[Ktechlab-devel] My ktechlab modifications

[thomas at tgohome.com]

Hi... Again,

I have made some more tweaks... I've added capacitor over-rates, and I've
also fixed many NPN transistor over-rate bugs. I added maximum power
dissipation for transistors as well (however, I'd like someone else to
review that I'm doing it correctly)

One thing I added to capacitors (only fixed capacitors at the moment,
maybe variable caps soon) was a polar setting, and a maximum working
voltage setting. If the capacitor is polar, then it cannot tolerate more
than 2.5 volts backward. (This might be a setting later, but at the moment
it's fixed.) If working voltage is exceeded, or the capacitor is run in
reverse (when it is polar) an over-rate warning is shown. I also added
charge (coulombs), energy (joules) and volts to the tooltip for the
capacitor.

See screenshot:
   http://files.getdropbox.com/u/1134084/CapOverRateAndCharge.png

I will try to post a patch (and it will be a big patch, because a lot had
to be changed to accommodate these additions, which makes KTechLab a more
useful program for me, and hopefully others) based on current SVN soon.

Tom

> Hi again,
>
> Well, after a lot of fiddling, I actually made a pretty good amount of
> progress. I've added tooltips to BJTs informing you if you overrate them
> and what specifications have been overrated.
>
> See screenshot:
>   http://img268.imageshack.us/img268/934/overnpn.png
>
> Work needs to be done on separating parts of the drawing code from
> calculation code, as it's still a big hack. Then applying it to other
> components like ICs, capacitors, and resistors. Finally I need to figure
> out how to post a patch, because I haven't really kept track of files I
> changed. (Though my editor, KDevelop, leaves backup files like 'main.c~'
> which is useful in seeing which files have been modified.)
>
> I have made a modification which lets components set their own tooltips.
> At the moment these tooltips are all, by default, set to the component
> name. I was thinking of adding useful info like power dissipation, charge
> in a capacitor, etc. to the tooltips. Any other ideas?
>
> Tom
>
>> Nice! I'm not a coder, but I love that feature!
>>
>> thomas at tgohome.com wrote:
>>> I have added a feature, just to BJTs at the moment (but I'm planning
>>> resistors, capacitors and most ICs soon), which warns you if you
>>> overrate
>>> the device. The problem being at the moment, is all it does is show an
>>> exclamation mark next to the device.
>>>
>>> I am trying to figure out how to warn the user of the specifications
>>> which
>>> have been overrated. Any ideas? I was thinking of a tooltip. But how
>>> could
>>> this be done? Any implementation ideas?
>>>
>>> See pic for what has been done so far:
>>>   http://img14.imageshack.us/img14/5653/ktechlaboverratednpn.png
>>>
>>> If anyone wants the code they can have it, but it is very messy and
>>> probably breaks many standards about mixing display code and
>>> calculation
>>> code...
>>>
>>> Tom
>>>
>>>
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>>>
>>
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