geko

Hello, is there any object which runs under 64bit, which allows to query cell coordinates (x/y) from a jitter matrix for a given target value. I have a matrix filled with floats and want to find the position of the highest value.

Hello, is there any object which runs under 64bit, which allows to query cell coordinates (x/y) from a jitter matrix for a given target value.  I have a matrix filled with floats and want to find the position of the highest value.  

query-cell-coordinates-of-a-target-value-in-a-jitter-matrix

It's not a single object - it's a message sequence to a jit.matrix object.

Hello Max Gerdener, thanks for your reply. my question was not for getting the value as it is nice documented in the matrix reference but if I have this value already how to know at which column and row it is in the matrix, means the x, y cell coordinates.

there is no standard jitter object for this, you need to look at 3rd party externals

take a look at the objects in Wesley Smith's site:

http://www.mat.ucsb.edu/~whsmith/xray.html

combine a [jit.op @op == @val (your value)] object

-> this will put your cell to 1 if the value in your matrix are equals to your known value,

then give it to a [jit.iter] to retrieve coordinate

combine a [jit.op @op == @val (your value)] object
-> this will put your cell to 1 if the value in your matrix are equals to your known value,

then give it to a [jit.iter] to retrieve coordinate


@floating point: thanks! about xray: I have to try how it works under win7 64bit. there was an object xray.jit.maxvalue which seems to be no longer supported and which does exactly this kind of cell-index-search.

Sorry for the necroposting. I just encountered the same issue and decided to share the solution.

The object for value-based cell index search in 

Sorry for the necroposting. I just encountered the same issue and decided to share the solution.
The object for value-based cell index search in xraypackage is xray.jit.cellvalue. Example:


query cell coordinates of a target value in a jitter matrix