I need rotate arrow with Jquery-rotate, but i dont know cursor's angle :( I try calculate it, but script not work.  I want result like this http://www.lonhosford.com/content/html5/canvas/rotate_to_mouse.html  <script type="text/javascript&...
I want to get a simple solution to calculate the angle of a line (like a pointer of a clock).  I have 2 points:  cX, cY - the center of the line. eX, eY - the end of the line.  The result is angle (0 <= a < 360).   Which function is able to pro...
I would like to get an angle in terms of 360 degrees... for my game, I need to know which direction the player is heading in...     The code here gets the proper angles, but only in terms of 90 degree increments: (meaning, when I click in upper left...
I have rendered the svg circle using start and endAngle. It was worked fine. But when i render the complete circle(startAngle as 70 and endAngle as 70) the output is huge different(except the 0, 90, 180, 270). what i made wrongly for this code?...
Simple javascript angle question:  Which direction do angles go in in javascript?  Is it:     90 180    0    270   or     270 180    0    90   or something else?  I'm aware that javascript uses radians, I used degrees for illustraion....
I'm using a Reach RS+ device to capture GPS position data as well as IMU data (roll, pitch and yaw); see the "Point Collection" image on the manufacturer's website. I'm trying to determine the GPS coordinates of the bottom point (...
I did vector stuff for already 13 years now, but am still struggling with the way three.js handles things. So what I like to do is best described with a fan that always faces the camera and, of course, rotates.  This is how I achieved this in another...
I am making some very simple ui (health / power) bar, i decided to go for radial bar made of two halves of circle (red / blue). In order to calculate angles for both halves i use very simple tool:  var radians = function(angle) {     return (Math.PI...
I'm creating an analog clock input method that users can use to pick a time. Users can click on the inner circle to set the short hand (hour) and can click on the outer circle to set the long hand (minute).    The problem is that users are free t...

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