Scaling Data Points to Window

dailyinvention

Hello,

I am currently trying to figure out the best way to tackle this and if you have any suggestions it would be most appreciated. I have an array of JSON objects retturned from an HTTP request that contain numerical values. These values can range from 100 to 100,000,000. Do you know of possible ways of scaling these particular values as points to a window? Would I have to get the highest possible value first to map it to the pixels of the window or are there other options? How would this be accomplished?

Thanks in advance for any help.

Chrisir

Use map() if you can guess the range

Eeyorelife

If you don't know what the highest and/or lowest number will will be, you can always iterate through all the numbers to determine which is the highest and/or lowest. In a for loop:

if(nr[i] >highestNr) hihgestNr = nr[i];

Then in another loop: map (nr[i, lowestNr,highestNr, 0,width);

dailyinvention

That helped immensely. Thank you.

GoToLoop

https://forum.Processing.org/two/discussion/16600/script-won-t-load-in-browser-but-no-error-message-in-console

http://p5js.SketchPad.cc/sp/pad/view/ro.90xVTuJFcVi/latest