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Selecting specific textIndex

Participant ,
May 24, 2022 May 24, 2022

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Hello,

how do I simplify and optimize the code below? As you can see I would like to affect every 6th character starting with #2 when the length of the text is not predetermined. Thank you in advance.

 

if(textIndex == 2 || textIndex === 8 || textIndex === 14 || textIndex === 20 || textIndex === 26) {

     100;

} else {

     0;

}

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correct answers 2 Correct answers

Community Expert , May 24, 2022 May 24, 2022

Like this maybe:

textIndex%6 == 2 ? 100 : 0

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Community Expert , May 24, 2022 May 24, 2022

Like this I guess:

n = thisProperty.propertyGroup(3).name%6;
textIndex%6 == n ? 100 : 0

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LEGEND ,
May 24, 2022 May 24, 2022

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textIndex % 6 + 2

 

Mylenium

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Participant ,
May 24, 2022 May 24, 2022

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Thank you.

When I replace 

(textIndex == 2 || textIndex === 8 || textIndex === 14 || textIndex === 20 || textIndex === 26)

with

(textIndex % 6 + 2)

the effect is not the same.

Attached is the screenshot of what I am trying to achieve and it is working with my expression, but I would just like to simplify it so I can automate different scenarios. 

 

 

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Community Expert ,
May 24, 2022 May 24, 2022

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Like this maybe:

textIndex%6 == 2 ? 100 : 0

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Participant ,
May 24, 2022 May 24, 2022

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Thank you so much, that works!!!

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Participant ,
May 24, 2022 May 24, 2022

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Hi Dan,

any ideas why when it comes to the 6th row it doesn't work?

so 

textIndex%6 == 6 ? 100 : 0

is not working (no errors) but doesn't do anything. Thank you

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Community Expert ,
May 24, 2022 May 24, 2022

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Ah, OK, so you have a different version of the expression applied to each row. Try it this way:

textIndex%6 == 0 ? 100 : 0

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Participant ,
May 24, 2022 May 24, 2022

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Thank you.

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Participant ,
May 24, 2022 May 24, 2022

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Dan,

apologizes for taking more of your time for such basic questions,
but what is the best way to combine

 

textIndex%6 == 2 ? 100 : 0

and

textIndex%6 == 0 ? 100 : 0

so one expression will cover both of these situations.

I am asking all of this because I am taking  #2 from 

 

thisProperty.propertyGroup(3).name;

 

where "Animator" name is "2".

Of course, I start with "1" and by duplicating the animator everything works fine until I hit the 6th copy. As you recommended I could change it manually into "0" but I am looking for the way that the original expression applied to the "1" will work in the "6" etc., as well.
Thank you in advance.

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Community Expert ,
May 24, 2022 May 24, 2022

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Like this I guess:

n = thisProperty.propertyGroup(3).name%6;
textIndex%6 == n ? 100 : 0

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Participant ,
May 24, 2022 May 24, 2022

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Beautiful. Thank you so much.

 

By the way, I am trying to understand what is going on here and I was looking around but could not find anything regarding what "%" represents.  Thank you again

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Participant ,
May 25, 2022 May 25, 2022

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Don't worry I found it. It is a remainder %. 

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Participant ,
Jul 02, 2022 Jul 02, 2022

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Hi,

one additional question. Dan's solution from above works perfectly for selecting rows. I would like an added checkbox to be able to switch from selecting from rows to columns. The only way right now I can do it with the expression below but I have to manually switch Expression selector>Based On from Characters which will give me row selection to LINES which will select columns.

 

row = effect("ROWS")("Slider");

column = effect("COLUMNS")("Slider");

checkN = effect("if OFF vertical COLORS --- if ON horizonatal COLORS")("Checkbox");

 

numb = (checkN == 0) ? row : column;

 

numToColor = thisProperty.propertyGroup(3).name%numb;

 

textIndex%numb == numToColor ? 100 : 0

 

Is there any way to add expressions to select 1st, 2nd, etc columns so I avoid manually switching Expression selector?

A few screenshots are included one is with what happens with the character selected, one is with lines selected, and one is a screenshot of the expression's timeline section just for reference.

As always thank you so much.

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Community Expert ,
Jul 02, 2022 Jul 02, 2022

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I think your setup is the opposite of what I'm used to, but when I've done grids in the past, you get the column number with index%numberOfColumns and you get the row number with Math.floor(index/numberOfColumns). I don't know if that helps at all.

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Participant ,
Jul 02, 2022 Jul 02, 2022

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Thank you, Dan, for your time,

I am not sure if I was clear enough in my question.

 

Just to explain something in general, I am building the box chart graphic using Webdings "g" letter which is a square (you can see the reference image in the attachment above)

 

Let's say I have a box graph with 4 rows and 5 columns

 

With the expression that I used based on your previous advice, it selects 1st box and then 5th, 9th, 13th and 17th.

 

My question is how can I write the expressions that select 1st 4 boxes.

And because I am using thisProperty.propertyGroup(3).name but duplicating the "Animator"

I should be able to select 5th to 8th and then 9th to 12th and so on.

 

This may be very basic and I thank you again for your help.

 

 

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Community Expert ,
Jul 03, 2022 Jul 03, 2022

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OK, so I've been playing around with this, and hopefully I've set it up like you have it. I think you can get everything you need with just the one checkbox control. This is what I have:

checkN = effect("if OFF vertical COLORS --- if ON horizonatal COLORS")("Checkbox").value;
numRows = text.sourceText.split("\r").length;
numCols = text.sourceText.split("\r")[0].length;
numColors = thisProperty.propertyGroup(4).numProperties;
myRow = Math.floor((textIndex-1)/numCols) + 1;
myCol = (textIndex - 1)%numCols + 1;

n = parseInt(thisProperty.propertyGroup(3).name,10); // number of this selector

if (checkN){
  myRow == n ? 100 : 0;
}else{
  myCol == n ? 100 : 0
}

You won't need the numColors variable unless you have a situation where there are more rows (or columns) than there are colors, in which case you'll have to add some additional modulo math to the expression to get the colors to cycle. I hope you find it useful.

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Participant ,
Jul 03, 2022 Jul 03, 2022

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Absolutely beautiful. Thank you so much, Dan.

I have sent a little tip for you, to have a coffee or a beer on me. 

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Community Expert ,
Jul 03, 2022 Jul 03, 2022

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Thanks -- I appreciate it! BTW, this has the mods to make the colors cycle:

checkN = effect("if OFF vertical COLORS --- if ON horizonatal COLORS")("Checkbox").value;
numRows = text.sourceText.split("\r").length;
numCols = text.sourceText.split("\r")[0].length;
numColors = thisProperty.propertyGroup(4).numProperties;
myRow = Math.floor((textIndex-1)/numCols)%numColors + 1;
myCol = ((textIndex - 1)%numCols)%numColors + 1;

n = parseInt(thisProperty.propertyGroup(3).name,10); // number of this selector

if (checkN){
  myRow == n ? 100 : 0;
}else{
  myCol == n ? 100 : 0
}

 

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Participant ,
Jul 03, 2022 Jul 03, 2022

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Thank you, Dan!!! It is amazing and so generous that you are always willing to help and provide guidance to everyone no matter how our questions sometimes could be so basic (maybe not in this case) and our skills level 
so very novice.

The first solution worked perfectly for me. Just a quick question about the second "colors cycle" solution, in what situation that solution would be fitting.  Thank you.

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Community Expert ,
Jul 04, 2022 Jul 04, 2022

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LATEST

If you expand the grid of squares so that there are more rows and/or columns than color selectors, when it runs out of colors, it will start over, and cycle through the colors again.

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LEGEND ,
May 24, 2022 May 24, 2022

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Here's another solution:

 

gLen=6;
gOff=2;

((textIndex+gOff) % gLen)*selectorValue

 

Mylenium

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Participant ,
May 24, 2022 May 24, 2022

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Thank you Mylenium. That is interesting but it gives different results than what I was looking for. It applies color to 1-3 skips 4 and then applies to 5-6. Check the attached if curious.

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