愛招飛幫助手冊
目录

3D球形實景-熱點追蹤

# FastWeb 全景瀏覽-立方全景圖-熱點追蹤

  egjs-view360是全景顯示的庫，可用於展示360環繞全景影像或球形全景影像，在移動設備上支援陀螺儀顯示，可帶給使用者身臨其境的感受。本示例將引入立方環繞全景示例，帶大家瞭解如何使用以及製作可移動的動態全景示意圖。

# 1. 下載示例

  點選https://naver.github.io/egjs-view360/release/latest/dist/PanoViewer/view360.panoviewer.pkgd.min.js (opens new window)以下載庫js檔案，在library/js中建立目錄egjs-view360，將下載的js檔案放置於此。

# 2. 確認參數

  使用的線上示例的樣式內容如下：

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>Hot Spot</title>
        <link rel="stylesheet" type="text/css" href="https://naver.github.io/egjs-view360/common/css/demo.css">
        <link rel="stylesheet" type="text/css" href="https://naver.github.io/egjs-view360/common/css/PanoControls.css">
        <script src="https://naver.github.io/egjs-view360/release/latest/dist/PanoViewer/view360.panoviewer.pkgd.min.js"></script>
        <script src="https://naver.github.io/egjs-view360/common/js/PanoControls.js"></script>
        <script src="https://naver.github.io/egjs-view360/common/js/PieView.js"></script>
        <script src="https://naver.github.io/egjs-view360/common/js/jquery-2.2.4.js"></script>
        <script src="https://naver.github.io/egjs-view360/common/js/screenfull.min.js"></script>
		  <script src="https://cdn.jsdelivr.net/npm/sweetalert2@9.7.2/dist/sweetalert2.all.min.js"></script>
        <style>
            .icon {
                background: #70B5E0;
                border-radius: 50%;
                box-shadow: inset -15px -15px 0px 0px rgba(0, 0, 0, 0.1);
            }
            .anchor {
                position: absolute;
                width: 24px;
                height: 24px;
                background: #f77;
                border-radius: 50%;
                transform: translate(-50%, -50%);
                animation: anchor 10s both infinite;
            }
            
            .place {
                position: absolute;
                width: 20px;
                height: 13px;
                background: #F2DDAA;
                border-radius: 50%;
                transform: translate(-50%, -50%);
            }
            
            .anchor:before {
                position: absolute;
                content: "";
                top: 70%;
                left: 50%;
                transform: translate(-50%, 0);
                border-top: 13px solid #f77;
                border-left: 10px solid transparent;
                border-right: 10px solid transparent;
            }
            
            .anchor:after {
                position: absolute;
                content: "";
                width: 30%;
                height: 30%;
                background: white;
                border-radius: 50%;
                top: 50%;
                left: 50%;
                transform: translate(-50%, -50%);
            }
            
            .place1 {
                top: 77%;
                left: 64%;
            }
            
            .place2 {
                width: 17px;
                height: 10px;
                top: 67%;
                left: 25%;
            }
            
            .place3 {
                width: 17px;
                height: 10px;
                top: 36%;
                left: 75%;
            }
            
            .place4 {
                width: 17px;
                height: 10px;
                top: 26%;
                left: 35%;
            }
            
            .anchor1 {
                top: 55%;
                left: 65%;
                animation-delay: 0.3s;
            }
            
            .anchor2 {
                top: 50%;
                left: 25%;
                transform: translate(-50%, -50%) scale(0.8);
                animation-delay: 0.6s;
            }
            
            .anchor3 {
                top: 20%;
                left: 75%;
                transform: translate(-50%, -50%) scale(0.8);
                animation-delay: 0.9s;
            }
            
            .anchor4 {
                top: 10%;
                left: 35%;
                transform: translate(-50%, -50%) scale(0.7);
                animation-delay: 1.2s;
            }
            
            @keyframes anchor {
                0% {
                    opacity: 0;
                    margin-top: -20px;
                }
            
                10% {
                    opacity: 1;
                    margin-top: 0px;
                }
            
                85% {
                    opacity: 1;
                    margin-top: 0px;
                }
            
                91% {
                    opacity: 0;
                    margin-top: -20px;
                }
            
                100% {
                    opacity: 0;
                    margin-top: -20px;
                }
            }
            .hotspot {
                position: absolute;
                top: 0;
                left: 0;
                display: none;
                z-index: 2;
            }
            
            .hotspot.search {
                width: 24px;
                height: 24px;
                /* border: 1px solid #fff; */
            }
            
            .hotspot.search:before {
                position: absolute;
                content: "";
                width: 12px;
                height: 12px;
                top: 0px;
                left: 0px;
                border-radius: 50%;
                border: 3px solid #fff;
            }
            
            .hotspot.search:after {
                position: absolute;
                content: "";
                top: 14px;
                left: 14px;
                width: 3px;
                height: 8px;
                background: #fff;
                transform-origin: 50% 0%;
                transform: rotate(-45deg);
            }
            
            .hotspot.link {
                text-align: center;
                font-weight: bold;
                color: #fff;
            }
            
            .viewer[data-page="1"] .hotspot[data-page="1"] {
                display: block;
            }
            
            .viewer[data-page="2"] .hotspot[data-page="2"] {
                display: block;
            }
            
            .layer {
                position: absolute;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                background: rgba(0, 0, 0, 0.2);
                z-index: 4;
                display: none;
            }
            
            .layer img {
                position: absolute;
                left: 0;
                right: 0;
                top: 0;
                bottom: 0;
                margin: auto;
            }
        </style>
	</head>
	<body>
    <div class="viewer" data-page="1">
        <div class="container"></div>
        <div class="layer" onclick="closeLayer(event);">
            <img src="https://naver.github.io/egjs-view360/examples/panoviewer/etc/img/book1.jpg">
        </div>
        <div class="hotspot search" data-page="1" data-anchor-index="0" data-yaw="52" data-pitch="-14" onclick="openLayer('book1.jpg')"></div>
        <div class="hotspot search" data-page="1" data-anchor-index="1" data-yaw="-45" data-pitch="-18" onclick="openLayer('book2.jpg')"></div>
        <div class="hotspot search" data-page="1" data-anchor-index="2" data-yaw="6" data-pitch="-17" onclick="openLayer('book3.jpg')"></div>
        <div class="hotspot link" data-page="1" data-anchor-index="3" data-yaw="-96" data-pitch="-8" onclick="load(this, 2)">
            Economy<br>
            Culture
        </div>
        <div class="hotspot search" data-page="2" data-anchor-index="0" data-yaw="-60" data-pitch="-23" onclick="openLayer('book4.jpg')"></div>
        <div class="hotspot link" data-page="2" data-anchor-index="1" data-yaw="80" data-pitch="-12" onclick="load(this, 1)">
            Technology<br>Science
        </div>
    </div>
        <script>
            var layer = document.querySelector(".layer");
            var panoviewer = document.querySelector(".viewer");
            var container = document.querySelector(".viewer .container");
            var hotspots = Array.prototype.slice.call(document.querySelectorAll(".hotspot"));
            var currentPage = "1";

            function openLayer(img) {
                layer.querySelector("img").src = "https://naver.github.io/egjs-view360/examples/panoviewer/etc/img/" + img;
                layer.style.display = "block";
            }
            function closeLayer(e) {
                if (e.target === layer) {
                    layer.style.display = "none";
                }
            }
            function toRadian(deg) {
                return deg * Math.PI / 180;
            }
            function getHFov(fov) {
                var rect = container.getBoundingClientRect();
                var width = rect.width;
                var height = rect.height;
                return Math.atan(width / height * Math.tan(toRadian(fov) / 2)) / Math.PI * 360;
            }
            function rotate(point, deg) {
                var rad = toRadian(deg);
                var cos = Math.cos(rad);
                var sin = Math.sin(rad);

                return [cos * point[0] - sin * point[1], sin * point[0] + cos * point[1]];
            }
            function setHotspotOffset(hotspot, viewer) {
                var oyaw = viewer.getYaw();
                var opitch = viewer.getPitch();
                var yaw = parseFloat(hotspot.getAttribute("data-yaw"));
                var pitch = parseFloat(hotspot.getAttribute("data-pitch"));
                var deltaYaw = yaw - oyaw;
                var deltaPitch = pitch - opitch;

                if (deltaYaw < -180) {
                    deltaYaw += 360;
                } else if (deltaYaw > 180) {
                    deltaYaw -= 360;
                }
                if (Math.abs(deltaYaw) > 90) {
                    hotspot.style.transform = "translate(-200px, 0px)";
                    return;
                }
                var radYaw = toRadian(deltaYaw);
                var radPitch = toRadian(deltaPitch);

                var fov = viewer.getFov();
                var hfov = getHFov(fov);

                var rx = Math.tan(toRadian(hfov) / 2);
                var ry = Math.tan(toRadian(fov) / 2);


                var point = [
                    Math.tan(-radYaw) / rx,
                    Math.tan(-radPitch) / ry,
                ];

                // Image rotation compensation
                // The original image is about 10 degrees tilted.
                point = point.map(function (p) {
                    return p * Math.cos(15 / 180 * Math.PI);
                });
                point[1] = rotate(point, deltaYaw > 0 ? -10 : 10)[1];

                // point[0] /= 1.05;
                var left = viewer._width / 2 + point[0] * viewer._width / 2;
                var top = viewer._height / 2 + point[1] * viewer._height / 2;

                hotspot.style.transform = "translate(" + left + "px, " + top + "px) translate(-50%, -50%)";
            }
            function setHotspotOffsets(viewer) {
                hotspots.filter(function (hotspot) {
                    return hotspot.getAttribute("data-page") === currentPage;
                }).forEach(function (hotspot) {
                    setHotspotOffset(hotspot, viewer);
                });
            }
            function load(target, page) {
                if (currentPage == page) {
                    return;
                }
                var yaw = target.getAttribute("data-yaw");
                var pitch = target.getAttribute("data-pitch");

                currentPage = "" + page;

                viewer.lookAt({
                    yaw: yaw,
                    pitch: pitch,
                    fov: 30
                }, 500);

                setTimeout(function () {
                    panoviewer.setAttribute("data-page", currentPage);
                    viewer.setImage("https://naver.github.io/egjs-view360/examples/panoviewer/etc/img/bookcube" + page + ".jpg", {
                        projectionType: eg.view360.PanoViewer.PROJECTION_TYPE.CUBEMAP,
                        cubemapConfig: {
                            tileConfig: { flipHorizontal: true, rotation: 0 },
                        }
                    });
                }, 500);
            }
            var viewer = new eg.view360.PanoViewer(container, {
                image: "https://naver.github.io/egjs-view360/examples/panoviewer/etc/img/bookcube1.jpg",
                useZoom: false,
                projectionType: eg.view360.PanoViewer.PROJECTION_TYPE.CUBEMAP,
                cubemapConfig: {
                    tileConfig: { flipHorizontal: true, rotation: 0 },
                }
            }).on("ready", function (e) {
                viewer.lookAt({
                    fov: 80,
                });

                setTimeout(function () {
                    viewer.lookAt({
                        fov: 65,
                    }, 500);
                    setHotspotOffsets(viewer);
                });
            }).on("viewChange", function (e) {
                setHotspotOffsets(viewer);
            }).on("error", function (e) {
              console.error(e);
            });

            window.addEventListener("resize", function (e) {
                viewer.updateViewportDimensions();
                setHotspotOffsets(viewer);
            });

            PanoControls.init(panoviewer, viewer);
            PanoControls.showLoading();
        </script>
	</body>
</html>
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# 3. 修改模板

# 3.1. 本地化處理

  可以看到上述的html文件中引入了外部鏈接庫檔案，將整理的以下鏈接指向的檔案下載下來並按照指示放入指定目錄中。

以下檔案請放入library/js/egjs-view360/common/css/目錄
https://naver.github.io/egjs-view360/common/css/demo.css
https://naver.github.io/egjs-view360/common/css/PanoControls.css

以下檔案請放入library/js/egjs-view360/common/js/目錄
https://naver.github.io/egjs-view360/common/js/PanoControls.js
https://naver.github.io/egjs-view360/common/js/PieView.js
https://naver.github.io/egjs-view360/common/js/jquery-2.2.4.js
https://naver.github.io/egjs-view360/common/js/screenfull.min.js
https://cdn.jsdelivr.net/npm/sweetalert2@9.7.2/dist/sweetalert2.all.min.js

以下檔案下載下來后請將檔案放入library/js/egjs-view360/examples/img
https://naver.github.io/egjs-view360/examples/panoviewer/etc/img/book1.jpg
https://naver.github.io/egjs-view360/examples/panoviewer/etc/img/book2.jpg
https://naver.github.io/egjs-view360/examples/panoviewer/etc/img/book3.jpg
https://naver.github.io/egjs-view360/examples/panoviewer/etc/img/book4.jpg
https://naver.github.io/egjs-view360/examples/panoviewer/etc/img/bookcube1.jpg
https://naver.github.io/egjs-view360/examples/panoviewer/etc/img/bookcube2.jpg
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  部分庫檔案需依賴圖示檔案，從以下地址下載圖示檔案並將其放入指定目錄中。

以下檔案請放入library/js/egjs-view360/common/img/目錄
https://naver.github.io/egjs-view360/common/img/sp_component.png
https://naver.github.io/egjs-view360/common/img/common_loading_mo_white.gif
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  將html文件中對應的鏈接修改爲本地的相對鏈接，修改後的示例如下：

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Hot Spot</title>
        <link rel="stylesheet" type="text/css" href="library/js/egjs-view360/common/css/demo.css">
        <link rel="stylesheet" type="text/css" href="library/js/egjs-view360/common/css/PanoControls.css">
        <script src="library/js/egjs-view360/view360.panoviewer.pkgd.min.js"></script>
        <script src="library/js/egjs-view360/common/js/PanoControls.js"></script>
        <script src="library/js/egjs-view360/common/js/PieView.js"></script>
        <script src="library/js/egjs-view360/common/js/jquery-2.2.4.js"></script>
        <script src="library/js/egjs-view360/common/js/screenfull.min.js"></script>
        <script src="library/js/egjs-view360/common/js/sweetalert2.all.min.js"></script>
        <style>
            .icon {
                background: #70B5E0;
                border-radius: 50%;
                box-shadow: inset -15px -15px 0px 0px rgba(0, 0, 0, 0.1);
            }
            .anchor {
                position: absolute;
                width: 24px;
                height: 24px;
                background: #f77;
                border-radius: 50%;
                transform: translate(-50%, -50%);
                animation: anchor 10s both infinite;
            }
            
            .place {
                position: absolute;
                width: 20px;
                height: 13px;
                background: #F2DDAA;
                border-radius: 50%;
                transform: translate(-50%, -50%);
            }
            
            .anchor:before {
                position: absolute;
                content: "";
                top: 70%;
                left: 50%;
                transform: translate(-50%, 0);
                border-top: 13px solid #f77;
                border-left: 10px solid transparent;
                border-right: 10px solid transparent;
            }
            
            .anchor:after {
                position: absolute;
                content: "";
                width: 30%;
                height: 30%;
                background: white;
                border-radius: 50%;
                top: 50%;
                left: 50%;
                transform: translate(-50%, -50%);
            }
            
            .place1 {
                top: 77%;
                left: 64%;
            }
            
            .place2 {
                width: 17px;
                height: 10px;
                top: 67%;
                left: 25%;
            }
            
            .place3 {
                width: 17px;
                height: 10px;
                top: 36%;
                left: 75%;
            }
            
            .place4 {
                width: 17px;
                height: 10px;
                top: 26%;
                left: 35%;
            }
            
            .anchor1 {
                top: 55%;
                left: 65%;
                animation-delay: 0.3s;
            }
            
            .anchor2 {
                top: 50%;
                left: 25%;
                transform: translate(-50%, -50%) scale(0.8);
                animation-delay: 0.6s;
            }
            
            .anchor3 {
                top: 20%;
                left: 75%;
                transform: translate(-50%, -50%) scale(0.8);
                animation-delay: 0.9s;
            }
            
            .anchor4 {
                top: 10%;
                left: 35%;
                transform: translate(-50%, -50%) scale(0.7);
                animation-delay: 1.2s;
            }
            
            @keyframes anchor {
                0% {
                    opacity: 0;
                    margin-top: -20px;
                }
            
                10% {
                    opacity: 1;
                    margin-top: 0px;
                }
            
                85% {
                    opacity: 1;
                    margin-top: 0px;
                }
            
                91% {
                    opacity: 0;
                    margin-top: -20px;
                }
            
                100% {
                    opacity: 0;
                    margin-top: -20px;
                }
            }
            .hotspot {
                position: absolute;
                top: 0;
                left: 0;
                display: none;
                z-index: 2;
            }
            
            .hotspot.search {
                width: 24px;
                height: 24px;
                /* border: 1px solid #fff; */
            }
            
            .hotspot.search:before {
                position: absolute;
                content: "";
                width: 12px;
                height: 12px;
                top: 0px;
                left: 0px;
                border-radius: 50%;
                border: 3px solid #fff;
            }
            
            .hotspot.search:after {
                position: absolute;
                content: "";
                top: 14px;
                left: 14px;
                width: 3px;
                height: 8px;
                background: #fff;
                transform-origin: 50% 0%;
                transform: rotate(-45deg);
            }
            
            .hotspot.link {
                text-align: center;
                font-weight: bold;
                color: #fff;
            }
            
            .viewer[data-page="1"] .hotspot[data-page="1"] {
                display: block;
            }
            
            .viewer[data-page="2"] .hotspot[data-page="2"] {
                display: block;
            }
            
            .layer {
                position: absolute;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                background: rgba(0, 0, 0, 0.2);
                z-index: 4;
                display: none;
            }
            
            .layer img {
                position: absolute;
                left: 0;
                right: 0;
                top: 0;
                bottom: 0;
                margin: auto;
            }
        </style>
  </head>
  <body>
    <div class="viewer" data-page="1">
        <div class="container"></div>
        <div class="layer" onclick="closeLayer(event);">
            <img src="library/js/egjs-view360/examples/img/book1.jpg">
        </div>
        <div class="hotspot search" data-page="1" data-anchor-index="0" data-yaw="52" data-pitch="-14" onclick="openLayer('book1.jpg')"></div>
        <div class="hotspot search" data-page="1" data-anchor-index="1" data-yaw="-45" data-pitch="-18" onclick="openLayer('book2.jpg')"></div>
        <div class="hotspot search" data-page="1" data-anchor-index="2" data-yaw="6" data-pitch="-17" onclick="openLayer('book3.jpg')"></div>
        <div class="hotspot link" data-page="1" data-anchor-index="3" data-yaw="-96" data-pitch="-8" onclick="load(this, 2)">
            Economy<br>
            Culture
        </div>
        <div class="hotspot search" data-page="2" data-anchor-index="0" data-yaw="-60" data-pitch="-23" onclick="openLayer('book4.jpg')"></div>
        <div class="hotspot link" data-page="2" data-anchor-index="1" data-yaw="80" data-pitch="-12" onclick="load(this, 1)">
            Technology<br>Science
        </div>
    </div>
        <script>
            var layer = document.querySelector(".layer");
            var panoviewer = document.querySelector(".viewer");
            var container = document.querySelector(".viewer .container");
            var hotspots = Array.prototype.slice.call(document.querySelectorAll(".hotspot"));
            var currentPage = "1";

            function openLayer(img) {
                layer.querySelector("img").src = "library/js/egjs-view360/examples/img/" + img;
                layer.style.display = "block";
            }
            function closeLayer(e) {
                if (e.target === layer) {
                    layer.style.display = "none";
                }
            }
            function toRadian(deg) {
                return deg * Math.PI / 180;
            }
            function getHFov(fov) {
                var rect = container.getBoundingClientRect();
                var width = rect.width;
                var height = rect.height;
                return Math.atan(width / height * Math.tan(toRadian(fov) / 2)) / Math.PI * 360;
            }
            function rotate(point, deg) {
                var rad = toRadian(deg);
                var cos = Math.cos(rad);
                var sin = Math.sin(rad);

                return [cos * point[0] - sin * point[1], sin * point[0] + cos * point[1]];
            }
            function setHotspotOffset(hotspot, viewer) {
                var oyaw = viewer.getYaw();
                var opitch = viewer.getPitch();
                var yaw = parseFloat(hotspot.getAttribute("data-yaw"));
                var pitch = parseFloat(hotspot.getAttribute("data-pitch"));
                var deltaYaw = yaw - oyaw;
                var deltaPitch = pitch - opitch;

                if (deltaYaw < -180) {
                    deltaYaw += 360;
                } else if (deltaYaw > 180) {
                    deltaYaw -= 360;
                }
                if (Math.abs(deltaYaw) > 90) {
                    hotspot.style.transform = "translate(-200px, 0px)";
                    return;
                }
                var radYaw = toRadian(deltaYaw);
                var radPitch = toRadian(deltaPitch);

                var fov = viewer.getFov();
                var hfov = getHFov(fov);

                var rx = Math.tan(toRadian(hfov) / 2);
                var ry = Math.tan(toRadian(fov) / 2);


                var point = [
                    Math.tan(-radYaw) / rx,
                    Math.tan(-radPitch) / ry,
                ];

                point = point.map(function (p) {
                    return p * Math.cos(15 / 180 * Math.PI);
                });
                point[1] = rotate(point, deltaYaw > 0 ? -10 : 10)[1];

                var left = viewer._width / 2 + point[0] * viewer._width / 2;
                var top = viewer._height / 2 + point[1] * viewer._height / 2;

                hotspot.style.transform = "translate(" + left + "px, " + top + "px) translate(-50%, -50%)";
            }
            function setHotspotOffsets(viewer) {
                hotspots.filter(function (hotspot) {
                    return hotspot.getAttribute("data-page") === currentPage;
                }).forEach(function (hotspot) {
                    setHotspotOffset(hotspot, viewer);
                });
            }
            function load(target, page) {
                if (currentPage == page) {
                    return;
                }
                var yaw = target.getAttribute("data-yaw");
                var pitch = target.getAttribute("data-pitch");

                currentPage = "" + page;

                viewer.lookAt({
                    yaw: yaw,
                    pitch: pitch,
                    fov: 30
                }, 500);

                setTimeout(function () {
                    panoviewer.setAttribute("data-page", currentPage);
                    viewer.setImage("library/js/egjs-view360/examples/img/bookcube" + page + ".jpg", {
                        projectionType: eg.view360.PanoViewer.PROJECTION_TYPE.CUBEMAP,
                        cubemapConfig: {
                            tileConfig: { flipHorizontal: true, rotation: 0 },
                        }
                    });
                }, 500);
            }
            var viewer = new eg.view360.PanoViewer(container, {
                image: "library/js/egjs-view360/examples/img/bookcube1.jpg",
                useZoom: false,
                projectionType: eg.view360.PanoViewer.PROJECTION_TYPE.CUBEMAP,
                cubemapConfig: {
                    tileConfig: { flipHorizontal: true, rotation: 0 },
                }
            }).on("ready", function (e) {
                viewer.lookAt({
                    fov: 80,
                });

                setTimeout(function () {
                    viewer.lookAt({
                        fov: 65,
                    }, 500);
                    setHotspotOffsets(viewer);
                });
            }).on("viewChange", function (e) {
                setHotspotOffsets(viewer);
            }).on("error", function (e) {
              console.error(e);
            });

            window.addEventListener("resize", function (e) {
                viewer.updateViewportDimensions();
                setHotspotOffsets(viewer);
            });

            PanoControls.init(panoviewer, viewer);
            PanoControls.showLoading();
        </script>
  </body>
</html>
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  可進入JQueryFrame元件管理界面，將上述內容填寫入模板中。此庫由於引用了較多的外部的css與js檔案，為保證其不被FastWeb框架影響，建議使用URLFrame容器引入。

# 4. 設定檔案

  全景瀏覽的初始示例使用的相片為立方全景影象，此影象通常由球狀全景影象轉換而來。可參考全景瀏覽-球狀全景圖-汽車內飾中的球狀全景圖製作方式製作球狀全景圖，然後再使用PTGui將球狀全景圖轉換為立方全景圖。

3D圓柱實景-風景瀏覽
3D球形實景-全景視訊

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