Trigger an Effect if Touching a Solid/shape/?

i want series of animation of data visualizations large groups of dots on map become selected , light (glow effect on) , deselected (glow effect off) change throughout animation different groups turning on , off periodically.

 

rather keyframe dozens of dots on , of, i'm sure there must clever way line of script perhaps checks if overlapping solid, or within shape's boundary , can move invisible solid on dots 'activate' them or...or... ideas?

 

i'm open solution this, doesn't have script. maybe there's additive effect overlay solid has binary on/off effect.

 

thanks in advance brain time!

expressions. here's simple thing can apply opacity instance.

 

//reference animated slider

mvalue=math.round(thiscomp.layer("xyz").effect("group id")("slider"));

 

//add additional group indices array needed

mgroups=[1,2,5,9];

 

//check if element in group

 

for (i=0;i<mgroups.length,i++)

{

if (mgroup[i] == mvalue)

{100}

else

{0}

}

based on array, elements can members of multiple groups. change values needed , animate slider hold keyframes hard switch toggle.

 

mylenium

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