MetaverseBookmarks/x_ite.html at main · VT-Visionarium/MetaverseBookmarks · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
  <title>Bookmarking – X_ITE Accuracy</title>

  <!-- X_ITE runtime -->
  <script defer src="https://cdn.jsdelivr.net/npm/x_ite@11.5.6/dist/x_ite.min.js"></script> <!--  [oai_citation:0‡create3000.github.io](https://create3000.github.io/x_ite/dom-integration/) -->

  <style>
    body { text-align:center; font-family:Arial,sans-serif; margin:0; padding:20px; background:#f4f4f4 }
    x3d-canvas { width:900px; height:600px; border:2px solid #000; display:block; margin:0 auto 20px }
    button { margin:5px; padding:10px 15px; font-size:14px; cursor:pointer; border:none; border-radius:5px;
             background:#007bff; color:#fff; transition:background .3s }
    button:hover { background:#0056b3 }
    .controls { position:absolute; top:95%; left:50%; transform:translate(-50%,-50%);
                text-align:center; max-width:400px; background:rgba(255,255,255,.8);
                padding:15px; border-radius:10px; box-shadow:0 4px 8px rgba(0,0,0,.2); z-index:999 }
    textarea { width:300px; height:100px; margin-top:10px; padding:5px;
               border:1px solid #ccc; border-radius:5px; font-family:monospace; font-size:12px; resize:none }
    #distanceContainer { margin-top:10px; font-weight:bold; color:#d9534f }
    .modal { display:none; position:fixed; z-index:1000; left:0; top:0; width:100%; height:100%;
             overflow:auto; background:rgba(0,0,0,.5) }
    .modal-content { background:#fff; margin:10% auto; padding:20px; border-radius:10px;
                     width:80%; max-width:600px; box-shadow:0 5px 15px rgba(0,0,0,.3); position:relative }
    .modal-content textarea { width:100%; height:300px; font-family:monospace; font-size:13px; padding:10px }
    .close-btn { position:absolute; top:10px; right:15px; color:#aaa; font-size:24px; font-weight:bold; cursor:pointer }
    .close-btn:hover { color:#000 }
    #thumbnailPreview,#applyModalThumbnail { display:block; max-width:300px; margin-top:10px; border:1px solid #ccc }
    #applyModal .modal-content button { width:100px }
  </style>
</head>

<body>
  <h1 style="margin:20px 0;font-size:24px;color:#333">
    X_ITE Bookmarking Example with Roanoke City Model
  </h1>

  <!-- X3D scene declaratively inside x3d-canvas -->
  <x3d-canvas id="x3dCanvas">
    <X3D profile="Interchange" version="4.0">
      <Scene>
        <WorldInfo title="Roanoke City Model"
                   info="Built 2025, (c) Virginia Tech"
                   ageRestriction="18"
                   license="CC-BY-4.0"></WorldInfo>

        <!-- skybox -->
        <Background backUrl="nz.png" bottomUrl="ny.png" frontUrl="pz.png"
                    leftUrl="nx.png" rightUrl="px.png" topUrl="py.png"></Background>

        <!-- default viewpoint -->
        <Viewpoint DEF="AnimatedViewpoint"
                   position="947.60547 358.48150 114.24887"
                   orientation="-0.12102 0.99012 0.07078 1.38605"
                   description="Animated Street View"></Viewpoint>

        <!-- external model -->
        <Inline url="./3d_file/test.x3d"></Inline>

        <!-- ground -->
        <Transform translation="0 270 0">
          <Shape>
            <Appearance><Material diffuseColor="0.5 0.5 0.5"></Material></Appearance>
            <IndexedFaceSet coordIndex="0 1 2 3 -1" solid="false">
              <Coordinate point="-5000 0 -5000  5000 0 -5000  5000 0 5000  -5000 0 5000"></Coordinate>
            </IndexedFaceSet>
          </Shape>
        </Transform>

        <!-- animation plumbing -->
        <TimeSensor DEF="SceneTimer" loop="false"></TimeSensor>
        <PositionInterpolator DEF="ScenePositionInterp"></PositionInterpolator>
        <OrientationInterpolator DEF="SceneOrientationInterp"></OrientationInterpolator>
        <ROUTE fromNode="SceneTimer" fromField="fraction_changed" toNode="ScenePositionInterp" toField="set_fraction"></ROUTE>
        <ROUTE fromNode="SceneTimer" fromField="fraction_changed" toNode="SceneOrientationInterp" toField="set_fraction"></ROUTE>
        <ROUTE fromNode="ScenePositionInterp" fromField="value_changed" toNode="AnimatedViewpoint" toField="set_position"></ROUTE>
        <ROUTE fromNode="SceneOrientationInterp" fromField="value_changed" toNode="AnimatedViewpoint" toField="set_orientation"></ROUTE>
      </Scene>
    </X3D>
  </x3d-canvas>

  <!-- UI controls (unchanged) -->
  <div class="controls">
    <button onclick="generateBookmark()">Generate Bookmark</button>
    <button onclick="applyBookmark()">Apply Bookmark</button><br>
    <textarea id="bookmarkData" placeholder="Bookmark JSON here…"></textarea>
    <div id="distanceContainer">Distance Error: —</div>
  </div>

  <!-- modals (unchanged) -->
  <div id="bookmarkModal" class="modal">…</div>
  <div id="applyModal" class="modal">…</div>

  <script type="module">
    import X3D from "https://cdn.jsdelivr.net/npm/x_ite@11.5.6/dist/x_ite.min.mjs";
    const Browser = X3D.getBrowser("#x3dCanvas");           //

    Browser.addBrowserCallback("init", X3D.X3DConstants.INITIALIZED_EVENT, init);

    function init() {
      // helper: grab underlying canvas screenshot
      function getScreenshot() {
        const cnv = Browser.element.querySelector("canvas");
        return cnv.toDataURL();
      }

      // helper: compress via a temporary <img>
      function compressDataURI(dataURI, maxW=300, q=.7) {
        return new Promise(res => {
          const img = new Image();
          img.onload = () => {
            const scale = maxW / img.width;
            const canvas = document.createElement("canvas");
            canvas.width = maxW;
            canvas.height = img.height * scale;
            canvas.getContext("2d").drawImage(img, 0, 0, canvas.width, canvas.height);
            res(canvas.toDataURL("image/jpeg", q));
          };
          img.src = dataURI;
        });
      }

      // compute and display metric errors
      function showDistance(expectedPos, expectedOrient) {
        const vp = Browser.activeViewpoint;                  //
        const currPos = vp.position;                         // SFVec3f [x,y,z]
        const dx = currPos[0] - expectedPos[0],
              dy = currPos[1] - expectedPos[1],
              dz = currPos[2] - expectedPos[2];
        const d = Math.hypot(dx, dy, dz);

        // orientation: SFVec4f [axisX, axisY, axisZ, angle]
        const co = vp.orientation,     ca = co[3],
              ea = expectedOrient[3];
        let diff = Math.abs(ca - ea);
        if (diff > Math.PI) diff = 2*Math.PI - diff;
        const deg = diff * 180/Math.PI;

        document.getElementById("distanceContainer").textContent =
          `Distance Error: ${d.toFixed(3)} m, Orientation Error: ${deg.toFixed(2)}°`;
      }

      // generate JSON bookmark
      async function generateBookmark() {
        const vp = Browser.activeViewpoint,
              nav = Browser.activeNavigationInfo;
        const pos = vp.position,
              orient = vp.orientation,
              fov = parseFloat(vp.getAttribute("fieldOfView")),
              zn  = parseFloat(vp.getAttribute("zNear")),
              zf  = parseFloat(vp.getAttribute("zFar"));

        const rawURI = getScreenshot(),
              thumb  = await compressDataURI(rawURI, 300, .7);

        const bookmark = {
          camera: {
            position: [pos[0], pos[1], pos[2]],
            orientation: [orient[0], orient[1], orient[2], orient[3]],
            fieldOfView: fov, zNear: zn, zFar: zf
          },
          navigation: {
            type: nav.type[0], speed: nav.speed
          },
          metadata: {
            annotation: "Generated viewpoint",
            timestamp: new Date().toISOString(),
            author: "User",
            application: "X_ITE Bookmarking v1.0",
            thumbnail: thumb,
            licenses: document.querySelector("WorldInfo").getAttribute("license"),
            ageRestriction: document.querySelector("WorldInfo").getAttribute("ageRestriction"),
            scene: {
              title: document.querySelector("WorldInfo").getAttribute("title"),
              info: document.querySelector("WorldInfo").getAttribute("info")
            }
          }
        };

        const str = JSON.stringify(bookmark, null, 2);
        document.getElementById("bookmarkData").value = str;
        document.getElementById("bookmarkModalText").value = str;
        document.getElementById("thumbnailPreview").src = thumb;
        document.getElementById("bookmarkModal").style.display = "block";

        navigator.clipboard.writeText(str)
          .then(() => document.getElementById("copyStatus").textContent="✅ Bookmark copied!")
          .catch(() => document.getElementById("copyStatus").textContent="⚠️ Copy failed.");
      }

      let _currentBookmark = null;
      function applyBookmark() {
        try {
          _currentBookmark = JSON.parse(document.getElementById("bookmarkData").value);
          if (_currentBookmark.metadata.thumbnail)
            document.getElementById("applyModalThumbnail").src = _currentBookmark.metadata.thumbnail;
          document.getElementById("applyModal").style.display = "block";
        } catch (e) {
          alert("Invalid bookmark data!");
        }
      }

      function confirmApply() {
        const bm = _currentBookmark;
        if (!bm) return closeApplyModal();

        // create a named Viewpoint to bind
        const vpEl = document.createElement("Viewpoint");
        vpEl.setAttribute("DEF","BookmarkVP");
        vpEl.setAttribute("position", bm.camera.position.join(" "));
        vpEl.setAttribute("orientation", bm.camera.orientation.join(" "));
        vpEl.setAttribute("fieldOfView", bm.camera.fieldOfView);
        vpEl.setAttribute("zNear", bm.camera.zNear);
        vpEl.setAttribute("zFar", bm.camera.zFar);
        document.querySelector("#x3dCanvas X3D > Scene").appendChild(vpEl);

        // restore navigation
        Browser.activeNavigationInfo.type[0] = bm.navigation.type;
        Browser.activeNavigationInfo.speed    = bm.navigation.speed;

        // bind it
        Browser.changeViewpoint("BookmarkVP");

        // immediately measure
        showDistance(bm.camera.position, bm.camera.orientation);

        closeApplyModal();
        alert("✅ Bookmark applied!");
      }

      // expo
      window.generateBookmark = generateBookmark;
      window.applyBookmark    = applyBookmark;
      window.confirmApply     = confirmApply;
      window.closeModal       = () => document.getElementById("bookmarkModal").style.display="none";
      window.closeApplyModal  = () => document.getElementById("applyModal").style.display="none";
    }
  </script>
</body>
</html>