Added features increasing user friendliness of the software

Data/Calibration.py

@@ -0,0 +1,81 @@
+class CalCurve():
+
+    def __init__(self):
+        self.name = "None"
+        self.formula = "y=x"
+
+    def __call__(self, x):
+        return x
+
+    def __str__(self):
+        return self.name
+
+
+class AlSi7Mg(CalCurve):
+
+    def __init__(self):
+        self.name = "AlSi7Mg"
+        self.formula = "N/A"
+
+    def __call__(self, x):
+        return x
+
+
+class Al6061(CalCurve):
+
+    def __init__(self):
+        self.name = "Al6061"
+        self.formula = "T=(V+84.66)/1.45"
+
+    def __call__(self, x):
+        return (x + 84.661) / 1.4516
+
+
+class _15_5PH(CalCurve):
+
+    def __init__(self):
+        self.name = "15-5PH Stainless Steel"
+        self.formula = "N/A"
+
+    def __call__(self, x):
+        return x
+
+
+class H13(CalCurve):
+
+    def __init__(self):
+        self.name = "H13 Tool Steel"
+        self.formula = "N/A"
+
+    def __call__(self, x):
+        return x
+
+
+class Inconel625(CalCurve):
+
+    def __init__(self):
+        self.name = "Inconel 625"
+        self.formula = "N/A"
+
+    def __call__(self, x):
+        return x
+
+
+class Inconel718(CalCurve):
+
+    def __init__(self):
+        self.name = "Inconel 718"
+        self.formula = "N/A"
+
+    def __call__(self, x):
+        return x
+
+
+class Custom(CalCurve):
+
+    def __init__(self):
+        self.name = "Custom"
+        self.formula = "y=mx+c"
+
+    def __call__(self, x):
+        return x