在 CZML 中创建具有多边形底面的金字塔

Creating a pyramid with polygon base in CZML

我是 Cesium、CZML 和 javascript 的新手,我想在地面上创建一个多边形的金字塔。我有纬度和经度顶点的高度,我有每边的角度。我还找不到任何好的方法来创建它。有什么方法可以在 CZML 文件中创建它?

我不确定这是否可以用一个包来完成。然而,它当然可以用一个单独的 czml 对象来完成。转到此网站:http://cesiumjs.org/Cesium/Apps/Sandcastle/index.html

并粘贴下面的代码。它会给你一个很好的起点。如果您不希望它是透明的,您可能希望更改不透明度。如果您不想让任何人看到您是如何用多个多边形构建金字塔的,您可能希望删除多边形边缘的轮廓。

我给你做的"pyramid"是3面的。您可以扩展它以包括您希望的任意多面。

    var czml = [
      {
        "id" : "document",
        "name" : "CZML Geometries: Polygon",
        "version" : "1.0"
      }, {
        "id" : "orangePolygon",
        "name" : "Orange polygon with per-position heights and outline",
        "polygon" : {
          "positions" : {
            "cartographicDegrees" : [
              -70.0, 35.0, 100000,
              -72.0, 37.0, 0,
              -68.0, 35.0, 0
            ]
          },
          "material" : {
            "solidColor" : {
              "color" : {
                "rgba" : [255, 100, 0, 100]
              }
            }
          },
      "extrudedHeight" : 0,
      "perPositionHeight" : true,
      "outline" : true,
      "outlineColor" : {
        "rgba" : [0, 0, 0, 255]
      }
    }
  },


    {
    "id" : "orangePolygon2",
    "name" : "Orange polygon with per-position heights and outline",
    "polygon" : {
      "positions" : {
        "cartographicDegrees" : [
          -70.0, 35.0, 100000,
          -70.0, 33.0, 0,
          -68.0, 35.0, 0
        ]
      },
      "material" : {
        "solidColor" : {
          "color" : {
            "rgba" : [255, 100, 0, 100]
          }
        }
      },
      "extrudedHeight" : 0,
      "perPositionHeight" : true,
      "outline" : true,
      "outlineColor" : {
        "rgba" : [0, 0, 0, 255]
      }
    }
  },

    {
    "id" : "orangePolygon3",
    "name" : "Orange polygon with per-position heights and outline",
    "polygon" : {
      "positions" : {
        "cartographicDegrees" : [
          -70.0, 35.0, 100000,
          -70.0, 33.0, 0,
          -72.0, 37.0, 0,
        ]
      },
      "material" : {
        "solidColor" : {
          "color" : {
            "rgba" : [255, 100, 0, 100]
          }
        }
      },
      "extrudedHeight" : 0,
      "perPositionHeight" : true,
      "outline" : true,
      "outlineColor" : {
        "rgba" : [0, 0, 0, 255]
      }
    }
  }
];

var viewer = new Cesium.Viewer('cesiumContainer');
var dataSource = Cesium.CzmlDataSource.load(czml);
viewer.dataSources.add(dataSource);
viewer.zoomTo(dataSource);