01-05-2018, 09:10 PM
The selection is the "marching ants" (moving dotted line). When you fill the selection that is what gets filled (as seen in your second screen shot).
If you want to fill just between the two wavy lines then your selection must coincide with the wavy lines.
Try this:
Select the Fuzzy Select Tool
Click between the two wavy lines
If it is not what you want then Undo Ctrl-Z, adjust the Threshold, and try again.
The selection will probably end up 1 pixel short of where you want it. Do Select > Grow by 1.
The selection should now be on top of the wavy lines.
Now bucket fill
Note:
The select tools have 4 modes in the Tool Options:
Replace, Add, Subtract, Intersect.
Use these to adjust your selection if necessary.
If you want to fill just between the two wavy lines then your selection must coincide with the wavy lines.
Try this:
Select the Fuzzy Select Tool
Click between the two wavy lines
If it is not what you want then Undo Ctrl-Z, adjust the Threshold, and try again.
The selection will probably end up 1 pixel short of where you want it. Do Select > Grow by 1.
The selection should now be on top of the wavy lines.
Now bucket fill
Note:
The select tools have 4 modes in the Tool Options:
Replace, Add, Subtract, Intersect.
Use these to adjust your selection if necessary.