Cell class: Utility functions

[demisjohn]

Add some utility functions, such as:

1. convert_cellCR_to_WaferXY( cellCR=[C,R], shiftXY=[X,Y] ) - convert Col/Row and Shift into X/Y Wafer Coordinates.
2. Check_Valid_CellCR( cellCR=[C,R] ) - return True|False if the given CellCR is on-wafer.
3. Get_Valid_CellCR() - return all valid Col/Rows that fit on the wafer.

[demisjohn]

Cell2Wafer() and Wafer2Cell() added to Cell class in c1f1003 .
Tested that they work, but need testing against ASML GUI that they are inclusive/exclusive of the correct Cell edges.

[demisjohn]

wafer2cell code from Miguel Daal:

Hi Demis,

I think this code to convert from wafer coordinates to cell coordinates works, but Ive only tested it on my marks which are clustered about East and West.

def wafer2cellXY(waferXY):
ms = np.array(MyJob.Cell.MatrixShift)
CS = 0.5*np.array(MyJob.Cell.CellSize)
pw = np.array(waferXY)

pm = pw-(ms+CS)
CR, r = np.divmod(np.abs(pm),2*CS)
CR = CR*np.sign(pm)+np.array([1,0]) if np.sign(pm)[0] == 1 else CR*np.sign(pm)
pc = (r-CS)*np.sign(pm)
return CR, pc

Sincerely
Miguel

[fyodr]

I modified this on my fork (pull request imminent), and I have been using it to check if cells have alignment marks in them. Everything has worked so far, but I have not done very thorough testing.