_scene.addLine(bottom * scale_x - 4, 0, top * scale_x + 4, 0,
self._pen_axis)
def draw_stat(self):
if self.stat_test:
label = QGraphicsSimpleTextItem(self.stat_test)
brect = self.box_scene.sceneRect()
label.setPos(
brect.center().x() - label.boundingRect().width() / 2,
8 + self._axis_font.pixelSize() * 2,
)
label.setFlag(QGraphicsItem.ItemIgnoresTransformations)
self.box_scene.addItem(label)
