output of interp2 is single - why?
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when I use the following code, the output zcovis is a single rather than a double.
if true
surf(xb,yb,zb)
[xcovis,ycovis]=ginput(1);
zcovis = interp2(xb,yb,zb,xcovis,ycovis);
end
xb,yb,zb are imported data but xb,yb should be consistent with meshgrid format (zb is height above surface not a third coordinate)
why is zcovis a single? I'd like to use it to place a text comment on a another figure:
if true
text(0.1,zcovis+4.2,'COVIS')
end
2 Comments
Answers (1)
ANKUR KUMAR
on 9 Aug 2018
It's because of your xb,yb,zb, xcovis and ycovis are single. If you want your output in double, just use double before using interp2.
zcovis = double( interp2(xb,yb,zb,xcovis,ycovis));
3 Comments
Walter Roberson
on 10 Aug 2018
zcovis = interp2(xb, yb, double(zb), xcovis, ycovis);
ANKUR KUMAR
on 10 Aug 2018
Edited: Stephen23
on 10 Aug 2018
Make all inputs having the same class. This works well, as suggested by Walter Roberson.
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