I am getting following error in code: Undefined function 'ctwoD' for input arguments of type 'double'.

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%coordinates of perspective camera projections
xc = ctwoD(5,10);
yc = ctwoD(10,5);
%coordinates of weak camera perspective
xw = ctwoD(5,10);
yw = ctwoD(10,5);
%plot the transformed points from 2D to 3D
plot (xc,yc, '-5',xw, yw,'-*b',markersize,10);
hleg1 = legend ('x,y 5,10');
xlabel ('5');
title ('x,y 5,10');
I am getting following error:
Undefined function 'ctwoD' for input arguments of type 'double'.
Error in CameraModel (line 3)
xc = ctwoD(5,10);
Please help with how to write correct code.
Ivy on 1 Aug 2021
That;s where my struggle lays.... I am very new at MatLab. These codes were provided to me as a guidline..... I am trying to compute a code for a simple object with four 3D co-ordinates (-1, 0, 2), (1, 0, 5), (0, 1, 4), (0, -1, 3). to project these points onto an image using two methods, perspective, and weak perspective projection.

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Accepted Answer

Sulaymon Eshkabilov
Sulaymon Eshkabilov on 1 Aug 2021
The fcn ctwoD() in your code is not a MATLAB fcn unless you've created it. If you've created it, make sure it is residing in your MATLAB accessible directory.
You can verify it with:
>> which ctwoD

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