var DrawDynamicClampGround = (function () {
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var mouseHandlerDraw;
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function GetNorthCartesain(cartesain0, cartesain1) {
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var cartographic0 = Cesium.Cartographic.fromCartesian(cartesain0);
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var cartographic1 = Cesium.Cartographic.fromCartesian(cartesain1);
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var height = cartographic0.height > cartographic1.height ? cartographic0.height : cartographic1.height;
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var length = Math.sqrt((cartographic0.longitude - cartographic1.longitude) * (cartographic0.longitude - cartographic1.longitude)+
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(cartographic0.latitude - cartographic1.latitude) * (cartographic0.latitude - cartographic1.latitude));
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var cartographicN = new Cesium.Cartographic(cartographic0.longitude, cartographic0.latitude + length, height);
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var cartesainN = Cesium.Cartesian3.fromRadians(cartographicN.longitude, cartographicN.latitude, cartographicN.height);
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return cartesainN;
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}
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function _() { }
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//绘制点
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_.startDrawPoint = function (viewer, callback) {
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var scene = viewer.scene;
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if (mouseHandlerDraw) {
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mouseHandlerDraw.destroy();
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mouseHandlerDraw = null;
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} else {
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mouseHandlerDraw = new Cesium.ScreenSpaceEventHandler(scene.canvas);
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}
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TooltipDiv.initTool(viewer.cesiumWidget.container);
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mouseHandlerDraw.setInputAction(function (movement) {
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if (movement.position != null) {
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var cartesian = viewer.scene.pickPosition(movement.position);
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if (cartesian) {
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var cartographic = Cesium.Cartographic.fromCartesian(cartesian);
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if (cartographic) {
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if (typeof callback == 'function') {
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callback(cartographic);
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}
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if (mouseHandlerDraw) {
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mouseHandlerDraw.destroy();
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mouseHandlerDraw = null;
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}
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TooltipDiv.setVisible(false);
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}
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}
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}
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}, Cesium.ScreenSpaceEventType.LEFT_CLICK);
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mouseHandlerDraw.setInputAction(function (movement) {
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var cartesian = viewer.scene.pickPosition(movement.endPosition);
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if (cartesian) {
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TooltipDiv.showAt(movement.endPosition, '点击添加点');
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}
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}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
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}
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//绘制线段
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_.startDrawingLine = function (viewer, callback) {
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var scene = viewer.scene;
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if (mouseHandlerDraw) {
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mouseHandlerDraw.destroy();
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mouseHandlerDraw = null;
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} else {
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mouseHandlerDraw = new Cesium.ScreenSpaceEventHandler(scene.canvas);
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}
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TooltipDiv.initTool(viewer.cesiumWidget.container);
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var drawingPolyline = null;
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var positions = [];
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mouseHandlerDraw.setInputAction(function (movement) {
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if (movement.position != null) {
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var cartesian = viewer.scene.pickPosition(movement.position);
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if (cartesian) {
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if (positions.length == 0) {
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positions.push(cartesian.clone());
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} else if (positions.length == 1) {
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positions.push(cartesian.clone());
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if (typeof callback == 'function') {
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callback(positions);
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}
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if (mouseHandlerDraw) {
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mouseHandlerDraw.destroy();
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mouseHandlerDraw = null;
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}
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TooltipDiv.setVisible(false);
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//移除
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if (drawingPolyline != undefined)
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viewer.entities.remove(drawingPolyline);
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}
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}
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}
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}, Cesium.ScreenSpaceEventType.LEFT_CLICK);
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mouseHandlerDraw.setInputAction(function (movement) {
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var cartesian = viewer.scene.pickPosition(movement.endPosition);
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if (cartesian) {
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if (positions.length == 0) {
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TooltipDiv.showAt(movement.endPosition, '点击添加起点');
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} else if (positions.length == 1) {
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//更新entity
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var positionArr = [];
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positionArr.push(positions[0]);
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positionArr.push(cartesian);
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if (drawingPolyline != undefined)
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viewer.entities.remove(drawingPolyline);
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var lineOpts = {
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polyline: {
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positions: positionArr,
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clampToGround: true, //
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width: 3,
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material: Cesium.Color.BLUE.withAlpha(0.5),
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}
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};
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drawingPolyline = viewer.entities.add(lineOpts);
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TooltipDiv.showAt(movement.endPosition, "点击添加终点");
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}
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}
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}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
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};
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//绘制多段线
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_.startDrawingPolyline = function (viewer, callback) {
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var scene = viewer.scene;
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if (mouseHandlerDraw) {
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mouseHandlerDraw.destroy();
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mouseHandlerDraw = null;
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} else {
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mouseHandlerDraw = new Cesium.ScreenSpaceEventHandler(scene.canvas);
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}
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TooltipDiv.initTool(viewer.cesiumWidget.container);
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var drawingPolyline = null;
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var positions = [];
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mouseHandlerDraw.setInputAction(function (movement) {
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if (movement.position != null) {
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var cartesian = viewer.scene.pickPosition(movement.position);
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if (cartesian) {
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positions.push(cartesian.clone());
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// var cartographic = Cesium.Cartographic.fromCartesian(cartesian);//当前点
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// if (cartographic) {
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// if (cartesian) {
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// var isIntersect = false;
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// if (positions.length >= 3) {
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// var cartographicArr = [];
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// for (var i = 0; i < positions.length; i++) {
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// cartographicArr.push(Cesium.Cartographic.fromCartesian(positions[i]));
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// }
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// var line1 = turf.lineString([[cartographic.longitude, cartographic.latitude], [cartographicArr[cartographicArr.length - 1].longitude, cartographicArr[cartographicArr.length - 1].latitude]]);
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// for (var i = 2; i < positions.length; i++) {
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// var line2 = turf.lineString([
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// [cartographicArr[i - 2].longitude, cartographicArr[i - 2].latitude],
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// [cartographicArr[i - 1].longitude, cartographicArr[i - 1].latitude]]);
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// var intersects = turf.lineIntersect(line1, line2);
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// if (intersects && intersects.features && intersects.features.length > 0) {
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// isIntersect = true;
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// alert('图形自相交！');
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// break;
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// }
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// }
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// }
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// if (isIntersect) { } else {
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// positions.push(cartesian.clone());
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// }
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// }
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// }
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}
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}
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}, Cesium.ScreenSpaceEventType.LEFT_CLICK);
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mouseHandlerDraw.setInputAction(function (movement) {
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var cartesian = viewer.scene.pickPosition(movement.endPosition);
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if (cartesian) {
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if (positions.length == 0) {
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TooltipDiv.showAt(movement.endPosition, '点击添加起点');
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} else {
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var positionArr = [];
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for (var i = 0; i < positions.length; i++) {
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positionArr.push(positions[i]);
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}
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positionArr.push(cartesian);
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if (drawingPolyline != undefined)
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viewer.entities.remove(drawingPolyline);
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var lineOpts = {
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polyline: {
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positions: positionArr,
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clampToGround: true, //
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width: 3,
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material: Cesium.Color.BLUE.withAlpha(0.5),
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}
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};
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drawingPolyline = viewer.entities.add(lineOpts);
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TooltipDiv.showAt(movement.endPosition, "双击结束");
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}
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}
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}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
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mouseHandlerDraw.setInputAction(function (movement) {
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if (movement.position != null) {
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var cartesian = viewer.scene.pickPosition(movement.position);
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if (cartesian) {
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if (positions.length < 2) {
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return;
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} else {
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if (typeof callback == 'function') {
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callback(positions);
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}
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if (mouseHandlerDraw) {
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mouseHandlerDraw.destroy();
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mouseHandlerDraw = null;
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}
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TooltipDiv.setVisible(false);
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//移除entity
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if (drawingPolyline != undefined)
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viewer.entities.remove(drawingPolyline);
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}
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}
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}
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}, Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK);
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};
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//绘制方位线
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_.startDrawingVLine = function (viewer, callback) {
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var scene = viewer.scene;
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if (mouseHandlerDraw) {
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mouseHandlerDraw.destroy();
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mouseHandlerDraw = null;
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} else {
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mouseHandlerDraw = new Cesium.ScreenSpaceEventHandler(scene.canvas);
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}
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TooltipDiv.initTool(viewer.cesiumWidget.container);
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var drawingPolylineN = null;
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var drawingPolylineT = null;
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var positions = [];
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mouseHandlerDraw.setInputAction(function (movement) {
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if (movement.position != null) {
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var cartesian = viewer.scene.pickPosition(movement.position);
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if (cartesian) {
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if (positions.length == 0) {
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positions.push(cartesian.clone());
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} else if (positions.length == 1) {
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positions.push(cartesian.clone());
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if (typeof callback == 'function') {
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callback(positions);
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}
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if (mouseHandlerDraw) {
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mouseHandlerDraw.destroy();
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mouseHandlerDraw = null;
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}
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TooltipDiv.setVisible(false);
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//移除
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if (drawingPolylineN != undefined)
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viewer.entities.remove(drawingPolylineN);
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if (drawingPolylineT != undefined)
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viewer.entities.remove(drawingPolylineT);
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}
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}
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}
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}, Cesium.ScreenSpaceEventType.LEFT_CLICK);
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mouseHandlerDraw.setInputAction(function (movement) {
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var cartesian = viewer.scene.pickPosition(movement.endPosition);
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if (cartesian) {
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if (positions.length == 0) {
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TooltipDiv.showAt(movement.endPosition, '点击添加起点');
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} else if (positions.length == 1) {
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//更新entity
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var positionArr = [];
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positionArr.push(positions[0]);
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positionArr.push(cartesian);
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//实时
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if (drawingPolylineT != undefined)
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viewer.entities.remove(drawingPolylineT);
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var lineOptsT = {
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polyline: {
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positions: positionArr,
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clampToGround: true, //
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width: 3,
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material: Cesium.Color.BLUE.withAlpha(0.5),
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}
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};
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drawingPolylineT = viewer.entities.add(lineOptsT);
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//正北
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var positionN = [];
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positionN.push(positions[0]);
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positionN.push(GetNorthCartesain(positions[0], cartesian));
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if (drawingPolylineN != undefined)
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viewer.entities.remove(drawingPolylineN);
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var lineOptsN = {
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polyline: {
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positions: positionN,
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clampToGround: true, //
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width: 3,
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material: Cesium.Color.RED.withAlpha(0.5),
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}
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};
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drawingPolylineN = viewer.entities.add(lineOptsN);
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TooltipDiv.showAt(movement.endPosition, "点击结束");
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}
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}
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}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
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}
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return _;
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})();
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