importing 2D geometry from binary image

[lollipopcorn]

Dear developer,

I am wondering what is the appropriate way of importing a geometry from a binary png image (e.g. 0 for bulk liquid and 1 for wall) ?
Two potential options maybe (1) firstly convert image into STL, then import geometry from STLreader. (2) write a loop, individually assign each pixel of the image to a material number during each iteration. But I think there is probably better way of doing this?

Regards,
John

[mathias]

Dear John,

yes, that is right. I third way is to put the binary in a vtk vti file format and you the vtiReader of OpenLB. Then, transform it intro an analytical functor and use it to set the materials.

Best
Mathias

[Author]

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