获取相机位置并将其还原到Forge Viewer中以进行虚拟访问 [英] Get the Camera position and restore it in Forge Viewer for a virtual visit
问题描述
我正在尝试将相机正确放置在 dbId 定义上.
I'm trying to put the camera correctly on dbId defines.
为此，在放置了所需的视图后，我在javascript控制台中运行了此命令:
For this, I run in the javascript console this command after put the view like I want :
JSON.stringify(v.navigation.getCamera());
但是，如果我进行测试并尝试直接加载结果，则会出现错误:
But if I make a test and try to load the result directly, I have an error :
v.navigation.setCamera(JSON.parse("{\"元数据\:{\"版本\:4.3，\"类型\:\"对象\，\"生成器\":\"Ob ...."))
错误: camera.up未定义
换句话说，我该如何手动保存相机位置并恢复它?
In other words, how can I save the camera position manually and restore it?
我尝试使用 setViewFromArray 来完成此操作:
I try to do this with setViewFromArray :
<代码>viewerApp.myCurrentViewer.setViewFromArray([454.76857106060265，96.01886808305997，212.6431659314611，287.11932000223214，167.19053946002487，97.17925996096139，-0.49285695792051964，0.20923119682030047，0.8445793777416518，2.7467811158798283，45.00000125223908，1，1个]);
但是它会放大到物体的远处，甚至超出……
But it zoom to much IN the object and beyond...
我找到了一个带有 restoreState()和 getState()的解决方案，但是它发展很快，而且这些方法似乎没有排队.
I've found a solution with restoreState() and getState() but it moving to fast and these methods do not seem to be queued.
我想对我的建筑物进行虚拟访问...
I would like to make a virtual visit of my building...
我已经尝试使用您的功能.因此，我将其迁移以在Javascript文件中使用它:
I've try to use your function. So I've migrate it to use it in a Javascript file :
var animate = false;
function tweenCameraTo(viewer, state) {
var targetTweenEasing = {
id: TWEEN.Easing.Linear.None,
name: 'Linear'
};
var posTweenEasing = {
id: TWEEN.Easing.Linear.None,
name: 'Linear'
};
var upTweenEasing = {
id: TWEEN.Easing.Linear.None,
name: 'Linear'
};
const targetEnd = new THREE.Vector3(
state.viewport.target[0],
state.viewport.target[1],
state.viewport.target[2])
const posEnd = new THREE.Vector3(
state.viewport.eye[0],
state.viewport.eye[1],
state.viewport.eye[2])
const upEnd = new THREE.Vector3(
state.viewport.up[0],
state.viewport.up[1],
state.viewport.up[2])
const nav = viewer.navigation
const target = new THREE.Vector3().copy(
nav.getTarget())
const pos = new THREE.Vector3().copy(
nav.getPosition())
const up = new THREE.Vector3().copy(
nav.getCameraUpVector())
//nav.setView (posEnd, targetEnd);
//nav.setCameraUpVector(upEnd);
var targetTween = createTween({
easing: targetTweenEasing.id,
onUpdate: (v) => {
nav.setTarget(v)
},
duration: 25000, //targetTweenDuration,
object: target,
to: targetEnd
}).then((r) => {console.log("targetTween");});
var posTween = createTween({
easing: posTweenEasing.id,
onUpdate: (v) => {
nav.setPosition(v)
},
duration: 25000,//posTweenDuration,
object: pos,
to: posEnd
}).then((r) => {console.log("posTween");});
var upTween = createTween({
easing: upTweenEasing.id,
onUpdate: (v) => {
nav.setCameraUpVector(v)
},
duration: 25000, //upTweenDuration,
object: up,
to: upEnd
}).then((r) => {console.log("upTween");});
Promise.all([
targetTween,
posTween,
upTween]).then(() => {
console.log("Fin animation");
animate = false;
})
runAnimation(true);
}
// var animId = null;
var runAnimation = function runAnimation (start) {
if(start || animate){
requestAnimationFrame(runAnimation);
TWEEN.update()
}
}
function createTween (params) {
return new Promise((resolve) => {
console.log("params.to", params.to);
new TWEEN.Tween(params.object)
.to(params.to, params.duration)
.onComplete(() => {resolve();})
.onUpdate(params.onUpdate)
.easing(params.easing)
.start()
})
}
但是，当我尝试使用它时，它会以较大的倍率驱动我，而不是例如在我的建筑物前.我错过了一些东西，但看不到.
But When I try to use it, it drive me in a big zoom, not in front of my building for example. I've miss something but I do not see what.
tweenCameraTo(viewer, {"viewport":{"name":"","eye":[888.5217895507812,-257.4985656738281,576.9136962890625],"target":[262.7552795410156,81.58747863769531,73.64283752441406],"up":[0,0,1],"worldUpVector":[0,0,1],"pivotPoint":[262.7552795410156,81.58747863769531,73.64283752441406],"distanceToOrbit":871.6906720725796,"aspectRatio":2.7507163323782233,"projection":"perspective","isOrthographic":false,"fieldOfView":45.00000125223908}});
tweenCameraTo(viewer, {"viewport":{"name":"","eye":[243.36675374870242,423.8180714045694,167.78380714288494],"target":[303.9841786300087,-347.23884414908446,-234.26269334678466],"up":[0.03614822612815841,-0.4598073869962326,0.8872826340076113],"worldUpVector":[0,0,1],"pivotPoint":[262.7552795410156,81.58747863769531,73.64283752441406],"distanceToOrbit":347.4897746012467,"aspectRatio":2.7507163323782233,"projection":"perspective","isOrthographic":false,"fieldOfView":45.00000125223908}});
推荐答案
This blog can probably help you: Smooth Camera Transitions in the Forge Viewer
/////////////////////////////////////////////////////////
// Smooth camera transition from current state to
// target state using Tween.js
//
/////////////////////////////////////////////////////////
tweenCameraTo (state) {
// tween parameters, specific to my app but easy
// to adapt ...
const {
targetTweenDuration,
posTweenDuration,
upTweenDuration,
targetTweenEasing,
posTweenEasing,
upTweenEasing
} = this.react.getState()
const targetEnd = new THREE.Vector3(
state.viewport.target[0],
state.viewport.target[1],
state.viewport.target[2])
const posEnd = new THREE.Vector3(
state.viewport.eye[0],
state.viewport.eye[1],
state.viewport.eye[2])
const upEnd = new THREE.Vector3(
state.viewport.up[0],
state.viewport.up[1],
state.viewport.up[2])
const nav = this.navigation
const target = new THREE.Vector3().copy(
nav.getTarget())
const pos = new THREE.Vector3().copy(
nav.getPosition())
const up = new THREE.Vector3().copy(
nav.getCameraUpVector())
const targetTween = this.createTween({
easing: targetTweenEasing.id,
onUpdate: (v) => {
nav.setTarget(v)
},
duration: targetTweenDuration,
object: target,
to: targetEnd
})
const posTween = this.createTween({
easing: posTweenEasing.id,
onUpdate: (v) => {
nav.setPosition(v)
},
duration: posTweenDuration,
object: pos,
to: posEnd
})
const upTween = this.createTween({
easing: upTweenEasing.id,
onUpdate: (v) => {
nav.setCameraUpVector(v)
},
duration: upTweenDuration,
object: up,
to: upEnd
})
Promise.all([
targetTween,
posTween,
upTween]).then(() => {
this.animate = false
})
this.runAnimation(true)
}
这篇关于获取相机位置并将其还原到Forge Viewer中以进行虚拟访问的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
