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any relationship between font size and actual size for placement purposes?

Jerry Davis

Sun, Nov 15, 2015 2:09 PM

Is there any relationship between font size, and how much height, and width
(in units)?

So far, I don't see any relationship at all. And it makes parametrically
very hard to center it on an object.

I have an object that the text is translated() to be centered. But when I
change the parameters of length and/or width, I can't seem to find way to
recenter it by some modifier.

If there isn't is there a way to get back the size (in units) of the
rectangle it fits in? I could then use that to translate using recalculated
values.

Jerry

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Is there any relationship between font size, and how much height, and width (in units)? So far, I don't see any relationship at all. And it makes parametrically very hard to center it on an object. I have an object that the text is translated() to be centered. But when I change the parameters of length and/or width, I can't seem to find way to recenter it by some modifier. If there isn't is there a way to get back the size (in units) of the rectangle it fits in? I could then use that to translate using recalculated values. Jerry -- Extra Ham Operator: K7AZJ Registered Linux User: 275424 Raspberry Pi and Arduino developer *The most exciting phrase to hear in science - the one that heralds new discoveries - is not "Eureka!" but "That's funny...".*- Isaac. Asimov *I* *f you give someone a program, you will frustrate them for a day; if you teach them how to program, you will frustrate them for a lifetime. *- Anonymous *If writing good code requires very little comments, then writing really excellent code requires no comments at all!*- Ken Thompson

Torsten Paul

Sun, Nov 15, 2015 2:26 PM

On 11/15/2015 03:09 PM, Jerry Davis wrote:

Is there any relationship between font size, and how much height,
and width (in units)?

Yes, that is defined in the actual font file and can vary quite
a lot for different fonts.
A very detailed description can be found in the documentation of
the freetype2 library that is used for text handling.
http://www.freetype.org/freetype2/docs/tutorial/step2.html

I have an object that the text is translated() to be centered. But
when I change the parameters of length and/or width, I can't seem
to find way to recenter it by some modifier.

Where did you search? Have a look at the alignment chapter:
https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Text#Alignment

If there isn't is there a way to get back the size (in units) of
the rectangle it fits in? I could then use that to translate using
recalculated values.

Getting the actual coordinates of the generated geometry is currently
not possible. In some cases, it might be possible to use resize()
to fit the text into a specific area.

ciao,
Torsten.

On 11/15/2015 03:09 PM, Jerry Davis wrote: > Is there any relationship between font size, and how much height, > and width (in units)? > Yes, that is defined in the actual font file and can vary quite a lot for different fonts. A very detailed description can be found in the documentation of the freetype2 library that is used for text handling. http://www.freetype.org/freetype2/docs/tutorial/step2.html > I have an object that the text is translated() to be centered. But > when I change the parameters of length and/or width, I can't seem > to find way to recenter it by some modifier. > Where did you search? Have a look at the alignment chapter: https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Text#Alignment > If there isn't is there a way to get back the size (in units) of > the rectangle it fits in? I could then use that to translate using > recalculated values. > Getting the actual coordinates of the generated geometry is currently not possible. In some cases, it might be possible to use resize() to fit the text into a specific area. ciao, Torsten.