Search found 67 matches

by jamadagni
Thu Jan 24, 2013 11:26 am
Forum: Specification
Topic: Reducing cubic bezier to quadratic
Replies: 14
Views: 6672

Re: Reducing cubic bezier to quadratic

Erwin Denissen wrote:It is not just a number, as it involves a formula. But if it helps, the constant used in the formula is 2.
H
Hi thanks -- I have the de Casteljau formula implemented, no problem. From your statement above, I will assume that 2 em units is the tolerance used. Thanks.
by jamadagni
Thu Jan 24, 2013 11:21 am
Forum: FontCreator - Discussion
Topic: Align toolbar buttons Send to back etc -- what are they for?
Replies: 3
Views: 2457

Re: Align toolbar buttons Send to back etc -- what are they

I agree, these are not very important features, but it allows one to define contours in a preferred order. Hi Erwin and thanks for your reply. I just now drew two overlapping circles in FC, and tried clicking on the intersection between them, and find that the contour which is conceptually "in fron...
by jamadagni
Thu Jan 24, 2013 11:09 am
Forum: FontCreator - Discussion
Topic: Align toolbar buttons Send to back etc -- what are they for?
Replies: 3
Views: 2457

Align toolbar buttons Send to back etc -- what are they for?

Hello. The Align and Distribute has four buttons -- Bring to front, send to back, bring forward, send back -- it is not clear to me what these are useful for in FC. Can anyone please elucidate? In general purpose vector editors the objects surely have a z-order (which I think is merely implemented a...
by jamadagni
Thu Jan 24, 2013 8:08 am
Forum: Specification
Topic: Reducing cubic bezier to quadratic
Replies: 14
Views: 6672

Re: Reducing cubic bezier to quadratic

There is no easy answer. You don't want to end up with too many points, but you do want an accurate conversion. I think FontCreator does a nice job, but there is always room for improvement. Hi Erwin and thanks for your reply. I was not trying to comment on the quality of FC's conversion of cubics ...
by jamadagni
Thu Jan 03, 2013 12:49 am
Forum: Specification
Topic: Reducing cubic bezier to quadratic
Replies: 14
Views: 6672

Reducing cubic bezier to quadratic

Hello. FC has to convert cubic beziers to a series of quadratics when it imports postscript-based vector images. In general, this conversion is only an approximation as most cubic beziers are not exactly representable by one or even more than one quadratic. http://fontforge.org/bezier.html#ps2ttf di...
by jamadagni
Mon Aug 13, 2012 6:32 pm
Forum: General Font Discussions
Topic: Clarifications about em units, point size and line spacing
Replies: 3
Views: 5180

Clarifications about em units, point size and line spacing

Hello. As I understand from Erwin's old post one em is equal to the current point size, and the em-units are to enable us to define a font w.r.t. that. For example, in a font with units_per_em=1024, a point with y=512 will be half the point size above the baseline. On screen that is translated into ...
by jamadagni
Sun Jul 08, 2012 1:05 am
Forum: General Font Discussions
Topic: Support for third-order spline fonts
Replies: 3
Views: 2461

Re: Support for third-order spline fonts

Hello William and thanks for your kind response. However the question was not about being able to draw third-order curves (which I can do using Inkscape on all the platforms that software runs on) but about the support for fonts using third-order splines in the font-rendering subsystem of various pl...
by jamadagni
Sat Jul 07, 2012 8:07 am
Forum: General Font Discussions
Topic: Support for third-order spline fonts
Replies: 3
Views: 2461

Support for third-order spline fonts

Well by the subject line I do also mean support for third-order spline fonts in FC. Any future plans for supporting them? Apart from that, does anyone have any idea about the support for third-order spline fonts on various platforms/software? Windows XP? Windows 7? Word 2003? Word 2010? Linux? (I pr...
by jamadagni
Tue Jun 26, 2012 11:16 am
Forum: General Font Discussions
Topic: How to remove all OpenType tables from a font?
Replies: 3
Views: 2644

Re: How to remove all OpenType tables from a font?

Select the Tables command from the Format menu, and go to the Unsupported page. Then delete these tables if present: BASE, DSIG, GDEF, GPOS, GSUB, and JSTF. Thanks. It is strange though that this is exactly what I did (well I just deleted all "Unsupported" tables) and it didn't work the first time ...
by jamadagni
Tue Jun 26, 2012 6:27 am
Forum: General Font Discussions
Topic: How to remove all OpenType tables from a font?
Replies: 3
Views: 2644

How to remove all OpenType tables from a font?

Unfortunately I've never been a fan of OpenType, having been frustrated with its inability in handling rare-use scripts and even in existing scripts the rare Sanskrit sequences I often need to use. I am thinking of rewriting many of my local fonts with Graphite . Can anyone tell me what to do to rem...
by jamadagni
Mon Jun 25, 2012 3:10 am
Forum: FontCreator - Discussion
Topic: Copy-pasting glyphs also retains hinting?
Replies: 6
Views: 4755

Re: Copy-pasting glyphs also retains hinting?

Thanks everyone for your replies.
by jamadagni
Fri Jun 22, 2012 2:43 am
Forum: FontCreator - Discussion
Topic: Copy-pasting glyphs also retains hinting?
Replies: 6
Views: 4755

Re: Copy-pasting glyphs also retains hinting?

If you copy/paste a glyph within the same font to a new glyph in the glyph overview, the hinting will be retained. However, as soon as you modify it in any way apart from adjust the right side-bearing, the hinting will be lost — check the little H at the intersection of the rulers. Thanks for this ...
by jamadagni
Thu Jun 21, 2012 5:45 pm
Forum: FontCreator - Discussion
Topic: Copy-pasting glyphs also retains hinting?
Replies: 6
Views: 4755

Copy-pasting glyphs also retains hinting?

Hello. I would like to know if I copy-paste a hinted glyph from one font to another or from one location to another within a font, will it retain any hints associated with the glyph or would they be lost?
by jamadagni
Thu Jun 21, 2012 5:40 pm
Forum: FontCreator - Bug Reports
Topic: [Resolved] Size of contour reported wrongly?
Replies: 8
Views: 4804

Re: Size of contour reported wrongly?

The harder one looks at the detail of any software, the more bugs one can find, but its only by prolonged use of a program that one can know which bugs are important to fix and which are minor or trivial. Some bugs should actually be left unfixed, because they have useful spin-offs, and fixing them...
by jamadagni
Fri Jun 08, 2012 12:45 pm
Forum: FontCreator - Discussion
Topic: Cubic to quadratic conversion when importing vectors
Replies: 11
Views: 8493

Re: Cubic to quadratic conversion when importing vectors

Apart from that, there should be nodes only when it is absolutely unavoidable for maintaing the proper desired shape of the curve (as in circular/elliptic components) I cannot offer a mathematical proof of the matter, yet my understanding of quadratic Bézier curves is that it is, with absolute math...