Tony,

I went looking, and as far as I can tell, bama doesn't have a jpeg of the HW101
on his site, only djvu.

If you set the quality of the jpeg rendering to 77%, you get about
the same size as a gif, and the "dots" you are complaining about
go away. Add some smoothing, and you can get the same result
with around 50%, and 1/3 the file size.

Gif works, but there are better lossless algorithms readily available. The
typical Gif schematic I see is B&W, stored in full 24bit color, with large
borders around the important stuff. And as a result, they are very large
in size. Some simple adjustments would improve this, of course, but most
folks are so dumbed down that they haven't a clue about things like that.

I have worked with numerous schematics of very poor quality, and somehow,
I can always get the job done. But as always, YMMV.

-Chuck Harris

Antonio I0JX wrote:
Chuck,

jpg is perfect for images and photo, but is not good when there are sharp black / while transitions as it occurs for
circuit diagrams and text in general.With jpg, unless you reduce the compression level a lot, you will typically see
small "dots" scattered around the lines representing the circuit wires. And wires do not appear "solid" any more. So,
diagrams do not come out clean.

For schematic diagrams quality is the priority, not file size. Lossless compression (gif, png) is the only way to get
a good diagram.

If you have time try and download the "improved" HW-101 schematic diagram from BAMA (or much better its mirror site
http://bama.edebris.com/manuals/), you can judge yourself whether a technican can work comfortably with that.

73

Tony, I0JX