Re: [ft] baseline / horizontal shift of symbols?

[Oliver Bandel]

Zitat von Oliver Bandel <address@hidden>:

> Hello,
>
> my other problem is fixed now. I have now a scalable font
> snd scaling is no problem.
>
> But now I have a new problem: when I get some glyphs
> from that font, and scale them and put them together,
> how to put them on one baseline?
[...]

It seems to me, it IS a scaling-problem.

When I see it correctly, the
 metrics.horiBearingY
can be used to determine, where the symbol begins
at the top.

So this can be used for alignment.

But when I create data for some symbols, I get the following results:

------**********---**********-----**----*****---------***-------
------**********---**********----****----****--------*****------
---------*****--------*****-----*****----****-------*******-----
---------*****--------*****-----******---****------*********----
---------*****--------*****------****----****-----****--*****---
---------*****--------*****-------**-----****----****-----***---
---------*****--------*****--------------****---****-------***--
---------*****--------*****----*******---***---****---------***-
---------*****--------*****----*******----**--------------------
---------******************------*****----**--
---------******************------*****----**--
---------*****--------*****------*****----**--
---------*****--------*****------*****----**--
---------*****--------*****------*****----**--
---------*****--------*****------*****----**--
---------*****--------*****------*****--------
---------*****--------*****------*****--------
---------*****--------*****------*****---***--
---------*****--------*****------*****---****-
---------*****--------*****------*****--*****-
------**********---**********----*****---****-
------**********---**********--*********-****-
------                        -*********------


This is one empty field (you can ignore the leading
"------" before the "H" starts).

Then "H", "i", "^" and the whole stuff vith vim
put together to see, what would happen....

As you can see, the small "i" is larger than the big "H".

I used FT_Set_Pixel_Sizes() for setting the size.
I think I had the similar results with FT_Set_Char_Size() (?).

Why is the small "i" larger than the big "H"?
Do I have to do the scaling by myself?
isn't there a value, that shows me, how much smaller
the "i" is, compared to the "H"?
Do I have to make that scaling by myself?
I can't believ that...

Please help.

TIA,
   Oliver