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three.cad
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checkpoint

master
howard 2021-04-22 14:14:26 -07:00
parent df049a31cc
commit b910181628
7 changed files with 138 additions and 23 deletions
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3
extlib/trackball.js
View File

@ -271,7 +271,8 @@ var TrackballControls = function ( object, domElement ) {
}
mouseChange.multiplyScalar( _eye.length() * scope.panSpeed );
// mouseChange.multiplyScalar( _eye.length() * scope.panSpeed );
mouseChange.multiplyScalar( _eye.length() * 1/577*scope.domElement.clientWidth);
pan.copy( _eye ).cross( scope.object.up ).setLength( mouseChange.x );
pan.add( objectUp.copy( scope.object.up ).setLength( mouseChange.y ) );

16
src/Scene.js
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@ -3,7 +3,7 @@ import * as THREE from '../node_modules/three/src/Three';
import { Sketch } from './Sketch'
import { extrude, flipBufferGeometryNormals } from './extrude'
import { onHover, onPick, clearSelection } from './mouseEvents';
import { _vec2, _vec3, color, awaitSelection, setHover } from './shared'
import { _vec2, _vec3, color, awaitSelection, setHover, custPtMat } from './shared'
import { AxesHelper } from './axes'
@ -58,9 +58,9 @@ export class Scene {
this.camera.layers.enable(3)
const controls = new TrackballControls(this.camera, this.canvas);
controls.target.set(0, 0, 0);
controls.update();
this.controls = new TrackballControls(this.camera, this.canvas);
this.controls.target.set(0, 0, 0);
this.controls.update();
@ -82,7 +82,8 @@ export class Scene {
new THREE.BufferGeometry().setAttribute('position',
new THREE.Float32BufferAttribute(3, 3)
),
pointMaterial.clone()
// pointMaterial.clone()
custPtMat.clone()
)
freePt.matrixAutoUpdate = false
@ -149,8 +150,8 @@ export class Scene {
this.awaitSelection = awaitSelection.bind(this);
this.obj3d.addEventListener('change', this.render);
controls.addEventListener('change', this.render);
controls.addEventListener('start', this.render);
this.controls.addEventListener('change', this.render);
this.controls.addEventListener('start', this.render);
window.addEventListener('resize', this.render);
if (process.env.NODE_ENV !== 'production') {
@ -353,6 +354,7 @@ function render() {
this.camera.right = canvas.clientWidth / canvas.clientHeight;
this.camera.updateProjectionMatrix();
this.controls.handleResize()
Object.assign(this.rect, this.canvas.getBoundingClientRect().toJSON())
}

16
src/Sketch.js
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@ -2,7 +2,7 @@
import * as THREE from '../node_modules/three/src/Three';
import { _vec2, _vec3, raycaster, awaitSelection, ptObj, setHover } from './shared'
import { _vec2, _vec3, raycaster, awaitSelection, ptObj, setHover,custPtMat } from './shared'
import { drawOnClick1, drawOnClick2, drawPreClick2, drawOnClick3, drawPreClick3, drawClear, drawPoint } from './drawEvents'
import { onHover, onDrag, onPick, onRelease, clearSelection } from './mouseEvents'
@ -47,8 +47,20 @@ class Sketch {
this.constraints = new Map()
this.c_id = 1;
this.obj3d.add(new THREE.Group());
this.helpersGroup = new THREE.Group()
this.obj3d.add(this.helpersGroup);
// this.freePt = new THREE.Points(
// new THREE.BufferGeometry().setAttribute('position',
// new THREE.Float32BufferAttribute(3, 3)
// ),
// custPtMat.clone()
// )
// this.freePt.matrixAutoUpdate = false
// this.freePt.visible = false
// this.freePt.userData.type = 'selpoint'
// this.helpersGroup.add(this.freePt);
this.obj3d.add(new THREE.Group());
this.geomStartIdx = this.obj3d.children.length
this.obj3d.userData.geomStartIdx = this.geomStartIdx
this.dimGroup = this.obj3d.children[this.geomStartIdx - 1]

28
src/drawEvents.js
View File

@ -3,15 +3,26 @@ import { drawArc, drawArc2, drawArc3, drawArc4 } from './drawArc'
import { drawLine, drawLine2 } from './drawLine'
import { ptObj } from './shared'
export function drawOnClick1(e) {
if (e.buttons !== 1) return
export function drawOnClick1(e, loc) {
if (!loc && e.buttons !== 1) return
// this.canvas.removeEventListener('pointerdown', this.drawOnClick1)
this.canvas.addEventListener('pointermove', this.drawPreClick2)
this.canvas.addEventListener('pointerdown', this.drawOnClick2, { once: true })
const mouseLoc = this.getLocation(e).toArray();
let mouseLoc
if (loc) {
mouseLoc = loc
} else if (this.hovered.length && !this.subsequent) {
mouseLoc = this.hovered[this.hovered.length - 1].geometry.attributes.position.array
} else {
mouseLoc = this.getLocation(e).toArray();
}
// this.mode allow alow following modes to create new obj3ds
if (this.mode == "line") {
@ -83,6 +94,7 @@ export function drawOnClick2(e) {
element.layers.enable(2)
});
let modLoc
if (this.hovered.length) {
this.constraints.set(++this.c_id,
[
@ -94,14 +106,22 @@ export function drawOnClick2(e) {
this.toPush[1].userData.constraints.push(this.c_id)
this.updateOtherBuffers()
modLoc = this.hovered[this.hovered.length - 1].geometry.attributes.position.array
}
if (this.mode == "line") {
this.subsequent = true
if (modLoc) {
drawLine2(modLoc, this.toPush)
this.drawOnClick1(null, modLoc)
} else {
this.drawOnClick1(e)
}
} else if (this.mode == "arc") {
if (modLoc) {
drawArc2(modLoc, this.toPush)
}
drawArc3(this.toPush[0], this.toPush[1])

4
src/extrude.js
View File

@ -41,7 +41,7 @@ export function extrude(sketch, depth) {
linkedObj[1][nextIdx]
)
]
if (d == children[2]) {
if (d == children[sketch.geomStartIdx + 1]) {
// console.log('pair found')
};
findTouching(d)
@ -58,7 +58,7 @@ export function extrude(sketch, depth) {
if (c == -1) continue;
const d = children[objIdx.get(c)]
if (d == node) continue;
if (d == children[2]) {
if (d == children[sketch.geomStartIdx + 1]) {
// console.log('loop found')
} else {
// if (!visited.has(d)) {

31
src/mouseEvents.js
View File

@ -24,6 +24,8 @@ export function onHover(e) {
raycaster.layers.set(1)
hoverPts = raycaster.intersectObjects(this.obj3d.children, true)
} else {
// this.freePt.visible = false // hide freept before each redraw
this.scene.selpoints[0].visible = false // hide selpoint[0] before each redraw
raycaster.layers.set(2)
// intersectObjects has side effect of updating bounding spheres
// which may lead to unexpected results if you leave boundspheres un-updated
@ -77,7 +79,7 @@ export function onHover(e) {
if (this.obj3d.userData.type != 'sketch' && obj.userData.type == 'point') {
ptLoc = obj.geometry.attributes.position.array
.slice(
3 * hoverts[idx[x]].index,
3 * hoverPts[idx[x]].index,
3 * hoverPts[idx[x]].index + 3
)
this.selpoints[0].geometry.attributes.position.array.set(ptLoc)
@ -88,6 +90,28 @@ export function onHover(e) {
obj = hoverPts[idx[x]].index
}
if (this.obj3d.userData.type == 'sketch' && obj.userData.type == 'point') {
// ptLoc = obj.geometry.attributes.position.array
// .slice(
// 3 * hoverPts[idx[x]].index,
// 3 * hoverPts[idx[x]].index + 3
// )
// this.freePt.geometry.attributes.position.array.set(ptLoc)
// this.freePt.matrix = obj.parent.matrix
// this.freePt.geometry.attributes.position.needsUpdate = true
// this.freePt.visible = true
ptLoc = obj.geometry.attributes.position.array
.slice(
3 * hoverPts[idx[x]].index,
3 * hoverPts[idx[x]].index + 3
)
this.scene.selpoints[0].geometry.attributes.position.array.set(ptLoc)
this.scene.selpoints[0].matrix = obj.parent.matrix
this.scene.selpoints[0].geometry.attributes.position.needsUpdate = true
this.scene.selpoints[0].visible = true
}
this.hovered.push(obj)
}
@ -125,6 +149,7 @@ export function onPick(e) {
let obj = this.hovered[this.hovered.length - 1]
// if (sc.selected.includes(obj3d)) continue
console.log(obj, 'heere')
if (typeof obj != 'object') { // special sketchplace define pts in feature mode
const pp = this.selpoints[this.fptIdx % 3 + 1]
@ -205,10 +230,12 @@ export function onPick(e) {
for (let x = 0; x < this.selected.length; x++) {
const obj = this.selected[x]
setHover(obj, 0)
if (obj.userData.type == 'selpoint') {
obj.visible = false
} else {
setHover(obj, 0)
}
// dont think this would have been possible without redux

55
src/shared.js
View File

@ -179,8 +179,61 @@ function setHover(obj, state, meshHover = true) {
}
const vertexShader = `
uniform float edgeSize;
uniform float pointWidth;
void main() {
vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );
gl_PointSize = (pointWidth + edgeSize);
gl_Position = projectionMatrix * mvPosition;
}
`
const fragmentShader = `
uniform vec3 color;
uniform vec3 edgeColor;
uniform float edgeSize;
uniform float pointWidth;
void main() {
gl_FragColor = vec4(color, 1.0);
// distance = len(x: [-1, 1], y: [-1, 1])
float distance = length(2.0 * gl_PointCoord - 1.0);
// pixels [0, ~15/20]
float totalWidth = pointWidth + edgeSize;
float edgeStart = pointWidth;
float edgeEnd = pointWidth + 2.0;
// [edgeStart, edgeEnd] -> [0, 1]
float sEdge = smoothstep(edgeStart, edgeEnd, distance * totalWidth);
// transition from edgeColor to color along the edge
gl_FragColor = ( vec4(edgeColor, 1.0) * sEdge) + ((1.0 - sEdge) * gl_FragColor);
if (distance > 1.0) {
discard;
}
}
`
const pixelRatio = 2
const custPtMat = new THREE.ShaderMaterial({
uniforms: {
color: { value: new THREE.Color(0xff0000) },
edgeColor: { value: new THREE.Color(0x990000) },
pointWidth: { value: 4 * pixelRatio },
edgeSize: { value: 4 * pixelRatio },
},
vertexShader,
fragmentShader,
// depthTest:false
});
window.rc = raycaster
export { lineMaterial, pointMaterial, _vec2, _vec3, raycaster, color, hoverColor, ptObj, lineObj, awaitSelection, setHover }
export { lineMaterial, pointMaterial, custPtMat, _vec2, _vec3, raycaster, color, hoverColor, ptObj, lineObj, awaitSelection, setHover }