def drawKeySymbol(self, number, painter, x, y, width, height):
"""Draw the plot symbol and/or line."""
painter.save()
s = self.settings
painter.setPen( s.Line.makeQPenWHide(painter) )
painter.setBrush( s.get('Fill').makeQBrushWHide() )
utils.plotLineArrow(painter, x+width, y+height*0.5,
width, 180, height*0.25,
arrowleft=s.arrowfront,
arrowright=s.arrowback)
painter.restore()
def drawKeySymbol(self, number, painter, x, y, width, height):
"""Draw the plot symbol and/or line."""
painter.save()
s = self.settings
painter.setPen(s.Line.makeQPenWHide(painter))
painter.setBrush(s.get('Fill').makeQBrushWHide())
utils.plotLineArrow(painter,
x + width,
y + height * 0.5,
width,
180,
height * 0.25,
arrowleft=s.arrowfront,
arrowright=s.arrowback)
painter.restore()
def dataDraw(self, painter, axes, posn, cliprect):
"""Draw the widget."""
s = self.settings
d = self.document
# ignore non existing datasets
try:
data1 = d.data[s.data1]
data2 = d.data[s.data2]
except KeyError:
return
# require 2d datasets
if data1.dimensions != 2 or data2.dimensions != 2:
return
# get base length (ensure > 0)
baselength = max(s.get('baselength').convert(painter), 1e-6)
# try to be nice if the datasets don't match
data1st, data2nd = data1.data, data2.data
xw = min(data1st.shape[1], data2nd.shape[1])
yw = min(data1st.shape[0], data2nd.shape[0])
# construct indices into datasets
yvals, xvals = N.mgrid[0:yw, 0:xw]
# convert using 1st dataset to axes values
xdsvals, ydsvals = data1.indexToPoint(xvals.ravel(), yvals.ravel())
# convert using axes to plotter values
xplotter = axes[0].dataToPlotterCoords(posn, xdsvals)
yplotter = axes[1].dataToPlotterCoords(posn, ydsvals)
pen = s.Line.makeQPenWHide(painter)
painter.setPen(pen)
if s.mode == 'cartesian':
dx = (data1st[:yw, :xw] * baselength).ravel()
dy = (data2nd[:yw, :xw] * baselength).ravel()
elif s.mode == 'polar':
r = data1st[:yw, :xw].ravel() * baselength
theta = data2nd[:yw, :xw].ravel()
dx = r * N.cos(theta)
dy = r * N.sin(theta)
x1, x2 = xplotter-dx, xplotter+dx
y1, y2 = yplotter+dy, yplotter-dy
if s.arrowfront == 'none' and s.arrowback == 'none':
utils.plotLinesToPainter(painter, x1, y1, x2, y2,
cliprect)
else:
arrowsize = s.get('arrowsize').convert(painter)
painter.setBrush( s.get('Fill').makeQBrushWHide() )
# this is backward - have to convert from dx, dy to angle, length
angles = 180 - N.arctan2(dy, dx) * (180./N.pi)
lengths = N.sqrt(dx**2+dy**2) * 2
# scale arrow heads by arrow length if requested
if s.scalearrow:
arrowsizes = (arrowsize/baselength/2) * lengths
else:
arrowsizes = N.zeros(lengths.shape) + arrowsize
for x, y, l, a, asize in itertools.izip(x2, y2, lengths, angles,
arrowsizes):
if l != 0.:
utils.plotLineArrow(painter, x, y, l, a, asize,
arrowleft=s.arrowfront,
arrowright=s.arrowback)
def draw(self, posn, phelper, outerbounds = None):
"""Plot the key on a plotter."""
s = self.settings
d = self.document
if s.hide:
return
# if a dataset is used, we can't use control items
isnotdataset = ( not s.get('xPos').isDataset(d) and
not s.get('yPos').isDataset(d) )
if s.mode == 'length-angle':
isnotdataset = ( isnotdataset and
not s.get('length').isDataset(d) and
not s.get('angle').isDataset(d) )
else:
isnotdataset = ( isnotdataset and
not s.get('xPos2').isDataset(d) and
not s.get('yPos2').isDataset(d) )
# now do the drawing
clip = None
if s.clip:
clip = qt4.QRectF( qt4.QPointF(posn[0], posn[1]),
qt4.QPointF(posn[2], posn[3]) )
painter = phelper.painter(self, posn, clip=clip)
# adjustable positions for the lines
arrowsize = s.get('arrowSize').convert(painter)
# drawing settings for line
if not s.Line.hide:
painter.setPen( s.get('Line').makeQPen(painter) )
else:
painter.setPen( qt4.QPen(qt4.Qt.NoPen) )
# settings for fill
if not s.Fill.hide:
painter.setBrush( s.get('Fill').makeQBrush() )
else:
painter.setBrush( qt4.QBrush() )
# iterate over positions
scaling = posn[2]-posn[0]
if s.mode == 'length-angle':
lines = self._computeLinesLengthAngle(posn, scaling)
else:
lines = self._computeLinesPointToPoint(posn)
controlgraphitems = []
for index, (x, y, l, a) in enumerate(lines):
utils.plotLineArrow(painter, x, y, l, a,
arrowsize=arrowsize,
arrowleft=s.arrowleft,
arrowright=s.arrowright)
if isnotdataset:
cgi = controlgraph.ControlLine(
self, x, y,
x + l*math.cos(a/180.*math.pi),
y + l*math.sin(a/180.*math.pi))
cgi.index = index
cgi.widgetposn = posn
controlgraphitems.append(cgi)
phelper.setControlGraph(self, controlgraphitems)
def draw(self, posn, phelper, outerbounds = None):
"""Plot the key on a plotter."""
s = self.settings
d = self.document
if s.hide:
return
# if a dataset is used, we can't use control items
isnotdataset = ( not s.get('xPos').isDataset(d) and
not s.get('yPos').isDataset(d) )
if s.mode == 'length-angle':
isnotdataset = ( isnotdataset and
not s.get('length').isDataset(d) and
not s.get('angle').isDataset(d) )
else:
isnotdataset = ( isnotdataset and
not s.get('xPos2').isDataset(d) and
not s.get('yPos2').isDataset(d) )
# now do the drawing
clip = None
if s.clip:
clip = qt4.QRectF( qt4.QPointF(posn[0], posn[1]),
qt4.QPointF(posn[2], posn[3]) )
painter = phelper.painter(self, posn, clip=clip)
# adjustable positions for the lines
arrowsize = s.get('arrowSize').convert(painter)
# drawing settings for line
if not s.Line.hide:
painter.setPen( s.get('Line').makeQPen(painter) )
else:
painter.setPen( qt4.QPen(qt4.Qt.NoPen) )
# settings for fill
if not s.Fill.hide:
painter.setBrush( s.get('Fill').makeQBrush() )
else:
painter.setBrush( qt4.QBrush() )
# iterate over positions
scaling = posn[2]-posn[0]
if s.mode == 'length-angle':
lines = self._computeLinesLengthAngle(posn, scaling)
else:
lines = self._computeLinesPointToPoint(posn)
if lines is None:
return
controlgraphitems = []
for index, (x, y, l, a) in enumerate(lines):
utils.plotLineArrow(painter, x, y, l, a,
arrowsize=arrowsize,
arrowleft=s.arrowleft,
arrowright=s.arrowright)
if isnotdataset:
cgi = controlgraph.ControlLine(
self, x, y,
x + l*math.cos(a/180.*math.pi),
y + l*math.sin(a/180.*math.pi))
cgi.index = index
cgi.widgetposn = posn
controlgraphitems.append(cgi)
phelper.setControlGraph(self, controlgraphitems)
def draw(self, posn, phelper, outerbounds = None):
"""Plot the key on a plotter."""
s = self.settings
d = self.document
if s.hide:
return
# get lengths and angles of lines
length = s.get('length').getFloatArray(d)
angle = s.get('angle').getFloatArray(d)
if length is None or angle is None:
return
# translate coordinates from axes or relative values
xpos, ypos = self._getPlotterCoords(posn)
if xpos is None or ypos is None:
# we can't calculate coordinates
return
# if a dataset is used, we can't use control items
isnotdataset = ( not s.get('xPos').isDataset(d) and
not s.get('yPos').isDataset(d) and
not s.get('length').isDataset(d) and
not s.get('angle').isDataset(d) )
# now do the drawing
painter = phelper.painter(self, posn)
# adjustable positions for the lines
controlgraphitems = []
arrowsize = s.get('arrowSize').convert(painter)
# drawing settings for line
if not s.Line.hide:
painter.setPen( s.get('Line').makeQPen(painter) )
else:
painter.setPen( qt4.QPen(qt4.Qt.NoPen) )
# settings for fill
if not s.Fill.hide:
painter.setBrush( s.get('Fill').makeQBrush() )
else:
painter.setBrush( qt4.QBrush() )
# iterate over positions
index = 0
dx, dy = posn[2]-posn[0], posn[3]-posn[1]
for x, y, l, a in itertools.izip(xpos, ypos,
itertools.cycle(length),
itertools.cycle(angle)):
if N.isfinite(x) and N.isfinite(y) and N.isfinite(a):
utils.plotLineArrow(painter, x, y, l*dx, a,
arrowsize=arrowsize,
arrowleft=s.arrowleft,
arrowright=s.arrowright)
if isnotdataset:
cgi = controlgraph.ControlLine(
self, x, y,
x + l*dx*math.cos(a/180.*math.pi),
y + l*dx*math.sin(a/180.*math.pi))
cgi.index = index
cgi.widgetposn = posn
index += 1
controlgraphitems.append(cgi)
phelper.setControlGraph(self, controlgraphitems)
def draw(self, parentposn, phelper, outerbounds=None):
"""Draw the widget."""
posn = plotters.GenericPlotter.draw(self,
parentposn,
phelper,
outerbounds=outerbounds)
x1, y1, x2, y2 = posn
s = self.settings
d = self.document
# hide if hidden!
if s.hide:
return
# get axes widgets
axes = self.parent.getAxes((s.xAxis, s.yAxis))
# return if there's no proper axes
if (None in axes or axes[0].settings.direction != 'horizontal'
or axes[1].settings.direction != 'vertical'):
return
# ignore non existing datasets
try:
data1 = d.data[s.data1]
data2 = d.data[s.data2]
except KeyError:
return
# require 2d datasets
if data1.dimensions != 2 or data2.dimensions != 2:
return
# clip data within bounds of plotter
cliprect = self.clipAxesBounds(axes, posn)
painter = phelper.painter(self, posn, clip=cliprect)
# get base length (ensure > 0)
baselength = max(s.get('baselength').convert(painter), 1e-6)
# try to be nice if the datasets don't match
data1st, data2nd = data1.data, data2.data
xw = min(data1st.shape[1], data2nd.shape[1])
yw = min(data1st.shape[0], data2nd.shape[0])
# construct indices into datasets
yvals, xvals = N.mgrid[0:yw, 0:xw]
# convert using 1st dataset to axes values
xdsvals, ydsvals = data1.indexToPoint(xvals.ravel(), yvals.ravel())
# convert using axes to plotter values
xplotter = axes[0].dataToPlotterCoords(posn, xdsvals)
yplotter = axes[1].dataToPlotterCoords(posn, ydsvals)
pen = s.Line.makeQPenWHide(painter)
painter.setPen(pen)
if s.mode == 'cartesian':
dx = (data1st[:yw, :xw] * baselength).ravel()
dy = (data2nd[:yw, :xw] * baselength).ravel()
elif s.mode == 'polar':
r = data1st[:yw, :xw].ravel() * baselength
theta = data2nd[:yw, :xw].ravel()
dx = r * N.cos(theta)
dy = r * N.sin(theta)
x1, x2 = xplotter - dx, xplotter + dx
y1, y2 = yplotter + dy, yplotter - dy
if s.arrowfront == 'none' and s.arrowback == 'none':
utils.plotLinesToPainter(painter, x1, y1, x2, y2, cliprect)
else:
arrowsize = s.get('arrowsize').convert(painter)
painter.setBrush(s.get('Fill').makeQBrushWHide())
# this is backward - have to convert from dx, dy to angle, length
angles = 180 - N.arctan2(dy, dx) * (180. / N.pi)
lengths = N.sqrt(dx**2 + dy**2) * 2
# scale arrow heads by arrow length if requested
if s.scalearrow:
arrowsizes = (arrowsize / baselength / 2) * lengths
else:
arrowsizes = N.zeros(lengths.shape) + arrowsize
for x, y, l, a, asize in itertools.izip(x2, y2, lengths, angles,
arrowsizes):
if l != 0.:
utils.plotLineArrow(painter,
x,
y,
l,
a,
asize,
arrowleft=s.arrowfront,
arrowright=s.arrowback)
def draw(self, parentposn, phelper, outerbounds = None):
"""Draw the widget."""
posn = plotters.GenericPlotter.draw(self, parentposn, phelper,
outerbounds = outerbounds)
x1, y1, x2, y2 = posn
s = self.settings
d = self.document
# hide if hidden!
if s.hide:
return
# get axes widgets
axes = self.parent.getAxes( (s.xAxis, s.yAxis) )
# return if there's no proper axes
if ( None in axes or
axes[0].settings.direction != 'horizontal' or
axes[1].settings.direction != 'vertical' ):
return
# ignore non existing datasets
try:
data1 = d.data[s.data1]
data2 = d.data[s.data2]
except KeyError:
return
# require 2d datasets
if data1.dimensions != 2 or data2.dimensions != 2:
return
# clip data within bounds of plotter
cliprect = self.clipAxesBounds(axes, posn)
painter = phelper.painter(self, posn, clip=cliprect)
baselength = s.get('baselength').convert(painter)
# try to be nice if the datasets don't match
data1st, data2nd = data1.data, data2.data
xw = min(data1st.shape[1], data2nd.shape[1])
yw = min(data1st.shape[0], data2nd.shape[0])
# construct indices into datasets
yvals, xvals = N.mgrid[0:yw, 0:xw]
# convert using 1st dataset to axes values
xdsvals, ydsvals = data1.indexToPoint(xvals.ravel(), yvals.ravel())
# convert using axes to plotter values
xplotter = axes[0].dataToPlotterCoords(posn, xdsvals)
yplotter = axes[1].dataToPlotterCoords(posn, ydsvals)
pen = s.Line.makeQPenWHide(painter)
painter.setPen(pen)
if s.mode == 'cartesian':
dx = (data1st[:yw, :xw] * baselength).ravel()
dy = (data2nd[:yw, :xw] * baselength).ravel()
elif s.mode == 'polar':
r = data1st[:yw, :xw].ravel() * baselength
theta = data2nd[:yw, :xw].ravel()
dx = r * N.cos(theta)
dy = r * N.sin(theta)
x1, x2 = xplotter-dx, xplotter+dx
y1, y2 = yplotter+dy, yplotter-dy
if s.arrowfront == 'none' and s.arrowback == 'none':
utils.plotLinesToPainter(painter, x1, y1, x2, y2,
cliprect)
else:
arrowsize = s.get('arrowsize').convert(painter)
painter.setBrush( s.get('Fill').makeQBrushWHide() )
# this is backward - have to convert from dx, dy to angle, length
angles = 180 - N.arctan2(dy, dx) * (180./N.pi)
lengths = N.sqrt(dx**2+dy**2) * 2
# scale arrow heads by arrow length if requested
if s.scalearrow:
arrowsizes = (arrowsize/baselength/2) * lengths
else:
arrowsizes = N.zeros(lengths.shape) + arrowsize
for x, y, l, a, asize in itertools.izip(x2, y2, lengths, angles,
arrowsizes):
utils.plotLineArrow(painter, x, y, l, a, asize,
arrowleft=s.arrowfront,
arrowright=s.arrowback)
