Reversed direction in GMTgrid, v0.15.0

[hydrocoast]

Hi,

I found that functions that create GMT.GMTgrid (e.g. surface) of v0.15.0 show different illustration from those of v0.14.1.

For example, the following codes generate a figure:

using GMT

X = 0:100
Y = 0:50
Z = [sqrt(x^2+y^2) for y in Y, x in X]

G = surface([repeat(X,inner=(51,1)) repeat(Y,outer=(101,1)) vec(Z)], I=1, R="0/100/0/50")

cpt = makecpt(C=:rainbow, D=true, T="0/100")
grdimage(G, J="X10/5", R="0/100/0/50", C=cpt, Q=true, show=true)

Using v0.14.1, the output looks like:

Using v0.15.0, the direction of the vertical axis is reversed:

I think the behavior of v0.14.1 is proper, so I am looking for what part of modification from v0.14.1 to v0.15.0 causes the difference.

The environment is as follows:
OS: Ubuntu 18.04 LTS
Julia version: v1.3.1
GMT version: 6.0.0

Thank you,

[joa-quim]

@hydrocoast Thank you for catching this. It was a bug in the commit that replaced global by const global. Fixed and will tag a 0.16.0 soon.

And, BTW, to quick visualize a grid G you can just do imshow(G)

[hydrocoast]

Thank you for the quick response and update.