Added script to rotate a pnp file

.scripts/rot_pick.py

@@ -0,0 +1,69 @@
+import csv
+import sys
+import math
+import ast
+
+if len(sys.argv) != 4:
+    print("Invalid num args:", len(sys.argv),", should be 4")
+    exit(1)
+
+file = sys.argv[1]
+rot_deg = float(sys.argv[2])
+dims = [float(i) for i in ast.literal_eval(sys.argv[3])]
+
+corrected_rows = []
+with open(file,'r', newline='') as csvfile:
+    spamreader = csv.reader(csvfile, delimiter=',',
+                            quotechar='|', quoting=csv.QUOTE_MINIMAL)
+    # Read until the header row
+    for row in spamreader:
+        corrected_rows.append(row)
+        # Header row
+        # Designator,Comment,Footprint,Mid X(mm),Mid Y(mm) ,Rotation,Head ,FeederNo,Mount Speed(%),Pick Height(mm),Place Height(mm),Mode,Skip
+        if "Designator" in row:
+            break;
+
+    # Now the remaining rows should all be placement items
+    # e.g
+    # U2,AH1806-W,SC-59,220.50,11.10,-0.00,0,53,50,0.0,0.0,1,0
+    for row in spamreader:
+        # Skip empty rows
+        if len(row) < 10:
+            continue
+        # To rotate we need to change cols: 3,4,5 (x,y,rot)
+        # Easisest way is to conver to polar
+        x = float(row[3])
+        y = float(row[4])
+        print("Before: ", x,y)
+        # rot = float(row[5])
+
+        r = (x**2 + y**2)**0.5
+        theta = math.atan(y/x)
+
+        # Add the rot
+        rot_rad = math.pi * rot_deg/180
+        theta += rot_rad 
+
+        # Convert back to cartesian
+        x = r * math.cos(theta)
+        y = r * math.sin(theta)
+
+        # Shift x so that the origin can be maintained
+        x += math.sin(rot_rad) * dims[1]
+
+        print("After: ", x,y)
+
+        # Add the rotation to the component rotation
+        comp_rot = float(row[5]) + rot_deg
+
+        row[3] = str(x)
+        row[4] = str(y)
+        row[5] = str(comp_rot)
+
+        corrected_rows.append(row)
+
+with open(file.split('.csv')[0] + '_rot' + '.csv','w', newline='') as csvfile:
+    spamwriter = csv.writer(csvfile, delimiter=',',
+                            quotechar='|', quoting=csv.QUOTE_MINIMAL)
+    for row in corrected_rows:
+        spamwriter.writerow(row)