Use guidelines for WPF render

[ForNeVeR]

Fixes #50.

That's my another try to fix that long-standing issue. That time I've finally read the documentation (thanks @Atomosk for pointing me to the tutorial page Draw lines excactly on physical device pixels).

That time, we have no obvious regressions for any of the scale settings, so I think that's definitely a way to go. Check the comparison (clickable):

(The fonts are notably clearer now, and even without turning off the font antialiasing settings!)

These changes supersedes the changes in #52 and in the branches bugfix/50-blur and bugfix/50-blur-alternate; gonna to delete them after the merge.

[ForNeVeR]

Need to check what's going on with that line. I've edited it with VS2017 with the default settings; probably it has changed the BOM in the file.

[ForNeVeR]

Yes it has been added the BOM. We shouldn't care.

[alexreg]

Ah, this is great news!

Just a note: I'm not sure how you're deleting the branches, but you still seem to be leaving Git refs around (git branch -r should verify this). I know you haven't merged yet, but this is the case for some old branches/refs, it seems.

[ForNeVeR]

@alexreg

Just a note: I'm not sure how you're deleting the branches, but you still seem to be leaving Git refs around (git branch -r should verify this). I know you haven't merged yet, but this is the case for some old branches/refs, it seems.

I just haven't deleted the branches yet :)

Usually I tend to keep my repositories in a cleaner state, but that time we have much work on issue #50, and I didn't want to delete any branches that could be useful until the issue is resolved.

I've verified and all the branches listed by git branch -r at the current moment are active, namely:

• origin/bugfix/50-blur (to be deleted after Use guidelines for WPF render #71)
• origin/bugfix/50-blur-alternate (to be deleted after Use guidelines for WPF render #71)
• origin/docs/fonts (my work on Documentation about dealing with XML #70)
• origin/feature/50-deblur-with-guidelines (this PR)
• origin/feature/geometry (see [WIP] Gotta draw 'em all on Geometry! #69)
• origin/feature/multiple-integrals (see [WIP] Multiple integrals #56)
• origin/master (you know that it is)

[ForNeVeR]

Thanks for the review, guys!

[torfranz]

Hi, although this is much better than before I still think there is blurred output especially on horizontal lines. When you look at the equal signs, both are still blurry in default scale 20. Vertical lines and text are pretty crisp at this scale level. Thanks for all the efforts though!

[ForNeVeR]

@torfranz could you please post a screenshot? I'm looking to improve the resulting image, but I'd like to agree on the formula pieces that have the worst rendering quality for now.

[torfranz]

Please note the blurred horizontal lines on the equal sign.

[ForNeVeR]

Thanks for elaboration. I can see the problem; I'll convert that into a new issue in the evening.

[alexreg]

There are still problems on the vertical lines too (of the radical sign), from that image. I didn't notice them when testing on my machine, however.