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<說明>
在本範例中,我們將示範如何雙擊放大地圖開關,說明如下:
<範例>
var earth_ = null;
function documentLoad() { document.body.style.overflow = "hidden"; SuperGIS.Initialize("/ServerGate/", function () { SuperGIS.ServerEarth.Initialize(InitEarth); }); }
function InitEarth() { var pBody = new SuperGIS.Windows.HTMLContainer(document.getElementById("example"));
var sHost = location.href; var idx = sHost.indexOf("/", 8); if (idx >= 0) sHost = sHost.substring(0, idx); CreateHTML5Earth(pBody, function (pEarth) { EarthLoaded(pEarth); });
function EarthLoaded(pEarth) { earth_ = pEarth; pEarth.Scene.BackgroundColor = pEarth.CreateColor(0, 0, 0, 1); pEarth.SetupSystem(true, s_WGS84); pEarth.SetupSkin(pEarth.CreateEnvelope(-180, 180, -90, 90, s_WGS84), sHost + "/ServerGate/Skin1.jpg"); pEarth.MajorGraticule.Visible = false; pEarth.MinorGraticule.Visible = false;
// 指定向量磚服務的 WMTS 網址, 欲加入的圖層名稱, 及 callback function 名稱 VLayer = new SuperGIS.VectorLayer(getDataServicePath() + 'project_block/SimpleWMTS.aspx', pEarth, { layer: '土地使用分區' }, LanduseFinish);
pEarth.SetViewpoint(120.656, 24.160, 500, 0, 50, true);
var pTObj = pEarth.GetObject(); pTObj.addEventListener("click", QueryAttribute, false, true); // 引入 click 事件
var pCam = pEarth.GetCamera(); pCam.addEventListener("changed", CameraChanged, false); // Camera 狀態改變時觸發 }
// 在 callback 中設定每個 feature 的符號樣式 function LanduseFinish(array) { var rv = 128, gv = 255, bv = 128; for (var i = 0; i < array.length; i++) { var mark = array[i]; var fc = earth_.CreateColor(rv / 255.0, gv / 255.0, bv / 255.0, 128 / 255.0); mark.ReplaceZ = 0.5; // 設定高程 (公尺) mark.DDDSymbol = earth_.CreateSimpleDDDFillSymbol(earth_.CreateModelMaterial(0, fc), null); mark.Queryable = true; // 設定為可查詢 } }
function OnCloseClick() { // 關掉屬性視窗時觸發 } function OnContentChange() { // 改變屬性視窗內容時觸發, 可由呼叫 setContent 觸發 } function OnPositionChange() { // 改變屬性視窗位置時觸發, 可由呼叫 setPosition 觸發 }
var pInfoWindow = null; function QueryAttribute(tEvent) { if (pInfoWindow != null) { pInfoWindow.close(); pInfoWindow = null; }
if (tEvent.button == 2) // 使按右鍵無作用 return;
var pScene = earth_.GetScene(); var pCamera = earth_.GetCamera(); var pGlobe = earth_.GetGlobe();
var CurPosition = pScene.PositionFromDevice(new SuperGIS.DDDCore.Vector3(tEvent.x, tEvent.y, 0)); var pPick = earth_.PlacemarkObjects.Picking(SuperGIS.DDDCore.RenderPriority.Unknown, pCamera.EyeAt, pCamera.Ray(CurPosition), 0); if (pPick != null) { var pm = pPick.Target; var feaData = pm.GetFieldValues();
var infoStr = '<table border="1">'; for (var f in feaData) { infoStr += "<tr><td>"; infoStr += f; infoStr += "</td><td>"; infoStr += feaData[f]; infoStr += "</td></tr>"; } infoStr += '</table>';
var CurLocation = pGlobe.RayTest(pCamera.EyeAt, pCamera.Ray(CurPosition), 1, true); pt = pGlobe.GeodeticFromCartesian(CurLocation);
// infoStr 為 Content 內容 // pt 為視窗出現的空間坐標 // 支援的 option 有 maxWidth (視窗最大寬度); pixelOffsetX/pixelOffsetY: X/Y 方向的視窗位移 pInfoWindow = new SuperGIS.InfoWindow(infoStr, pt, { maxWidth: 250, pixelOffsetX: 100, pixelOffsetY: 0}); // 建立屬性視窗 pInfoWindow.open(earth_, document.getElementById("example"));
SuperGIS.Event.addListener(pInfoWindow, "closeclick", OnCloseClick); // 監聽屬性視窗的 close 事件 SuperGIS.Event.addListener(pInfoWindow, "content_changed", OnContentChange); // 監聽屬性視窗的 content change 事件 SuperGIS.Event.addListener(pInfoWindow, "position_changed", OnPositionChange); // 監聽屬性視窗的 position change 事件 } }
function CameraChanged(tEvent) { // Camera 狀態改變就關掉視窗 if (pInfoWindow != null) { pInfoWindow.close(); pInfoWindow = null; } } } |
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