Thread: How to calculate length of path data without diagonals?

Hi, i need to calculate some length of path without diagonal. Some examples:

On 12/23/10 10:25 AM, Romain Billoir wrote:
> Hi, i need to calculate some length of path without diagonal. Some
> examples:
> length((5,5),(6,6))) returns 1.41. I need 2: 5,5 to 5,6 + 5,6 to 6,6.
>
> Is that possible?

a path of just two points?   something like   abs(x1-x2) + abs(y1-y2).

On 12/23/2010 1:25 PM, Romain Billoir wrote:
 > Hi, i need to calculate some length of path without diagonal. Some
examples:
 > length((5,5),(6,6))) returns 1.41. I need 2: 5,5 to 5,6 + 5,6 to 6,6.
 >
 > Is that possible?


You could write a function to get the Manhattan distance between two
points, it is the sum of the absolute values of subtracting each part of
the coordinate. e.g. ABS(x2 - x1) + ABS(y2 - y1)


-- Stephen

On 2010-12-23, Romain Billoir <billoirr@gmail.com> wrote:
> --0015175ccf48e6186a049817fc59
> Content-Type: text/plain; charset=ISO-8859-1
>
> Hi, i need to calculate some length of path without diagonal. Some examples:
> length((5,5),(6,6))) returns 1.41. I need 2: 5,5 to 5,6 + 5,6 to 6,6.
>
> Is that possible?

It's called "Manhattan distance" look it up, the arithmentic is easy.

--
⚂⚃ 100% natural