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Thread: Vector Math
 01272014, 04:30 AM #1▼ dafuq did I do?
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Vector Math
I am running into some trouble with LinePlane intersection, my method works, provided I am perpendicular to the plane I want to intersect. This is caused be the plane equation (with my given x, y, and z coordinates, the equation is Z  1 = 0). So the equation is only relying on the Z value of anything inputted. Is there another way to calculate the equation of a plane that would rely on all axes? Here is my current code:
Java Code:Vector3f A = new Vector3f(0, 0, 1); Vector3f B = new Vector3f(0, 1, 1); Vector3f C = new Vector3f(1, 1, 1); Vector3f v1 = new Vector3f(B.x  A.x, B.y  A.y, B.z  A.z); Vector3f v2 = new Vector3f(C.x  A.x, C.y  A.y, C.z  A.z); float[] i = new float[]{v1.x, v2.x}; float[] j = new float[]{v1.y, v2.y}; float[] k = new float[]{v1.z, v2.z}; float a = (j[0] * k[1])  (j[1] * k[0]); float b = (i[0] * k[1])  (i[1] * k[0]); float c = (i[0] * j[1])  (i[1] * j[0]); float eX = ((a * C.x)); float eY = ((b * C.y)); float eZ = ((c * C.z)); Vector3f v3 = start; Vector3f v4 = new Vector3f(end.x  v3.x, end.y  v3.y, end.z  v3.z); float tX = v4.x, tY = v4.y, tZ = v4.z; float x, y, z; float rem = (((a * v3.x) + eX + (b * v3.y) + eY + (c * v3.z) + eZ)); float t = rem / (tX + tY + tZ); x = v3.x + (tX * t); y = v3.y + (tY * t); z = v3.z + (tZ * t); Vector3f v5 = new Vector3f(x, y, z);
Last edited by zFollette; 01272014 at 04:36 AM.
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 01272014, 12:45 PM #2
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 01272014, 10:07 PM #3▼ dafuq did I do?
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