Subject: Re: hinting lost on generating ttf - msg#00028

Previous Message by Date: click to view message preview

Re: hinting lost on generating ttf

On Monday 28 August 2006 16:49, Con Kolivas wrote: > On Monday 28 August 2006 15:50, Con Kolivas wrote: > > On Monday 28 August 2006 14:03, George Williams wrote: > > > On Sun, 2006-08-27 at 18:53, Con Kolivas wrote: > > > > I have a problem that simply loading any ttf font with hinting and > > > > then choosing "generate fonts->truetype" will always lose the > > > > hinting, even if I make no modifications. > > > > > > I cannot duplicate this. In my test fonts hinting is retained. > > > (hinting is not really the right there, though fontforge uses it, the > > > truetype instructions are retained and appear to work). > > > > > > How do you determine that hinting has been lost? > > > > > > You will probably have to send me a copy of the font you are working > > > on. > > > > The big Japanese fonts are the ones causing me trouble. Specifically the > > hiragino open type fonts. The MS Mincho and MS Gothic retain a lot but > > not all the hints it seems. > > My mistake. It's only when opening an otf and then generating a ttf without > changing it that all the hints are lost. To that end, even bitstream vera > as an otf will lose all its hints on generating a ttf font from it. I can > tell that by simply loading the newly generated ttf, as every entry is > highlighted as needing hints. I've attached a bzip2 compressed vera.otf > (30kb) which has all its hints still intact to make testing easy. The common feature from my experimenting seems to be a cubic spline and generating a ttf file. Once a font is converted to cubic splines or starts out with cubic splines, the hints seem to not be written when generating a non quadratic spline ttf file. Thanks, Con ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642

Next Message by Date: click to view message preview

Re: hinting lost on generating ttf

On Tuesday 29 August 2006 00:50, George Williams wrote: > On Sun, 2006-08-27 at 23:49, Con Kolivas wrote: > > My mistake. It's only when opening an otf and then generating a ttf > > without changing it that all the hints are lost. To that end, even > > bitstream vera as an otf will lose all its hints on generating a ttf font > > from it. I can tell that by simply loading the newly generated ttf, as > > every entry is highlighted as needing hints. I've attached a bzip2 > > compressed vera.otf (30kb) which has all its hints still intact to make > > testing easy. > > Oh, yes, of course that happens. > TrueType uses one mechanism for hinting a font, PostScript (otf) > another. The hinting formats are so different that they can't be > converted. Oh bummer. What about hinting in opentype format truetype? Is that different from plain otf? > > FontForge's ability to generate truetype instructions is pretty bad, so > it won't do this automagically on conversion. > > If you want to use FF's auto-instruction capability: > Start out with a PostScript font > Element->Font Info->General->Quadratic > [OK] > Select All > Hints->AutoInstr > > Going the other direction > Start out with a quadratic font > Element->Font Info->General->Quadratic (uncheck) > [OK] > Select All > Hints->AutoHint Hmm I tried endlessly and still I can't seem to generate a ttf font of any sort in Cubic with any hinting saved. Is that expected? Thanks! Con ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642

Previous Message by Thread: click to view message preview

Re: hinting lost on generating ttf

On Monday 28 August 2006 16:49, Con Kolivas wrote: > On Monday 28 August 2006 15:50, Con Kolivas wrote: > > On Monday 28 August 2006 14:03, George Williams wrote: > > > On Sun, 2006-08-27 at 18:53, Con Kolivas wrote: > > > > I have a problem that simply loading any ttf font with hinting and > > > > then choosing "generate fonts->truetype" will always lose the > > > > hinting, even if I make no modifications. > > > > > > I cannot duplicate this. In my test fonts hinting is retained. > > > (hinting is not really the right there, though fontforge uses it, the > > > truetype instructions are retained and appear to work). > > > > > > How do you determine that hinting has been lost? > > > > > > You will probably have to send me a copy of the font you are working > > > on. > > > > The big Japanese fonts are the ones causing me trouble. Specifically the > > hiragino open type fonts. The MS Mincho and MS Gothic retain a lot but > > not all the hints it seems. > > My mistake. It's only when opening an otf and then generating a ttf without > changing it that all the hints are lost. To that end, even bitstream vera > as an otf will lose all its hints on generating a ttf font from it. I can > tell that by simply loading the newly generated ttf, as every entry is > highlighted as needing hints. I've attached a bzip2 compressed vera.otf > (30kb) which has all its hints still intact to make testing easy. The common feature from my experimenting seems to be a cubic spline and generating a ttf file. Once a font is converted to cubic splines or starts out with cubic splines, the hints seem to not be written when generating a non quadratic spline ttf file. Thanks, Con ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642

Next Message by Thread: click to view message preview

Re: hinting lost on generating ttf

On Tuesday 29 August 2006 00:50, George Williams wrote: > On Sun, 2006-08-27 at 23:49, Con Kolivas wrote: > > My mistake. It's only when opening an otf and then generating a ttf > > without changing it that all the hints are lost. To that end, even > > bitstream vera as an otf will lose all its hints on generating a ttf font > > from it. I can tell that by simply loading the newly generated ttf, as > > every entry is highlighted as needing hints. I've attached a bzip2 > > compressed vera.otf (30kb) which has all its hints still intact to make > > testing easy. > > Oh, yes, of course that happens. > TrueType uses one mechanism for hinting a font, PostScript (otf) > another. The hinting formats are so different that they can't be > converted. Oh bummer. What about hinting in opentype format truetype? Is that different from plain otf? > > FontForge's ability to generate truetype instructions is pretty bad, so > it won't do this automagically on conversion. > > If you want to use FF's auto-instruction capability: > Start out with a PostScript font > Element->Font Info->General->Quadratic > [OK] > Select All > Hints->AutoInstr > > Going the other direction > Start out with a quadratic font > Element->Font Info->General->Quadratic (uncheck) > [OK] > Select All > Hints->AutoHint Hmm I tried endlessly and still I can't seem to generate a ttf font of any sort in Cubic with any hinting saved. Is that expected? Thanks! Con ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642