topic Re: Poor ColorMix Function Performance following v.3.0.1 upgrade in App Development

Poor ColorMix Function Performance following v.3.0.1 upgrade

scjoel02 — Thu, 22 Sep 2016 19:19:30 GMT

Following an upgrade from 2.0.9 to 3.0.1, I am experiencing very poor performance of the ColorMix1 function.

I know the expression is a bit complicated, checking for values >1, then between 0 and 1, then less than 0, and performing colormixes in between, but the amount of data I have is very small, and prior to the upgrade it performed flawlessly.

Did Qlik change the way colors were processed in the 3.0.1 release?

Has anyone else experienced these kind of issues?

Thanks.

Re: Poor ColorMix Function Performance following v.3.0.1 upgrade

rohitk1609 — Sat, 24 Sep 2016 08:17:59 GMT

Hi Joel,

In my understanding Colormix function is working as same as earlier . Now , In your case its all about data . You can check in previous version of Consumer Sales App which comes by default , On first sheet the three bar charts have same function and same GUI.

Please mark the appropriate replies as CORRECT / HELPFUL so our team and other members know that your question(s) has been answered to your satisfaction.

Rohit Kumar

Re: Poor ColorMix Function Performance following v.3.0.1 upgrade

lakshmikandh — Sat, 24 Sep 2016 11:00:46 GMT

Hi,

I have upgraded the version to 3.0.1 but dont see any differences, can you attach some sample apps or images related to this ?

Thanks,

Lakshmikandh

Re: Poor ColorMix Function Performance following v.3.0.1 upgrade

swuehl — Sat, 24 Sep 2016 11:44:28 GMT

ColorMix1() function expects a number between 0 and 1 as first argument and I can't see a reason why the performance of color mapping should have degraded.

Reading your post, I think your expression is more complicated (i.e. the matching of your value you want to map against ranges ">1", "<0" and "inbetween 0 and 1" may include some complex repeated calculations) and maybe the performance of your value calculation has degraded.

Could you at least post your complete, full expression you are using as color expression?