def add_hline_to_plots(self):
"""Add horizontal lines to intersect vertical line"""
for hLine in self.hLines:
hLine.remove()
self.hLines = []
self.lineToHLineDict = dict()
for label in self.hLinesLabels:
label.remove()
self.hLinesLabels = []
for plot in self.plots:
xVals, yVals, line, label = plot
# Get the y-value of self.verticalLinePos
index = Utilities.get_insertion_point_left(xVals, self.verticalLinePos)
if index == len(xVals) or index == 0:
continue
x1, x, x2 = xVals[index - 1], self.verticalLinePos, xVals[index]
y1, y2 = yVals[index - 1], yVals[index]
# It holds xVals[index-1] < self.verticalLinePos <= xVals[index]
fac = float(x - x2) / (x1 - x2)
y = fac * y1 + (1 - fac) * y2 # this obviously only works if plots are piecewise linear
axes = self.figure.gca()
lowerBound, upperBound = axes.get_xlim()
lineBeginFac = float(x - lowerBound) / (upperBound - lowerBound)
hLine = axes.axhline(y=y, xmin=lineBeginFac, xmax=1, linewidth=self.verticalLineWidth)
hLine.set_color(self.verticalLineColor)
self.hLines.append(hLine)
hLineText = axes.text(1.02, y, "%.2f" % y, va='center', ha="left", bbox=dict(facecolor="w", alpha=0.5),
transform=axes.get_yaxis_transform())
hLineText.set_fontsize(8)
self.hLinesLabels.append(hLineText)
if not line.get_visible():
hLine.set_visible(False)
hLineText.set_visible(False)
self.lineToHLineDict[line] = (hLine, hLineText)
def get_approx_data(self, t):
"""
Returns approximated queue size and load at time t
:param t: time
:return: z_e(t), d_e(t), where entries can be "N/A"
"""
D = {'Queue size': "N/A", 'Load': "N/A"}
for plot in self.plots:
xVals, yVals, line, label = plot
if label != 'Load' and label != "Queue size":
continue
index = Utilities.get_insertion_point_left(xVals, t)
if index == len(xVals) or index == 0:
continue
else:
x1, x, x2 = xVals[index - 1], t, xVals[index]
y1, y2 = yVals[index - 1], yVals[index]
# It holds: xVals[index-1] < t <= xVals[index]
fac = float(x - x2) / (x1 - x2)
y = fac * y1 + (1 - fac) * y2 # this obviously only works if plots are piecewise linear
D[label] = y
return D['Queue size'], D['Load']