web_show_function_ui_mars3d/public/cesium_example/example/js/showPolygonInter.js

"use script"; //开发环境建议开启严格模式

//显示mars3d.polygon.interPolygon处理后的面内插值分析结果，主要用于测试对比

//显示面的插值计算结果，方便比较分析
var interGraphicLayer;

function clearInterResult() {
  if (!interGraphicLayer) {
    interGraphicLayer = new mars3d.layer.GraphicLayer();
    map.addLayer(interGraphicLayer);
  }

  interGraphicLayer.clear();
}

function showInterResult(list) {
  //分析结果用于测试分析的，不做太多处理，直接清除之前的，只保留一个
  clearInterResult();

  var pt1, pt2, pt3;
  // var geometryInstances = [];
  for (var i = 0, len = list.length; i < len; i++) {
    var item = list[i];

    pt1 = item.point1.pointDM;
    pt2 = item.point2.pointDM;
    pt3 = item.point3.pointDM;

    //点
    for (let pt of [item.point1, item.point2, item.point3]) {
      var primitive = new mars3d.graphic.PointPrimitive({
        position: pt.pointDM,
        style: {
          pixelSize: 9,
          color: Cesium.Color.fromCssColorString("#ff0000").withAlpha(0.5),
        },
      });
      interGraphicLayer.addGraphic(primitive);

      primitive.bindTooltip("点高度:" + mars3d.MeasureUtil.formatDistance(pt.height));
    }

    //横截面面积
    item.area = item.area || mars3d.MeasureUtil.getTriangleArea(pt1, pt2, pt3);

    //三角网及边线
    var positions = [pt1, pt2, pt3, pt1];

    //三角网面（单击用）
    var primitivePoly = new mars3d.graphic.PolygonPrimitive({
      positions: positions,
      style: {
        material: mars3d.MaterialUtil.createMaterial(mars3d.MaterialType.Color, {
          color: Cesium.Color.fromCssColorString("#ffffff").withAlpha(0.01),
        }),
      },
    });
    interGraphicLayer.addGraphic(primitivePoly);
    primitivePoly.bindTooltip("三角面积:" + mars3d.MeasureUtil.formatArea(item.area) + "(第" + i + "个)");

    //三角网边线
    var primitiveLine = new mars3d.graphic.PolylinePrimitive({
      positions: positions,
      style: {
        width: 1,
        material: mars3d.MaterialUtil.createMaterial(mars3d.MaterialType.Color, {
          color: Cesium.Color.fromCssColorString("#ffff00").withAlpha(0.3),
        }),
      },
    });
    interGraphicLayer.addGraphic(primitiveLine);
  }
}

//在f80_interPoly等示例中使用
function showInterLineResult(list) {
  //分析结果用于测试分析的，不做太多处理，直接清除之前的，只保留最后一个
  clearInterResult();

  var colorList = [Cesium.Color.fromCssColorString("#ffff00"), Cesium.Color.fromCssColorString("#00ffff")];

  for (var i = 1, len = list.length; i < len; i++) {
    var pt1 = list[i - 1];
    var pt2 = list[i];

    var color = colorList[i % 2];

    let graphic = new mars3d.graphic.PolylineEntity({
      positions: [pt1, pt2],
      style: {
        width: 3,
        material: color,
        depthFailMaterial: color.withAlpha(0.3),
      },
    });
    interGraphicLayer.addGraphic(graphic);
    graphic.bindTooltip("长度:" + mars3d.MeasureUtil.formatDistance(Cesium.Cartesian3.distance(pt1, pt2)) + "(第" + i + "段)");
  }
}