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@ -4679,3 +4679,42 @@ function UTILS.GetRandomClearZoneCoordinate(Zone, PosRadius, NumPositions)
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return nil
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end
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--- Find the point on the radius of a circle closest to a point outside of the radius.
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-- @param DCS#Vec2 Vec1 Simple Vec2 marking the middle of the circle.
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-- @param #number Radius The radius of the circle.
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-- @param DCS#Vec2 Vec2 Simple Vec2 marking the point outside of the circle.
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-- @return DCS#Vec2 Vec2 point on the radius.
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function UTILS.FindNearestPointOnCircle(Vec1,Radius,Vec2)
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local r = Radius
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local cx = Vec1.x or 1
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local cy = Vec1.y or 1
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local px = Vec2.x or 1
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local py = Vec2.y or 1
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-- Berechne den Vektor vom Mittelpunkt zum externen Punkt
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local dx = px - cx
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local dy = py - cy
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-- Berechne die Länge des Vektors
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local dist = math.sqrt(dx * dx + dy * dy)
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-- Wenn der Punkt im Mittelpunkt liegt, wähle einen Punkt auf der X-Achse
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if dist == 0 then
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return {x=cx + r, y=cy}
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end
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-- Normalisiere den Vektor (richtungsweise Vektor mit Länge 1)
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local norm_dx = dx / dist
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local norm_dy = dy / dist
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-- Berechne den Punkt auf dem Rand des Kreises
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local qx = cx + r * norm_dx
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local qy = cy + r * norm_dy
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local shift_factor = 1
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qx = qx + shift_factor * norm_dx
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qy = qy + shift_factor * norm_dy
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return {x=qx, y=qy}
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end
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