Calculate point beside (perpendicular) to vehicle

Hello ... as the title says, I want to calc a point perpendicular to vehicle.

I have this code to calculate a point x units forward of vehicle ...

local position = vec3(veh:getPosition())
local forward = vec3(veh:getDirectionVector())
local coordinate = forward * x + position

But how to calc a point x units beside the vehicle?

Much appreciate any help. Cheers!

 

IIRC, there's similar code to determine the vehicle's up vector. Combine the forward vector and the up vector with a dot product, and that should give you a position next to the vehicle.

Edit: sorry, cross product. SineMatic has it right

 

From drivingDynamics\sensors\vehicleData.lua:

Code:

vectorRight = vectorForward:cross(vectorUp)

 

Hey guys, thanks. That help me figure out how to calculate position left or right of vehicle position.

local vecPosition = vec3(veh:getPosition())
local vecForward = vec3(veh:getDirectionVector())
local vecUp = vec3(veh:getDirectionVectorUp())
local vecRight = vecForward:cross(vecUp)​

local lr = (math.random() * 1.2) - 0.6 -- generate a random left/right offset
local target = vecForward * fillSpot + vecPosition -- get inital location on trailer center (which doesn't appear to be centered left/right)
target = vecRight * -0.5 + target --tweak position left
target = vecRight * lr + target -- apply random offset left or right (positive or negative value)​