地形高度 var start = Cesium.Cartesian3.fromDegrees(114, 30); var end = Cesium.Cartesian3.fromDegrees(115, 30); // 计算起点和终点之间的地形高度 var positions = [Cesium.Cartographic.fromCartesian(start)]; // 插值 100 个点 var count = 100; for (var i = 1; i < count; i++) { var cart = Cesium.Cartesian3.lerp(start, end, i / count, new Cesium.Cartesian3()); positions.push(Cesium.Cartographic.fromCartesian(cart)) ; } positions.push(Cesium.Cartographic.fromCartesian(end)); var promise = Cesium.sampleTerrainMostDetailed(terrainProvider, positions); Cesium.when(promise, function (updatedPositions) { // 每个点的高度 var height = []; for (var i = 0; i < updatedPositions.length; i++) { 

height.push(updatedPositions[i].height); } } 3dtiles 高度 // 起点 var cartesian1 = new Cesium.Cartesian3(1216467.760147752, -4736154.3567799, 4081478.9167016773); // 终点 var cartesian2 = new Cesium.Cartesian3(1216183.8039071201, -4736456.592237458, 4081200.6372076278); // 插值 100 个点 var count = 100; var cartesians = []; for (var i = 0; i <= count; i++) { 

cartesians.push(Cesium.Cartesian3.lerp(cartesian1, cartesian2, i / count, new Cesium.Cartesian3())); } scene.clampToHeightMostDetailed(cartesians).then(function (clampedCartesians) { // 每个点的高度 var height = []; for (var i = 0; i < count; ++i) { height.push(Cesium.Cartographic.fromCartesian(clampedC artesians[i]).height); } } 模型高度 

// 起点 var cartesian1 = new Cesium.Cartesian3(-2505765.4115135744, -3847571.788472332, 4412115.866010899); // 终点 var cartesian2 = new Cesium.Cartesian3(-2505753.7330809264, -3847579.139677606, 4412116.086420342); // 插值 1000 个点 var count = 1000; var cartesians = []; for (var i = 0; i <= count; i++) { var cart = Cesium.Cartesian3.lerp(cartesian1, cartesian2, i / count, new Cesium.Cartesian3()); cartesians.push(Cesium.Cartographic.fromCartesian(cart) ); } scene.sampleHeightMostDetailed(cartesians).then(function (clampedCartesians) { // 每个点的高度 var height = []; for (var i = 0; i < count; ++i) { height.push(clampedCartesians[i].height); 

} }