Find the intersection of a line with a plane: Difference between revisions
Find the intersection of a line with a plane (view source)
Revision as of 13:47, 24 August 2020
, 3 years agoAdded Wren
Thundergnat (talk | contribs) m (Promote to task, lots of examples, little controversy) |
(Added Wren) |
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<pre>The ray intersects the plane at (0.00, -5.00, 5.00)</pre>
=={{header|Wren}}==
{{trans|Kotlin}}
<lang ecmascript>class Vector3D {
construct new(x, y, z) {
_x = x
_y = y
_z = z
}
x { _x }
y { _y }
z { _z }
+(v) { Vector3D.new(_x + v.x, _y + v.y, _z + v.z) }
-(v) { Vector3D.new(_x - v.x, _y - v.y, _z - v.z) }
*(s) { Vector3D.new(s * _x, s * _y, s * _z) }
dot(v) { _x * v.x + _y * v.y + _z * v.z }
toString { "(%(_x), %(_y), %(_z))" }
}
var intersectPoint = Fn.new { |rayVector, rayPoint, planeNormal, planePoint|
var diff = rayPoint - planePoint
var prod1 = diff.dot(planeNormal)
var prod2 = rayVector.dot(planeNormal)
var prod3 = prod1 / prod2
return rayPoint - rayVector*prod3
}
var rv = Vector3D.new(0, -1, -1)
var rp = Vector3D.new(0, 0, 10)
var pn = Vector3D.new(0, 0, 1)
var pp = Vector3D.new(0, 0, 5)
var ip = intersectPoint.call(rv, rp, pn, pp)
System.print("The ray intersects the plane at %(ip).")</lang>
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<pre>
The ray intersects the plane at (0, -5, 5).
</pre>
=={{header|zkl}}==
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