DJ Sundog from the *new* toot-labMar 16
There’s a tool I use to generate depth maps (grayscale images that denote depth using white as “no depth” and black as “as deep as it goes” and breaking up the layers in between into the number of grays the image uses) from STLs (meshes for, generally, 3D printing) so we can take our prototype 3D printed molds and reproduce them in aluminum using our fiber lasers (in theory, when everything is working correctly).
Show threadDJ Sundog from the *new* toot-labMar 16

It’s a single web page, in which is some javascript that does the actual generation of the depth map, completely offline in your browser. It is super simple and it does the thing, so that’s what I’ve used since I found it.

But.

Show threadDJ Sundog from the *new* toot-labMar 16

But it does this thing.

It adds a one pixel black line across the top and a one pixel black line down the left side of every PNG output it produces for me.

Like so:

Show threadMayor of BanjotownMar 16
@djsundog this is relevant to my interests (although what I have been idly looking for is a tool that does the opposite; takes a greyscale PNG and generates an STL)
Show threadDJ Sundog from the *new* toot-labMar 16
@mayor https://fenrus75.github.io/FenrusCNCtools/javascript/stl2png.html - just run that backwards and you’re golden?
STL2PNG - javascript edition

Show threadMayor of BanjotownMar 16

@djsundog occurs to me that a "png to lithophane" tool would probably do the trick, and there seem to be a bunch of those

I do love a good "static JS on a static HTML page" app though

Show threadMayor of Banjotown
@djsundog https://github.com/DEF7/TGA2STL
Mar 23 at 4:16pmWeb
Show threadDJ Sundog from the *new* toot-lab4d ago
@mayor nice!