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@@ -37,7 +37,6 @@ let elevations = null
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let markerEntities = []
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let handler = null
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let removePostRender = null
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-let autoRotateListener = null
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// 计算地形经纬度范围
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function computeTerrainRectangle() {
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@@ -278,6 +277,9 @@ async function initViewer() {
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viewer.scene.globe.depthTestAgainstTerrain = true
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viewer.scene.globe.enableLighting = false
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+ // 解除相机缩放距离限制
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+ viewer.scene.screenSpaceCameraController.minimumZoomDistance = 0
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+ viewer.scene.screenSpaceCameraController.maximumZoomDistance = Number.POSITIVE_INFINITY
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// 将背景与 globe 底色设为深蓝灰，避免瓦片缺失/加载延迟时露出纯黑
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const fillColor = Cesium.Color.fromCssColorString('#1a2634')
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viewer.scene.backgroundColor = fillColor
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@@ -329,38 +331,6 @@ function resetCamera() {
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setupCamera()
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}
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-function startAutoRotate() {
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- if (isAutoRotating.value || !viewer || !meta) return
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- isAutoRotating.value = true
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-
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- const rect = computeTerrainRectangle()
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- const eRange = (meta.elevationMax - meta.elevationMin) * veModel.value
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- const targetHeight = meta.elevationMin + eRange * props.cameraTargetY
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- const center = Cesium.Cartesian3.fromDegrees(
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- Cesium.Math.toDegrees(Cesium.Rectangle.center(rect).longitude),
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- Cesium.Math.toDegrees(Cesium.Rectangle.center(rect).latitude),
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- targetHeight
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- )
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- const distance = Math.max(meta.terrainWidthMeters, meta.terrainDepthMeters) * props.cameraDistance
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- const pitch = Cesium.Math.toRadians(-props.cameraPitch)
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- let heading = Cesium.Math.toRadians(props.cameraYaw)
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-
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- autoRotateListener = viewer.clock.onTick.addEventListener(() => {
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- if (!isAutoRotating.value) return
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- heading += Cesium.Math.toRadians(0.1)
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- viewer.camera.lookAt(center, new Cesium.HeadingPitchRange(heading, pitch, distance))
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- viewer.camera.lookAtTransform(Cesium.Matrix4.IDENTITY)
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- })
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-}
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-
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-function stopAutoRotate() {
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- isAutoRotating.value = false
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- if (autoRotateListener) {
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- autoRotateListener()
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- autoRotateListener = null
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- }
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-}
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-
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// 获取标记点 exaggeration 后的地表高度
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function getMarkerSurfaceHeight(lon, lat) {
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const lonMin = meta.dsmLonMin
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@@ -560,9 +530,6 @@ async function loadAll() {
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await initViewer()
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loading.value = false
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-
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- // 加载完成后启动旋转动效
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- startAutoRotate()
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} catch (err) {
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console.error('加载失败:', err)
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error.value = '加载失败: ' + (err.message || err)
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@@ -597,7 +564,6 @@ window.addEventListener('resize', onResize)
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onUnmounted(() => {
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window.removeEventListener('message', handleIframeMessage)
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window.removeEventListener('resize', onResize)
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- stopAutoRotate()
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if (removePostRender) removePostRender()
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if (handler) handler.destroy()
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if (viewer) viewer.destroy()
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