Get Vehicle Wheel Center

Overview

• Node Name: Get Vehicle Wheel Center
• Category: repeat_instant
• File: extensions/flowgraph/nodes/vehicle/vehicleWheels.lua

Computes and outputs the average world-space position of all wheel axis nodes on a vehicle.

Pin Schema

Input Pins

Output Pins

Internals

Key Methods

How It Works

1. Resolves the vehicle by ID or falls back to the player vehicle.
2. Iterates veh:getWheelCount() wheels, reading each wheel's first axis node position via veh:getNodePosition(axisNodes[1]).
3. Accumulates all positions, then divides by count to get the average.
4. Adds the vehicle's world position (veh:getPosition()) since node positions are in local space.
5. Outputs the result as a table-format vec3.

Note: Node positions from getNodePosition() are relative to the vehicle's ref node. The vehicle world position is added to convert to world space.

Usage Example

-- Flowgraph:
-- [Vehicle ID] → vehId → [Get Vehicle Wheel Center]
--                              ↓ wheelCenter → [Ground Level Check]

-- Equivalent GE Lua:
local veh = getPlayerVehicle(0)
local center = vec3(0, 0, 0)
local count = veh:getWheelCount()
for i = 0, count - 1 do
  local axisNodes = veh:getWheelAxisNodes(i)
  center:setAdd(vec3(veh:getNodePosition(axisNodes[1])))
end
center:setScaled(1 / count)
center:setAdd(vec3(veh:getPosition()))

Key Dependencies

• veh:getWheelCount() / veh:getWheelAxisNodes() - wheel axis node access
• veh:getNodePosition() - beam node local positions
• veh:getPosition() - vehicle ref-node world position

See Also

• Align for Coupling (Flowgraph Node) - Related reference
• Apply Velocity to Vehicle (Flowgraph Node) - Related reference
• Boost Vehicle (Flowgraph Node) - Related reference
• FlowGraph Guide - Guide