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docs/notebooks/RedClumpGaiaAllWISE/rcdemo/autil.py

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+
+exec(open("./rcdemo/packages_to_import.py").read()) 
+
+
+
+def xyz2lbr(x,y,z):
+#    dtor=np.pi/180.0
+    rc2=x*x+y*y
+    return [np.degrees(np.arctan2(y,x)),np.degrees(np.arctan(z/np.sqrt(rc2))),np.sqrt(rc2+z*z)]
+
+
+
+
+def dist2dmod(d):
+    """
+    Arguments:
+        d (float)-  distance in kpc
+    """
+    return 5.0*np.log10(100.0*d)
+
+def dmod2dist(dmod):
+    """
+    Arguments:
+        dmod (float)-  distance modulus
+    """
+    return np.power(10.0,dmod/5.0-2.0)
+