119 lines
4.4 KiB
JavaScript
119 lines
4.4 KiB
JavaScript
xrf.frag.defaultPredefinedView = (opts) => {
|
|
let {scene,model} = opts;
|
|
let frag = {}
|
|
xrf.Parser.parse("#","",frag)
|
|
xrf.frag.updatePredefinedView({frag,model,scene})
|
|
}
|
|
|
|
xrf.frag.updatePredefinedView = (opts) => {
|
|
let {frag,scene,model,renderer} = opts
|
|
|
|
// spec: https://xrfragment.org/#Selection%20of%20interest
|
|
const selectionOfInterest = (frag,scene,mesh) => {
|
|
let id = frag.string
|
|
let oldSelection
|
|
if(!id) return id // important: ignore empty strings
|
|
// Selection of Interest if predefined_view matches object name
|
|
if( mesh.visible && mesh.material){
|
|
xrf.emit('focus',{...opts,frag})
|
|
.then( () => {
|
|
const color = new THREE.Color();
|
|
const colors = []
|
|
let from = new THREE.Vector3()
|
|
|
|
let getCenterPoint = (mesh) => {
|
|
var geometry = mesh.geometry;
|
|
geometry.computeBoundingBox();
|
|
var center = new THREE.Vector3();
|
|
geometry.boundingBox.getCenter( center );
|
|
mesh.localToWorld( center );
|
|
return center;
|
|
}
|
|
|
|
xrf.camera.updateMatrixWorld(true); // always keeps me diving into the docs :]
|
|
xrf.camera.getWorldPosition(from)
|
|
from.y -= 0.5 // originate from the heart chakra! :p
|
|
const points = [from, getCenterPoint(mesh) ]
|
|
const geometry = new THREE.BufferGeometry().setFromPoints( points );
|
|
let line = new THREE.Line( geometry, xrf.focusLine.material );
|
|
line.isXRF = true
|
|
line.computeLineDistances();
|
|
xrf.focusLine.lines.push(line)
|
|
xrf.focusLine.points.push(from)
|
|
xrf.focusLine.opacity = 1
|
|
scene.add(line)
|
|
})
|
|
}
|
|
}
|
|
|
|
//// spec: https://xrfragment.org/#predefined_view
|
|
//const predefinedView = (frag,scene,mesh) => {
|
|
// let id = frag.string || frag.fragment
|
|
// id = `#${id}`
|
|
// if( id == '##' ) id = '#'; // default predefined view
|
|
// if( !id ) return // prevent empty matches
|
|
// if( mesh.userData[id] ){ // get alias
|
|
// frag = xrf.URI.parse( mesh.userData[id], xrf.XRF.NAVIGATOR | xrf.XRF.PV_OVERRIDE | xrf.XRF.METADATA )
|
|
// xrf.emit('predefinedView',{...opts,frag})
|
|
// .then( () => {
|
|
// for ( let k in frag ){
|
|
// let opts = {frag, model, camera: xrf.camera, scene: xrf.scene, renderer: xrf.renderer, THREE: xrf.THREE }
|
|
// if( frag[k].is( xrf.XRF.PV_EXECUTE ) && scene.XRF_PV_ORIGIN != k ){ // cyclic detection
|
|
// highlightInScene(frag[k],scene) // recurse predefined views
|
|
// }
|
|
// }
|
|
// })
|
|
// }
|
|
//}
|
|
|
|
const highlightInScene = (v,scene) => {
|
|
if( !scene ) return
|
|
let remove = []
|
|
let id = v.string || v.fragment
|
|
if( id == '#' ) return
|
|
let match = xrf.XRWG.match(id)
|
|
// erase previous lines
|
|
xrf.focusLine.lines.map( (line) => scene.remove(line) )
|
|
xrf.focusLine.points = []
|
|
xrf.focusLine.lines = []
|
|
|
|
scene.traverse( (n) => n.selection ? remove.push(n) : false )
|
|
remove.map( (n) => scene.remove(n.selection) )
|
|
// create new selections
|
|
match.map( (w) => {
|
|
if( w.key == `#${id}` ){
|
|
if( w.value && w.value[0] == '#' ){
|
|
// if value is alias, execute fragment value
|
|
xrf.hashbus.pub( w.value, xrf.model, xrf.XRF.METADATA | xrf.XRF.PV_OVERRIDE | xrf.XRF.NAVIGATOR )
|
|
}
|
|
}
|
|
w.nodes.map( (mesh) => selectionOfInterest( v, scene, mesh ) )
|
|
})
|
|
}
|
|
|
|
// if this query was triggered by an src-value, lets filter it
|
|
const isSRC = opts.embedded && opts.embedded.fragment == 'src'
|
|
if( !isSRC ){ // spec : https://xrfragment.org/#src
|
|
for ( let i in frag ) {
|
|
let v = frag[i]
|
|
if( v.is( xrf.XRF.PV_EXECUTE ) ){
|
|
scene.XRF_PV_ORIGIN = v.string
|
|
// wait for nested instances to arrive at the scene ?
|
|
highlightInScene(v,scene)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// react to enduser typing url
|
|
xrf.addEventListener('hash', (opts) => {
|
|
let frag = xrf.URI.parse( opts.hash, xrf.XRF.NAVIGATOR | xrf.XRF.PV_OVERRIDE | xrf.XRF.METADATA )
|
|
xrf.frag.updatePredefinedView({frag,scene:xrf.scene})
|
|
})
|
|
|
|
// clicking href url with predefined view
|
|
xrf.addEventListener('href', (opts) => {
|
|
if( !opts.click || opts.xrf.string[0] != '#' ) return
|
|
let frag = xrf.URI.parse( opts.xrf.string, xrf.XRF.NAVIGATOR | xrf.XRF.PV_OVERRIDE | xrf.XRF.METADATA )
|
|
xrf.frag.updatePredefinedView({frag,scene:xrf.scene,href:opts.xrf})
|
|
})
|