[stevexu]

There is a problem of selection GCP in my test scenario. Problem lies the GCP can not be picked up by “date cursor” or ginput command in the reflection map. If use the “data cursor”, an random position is located. And ginput got no response.
Help me out, badly for the next step.

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[stevexu]

It turns out only on the not zoomed figure the cursor can be positioned. When zoom in, there will be an random deviation of the capture pixel position and the cursor position. The problems goes:

[periz]

if you have problem with the data cursor tool, it’s a matlab problem.
which version of matlab do you have? which operating system?

[stevexu]

Matlab 2014b is the version, Ubuntu Linux 64-bit is the OS. I tried to skip this step with automatically generated GCPs, but got additional troubles.

[periz]

As you can see here http://www.sarproz.com/pcodes-instructions/
Matlab 2014b and later are not yet supported and the reason is exactly a big change that Mathworks implemented in the graphic management.

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