def __init__(self, widget, parent=None, name=None):
OWPlot.__init__(self, parent, name, axes=[], widget=widget)
ScaleData.__init__(self)
self.update_antialiasing(False)
self.widget = widget
self.last_selected_curve = None
self.enableGridXB(0)
self.enableGridYL(0)
self.domain_contingencies = None
self.auto_update_axes = 1
self.old_legend_keys = []
self.selection_conditions = {}
self.attributes = []
self.visualized_mid_labels = []
self.attribute_indices = []
self.valid_data = []
self.groups = {}
self.colors = None
self.selected_examples = []
self.unselected_examples = []
self.bottom_pixmap = QPixmap(
gui.resource_filename("icons/upgreenarrow.png"))
self.top_pixmap = QPixmap(
gui.resource_filename("icons/downgreenarrow.png"))
def __init__(self, widget, parent=None, name=None):
OWPlot.__init__(self, parent, name, axes=[], widget=widget)
ScaleData.__init__(self)
self.update_antialiasing(False)
self.widget = widget
self.last_selected_curve = None
self.enableGridXB(0)
self.enableGridYL(0)
self.domain_contingencies = None
self.auto_update_axes = 1
self.old_legend_keys = []
self.selection_conditions = {}
self.attributes = []
self.visualized_mid_labels = []
self.attribute_indices = []
self.valid_data = []
self.groups = {}
self.colors = None
self.selected_examples = []
self.unselected_examples = []
self.bottom_pixmap = QPixmap(gui.resource_filename("icons/upgreenarrow.png"))
self.top_pixmap = QPixmap(gui.resource_filename("icons/downgreenarrow.png"))
def mousePressEvent(self, e):
canvas_position = self.mapToScene(e.pos())
x = self.inv_transform(xBottom, canvas_position.x())
contact, info = self.testArrowContact(int(round(x)), canvas_position.x(), canvas_position.y())
if contact:
self.pressed_arrow = info
else:
OWPlot.mousePressEvent(self, e)
def mousePressEvent(self, e):
canvas_position = self.mapToScene(e.pos())
x = self.inv_transform(xBottom, canvas_position.x())
contact, info = self.testArrowContact(int(round(x)), canvas_position.x(), canvas_position.y())
if contact:
self.pressed_arrow = info
else:
OWPlot.mousePressEvent(self, e)
def set_data(self, data, subset_data=None, **args):
self.start_progress()
self.set_progress(1, 100)
self.data = data
self.have_data = True
self.domain_contingencies = None
self.groups = {}
OWPlot.setData(self, data)
ScaleData.set_data(self, data, subset_data, no_data=True, **args)
self.end_progress()
def set_data(self, data, subset_data=None, **args):
self.start_progress()
self.set_progress(1, 100)
self.data = data
self.have_data = True
self.domain_contingencies = None
self.groups = {}
OWPlot.setData(self, data)
ScaleData.set_data(self, data, no_data=True, **args)
self.end_progress()
def drawCanvas(self, painter):
OWPlot.drawCanvas(self, painter)
for i in range(
int(max(0, math.floor(self.axisScaleDiv(xBottom).interval().minValue()))),
int(min(len(self.attributes),
math.ceil(self.axisScaleDiv(xBottom).interval().maxValue()) + 1))):
bottom, top = self.selection_conditions.get(self.attributes[i], (0, 1))
painter.drawPixmap(self.transform(xBottom, i) - self.bottom_pixmap.width() / 2,
self.transform(yLeft, bottom), self.bottom_pixmap)
painter.drawPixmap(self.transform(xBottom, i) - self.top_pixmap.width() / 2,
self.transform(yLeft, top) - self.top_pixmap.height(), self.top_pixmap)
def drawCanvas(self, painter):
OWPlot.drawCanvas(self, painter)
for i in range(
int(max(0, math.floor(self.axisScaleDiv(xBottom).interval().minValue()))),
int(min(len(self.attributes),
math.ceil(self.axisScaleDiv(xBottom).interval().maxValue()) + 1))):
bottom, top = self.selection_conditions.get(self.attributes[i], (0, 1))
painter.drawPixmap(self.transform(xBottom, i) - self.bottom_pixmap.width() / 2,
self.transform(yLeft, bottom), self.bottom_pixmap)
painter.drawPixmap(self.transform(xBottom, i) - self.top_pixmap.width() / 2,
self.transform(yLeft, top) - self.top_pixmap.height(), self.top_pixmap)
def mouseMoveEvent(self, e):
if hasattr(self, "pressed_arrow"):
canvas_position = self.mapToScene(e.pos())
y = min(1, max(0, self.inv_transform(yLeft, canvas_position.y())))
index, pos = self.pressed_arrow
attr = self.data_domain[self.attributes[index]]
old_condition = self.selection_conditions.get(attr.name, [0, 1])
old_condition[pos] = y
self.selection_conditions[attr.name] = old_condition
self.update_data(self.attributes, self.visualized_mid_labels)
if isinstance(attr, ContinuousVariable):
val = self.attr_values[attr.name][0] + old_condition[pos] * (
self.attr_values[attr.name][1] - self.attr_values[attr.name][0])
strVal = attr.name + "= %.2f" % val
QToolTip.showText(e.globalPos(), strVal)
if self.sendSelectionOnUpdate and self.auto_send_selection_callback:
self.auto_send_selection_callback()
else:
OWPlot.mouseMoveEvent(self, e)
def event(self, ev):
if ev.type() == QEvent.ToolTip:
x = self.inv_transform(xBottom, ev.pos().x())
y = self.inv_transform(yLeft, ev.pos().y())
canvas_position = self.mapToScene(ev.pos())
x_float = self.inv_transform(xBottom, canvas_position.x())
contact, (index, pos) = self.testArrowContact(int(round(x_float)), canvas_position.x(), canvas_position.y())
if contact:
attr = self.data_domain[self.attributes[index]]
if isinstance(attr, ContinuousVariable):
condition = self.selection_conditions.get(attr.name, [0, 1])
val = self.attr_values[attr.name][0] + condition[pos] * (
self.attr_values[attr.name][1] - self.attr_values[attr.name][0]
)
str_val = attr.name + "= %%.%df" % attr.number_of_decimals % val
QToolTip.showText(ev.globalPos(), str_val)
else:
for curve in self.items():
if (
type(curve) == PolygonCurve
and curve.boundingRect().contains(x, y)
and getattr(curve, "tooltip", None)
):
(name, value, total, dist) = curve.tooltip
count = sum([v[1] for v in dist])
if count == 0:
continue
tooltip_text = (
"Attribute: <b>%s</b><br>Value: <b>%s</b><br>"
"Total instances: <b>%i</b> (%.1f%%)<br>"
"Class distribution:<br>" % (name, value, count, 100.0 * count / float(total))
)
for (val, n) in dist:
tooltip_text += " <b>%s</b> : <b>%i</b> (%.1f%%)<br>" % (
val,
n,
100.0 * float(n) / float(count),
)
QToolTip.showText(ev.globalPos(), tooltip_text[:-4])
elif ev.type() == QEvent.MouseMove:
QToolTip.hideText()
return OWPlot.event(self, ev)
def event(self, ev):
if ev.type() == QEvent.ToolTip:
x = self.inv_transform(xBottom, ev.pos().x())
y = self.inv_transform(yLeft, ev.pos().y())
canvas_position = self.mapToScene(ev.pos())
x_float = self.inv_transform(xBottom, canvas_position.x())
contact, (index,
pos) = self.testArrowContact(int(round(x_float)),
canvas_position.x(),
canvas_position.y())
if contact:
attr = self.data_domain[self.attributes[index]]
if attr.is_continuous:
condition = self.selection_conditions.get(
attr.name, [0, 1])
val = self.attr_values[attr.name][0] + condition[pos] * (
self.attr_values[attr.name][1] -
self.attr_values[attr.name][0])
str_val = attr.name + "= %%.%df" % attr.number_of_decimals % val
QToolTip.showText(ev.globalPos(), str_val)
else:
for curve in self.items():
if type(curve) == PolygonCurve and \
curve.boundingRect().contains(x, y) and \
getattr(curve, "tooltip", None):
(name, value, total, dist) = curve.tooltip
count = sum([v[1] for v in dist])
if count == 0:
continue
tooltip_text = "Attribute: <b>%s</b><br>Value: <b>%s</b><br>" \
"Total instances: <b>%i</b> (%.1f%%)<br>" \
"Class distribution:<br>" % (
name, value, count, 100.0 * count / float(total))
for (val, n) in dist:
tooltip_text += " <b>%s</b> : <b>%i</b> (%.1f%%)<br>" % (
val, n, 100.0 * float(n) / float(count))
QToolTip.showText(ev.globalPos(), tooltip_text[:-4])
elif ev.type() == QEvent.MouseMove:
QToolTip.hideText()
return OWPlot.event(self, ev)
def mouseReleaseEvent(self, e):
if hasattr(self, "pressed_arrow"):
del self.pressed_arrow
else:
OWPlot.mouseReleaseEvent(self, e)
def set_data(self, data, subset_data=None, **args):
OWPlot.setData(self, data)
ScaleData.set_data(self, data, subset_data, **args)
self.domain_contingencies = None
def set_data(self, data, subset_data=None, **args):
OWPlot.setData(self, data)
ScaleData.set_data(self, data, subset_data, **args)
self.domain_contingencies = None
