How to perform division on mouseX and println the result (ie. show mouse position as percentage not pixels)

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kevinbraun

How to perform division on mouseX and println the result (ie. show mouse position as percentage not pixels)

in Programming Questions • 2 years ago

I'd like to print the coordinates of the mouse as a percentage as opposed to pixels. I am able to add or subtract from mouseX but cannot divide.

Thank you.

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allonestr..

Re: How to perform division on mouseX and println the result (ie. show mouse position as percentage not pixels)

2 years ago

You can divide, but, as mouseX is an integer, if you divide by another integer then the result is rounded down to the nearest integer. If you make one part of a division (I've forgotten the proper terms for the top bit and the bottom bit) a float, then the answer will be a float.

Try something like this

void setup()
{
size(200, 100);
}
void draw()
{
float mouseXpercent = float(mouseX) / width * 100;
//or
// float mouseXpercent = mouseX / 200.0 * 100;
println(mouseXpercent);
}

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How to perform division on mouseX and println the result (ie. show mouse position as percentage not pixels)

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Re: How to perform division on mouseX and println the result (ie. show mouse position as percentage not pixels)

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