Altitude expression?

[Walter Soyka]

You may find this thread useful:

https://forums.creativecow.net/thread/2/925863

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog – What I’m thinking when my workstation’s thinking
Creative Cow Forum Host: Live & Stage Events

[Chris Wright]

I took the liberty to update Dan’s expression for you. It will count as fast as the text layer is long in the project, so just size the text layer as needed. Also, you’ll want to go to paragraph-right align text.


numDecimals = 0;
commas = true;
dollarSign = false;
beginCount = 0;
endCount = 24698526;
dur = Math.floor(thisLayer.outPoint);

t = time - inPoint;
s = linear (t, 0, dur, beginCount, endCount).toFixed(numDecimals);

prefix = "";
if (s[0] == "-"){
prefix = "-";
s = s.substr(1);
}
if(dollarSign) prefix += "$";

if (commas){
decimals = "";
if (numDecimals > 0){
decimals = s.substr(-(numDecimals + 1));
s = s.substr(0,s.length - (numDecimals + 1));
}
outStr = s.substr(-s.length, (s.length-1)%3 +1);
for (i = Math.floor((s.length-1)/3); i > 0; i--){
outStr += "," + s.substr(-i*3,3);
}
prefix + outStr + decimals + " m";
}else{
prefix + s+ " m";
}

https://technicolorsoftware.hostzi.com/

[Chris Wright]

updated a small bug.
dur = Math.floor(thisLayer.outPoint-thisLayer.inPoint);
and then I realized beginCount = 25; /which needs to be fixed.

https://technicolorsoftware.hostzi.com/

[Steve Waldron]

Wow – you’re all very kind to help me out like this.

Thank you very much indeed. I will give this a shot and let you know.

Thanks again, very grateful!

[Steve Waldron]

Hi guys just a quick question on the revisit on this. It’s all working great but in my attempt to futher my knoweldge of expressions I took a bit of inspiration from Dans code and was wondering if it was possible.

Dan uses a $ sign at the start, I was wondering if I could use an M at the end to show it as metres?

I have tried changing the line of code:
if(dollarSign) prefix += “$”;

to:
if(dollarSign) sufix += “m”;

Which doesn’t work, but I am just guessing at the code. Anyone have any better ideas?

Thanks again guys, I really want to get into expressions more as they certainly do the job!

[Chris Wright]

the prefix isn’t a command, it’s a variable
from this…
prefix = “”;

it’s saying, if(dollarSign) …or if dollarSign = true, then prefix +=”$” add a dollar sign to the variable prefix “” that’s now prefix = “$”. I already made the code append a “m” to the end of your numbers.

see, down at the bottom there’s prefix + s. it’s basically $+ number

now if you want to code your own append suffix, you would go like…at the top

meterSign = true;
suffix = “”

if(meterSign) suffix += “m”;

outStr + decimals + suffix;
}else{
prefix + s+ suffix;

https://technicolorsoftware.hostzi.com/