script to color change

[Marietaa]

I'm trying to change field colors with loop but it doesn't work.

I used this script as calculation

for(var i=1; i<=3; i++){
if(color.equal(this.getField("c"+i).fillColor, color.yellow))
this.getField("Text"+i).fillColor = color.yellow;}

I'm not getting any errors.

[try67]

How did you apply to fill color to the "c" fields originally?

My guess is it's an RGB value, while color.yellow returns a CMYK value. And while the equal method should (in principle) know how to compare colors of different spaces it often fails to do so due to rounding issues.

[Test Screen Name]

Are the fields concerned definitely THIS shade of yellow - rather than some other similar yellow. (Really, that is, was the existing colour set in JavaScript to color.yellow)?

[Marietaa]

I was using rgb.

I tried RGB with RGB not working.

color.yellow and color.yellow works.

But I want to use different shades instead of predefined colors so I tried:

["CMYK",0,0,1,0 ] vs ["CMYK",0,0,1,0 ] and it works but that is also predefined yellow, while

["CMYK",0,.03,1,0 ] vs ["CMYK",0,.03,1,0 ] doesn't work?

[try67 · Accepted solution]

Run this code to see the reason for this issue:

this.getField("Text1").fillColor=["CMYK",0,.03,1,0];

console.println(this.getField("Text1").fillColor);

[Marietaa]

Setting it to that number did worked, but how to calculate that without running that line?

[try67]

You have to manually round the values in the color array, before comparing the two colors.

[Marietaa]

How would I do that?

I tried using precision calculator but result was not the same as from the script above and it didn't work.

Is there some formula to calculate?

[Nesa Nurani · Accepted solution]

When using precision calculator, try setting decimals to the same number of decimals you get from that script that try67 provided.

TIP: you can also use same method for RGB colors too.

[try67 · Accepted solution]

You can do it like this:

var c1 = ["CMYK",0,.03,1,0];
this.getField("Text1").fillColor=c1;
var c2 = this.getField("Text1").fillColor;
console.println(color.equal(c1,c2)); // returns false
for (var i=1; i<c1.length; i++) c1[i]=Number(c1[i].toFixed(2));
for (var i=1; i<c2.length; i++) c2[i]=Number(c2[i].toFixed(2));
console.println(color.equal(c1,c2)); // returns true, after the values have been rounded