Obj to convert integer to string and add decimal?

T Chap · 2009-12-20 02:27

Is there an object that will convert a decimal to a string for LCD purposes as shown. There always needs to be 4 decimals even if 0's, but the integer doesn't contain any decimals. There are no resources for cogs for floating point. I was looking at the Numbers obj but haven't figured out it ToStr is the right thing to accomplish this.

714875 to "71.4875"

Thanks for any obj suggestions.

EDIT:

I worked out a simple trick to destruct the integer and construct the string:

int := (int * 10000) + (deci * 625)
    int := ((int * 9)  / 5)  + 320_000
    'go(1,0)
    'ser.decf(3, int, 6)
    'ser.str(3, string("F"))
    go(1,0)
    F := int/10000         ' extract the two digits to the left of the decimal
    ser.dec(3, F)               'display the two left digits
    ser.str(3, string("."))      'display the decimal point
    int := int - (F*10000)        'subtract the two left digits from the total and display the 4 digits to the right
    ser.decf(3, int, 4)

Post Edited (Todd Chapman) : 12/20/2009 3:02:12 AM GMT

Mike Green · 2009-12-20 05:28

Your trick certainly would work.

You could also modify the decimal output routine in the Numbers object or any other object with a similar routine. These all build the number from left to right. You can simply check in this loop for a particular number of decimal places and output a decimal point. There's a variable that indicates whether a significant digit has been seen and you could also force that to true (or whatever) so that the routine zero fills from then on.

Obj to convert integer to string and add decimal?

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