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POCalculating a point in 3D space
 

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  1. POCalculating a point in 3D space
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    <p>I am trying to locate a point in 3D space relative to the origin (0,0,0). I have 3 values to calculate this point with: a rotation in degrees about both the x and y axis as well as a "view distance". Using these values, how can I locate a point in 3D space relative to the origin? I have tried using basic trigonometric functions, but the results seem to be random. The image below gives a visual as to what needs to be done.</p> <p><img src="https://i.stack.imgur.com/RgjB5.png" alt="enter image description here"></p> <ul> <li>'vd' being the "view distance"</li> <li>'c' being a value holder</li> <li>'(x,y,z)' being the coordinate I am trying to find</li> </ul> <p>What I am trying to do is find the point a player is looking at a certain distance away (find a point in the direct line of sight of the player out a certain distance). Keep in mind, the rotations about the x and y axis are constantly changing, but the view distance remains the same. If anyone has any suggestions, methods of how to do this, or needs clarification, please comment/answer below. </p> <p>I am doing this in LWJGL, and the code I am using is as follows:</p> <pre><code> float c = (float)(Math.cos(Math.toRadians(A00.rot.y)) * view_distance); locate.y = (float)(Math.sin(Math.toRadians(rot.y)) * view_distance); locate.x = (float)(Math.cos(Math.toRadians(rot.x)) * c); locate.z = (float)(Math.sin(Math.toRadians(rot.x)) * c); </code></pre> <p><strong>EDIT:</strong> </p> <p>My issue is that this current setup does NOT work for some reason. The math seems legitimate to me, but I must have something wrong somewhere in the actual setup of the graph..</p>
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    1. USCoderTheTyler
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    1. COWait, where are you stuck exactly? What has you confused?
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    2. COSorry I wasn't clear there, the way I am currently doing it doesn't work at all for some reason. It seems to me as though it should, but the coordinates aren't what they are supposed to be.
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    3. COPlease be specific. How is your current code not working? What results are you seeing when you test it vs what results do you expect?
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      1. USHovercraft Full Of Eels
 

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