Convert between Three.js's euler rotation and Openscad's camera #236

Merged
Irev-Dev merged 1 commits from kurt/235 into main 2021-03-12 09:56:57 +01:00

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@@ -2,7 +2,6 @@ import { IdeContext } from 'src/components/IdeToolbarNew'
import { useRef, useState, useEffect, useContext, useMemo } from 'react'
import { Canvas, extend, useFrame, useThree } from 'react-three-fiber'
import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls'
import { Vector3 } from 'three'
extend({ OrbitControls })
@@ -13,21 +12,33 @@ function Controls({ onCameraChange }) {
// init camera position
camera.position.x = 12
camera.position.y = 12
// Euler rotation can be problematic since order matters
// We want it to rotate around the z or vertical axis first then the x axis
// in Three Y is the vertical axis (Z for openscad)
camera.rotation._order = 'YXZ'
if (controls.current) {
const callback = ({ target }) => {
// TODO figure out Three's rotations to make it match openscad's camera
const vector = new Vector3()
camera.getWorldDirection(vector)
console.log(Object.values(vector).map((val) => (val * 180) / Math.PI))
const { _x, _y, _z } = target.object.rotation
const rad2Deg = 180 / Math.PI
const [x, y, z] = [_x * rad2Deg, -_y * rad2Deg, _z * rad2Deg]
console.log({ y, z, x })
console.log(target, 'target')
const getRotations = () => {
const { x, y, z } = target.object.rotation
const rad2Deg = 180 / Math.PI
const scadX = (x + Math.PI / 2) * rad2Deg
const scadZ = y * rad2Deg
const scadY = z * rad2Deg
return [scadX, scadY, scadZ]
}
const getPositions = () => {
const { x: scadX, y: scadZ, z: negScadY } = target.object.position
const scale = 10 // I'm not sure why this is exactly 10
const scadY = -negScadY
return [scadX * scale, scadY * scale, scadZ * scale]
}
const [rx, ry, rz] = getRotations()
const [x, y, z] = getPositions()
onCameraChange({
position: target.object.position,
rotation: { x, y, z },
position: { x, y, z },
rotation: { x: rx, y: ry, z: rz },
})
}
controls.current.addEventListener('end', callback)
@@ -52,21 +63,10 @@ function Box(props) {
// This reference will give us direct access to the mesh
const mesh = useRef()
// Set up state for the hovered and active state
const [hovered, setHover] = useState(false)
const [active, setActive] = useState(false)
return (
<mesh
{...props}
ref={mesh}
scale={[1, 1, 1]}
onClick={(event) => setActive(!active)}
onPointerOver={(event) => setHover(true)}
onPointerOut={(event) => setHover(false)}
>
<boxBufferGeometry args={[10, 10, 10]} />
<meshStandardMaterial color={hovered ? 'hotpink' : 'orange'} />
<mesh {...props} ref={mesh} scale={[1, 1, 1]}>
<boxBufferGeometry args={[props.size, props.size, props.size]} />
<meshStandardMaterial color={props.color} />
</mesh>
)
}
@@ -126,7 +126,10 @@ const IdeViewer = () => {
/>
<ambientLight />
<pointLight position={[15, 5, 10]} />
<Box position={[0, 0, 0]} />
<Box position={[0, 0, 0]} size={10} color="orange" />
<Box position={[0, 5, 0]} size={1} color="cyan" />
<Box position={[0, 0, 5]} size={1} color="magenta" />
<Box position={[5, 0, 0]} size={1} color="hotpink" />
</Canvas>
</div>
</div>