So I have 4 variables that show coordinates x and y/
e.g:
first_co = [0,0]
second_co = [100,200]
third_co = [300,400]
fourth_co = [800,1000]
When i tried to just declare a numpy array as
box = np.array([first_co],[second_co],[third_co],[fourth_co])
I got a value error, how do I declare a numpy array with 4 variables?
You need to feed a (nested) list of lists to np.array:
box = np.array([first_co, second_co, third_co, fourth_co])
box.dtype # dtype('int32')
Result:
array([[ 0, 0],
[ 100, 200],
[ 300, 400],
[ 800, 1000]])
The docs make this clear:
object : array_like
An array, any object exposing the array interface, an object whose
__array__method returns an array, or any (nested) sequence.
Maybe this is what you want:
box = np.array([first_co,second_co,third_co,fourth_co])
