Path to data files

[James Howe]

How does the shared library (dll/so) find the data files?

Can the path be passed in somehow, or is it hard-coded to either the working directory or the location of the library file?

[Paul Michell]

The data files are assumed to be in the same folder as the library binary. There isn’t a mechanism to customise this.

[James Howe]

Thanks Paul, that’s what I guessed. For Windows that’s not too much of a burden, but it makes a nice linux package a bit annoying to construct.

How hard would it be to add a feature so the path could be provided e.g. via environment variable?

[Paul Michell]

Line 121 of OSGeoid.pas defines a global variable with the path to the data folder. The code in the Pascal Initialization section (lines 393-424) assigns this during library load and this code would need modifying to the desired behaviour. How hard this would be would depend on the complexity of the additions?