Troubleshooting

scripting strings

Started by Identity-Problem on .

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18 posts

Identity-Problem

Last updated

Topic starter
hi there,

lets say i want to display a battery percentage as Pad's label so that it will show

for example :"Battery : 55 %"

My problem is that i don't know how to script a string so that only one object will be needed to do so ( in this case :Pads object)

I'm new to this and as far as i understand it the script should be something like:

set attribute(Pads, 'labels',{ 'Battery :' , floor(battery*100) , '%'});

but i'm obviously doing smith wrong. any help appreciated

oldgearguy

Last updated

Also note that unless floor(battery*100) is doing something different than I think, I only see updates every 5% (i.e. - 100, 95, 90, 85, etc). I have never seen 92 or 78 or 63. So if you don't see it constantly updating, that probably working as expected.

Identity-Problem

Last updated

i noticed. i haven't seen 73 or 58 as well, but that's fine(don't need so much precision with battery display). anyway thanks!

....
another problem is that i want to see CPU percentage from Reaktor on OSC expression. i can get it right on Monitor because it has 'precision' chechbox, but on pads it displays the whole OSC message like 1,2346456 or so . i only want first three digit to be displayed on second pad and a BPM value o third Pad.

set attribute (Pads, 'labels', {battery, CPU, BPM};

still didn't figure out how to do this
cheers

oldgearguy

Last updated

Identity-Problem wrote:i noticed. i haven't seen 73 or 58 as well, but that's fine(don't need so much precision with battery display). anyway thanks!

....
another problem is that i want to see CPU percentage from Reaktor on OSC expression. i can get it right on Monitor because it has 'precision' chechbox, but on pads it displays the whole OSC message like 1,2346456 or so . i only want first three digit to be displayed on second pad and a BPM value o third Pad.

set attribute (Pads, 'labels', {battery, CPU, BPM};

still didn't figure out how to do this
cheers

Can't do it. Even displaying the Monitor.value in another with shows the entire fraction.

The quick, big hammer, not elegant answer is to create Monitors on top of the pads and display to the Monitors instead of the pad labels.

Macciza

Last updated

Hi
Should be able to just do a little maths to get what you want
Multiply and truncate to get the number of digits need and divide back again
ie floor(1.2346456*1000)/1000 = 1.234
Cheers
PS I guess you could also use round to be a bit more accurate . . .

oldgearguy

Last updated

Softcore wrote:That was my initial reply macciza but I edited because I believe you will still get

1.23400000 at the label

haven't checked though, so Im not sure!
I thought so too. I have a couple alternate methods (to contradict my original post - sometimes I just need more time to mull it over)

NOTE, CAVEAT, WARNING, DISCLAIMER - I don't have a Lemur environment to test this - I keyed it in believing it will work, but you should test it in isolation before sending out production code with it embedded....

Assuming you want to just display the info and not do further math on it, you can try this:
create a manual script --

convert(n, p)
{
decl multiplier, num, frac, answer;

multiplier = pow(10, p);
num = floor (n);
frac = floor((n - num) * multiplier);

answer = num+'.'+frac;
return(answer);
}

then in your code you can do something like: setattribute(myPad, 'label', convert(num, 3));

If you always want to just show 3 positions, you can dispense with the second parameter and hardcode 1000 in the script, but I thought I might as well make it generic.

oldgearguy

Last updated

I had a second method, but I really need to key it into the editor and see if it runs.
The basic idea is to turn a number into a string, then subarray it:

strNum = ''+num; // concatenating a null string to a number turns it into a string
answer = subarray(strNum, 0, sizeof(strNum) - 3);

Given that subarray() and sizeof() work on arrays and not strings, this idea might need tweaking...

oldgearguy

Last updated

Softcore wrote:There are of course a lot of ways to create a script but it all depends on what exactly is the expected range of our value....that 1.38974934 got me wondering (seeing > 1)
I think my script will handle any possible numeric value. That's why I treated the whole number part and fractional part separately and then glued them back together around the decimal point at the end.

Softcore

Last updated

OK, I can confirm the first solution of Oldgearguy works with a slight change in the manual script....

See....this one is NOT converted into a string:
answer = num+'.'+frac;
THIS ONE though is:
answer =''+ num+'.'+frac;
(for some reason, Lemur string concatenation assumes a summed variable to be a string, only when the first element of the concatenation is a string)

And here is an example

oldgear-fraction.jzml

oldgearguy

Last updated

Softcore wrote:OK, I can confirm the first solution of Oldgearguy works with a slight change in the manual script....

See....this one is NOT converted into a string:
answer = num+'.'+frac;
THIS ONE though is:
answer =''+ num+'.'+frac;
(for some reason, Lemur string concatenation assumes a summed variable to be a string, only when the first element of the concatenation is a string)

And here is an example
Thanks for checking and correcting. Funny -- I had written it the first way initially then deleted it thinking I had done string cats before without the first part being a string.
I haven't been home much and can't install/run the Lemur editor at work, so I appreciate you taking the time to punch it in and fix it.