User talk:Alejo2083

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This is an old revision of this page, as edited by Alejo2083 (talk | contribs) at 14:15, 13 October 2005 (→‎Good work on the Bessl functions). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

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Good work!

I am wondering if we should start a WikiProject for Electronics. User:Omegatron/sig 00:20, 15 September 2005 (UTC)

Dia

How difficult was it to make Image:Star-Triangle transformation.png? I've experimented with dia and couldn't get anything useful out of it.

We have SVG support now, so we can theoretically make high-quality schematics that others can then edit. I tried drawing an example in Inkscape:

The fonts look different, of course.  :-\ Also I drew each component by hand, which is a pain. Now they're in groups that can be copied and pasted, but Inkscape's not really meant for blocks-connected-by-wires-on-a-grid type drawing. Any ideas? User:Omegatron/sig 00:36, 15 September 2005 (UTC)

Dia & Superdiode

Hey, I read the two things you wrote me on my talkpage. I absolutely agree about creating a a WikiProject for Electronics, it would be useful for a sort of unification of the style and planning of the further work.

The main problems are: 1) decide a common style and create some templates, but we can start from an existing stub template 2) we'll have to suggest a common programme to draw circuits, to export in SVG.

I have few ideas, if you agree I'll start writing the article about the wikiproject now, then we'll discuss all the other improvements.

About using Dia for drawing: I tried using it once, but as you can see I made all the other circuits after that with Xcircuit. Dia has some strong limitations: most of the devices are not in the library (I drew only resistors with it!) and you can't rotate objects. In my Image:Star-Triangle transformation.png I made a draft with Dia and I postprocessed it with Gimp (rotating and connecting the resistors, etc.). Drawing something more complicated would be crazy.

I took a look at the Inkscape you told me about: it's the most promising programme, but there are few issues. There is a lot to say about this topic, and if you agree I will write properly on the page of the future wikiproject about electronics. I thought about contacting the developers of the programme, too: wikipedia is important and to be a programme suggested by wikipedia could be important for them, so I think they won't mind adding a few features for us, hopefully with our help.

Alessio Damato 13:43, 18 September 2005 (UTC)[reply]

As for the Wikiproject, I just see it as a nice place to discuss things and organize our efforts. "Standardizing" on the electronics articles could be useful, too.
I agree that the interface for Dia is very poor. Inkscape has a pretty good interface and nice output, but it's meant for artistic drawing and not diagramming. I was reading around and they plan to introduce some more diagramming features in the future, but don't want to go too far in that direction for fear of bloating past their primary art focus. They've just added the ability to create program extensions, though, which could be very useful. User:Omegatron/sig 04:42, 19 September 2005 (UTC)
Ok, I'll start writing the page for the Wikiproject saying all the problems to solve, and we'll find a solution with the other people that will join (hopefully :-) Alessio Damato 20:53, 19 September 2005 (UTC)[reply]


Barnstar

I, V. Molotov, give you this Working Man's Barnstar for work pertaining to Rome.

Take care, Molotov (talk) 21:47, 19 September 2005 (UTC)[reply]

Thanx :-) Alessio Damato 22:03, 19 September 2005 (UTC)[reply]

Wikiproject about electronics

Hi, I did it: I started a Wikiproject about electronics. The home page is here. Take a look and tell me what you think about it: after that we'll start diffusing it :-) Alessio Damato 18:53, 20 September 2005 (UTC)[reply]

I've started adding to it. I think this is a good idea! User:Omegatron/sig 20:35, 20 September 2005 (UTC)

SVG Bessel plots

Hi, I noticed that you added SVG versions of the plots in Bessel function. In principle, this seems like a good idea to me. However, I have a couple of requests/suggestions.

First, do not use color as the sole way to distinguish between curves. This is problematic for the color blind, and for monochrome display devices. One way to fix this is to also use dashed/dotted lines, etcetera, an even better way is:

Second, it is much better to attach labels to curves directly (see the original versions of the Bessel plots, for example), rather than having a second "legend" box. This avoids an indirection, where the user has to look back and forth between a "key" and the data rather than just at the data; see e.g. Tufte, The Visual Display of Quantitative Information.

Third, I notice that your y-axis label for Image:BesselJ plot.svg falls on top of the tick numbering; please be careful of small glitches like this.

(Unfortunately, gnuplot is not the most flexible plotting tool in the world.)

—Steven G. Johnson 23:57, 9 October 2005 (UTC)[reply]

I absolutely agree with you. First I have to improve my knowledge about gnuplot, then I'll work on it. Just in case I could post-process the image with Sodipodi or something like this (as I did for the picture of the Gamma function), but I want to get the best I can from gnuplot first, then I'll make smaller changes with other programs. I'll tell you when I make a sensible change to the plot. Alessio Damato 12:35, 10 October 2005 (UTC)[reply]
ok, I did it. I don't think I can get anything better, but according to me it is alright. Take a look at Bessel function. Alessio Damato 12:27, 12 October 2005 (UTC)[reply]

Good work on the Bessl functions

Hi,

Looks like good work on the bessel functions, thanks ! linas 23:10, 12 October 2005 (UTC)[reply]

thanx :-) Alessio Damato 14:15, 13 October 2005 (UTC)[reply]