Added initial live graph

src/python/graph.py

+import matplotlib
+from matplotlib.pyplot import *
+import pyenergy
+from time import sleep
+
+em = pyenergy.EnergyMonitor("EE00")
+em.connect()
+
+em.enableMeasurementPoint(1)
+em.start(1)
+
+xdata = []
+ydata = []
+ydata2 = []
+ydata3 = []
+
+fig = figure()
+ion()
+show()
+
+gain = 50
+resistor = 1
+vref = 3
+
+while True:
+    m = em.getInstantaneous(1)
+    # m2 = em.getInstantaneous(2)
+    # m3 = em.getInstantaneous(3)
+
+    print m, m3
+
+    print m[1] * float(vref)**2 / gain / resistor / 4096**2 * 2
+    ydata.append(m[1] * float(vref)**2 / gain / resistor / 4096**2 * 2*1000)
+    # ydata2.append(m2[1] * float(vref)**2 / gain / resistor / 4096**2 * 2)
+    # ydata3.append(m3[1] * float(vref)**2 / gain / resistor / 4096**2 * 2*1000)
+    xdata.append(m[2] / 168000000. * 2)
+    # em.debugInstantaneous(m)
+
+    fig.clf()
+    ax = fig.add_subplot(111)
+    ax.plot(xdata, ydata, '-')
+    # ax.plot(xdata, ydata2, '-')
+    # ax.plot(xdata, ydata3, '-')
+
+    # p.set_ydata(ydata)
+    # p.set_xdata(xdata)
+    # ax.set_ylim([min(min(ydata),min(ydata3))*0.9, max(max(ydata),max(ydata3))*1.1])
+    ax.set_ylim([min(ydata)*0.9, max(ydata)*1.1])
+    ax.set_xlim([min(xdata),max(xdata)])
+    ax.set_xlabel("Time")
+    ax.set_ylabel("Current (mA)")
+
+    fig.show()
+    draw()
+
+    sleep(0.01)
+
+    if len(ydata) > 100:
+        ydata = ydata[-100:]
+        # ydata2 = ydata2[-100:]
+        # ydata3 = ydata3[-100:]
+        # ydata2 = ydata3[-100:]
+        xdata = xdata[-100:]