Hiya,
Can I just sense check, Is it really relevant talking about a workaround that requires another piece of software, where you have to open other software and then reimport it back into Fusion? Or using another piece of software to verify if the decal is correct in Fusion.
What we need is decal IN FUSION to work correctly.
If you look back to the 2016 conversation @Phil.E asked for ideas about how to implement a good decal function in Fusion, I gave the example of indesign as one of the best image placement interfaces. Illustrator and Figma are both pretty decent too. Photoshop has it, (Photoshop 3D also has it, I think Dimension has it too.)
The theory should be
a) Decal placement respects size of placed file, (checks for DPI and converts DPI to units in fusion) OR does something simpler like makes 1px = 1mm in import.
b) Sets a 0,0 point (Top left or centre of area) on the surface of the face the decal is being attached to. (I understand that this is where the complexity comes in, but I am sure there is a way. Perhaps and idea would be to omit or put an error message when the face is too complex, but certainly on flat faces and cylinders, it should be dead easy, )
c) allows you to scale and position the decal off of this 0,0 point.
Mind you I really don't see the need for checking how other softwares do this, if Autodesk can build a program that allows you extrude sketches and then allows you to modify the sketch and then retroactively changes the model (genius!!) then I think they can build a neat little solution about how to respect the resolution of a graphic on a 'face'.
Feels slightly like treading water to me. However other softwares to check may be Maya and Cinema 4d. But the Cinema 4D texture map interface is super complex. Probably overkill for just placing a decal.
dc