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y and x axis reversed about jumper HOT 4 OPEN

yonaba avatar yonaba commented on July 17, 2024
y and x axis reversed

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Comments (4)

Bobbyjoness avatar Bobbyjoness commented on July 17, 2024

In cs universally its y followed by x. I do not know why, but his code his correct.

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nekromoff avatar nekromoff commented on July 17, 2024

The code is not correct or incorrect.
However, the standards are X-Y, it's basic Cartesian system (even, if Y actually starts based on old CRTs from the top, the order is X followed by Y).
https://en.wikipedia.org/wiki/Cartesian_coordinate_system

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nekromoff avatar nekromoff commented on July 17, 2024

Also, it should be documented, if it's not using the standard X-Y order. It is not.

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Bobbyjoness avatar Bobbyjoness commented on July 17, 2024

For points yes it is x,y. but for 2d arrays in code visually its obvious that the first number specifies the row i.e y. The second number specifies the column i.e x. Y-X is the standard order in CS for grids and 2d arrays because in reality it is Row-Column which is what matches up with the way the code looks. I am not saying points in general are specified as Y-X because they are not. but when it comes to storage it is stored as Y-X.
'''
{
{1,1,1},
{1,1,1},
{1,1,1},
}
'''

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