Inital comit.

Basic transfer function and tank impedance plotting

pySmithPlot/testbenches/smith_short_test.py

@@ -0,0 +1,37 @@
+#!/usr/bin/env python3
+
+import sys
+
+import numpy as np
+from matplotlib import rcParams, pyplot as pp
+
+rcParams.update({"legend.numpoints": 3})
+
+sys.path.append("..")
+from smithplot import SmithAxes
+
+# sample data
+data = np.loadtxt("data/s11.csv", delimiter=",", skiprows=1)[::100]
+val1 = data[:, 1] + data[:, 2] * 1j
+
+data = np.loadtxt("data/s22.csv", delimiter=",", skiprows=1)[::100]
+val2 = data[:, 1] + data[:, 2] * 1j
+
+# plot data
+pp.figure(figsize=(6, 6))
+
+ax = pp.subplot(1, 1, 1, projection='smith')
+pp.plot([10, 100], markevery=1)
+
+
+pp.plot(200 + 100j, datatype=SmithAxes.Z_PARAMETER)
+pp.plot(50 * val1, label="default", datatype=SmithAxes.Z_PARAMETER)
+pp.plot(50 * val2, markevery=1, label="interpolate=3", interpolate=3, datatype=SmithAxes.Z_PARAMETER)
+pp.plot(val1, markevery=1, label="equipoints=22", equipoints=22, datatype=SmithAxes.S_PARAMETER)
+pp.plot(val2, markevery=3, label="equipoints=22, \nmarkevery=3", equipoints=22, datatype=SmithAxes.S_PARAMETER)
+
+leg = pp.legend(loc="lower right", fontsize=12)
+pp.title("Matplotlib Smith Chart Projection")
+
+pp.savefig("export.pdf", format="pdf", bbox_inches="tight")
+pp.show()