topic Re: (MEL) attrFieldSliderGrp -step flag doesnt fully work in Maya Programming Forum

(MEL) attrFieldSliderGrp -step flag doesnt fully work

absoluteKelvin — Thu, 24 Jun 2021 13:25:35 GMT

window -title "Attr Field Slider Groups"; string $objName[] = `sphere`; columnLayout; attrFieldSliderGrp -min -10 -max 10 -step 2 -at ($objName[0]+".tx"); showWindow;

using the mel example from doc with -step flag set to 2 increments. Only works when ctrl + middle click is held. just dragging the slider doesn't increment at 2.

According to documentation this is suppose to work.

https://help.autodesk.com/cloudhelp/2020/ENU/Maya-Tech-Docs/Commands/attrFieldSliderGrp.html

-step(-s) float C Q E

Sets the increment for both the slider and float field.

Re: (MEL) attrFieldSliderGrp -step flag doesnt fully work

absoluteKelvin — Sun, 27 Jun 2021 14:38:27 GMT

i have been searching and found a workaround. but cant seem to get it to run properly

{ string $window = `window -title "intSliderGrp Example"`; string $slider = ($window + "Slider"); int $step=3; columnLayout -columnAlign "right"; intSliderGrp -l "Even" -f 1 -step $step -fs $step -cc ("intSliderGrp -e -v ((intSliderGrp -q -v "+$slider+") - (fmod(float(intSliderGrp -q -v "+$slider+"), "+$step+"))) " + $slider) $slider; showWindow; } // Error: Line 1.53: Invalid use of Maya object "v". //

any ideas?

Re: (MEL) attrFieldSliderGrp -step flag doesnt fully work

Rourker27 — Mon, 28 Jun 2021 00:03:23 GMT

Well you are using fmod here and you are using an intSliderGrp. You won't need to cast your ints as floats to use fmod with if you use an integer modulo (%). I did look at the -step flag, and as you say, it isn't working properly.

This is a pretty hacky work around for it and it is similar to what you are trying to do:

string $window = `window -title "intSliderGrp Example"`; string $slider = ($window + "Slider"); proc stepChange() { int $step=3; int $changeNum; $sliderVal = `intSliderGrp -q -v slider`; print($sliderVal); if ($sliderVal % $step != 0) { $changeNum = $sliderVal - $sliderVal % $step; intSliderGrp -e -v $changeNum slider; } } columnLayout -columnAlign "right"; intSliderGrp -l "Even" -f 1 -step $step -fs $step -cc stepChange slider; showWindow;

Re: (MEL) attrFieldSliderGrp -step flag doesnt fully work

absoluteKelvin — Mon, 28 Jun 2021 12:55:00 GMT

thanks for that. Rourker27.

end up with this using your suggestion.

{ string $window = `window -title "intSliderGrp Example"`; global string $slider; $slider = ($window + "Slider"); proc stepChange() { int $changeNum; $sliderVal = `intSliderGrp -q -v $slider`; //print($sliderVal); if ($sliderVal % 2 != 0) { $changeNum = $sliderVal + ($sliderVal % 2); intSliderGrp -e -v $changeNum $slider; } } columnLayout -columnAlign "right"; intSliderGrp -l "Even" -f 1 -step 2 -fs 2 -cc stepChange $slider; showWindow; }

Re: (MEL) attrFieldSliderGrp -step flag doesnt fully work

Rourker27 — Mon, 28 Jun 2021 15:31:47 GMT

Looks good to me, I doubt you need the -step and -fs flags, but they aren't doing anything anyway so no harm I guess. I hope this gets a proper fix at some point.