Re: manipulate n insert field values

#Z value calculation
#................................

#step1: converting lat and long to int

latitude int = (latitude + 90) × 10^6
longitude int = (latitude + 180) × 10^6

#note 10^6 = 1000000

We compute the Morton value for a spatial point P (x, y)
by interleaving the bits of x and y. For example, when x =
3(011 ) and y = 4(100), the Morton value for P is
100101 = 37

#step2: convert int (base 10) to binary digits (base 2)
..........?

#step3: interleave both values bits and compute z value
#take first bit from y cordinate  (longitude) : 1
#take first bit from x cordinate  (lat) : 0
#take 2nd bit from y cordinate  (longitude) :0
#take 2nd bit from x cordinate  (lat) : 1
#take 3rd bit from y cordinate  (longitude) : 0
#take 3rd bit from x cordinate  (lat) : 1

therefore z binary value is 100101

and z value is 37

#this is the technique used to convert spatial 2D indexing to 1D to improve efficiency.

I do not know the python syntax. Kindly help.

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