def draw_vrot(self, qp):
qp.begin(self.plotBitMap)
qp.setRenderHint(qp.Antialiasing)
qp.setRenderHint(qp.TextAntialiasing)
vrot_pix = self.vrot_to_pix(self.vrot)
# plot the white dashed line
pen = QtGui.QPen(self.fg_color, 1.5, QtCore.Qt.DotLine)
qp.setPen(pen)
qp.drawLine(vrot_pix, self.prob_to_pix(0), vrot_pix, self.prob_to_pix(70))
# Draw the probabilties.
color = QtGui.QColor(self.EF01_color)
pen = QtGui.QPen(color, 1, QtCore.Qt.SolidLine)
qp.setPen(pen)
rect = QtCore.QRectF(self.vrot_to_pix(self.vrot-7), self.prob_to_pix(self.probef01), 4, 7)
qp.drawText(rect, QtCore.Qt.TextDontClip | QtCore.Qt.AlignLeft, utils.INT2STR(self.probef01))
color = QtGui.QColor(self.EF23_color)
pen = QtGui.QPen(color, 1, QtCore.Qt.SolidLine)
qp.setPen(pen)
rect = QtCore.QRectF(self.vrot_to_pix(self.vrot), self.prob_to_pix(self.probef23), 4, 7)
qp.drawText(rect, QtCore.Qt.TextDontClip | QtCore.Qt.AlignLeft, utils.INT2STR(self.probef23))
color = QtGui.QColor(self.EF45_color)
pen = QtGui.QPen(color, 1, QtCore.Qt.SolidLine)
qp.setPen(pen)
rect = QtCore.QRectF(self.vrot_to_pix(self.vrot), self.prob_to_pix(self.probef45), 4, 7)
qp.drawText(rect, QtCore.Qt.TextDontClip | QtCore.Qt.AlignLeft, utils.INT2STR(self.probef45))
qp.end()
def draw_thetae(self, t, qp):
'''
Draw background Theta-E ticks.
Parameters
----------
t: Theta-E in degrees Kelvin
qp: QtGui.QPainter object
'''
## set a new pen with a white color, thickness one, solid line
pen = QtGui.QPen(self.fg_color, 1, QtCore.Qt.SolidLine)
qp.setPen(pen)
qp.setFont(self.label_font)
## convert theta-E to pixel values
x1 = self.theta_to_pix(t)
## length of tick to draw
offset = 5
## draw the tick and label it with a value
qp.drawLine(x1, 0, x1, 0 + offset)
qp.drawLine(x1, self.bry + self.tpad - offset, x1,
self.bry + self.rpad)
qp.drawText(x1 - 15, self.bry - 22, 30,
20, QtCore.Qt.AlignTop | QtCore.Qt.AlignCenter,
utils.INT2STR(t))
def draw_isobar(self, p, qp):
'''
Draw background isobar ticks.
Parameters
----------
p: pressure in hPa or mb
qp: QtGui.QPainter object
'''
## set a new pen with a white color and solid line of thickness 1
pen = QtGui.QPen(self.fg_color, 1, QtCore.Qt.SolidLine)
qp.setPen(pen)
qp.setFont(self.label_font)
## convert the pressure to pixel coordinates
y1 = self.pres_to_pix(p)
## length of line to draw
offset = 5
## draw the isobar line and text
qp.drawLine(self.lpad, y1, self.lpad + offset, y1)
qp.drawLine(self.brx + self.rpad - offset, y1, self.brx + self.rpad,
y1)
qp.drawText(5, y1 - 20, 30, 40,
QtCore.Qt.AlignVCenter | QtCore.Qt.AlignLeft,
utils.INT2STR(p))
def draw_height(self, h, qp):
'''
Draw background height ticks in km.
Parameters
----------
h: height in km
qp: QtGui.QPainter object
'''
## initialize a pen with color white, thickness 1, solid line
pen = QtGui.QPen(self.fg_color, 1, QtCore.Qt.SolidLine)
qp.setPen(pen)
qp.setFont(self.label_font)
## convert the height value to pixel coordinates
y1 = self.hgt_to_pix(h)
## length of tick to be drawn
offset = 5
## draw the tick and then label the tick with the value
qp.drawLine(self.lpad, y1, self.lpad + offset, y1)
qp.drawLine(self.brx + self.rpad - offset, y1, self.brx + self.rpad,
y1)
qp.drawText(0, y1 - 20, 20, 40,
QtCore.Qt.AlignVCenter | QtCore.Qt.AlignRight,
utils.INT2STR(h))
#### Adding a Parcel Trace
sfcpcl = params.parcelx(prof, flag=1) # Surface Parcel
#fcstpcl = params.parcelx( prof, flag=2 ) # Forecast Parcel
mupcl = params.parcelx(prof, flag=3) # Most-Unstable Parcel
mlpcl = params.parcelx(prof, flag=4) # 100 mb Mean Layer Parcel
# Set the parcel trace to be plotted as the Most-Unstable parcel.
pcl = mupcl
# Temperature, dewpoint, virtual temperature, wetbulb, parcel profiles
temperature_trace, = skew.plot(prof.pres, prof.tmpc, 'r',
linewidth=2) # temperature profile
# annotate temperature in F at bottom of T profile
temperatureF = skew.ax.text(prof.tmpc[0],
prof.pres[0] + 10,
utils.INT2STR(thermo.ctof(prof.tmpc[0])),
verticalalignment='top',
horizontalalignment='center',
size=7,
color=temperature_trace.get_color())
vtemp_trace, = skew.plot(prof.pres, prof.vtmp, 'r',
linewidth=0.5) # Virtual temperature profile
wetbulb_trace, = skew.plot(prof.pres, prof.wetbulb,
'c-') # wetbulb profile
dewpoint_trace, = skew.plot(prof.pres, prof.dwpc, 'g',
linewidth=2) # dewpoint profile
# annotate dewpoint in F at bottom of dewpoint profile
dewpointF = skew.ax.text(prof.dwpc[0],
prof.pres[0] + 10,
utils.INT2STR(thermo.ctof(prof.dwpc[0])),
verticalalignment='top',