在 Codeigniter 中使用 Three.js 将动态图像与 HTML5 WebGL 360 度全景查看器集成
Integrate Dynamic Images with HTML5 WebGL 360 degrees panorama viewer with Three.js in Codeigniter
已找到 Panorama 360 查看器 HERE and HERE are easy to use if you just copy and paste the code available in their documentation and place the 360 images right next to the index file and open it in browser. However is there a way to Dynamically bring images from Database and render the 360 images in the view like this (link)
全景查看器文件中给出的代码像这样获取全景阵列中的图像
var panoramasArray = ["01.jpg","02.jpg","03.jpg","04.jpg","05.jpg","06.jpg"];
var panoramaNumber = Math.floor(Math.random()*panoramasArray.length);
如果我们只能显示一张图片怎么办?有没有人尝试过从数据库中动态获取图像并在其中呈现带有 360 查看器的视图?。我看到了一个未回答的话题 here,但没有人回答这个问题。
对于许多 Codeigniter 开发人员和那些一直在开发房地产网站的人来说,想要或已经尝试但未能将 360 图像查看器集成到他们的网站中。这是我到目前为止所做和学习的练习。
如何运作?
- 上传 360 图片
- 从数据库获取 360 图像
- 显示/渲染视图
我们需要什么?
- 控制器中上传 360 图片的功能
- 模型中用于保存和获取 360 度图像列表的函数
- 调用视图显示图像的函数。
- 一个显示 360 图像的标记页面,其中包含所有 JavaScript。
这是我上传 360 度图像的视图,它只是一个带有文件输入字段的表单。
public function upload_360_images()
{
if($this->session->userdata['id'] && $this->session->userdata['type']=='user')
{
if($_FILES)
{
if(isset($_FILES['files'])){
$data['errors']= array();
$extensions = array("jpeg","jpg","png");
foreach($_FILES['files']['tmp_name'] as $key => $tmp_name ){
$file_name = $key.$_FILES['files']['name'][$key];
$file_size =$_FILES['files']['size'][$key];
$file_tmp =$_FILES['files']['tmp_name'][$key];
$file_type=$_FILES['files']['type'][$key];
/*$file_ext=explode('.',$_FILES['image']['name'][$key]) ;
$file_ext=end($file_ext);*/
$i=1;
if($file_size > 7097152){
$data['errors'][$i]='File '.$i.' size must be less than 7 MB';
$i++;
}
$desired_dir="uploads";
if(empty($data['errors'])==true){
if(is_dir($desired_dir)==false){
mkdir("$desired_dir", 0700); // Create directory if it does not exist
}
if(is_dir("$desired_dir/".$file_name)==false){
move_uploaded_file($file_tmp,"uploads/".$file_name);
$this->post_model->add360Image('property_360_images',$file_name,$this->uri->segment(3));
}else{ //rename the file if another one exist
$new_dir="uploads/".$file_name.time();
rename($file_tmp,$new_dir) ;
}
}else{
$data['contact']=$this->admin_model->getContactDetails();
$data['images']=$this->post_model->getProperty360Images($this->uri->segment(3));
$data['title']='My Profile Image';
$this->load->view('site/static/head',$data);
$this->load->view('site/static/header');
$this->load->view('site/content/upload_360_images');
$this->load->view('site/static/footer');
$this->load->view('site/static/footer_links');
}
}
if(empty($data['errors']))
{
redirect(base_url().'dashboard');
}
else
{
$data['contact']=$this->admin_model->getContactDetails();
$data['images']=$this->post_model->getProperty360Images($this->uri->segment(3));
$data['title']='My Profile Image';
$this->load->view('site/static/head',$data);
$this->load->view('site/static/header');
$this->load->view('site/content/upload_360_images');
$this->load->view('site/static/footer');
$this->load->view('site/static/footer_links');
}
}
}
else
{
$data['contact']=$this->admin_model->getContactDetails();
$data['images']=$this->post_model->getProperty360Images($this->uri->segment(3));
$data['title']='My Profile Image';
$this->load->view('site/static/head',$data);
$this->load->view('site/static/header');
$this->load->view('site/content/upload_360_images');
$this->load->view('site/static/footer');
$this->load->view('site/static/footer_links');
}
}
else
{
redirect(base_url().'user/login');
}
}
以上是我的控制器功能,它上传 360 图像并将名称保存在数据库中。没什么特别的,我没有使用 CI 上传库
这是我的数据库Table 用于存储 360 图片名称
public function property_detail()
{
$id=$this->uri->segment(3);
$this->property_model->incPageViewById($id);
$data['contact']=$this->admin_model->getContactDetails();
$data['section_fields']=$this->admin_model->getSectionFields('property_sections');
$data['property']=$this->property_model->getPropertyById($id);
// Get 360 Images list of this property based on ID
$data['images360']=$this->post_model->getProperty360Images($id);
$data['profile']=$this->property_model->getFieldsById($id);
$data['types']=$this->admin_model->getAll('property_types');
$data['similar']=$this->property_model->getSimilarPropertiesById($data['property'][0]['posted_by']);
$data['popular']=$this->property_model->getAllProperties(0,0);
if($this->isLoggedIn())
{
$data['favorites']=$this->property_model->getMyFavorites($this->session->userdata['id']);
$data['is_favorite']=$this->property_model->isFavorite($id,$this->session->userdata['id']);
}
$data['posted_by']=$this->property_model->getPostedByDetails($id);
$data['comments']=$this->property_model->getCommentsById($id);
if($_POST)
{
$config=array(
array(
'field' => 'name',
'label' => 'Name',
'rules' => 'trim|required',
),
array(
'field' => 'email',
'label' => 'Email',
'rules' => 'trim|required',
),
array(
'field' => 'comment',
'label' => 'Comment',
'rules' => 'trim|required',
)
);
$this->form_validation->set_rules($config);
if($this->form_validation->run()==false)
{
$data['errors']=validation_errors();
$data['title']=$data['property'][0]['title'];
$this->load->view('site/static/head',$data);
$this->load->view('site/static/header');
$this->load->view('site/content/property_detail');
$this->load->view('site/static/footer');
$this->load->view('site/static/footer_links');
}
else
{
$this->property_model->addComment($_POST,$id);
$data['success']='Comment posted successfully';
$data['comments']=$this->property_model->getCommentsById($id);
$data['title']=$data['property'][0]['title'];
$this->load->view('site/static/head',$data);
$this->load->view('site/static/header');
$this->load->view('site/content/property_detail');
$this->load->view('site/static/footer');
$this->load->view('site/static/footer_links');
}
}
else
{
$data['title']=$data['property'][0]['title'];
$this->load->view('site/static/head',$data);
$this->load->view('site/static/header');
$this->load->view('site/content/property_detail');
$this->load->view('site/static/footer');
$this->load->view('site/static/footer_links');
}
}
上面是控制器函数,它从模型中获取所有数据并调用视图来呈现页面。您可以在控制器函数中看到以下行
// Get 360 Images list of this property based on ID
$data['images360']=$this->post_model->getProperty360Images($id);
从模型中获取 360 度图像列表。现在,在 属性 详细视图中,我再次调用在
<?php if(count($images360)>0){
?><h3>360 View</h3><?php
for($i=0;$i<count($images360);$i++){?>
<iframe src = "https://duperty.com/realestate/load360/showImage/<?php echo $images360[$i]['image']?>" width = "100%" height = "540" frameborder = "0" scrolling = "no"></iframe>
<?php }
}?>
我有另一个带有函数 showImage 的控制器 load360,它接收图像名称作为参数并调用显示 360 度图像的视图
class Load360 extends CI_Controller {
function __construct()
{
parent::__construct();
}
public function showImage()
{
header("cache-Control: no-store, no-cache, must-revalidate");
header("cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");
$data['image']=$this->uri->segment(3);
//echo $data['image'];exit;
$this->load->view('site/content/show360',$data);
}
}
在我在这里调用的 show360 视图中,我只是将图像变量与图像路径一起回显。
<html>
<head>
<style>
body{
margin: 0;
}
canvas {
height: 100%;
width: 100%;
}
</style>
<script src="//cdnjs.cloudflare.com/ajax/libs/three.js/r69/three.min.js"></script>
</head>
<body>
<script>
var manualControl = false;
var longitude = 0;
var latitude = 0;
var savedX;
var savedY;
var savedLongitude;
var savedLatitude;
// panoramas background
var panoramasArray = ["<?php echo base_url().'uploads/'.$image;?>"];
var panoramaNumber = Math.floor(Math.random()*panoramasArray.length);
// setting up the renderer
renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
// creating a new scene
var scene = new THREE.Scene();
// adding a camera
//var camera = new THREE.PerspectiveCamera(35, window.innerWidth / window.innerHeight, 0.5, 500);
var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 1, 1000);
camera.target = new THREE.Vector3(0, 0, 0);
// creation of a big sphere geometry
var sphere = new THREE.SphereGeometry(100, 100, 40);
sphere.applyMatrix(new THREE.Matrix4().makeScale(-1, 1, 1));
// creation of the sphere material
var sphereMaterial = new THREE.MeshBasicMaterial();
sphereMaterial.map = THREE.ImageUtils.loadTexture(panoramasArray[panoramaNumber])
// geometry + material = mesh (actual object)
var sphereMesh = new THREE.Mesh(sphere, sphereMaterial);
scene.add(sphereMesh);
// listeners
document.addEventListener("mousedown", onDocumentMouseDown, false);
document.addEventListener("mousemove", onDocumentMouseMove, false);
document.addEventListener("mouseup", onDocumentMouseUp, false);
render();
function render(){
requestAnimationFrame(render);
if(!manualControl){
longitude += 0.1;
}
// limiting latitude from -85 to 85 (cannot point to the sky or under your feet)
latitude = Math.max(-85, Math.min(85, latitude));
// moving the camera according to current latitude (vertical movement) and longitude (horizontal movement)
camera.target.x = 500 * Math.sin(THREE.Math.degToRad(90 - latitude)) * Math.cos(THREE.Math.degToRad(longitude));
camera.target.y = 500 * Math.cos(THREE.Math.degToRad(90 - latitude));
camera.target.z = 500 * Math.sin(THREE.Math.degToRad(90 - latitude)) * Math.sin(THREE.Math.degToRad(longitude));
camera.lookAt(camera.target);
// calling again render function
renderer.render(scene, camera);
}
// when the mouse is pressed, we switch to manual control and save current coordinates
function onDocumentMouseDown(event){
event.preventDefault();
manualControl = true;
savedX = event.clientX;
savedY = event.clientY;
savedLongitude = longitude;
savedLatitude = latitude;
}
// when the mouse moves, if in manual contro we adjust coordinates
function onDocumentMouseMove(event){
if(manualControl){
longitude = (savedX - event.clientX) * 0.1 + savedLongitude;
latitude = (event.clientY - savedY) * 0.1 + savedLatitude;
}
}
// when the mouse is released, we turn manual control off
function onDocumentMouseUp(event){
manualControl = false;
}
// pressing a key (actually releasing it) changes the texture map
document.onkeyup = function(event){
panoramaNumber = (panoramaNumber + 1) % panoramasArray.length
sphereMaterial.map = THREE.ImageUtils.loadTexture(panoramasArray[panoramaNumber])
}
</script>
</body>
</html>
工作完成。您可以在以下链接中查看视图是如何呈现的
已找到 Panorama 360 查看器 HERE and HERE are easy to use if you just copy and paste the code available in their documentation and place the 360 images right next to the index file and open it in browser. However is there a way to Dynamically bring images from Database and render the 360 images in the view like this (link)
全景查看器文件中给出的代码像这样获取全景阵列中的图像
var panoramasArray = ["01.jpg","02.jpg","03.jpg","04.jpg","05.jpg","06.jpg"];
var panoramaNumber = Math.floor(Math.random()*panoramasArray.length);
如果我们只能显示一张图片怎么办?有没有人尝试过从数据库中动态获取图像并在其中呈现带有 360 查看器的视图?。我看到了一个未回答的话题 here,但没有人回答这个问题。
对于许多 Codeigniter 开发人员和那些一直在开发房地产网站的人来说,想要或已经尝试但未能将 360 图像查看器集成到他们的网站中。这是我到目前为止所做和学习的练习。
如何运作?
- 上传 360 图片
- 从数据库获取 360 图像
- 显示/渲染视图
我们需要什么?
- 控制器中上传 360 图片的功能
- 模型中用于保存和获取 360 度图像列表的函数
- 调用视图显示图像的函数。
- 一个显示 360 图像的标记页面,其中包含所有 JavaScript。
public function upload_360_images()
{
if($this->session->userdata['id'] && $this->session->userdata['type']=='user')
{
if($_FILES)
{
if(isset($_FILES['files'])){
$data['errors']= array();
$extensions = array("jpeg","jpg","png");
foreach($_FILES['files']['tmp_name'] as $key => $tmp_name ){
$file_name = $key.$_FILES['files']['name'][$key];
$file_size =$_FILES['files']['size'][$key];
$file_tmp =$_FILES['files']['tmp_name'][$key];
$file_type=$_FILES['files']['type'][$key];
/*$file_ext=explode('.',$_FILES['image']['name'][$key]) ;
$file_ext=end($file_ext);*/
$i=1;
if($file_size > 7097152){
$data['errors'][$i]='File '.$i.' size must be less than 7 MB';
$i++;
}
$desired_dir="uploads";
if(empty($data['errors'])==true){
if(is_dir($desired_dir)==false){
mkdir("$desired_dir", 0700); // Create directory if it does not exist
}
if(is_dir("$desired_dir/".$file_name)==false){
move_uploaded_file($file_tmp,"uploads/".$file_name);
$this->post_model->add360Image('property_360_images',$file_name,$this->uri->segment(3));
}else{ //rename the file if another one exist
$new_dir="uploads/".$file_name.time();
rename($file_tmp,$new_dir) ;
}
}else{
$data['contact']=$this->admin_model->getContactDetails();
$data['images']=$this->post_model->getProperty360Images($this->uri->segment(3));
$data['title']='My Profile Image';
$this->load->view('site/static/head',$data);
$this->load->view('site/static/header');
$this->load->view('site/content/upload_360_images');
$this->load->view('site/static/footer');
$this->load->view('site/static/footer_links');
}
}
if(empty($data['errors']))
{
redirect(base_url().'dashboard');
}
else
{
$data['contact']=$this->admin_model->getContactDetails();
$data['images']=$this->post_model->getProperty360Images($this->uri->segment(3));
$data['title']='My Profile Image';
$this->load->view('site/static/head',$data);
$this->load->view('site/static/header');
$this->load->view('site/content/upload_360_images');
$this->load->view('site/static/footer');
$this->load->view('site/static/footer_links');
}
}
}
else
{
$data['contact']=$this->admin_model->getContactDetails();
$data['images']=$this->post_model->getProperty360Images($this->uri->segment(3));
$data['title']='My Profile Image';
$this->load->view('site/static/head',$data);
$this->load->view('site/static/header');
$this->load->view('site/content/upload_360_images');
$this->load->view('site/static/footer');
$this->load->view('site/static/footer_links');
}
}
else
{
redirect(base_url().'user/login');
}
}
以上是我的控制器功能,它上传 360 图像并将名称保存在数据库中。没什么特别的,我没有使用 CI 上传库
这是我的数据库Table 用于存储 360 图片名称
public function property_detail()
{
$id=$this->uri->segment(3);
$this->property_model->incPageViewById($id);
$data['contact']=$this->admin_model->getContactDetails();
$data['section_fields']=$this->admin_model->getSectionFields('property_sections');
$data['property']=$this->property_model->getPropertyById($id);
// Get 360 Images list of this property based on ID
$data['images360']=$this->post_model->getProperty360Images($id);
$data['profile']=$this->property_model->getFieldsById($id);
$data['types']=$this->admin_model->getAll('property_types');
$data['similar']=$this->property_model->getSimilarPropertiesById($data['property'][0]['posted_by']);
$data['popular']=$this->property_model->getAllProperties(0,0);
if($this->isLoggedIn())
{
$data['favorites']=$this->property_model->getMyFavorites($this->session->userdata['id']);
$data['is_favorite']=$this->property_model->isFavorite($id,$this->session->userdata['id']);
}
$data['posted_by']=$this->property_model->getPostedByDetails($id);
$data['comments']=$this->property_model->getCommentsById($id);
if($_POST)
{
$config=array(
array(
'field' => 'name',
'label' => 'Name',
'rules' => 'trim|required',
),
array(
'field' => 'email',
'label' => 'Email',
'rules' => 'trim|required',
),
array(
'field' => 'comment',
'label' => 'Comment',
'rules' => 'trim|required',
)
);
$this->form_validation->set_rules($config);
if($this->form_validation->run()==false)
{
$data['errors']=validation_errors();
$data['title']=$data['property'][0]['title'];
$this->load->view('site/static/head',$data);
$this->load->view('site/static/header');
$this->load->view('site/content/property_detail');
$this->load->view('site/static/footer');
$this->load->view('site/static/footer_links');
}
else
{
$this->property_model->addComment($_POST,$id);
$data['success']='Comment posted successfully';
$data['comments']=$this->property_model->getCommentsById($id);
$data['title']=$data['property'][0]['title'];
$this->load->view('site/static/head',$data);
$this->load->view('site/static/header');
$this->load->view('site/content/property_detail');
$this->load->view('site/static/footer');
$this->load->view('site/static/footer_links');
}
}
else
{
$data['title']=$data['property'][0]['title'];
$this->load->view('site/static/head',$data);
$this->load->view('site/static/header');
$this->load->view('site/content/property_detail');
$this->load->view('site/static/footer');
$this->load->view('site/static/footer_links');
}
}
上面是控制器函数,它从模型中获取所有数据并调用视图来呈现页面。您可以在控制器函数中看到以下行
// Get 360 Images list of this property based on ID
$data['images360']=$this->post_model->getProperty360Images($id);
从模型中获取 360 度图像列表。现在,在 属性 详细视图中,我再次调用在
<?php if(count($images360)>0){
?><h3>360 View</h3><?php
for($i=0;$i<count($images360);$i++){?>
<iframe src = "https://duperty.com/realestate/load360/showImage/<?php echo $images360[$i]['image']?>" width = "100%" height = "540" frameborder = "0" scrolling = "no"></iframe>
<?php }
}?>
我有另一个带有函数 showImage 的控制器 load360,它接收图像名称作为参数并调用显示 360 度图像的视图
class Load360 extends CI_Controller {
function __construct()
{
parent::__construct();
}
public function showImage()
{
header("cache-Control: no-store, no-cache, must-revalidate");
header("cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");
$data['image']=$this->uri->segment(3);
//echo $data['image'];exit;
$this->load->view('site/content/show360',$data);
}
}
在我在这里调用的 show360 视图中,我只是将图像变量与图像路径一起回显。
<html>
<head>
<style>
body{
margin: 0;
}
canvas {
height: 100%;
width: 100%;
}
</style>
<script src="//cdnjs.cloudflare.com/ajax/libs/three.js/r69/three.min.js"></script>
</head>
<body>
<script>
var manualControl = false;
var longitude = 0;
var latitude = 0;
var savedX;
var savedY;
var savedLongitude;
var savedLatitude;
// panoramas background
var panoramasArray = ["<?php echo base_url().'uploads/'.$image;?>"];
var panoramaNumber = Math.floor(Math.random()*panoramasArray.length);
// setting up the renderer
renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
// creating a new scene
var scene = new THREE.Scene();
// adding a camera
//var camera = new THREE.PerspectiveCamera(35, window.innerWidth / window.innerHeight, 0.5, 500);
var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 1, 1000);
camera.target = new THREE.Vector3(0, 0, 0);
// creation of a big sphere geometry
var sphere = new THREE.SphereGeometry(100, 100, 40);
sphere.applyMatrix(new THREE.Matrix4().makeScale(-1, 1, 1));
// creation of the sphere material
var sphereMaterial = new THREE.MeshBasicMaterial();
sphereMaterial.map = THREE.ImageUtils.loadTexture(panoramasArray[panoramaNumber])
// geometry + material = mesh (actual object)
var sphereMesh = new THREE.Mesh(sphere, sphereMaterial);
scene.add(sphereMesh);
// listeners
document.addEventListener("mousedown", onDocumentMouseDown, false);
document.addEventListener("mousemove", onDocumentMouseMove, false);
document.addEventListener("mouseup", onDocumentMouseUp, false);
render();
function render(){
requestAnimationFrame(render);
if(!manualControl){
longitude += 0.1;
}
// limiting latitude from -85 to 85 (cannot point to the sky or under your feet)
latitude = Math.max(-85, Math.min(85, latitude));
// moving the camera according to current latitude (vertical movement) and longitude (horizontal movement)
camera.target.x = 500 * Math.sin(THREE.Math.degToRad(90 - latitude)) * Math.cos(THREE.Math.degToRad(longitude));
camera.target.y = 500 * Math.cos(THREE.Math.degToRad(90 - latitude));
camera.target.z = 500 * Math.sin(THREE.Math.degToRad(90 - latitude)) * Math.sin(THREE.Math.degToRad(longitude));
camera.lookAt(camera.target);
// calling again render function
renderer.render(scene, camera);
}
// when the mouse is pressed, we switch to manual control and save current coordinates
function onDocumentMouseDown(event){
event.preventDefault();
manualControl = true;
savedX = event.clientX;
savedY = event.clientY;
savedLongitude = longitude;
savedLatitude = latitude;
}
// when the mouse moves, if in manual contro we adjust coordinates
function onDocumentMouseMove(event){
if(manualControl){
longitude = (savedX - event.clientX) * 0.1 + savedLongitude;
latitude = (event.clientY - savedY) * 0.1 + savedLatitude;
}
}
// when the mouse is released, we turn manual control off
function onDocumentMouseUp(event){
manualControl = false;
}
// pressing a key (actually releasing it) changes the texture map
document.onkeyup = function(event){
panoramaNumber = (panoramaNumber + 1) % panoramasArray.length
sphereMaterial.map = THREE.ImageUtils.loadTexture(panoramasArray[panoramaNumber])
}
</script>
</body>
</html>
工作完成。您可以在以下链接中查看视图是如何呈现的