def drawLabels(self, qp, ignore = []):
if self.image.isNull() or self.w == 0 or self.h == 0:
return
if not self.annotation:
return
# The overlay is created in the viewing coordinates
# This way, the drawing is more dense and the polygon edges are nicer
# We create an image that is the overlay
# Within this image we draw using another QPainter
# Finally we use the real QPainter to overlay the overlay-image on what is drawn so far
# The image that is used to draw the overlays
overlay = QtGui.QImage( self.w, self.h, QtGui.QImage.Format_ARGB32_Premultiplied )
# Fill the image with the default color
defaultLabel = name2label[self.defaultLabel]
col = QtGui.QColor( *defaultLabel.color )
overlay.fill( col )
# Create a new QPainter that draws in the overlay image
qp2 = QtGui.QPainter()
qp2.begin(overlay)
# The color of the outlines
qp2.setPen(QtGui.QColor('white'))
# Draw all objects
for obj in self.annotation.objects:
# The label of the object
name = assureSingleInstanceName( obj.label )
# If we do not know a color for this label, warn the user
if name not in name2label:
print("The annotations contain unkown labels. This should not happen. Please inform the datasets authors. Thank you!")
print("Details: label '{}', file '{}'".format(name,self.currentLabelFile))
continue
poly = self.getPolygon(obj)
# Scale the polygon properly
polyToDraw = poly * QtGui.QTransform.fromScale(self.scale,self.scale)
# Default drawing
# Color from color table, solid brush
col = QtGui.QColor( *name2label[name].color )
brush = QtGui.QBrush( col, QtCore.Qt.SolidPattern )
qp2.setBrush(brush)
# Overwrite drawing if this is the highlighted object
if self.highlightObj and obj == self.highlightObj:
# First clear everything below of the polygon
qp2.setCompositionMode( QtGui.QPainter.CompositionMode_Clear )
qp2.drawPolygon( polyToDraw )
qp2.setCompositionMode( QtGui.QPainter.CompositionMode_SourceOver )
# Set the drawing to a special pattern
brush = QtGui.QBrush(col,QtCore.Qt.DiagCrossPattern)
qp2.setBrush(brush)
qp2.drawPolygon( polyToDraw )
# Draw outline of selected object dotted
if self.highlightObj:
brush = QtGui.QBrush(QtCore.Qt.NoBrush)
qp2.setBrush(brush)
qp2.setPen(QtCore.Qt.DashLine)
polyToDraw = self.getPolygon(self.highlightObj) * QtGui.QTransform.fromScale(self.scale,self.scale)
qp2.drawPolygon( polyToDraw )
# End the drawing of the overlay
qp2.end()
# Save QPainter settings to stack
qp.save()
# Define transparency
qp.setOpacity(self.transp)
# Draw the overlay image
qp.drawImage(self.xoff,self.yoff,overlay)
# Restore settings
qp.restore()
return overlay
def drawLabels(self, qp, ignore = []):
if self.image.isNull() or self.w == 0 or self.h == 0:
return
if not self.annotation:
return
# The overlay is created in the viewing coordinates
# This way, the drawing is more dense and the polygon edges are nicer
# We create an image that is the overlay
# Within this image we draw using another QPainter
# Finally we use the real QPainter to overlay the overlay-image on what is drawn so far
# The image that is used to draw the overlays
overlay = QtGui.QImage( self.w, self.h, QtGui.QImage.Format_ARGB32_Premultiplied )
# Fill the image with the default color
defaultLabel = name2label[self.defaultLabel]
col = QtGui.QColor( *defaultLabel.color )
overlay.fill( col )
# Create a new QPainter that draws in the overlay image
qp2 = QtGui.QPainter()
qp2.begin(overlay)
# The color of the outlines
qp2.setPen(QtGui.QColor('white'))
# Draw all objects
for obj in self.annotation.objects:
# The label of the object
name = assureSingleInstanceName( obj.label )
# If we do not know a color for this label, warn the user
if name not in name2label:
print("The annotations contain unkown labels. This should not happen. Please inform the datasets authors. Thank you!")
print("Details: label '{}', file '{}'".format(name,self.currentLabelFile))
continue
poly = self.getPolygon(obj)
# Scale the polygon properly
polyToDraw = poly * QtGui.QTransform.fromScale(self.scale,self.scale)
# Default drawing
# Color from color table, solid brush
col = QtGui.QColor( *name2label[name].color )
brush = QtGui.QBrush( col, QtCore.Qt.SolidPattern )
qp2.setBrush(brush)
# Overwrite drawing if this is the highlighted object
if self.highlightObj and obj == self.highlightObj:
# First clear everything below of the polygon
qp2.setCompositionMode( QtGui.QPainter.CompositionMode_Clear )
qp2.drawPolygon( polyToDraw )
qp2.setCompositionMode( QtGui.QPainter.CompositionMode_SourceOver )
# Set the drawing to a special pattern
brush = QtGui.QBrush(col,QtCore.Qt.DiagCrossPattern)
qp2.setBrush(brush)
qp2.drawPolygon( polyToDraw )
# Draw outline of selected object dotted
if self.highlightObj:
brush = QtGui.QBrush(QtCore.Qt.NoBrush)
qp2.setBrush(brush)
qp2.setPen(QtCore.Qt.DashLine)
polyToDraw = self.getPolygon(self.highlightObj) * QtGui.QTransform.fromScale(self.scale,self.scale)
qp2.drawPolygon( polyToDraw )
# End the drawing of the overlay
qp2.end()
# Save QPainter settings to stack
qp.save()
# Define transparency
qp.setOpacity(self.transp)
# Draw the overlay image
qp.drawImage(self.xoff,self.yoff,overlay)
# Restore settings
qp.restore()
return overlay