Mail Archives: geda-user/2015/09/23/04:43:27
Stefan Salewski wrote:
> What do you think about gschems symbol and text size? Is it optimal?
IMHO, this is a matter of style and taste. Therefore it cannot be decided
based on purely rational arguments. There is quite a range of acceptable
relative sizes. And there are traditions. Note the plural. :-)
> I
> can remember that some people complained that symbols are too large
> some years ago.
Well, I was none of the complainers. In fact, I like the symbol size to
text relation in the default library. Note, I am talking about the size of
the symbol excluding the pins. The pins seem rather large in the default
lib. This makes for unnecessarily awkward positioning if space is tight.
> But now I get the feeling that basic symbols (resistor, capacitor, ...)
> are indeed too large compared to the default 100 grid size. Resistor is
> 900 units in length, so for default 100 grid it can be placed in 9
> steps on his own area.
The resistors in my library are the same size when it comes to their body.
But their pins are 100 units rather than 300. So my resistors end up 600
units from hot spot to hot spot. Same with capacitors.
> Or, compared to the symbol size, default 100
> grid is too small. Making 200 grid the default does not work well,
> because 900 is odd. And indeed I think that 100 is a nice default grid
> size. So I consider shrinking the basic symbols. For screen display, I
> prefer 10 units for general line width, and currently I like 600 units
> for total resistor length. See http://ssalewski.de/PetEd.html.en
I prefer the European/Asian style of resistors as defined in DIN EN 60617
This standard uses boxes rather than zig-zag lines. The length of pins in
the artwork of a resistor symbol in the standard are 1/6 of the length of
the box. This is even shorter than the pins in my library.
> Note: On that picture you can see the 9 gray position marker crosses
> which are displayed when mouse pointer hovers over a text element. You
> can press MMB over one of them to change alignment of text. I like it.
+1
Many CAD programs feature similar markers of whatever a click would refer
to at the current position of the mouse. Usability of PCB could benefit
from such visual hints, too.
---<)kaimartin(>---
--
Kai-Martin Knaak tel: +49-511-762-2895
Universität Hannover, Inst. für Quantenoptik fax: +49-511-762-2211
Welfengarten 1, 30167 Hannover http://www.iqo.uni-hannover.de
GPG key: http://pgp.mit.edu:11371/pks/lookup?search=Knaak+kmk&op=get
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