hatch image

[denzjos]

In this discussion I've searched for another sollution and I found one in the GMIC filters.
1/ make a new square layer
2/ make a drawing on the layer
   
3/ make new layer (white / remove alpha channel)
4/ activate filter : G'MIC QT / patterns / strip and change parameters (different distances between the hatch lines ar possible)
   
6/ copy the new layer and select subtract from the layer below
7/ move the layer a few steps left or right
   
8/ merge down the layer and invert the color of the new layer
9/ make the layer invisible and select the layer with the drawing
10/ select the inside of the drawing with the fuzzy select tool
11/ invert the selection
12/ delete the selection (and merge the layers)
   

Denzjos