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interpolate 3D matrix [message #90410]

Mon, 02 March 2015 06:04

g.nacarts
Messages: 148
Registered: November 2013

Senior Member

Hi

I have two 3D arrays Ax and Ay with the following dimensions[100,4,4]=[time,x,y].

I wanted to interpolate my matrices Ax and Ay and make them to have dimensions of [100,8,8]. A part of my code is shown below:

size = 8
Ax_2D_INT = fltarr(100,size,size)
Ay_2D_INT = fltarr(100,size,size)

for i=0, 99 do begin
Ax_2D = REFORM(Ax[i,*,*]) ;change 3D to 2D
Ay_2D = REFORM(Ay[i,*,*])

dimensions_I_need = size(Dindgen(size,size),/Dimensions)
dimensions_I_have = size(Ax_2D,/Dimensions)

X = cgScaleVector(Dindgen(dimensions_I_need[0]), 0, dimensions_I_have[0]-1)

Y = cgScaleVector(Dindgen(dimensions_I_need[1]), 0, dimensions_I_have[1]-1)

Ax_2D_INT = INTERPOLATE(Ax_2D,X, Y, /GRID)
Ay_2D_INT = INTERPOLATE(Ay_2D,X, Y, /GRID)
endfor

I got the following error but I couldn't figure out why.
Attempt to subscript DIMENSIONS_I_HAVE with <INT ( 1)> is out of range.

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[Message index]

		interpolate 3D matrix By: g.nacarts on Mon, 02 March 2015 06:04
		Re: interpolate 3D matrix By: Helder Marchetto on Mon, 02 March 2015 06:38
		Re: interpolate 3D matrix By: g.nacarts on Mon, 02 March 2015 07:51

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