echoing out all the coordinates of a circle? [WARNING:Genius needed]

[onedumbcoder]

I been trying to figure this out and i am just to stupid to get it.  :'(

 

how do i echo out the x and y value as i go around a circle? lets say the radius of a circle is 10, and I go around the circle at 10 degree increments, how do I echo out what each y and x values are?

 

 

[benyhanna]

Why don't you go brush up on your geometry skills instead of having someone do your work for you?

 

[MadTechie]

Personally after reading [WARNING:Genius needed]

I wasn't going to reply as I find post that are labelled like this are only done so to get a quicker response, hence I intentionally ignore them, for awhile,

 

however I decided to have some fun, and relive some old school coding, of drawing

 

remove the GD stuff and uncomment the echo for the function you need (also for each 10th degrees your need 36 side (360 / 10)

 

<?php
header("Content-type: image/png");
drawCircle(100, 100, 50, 100);

function drawCircle($centerX, $centerY, $radius, $sides){
$im = @imagecreate(500, 500)  or die("Cannot Initialize new GD image stream");
$background_color = imagecolorallocate($im, 255, 255, 255);
$color = imagecolorallocate($im, 0, 0, 0);
for($i=0; $i<=$sides; $i++)
{
	$pointRatio = $i/$sides;
	$xSteps = cos($pointRatio*2*pi());
	$ySteps = sin($pointRatio*2*pi());

	$pointX = $centerX + $xSteps * $radius;
	$pointY = $centerY + $ySteps * $radius;

	// echo "$pointX, $pointY\n";
	imageellipse($im, $pointX, $pointY, 1, 1, $color);
}
imagepng($im);
imagedestroy($im);
}
?>

 

[corbin]

Basic trig and some algebraic geometry?  A genius?  I think some advanced 7th graders could do that x.x.

[MadTechie]

Great just over 11 minutes, that's how long my genius dream lasted thanks corbin 

 

Yeah I know, as I said the subject is just to get people to view it, I think drawing a circle was one of the first programs I ever created. 

 

I found it a little iconic I used the imageellipse() function to draw the dots of a circle 

[corbin]

That is a bit ironic.

 

 

And yeah, I knew the WARNING was just to get attention.  I was mainly mocking the OP's putting that.

[Philip]

$5 says CV reads this thread just because it asks for a genius.

[corbin]

Eh, it'll probably fall down before he sees it .