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- <!--********************************************************************
- * Copyright© 2000 - 2021 SuperMap Software Co.Ltd. All rights reserved.
- *********************************************************************-->
- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="utf-8">
- <title data-i18n="resources.title_labelVectorLayerData"></title>
- <style type="text/css">
- body {
- margin: 0;
- overflow: hidden;
- background: #fff;
- width: 100%;
- height: 100%
- }
- #map {
- position: absolute;
- width: 100%;
- height: 100%;
- }
- #toolbar {
- position: absolute;
- top: 50px;
- right: 10px;
- text-align: center;
- z-index: 100;
- border-radius: 4px;
- }
- </style>
- </head>
- <body>
- <div id="toolbar" class="panel panel-primary">
- <div class='panel-heading'>
- <h5 class='panel-title text-center' data-i18n="resources.text_labelVectorLayerData"></h5></div>
- <div class='panel-body content'>
- <input type="button" class="btn btn-default" data-i18n="[value]resources.text_input_value_addData" onclick="addData()"/>
- <input type="button" class="btn btn-default" data-i18n="[value]resources.text_input_value_removeData" onclick="removeData()"/>
- </div>
- </div>
- <div id="map"></div>
- <script type="text/javascript" include="bootstrap,widgets.alert" src="../js/include-web.js"></script>
- <script type="text/javascript" exclude="iclient-classic" src="../../dist/classic/include-classic.js"></script>
- <script type="text/javascript">
- var map, layer, dataAdded = false,
- host = window.isLocal ? window.server : "https://iserver.supermap.io",
- url = host + "/iserver/services/map-world/rest/maps/World";
- init();
- function init() {
- map = new SuperMap.Map("map", {
- controls: [
- new SuperMap.Control.Zoom(),
- new SuperMap.Control.Navigation(),
- ]
- });
- map.addControl(new SuperMap.Control.LayerSwitcher(), new SuperMap.Pixel(42, 80));
- layer = new SuperMap.Layer.TiledDynamicRESTLayer("World", url, null, {maxResolution: "auto"});
- layer.events.on({"layerInitialized": addLayer});
- vector = new SuperMap.Layer.Vector("vector");
- addData();
- }
- function addLayer() {
- map.addLayers([layer, vector]);
- //显示地图范围
- map.setCenter(new SuperMap.LonLat(0, 0), 0);
- }
- function addData() {
- widgets.alert.clearAlert();
- if (!dataAdded) {
- vector.removeAllFeatures();
- //扇形
- var origion = new SuperMap.Geometry.Point(0, 30);
- var sides = 30;
- var cuvre = SuperMap.Geometry.Polygon.createRegularPolygonCurve(origion, 50, sides, 80, 220);
- var cuvreVector = new SuperMap.Feature.Vector(cuvre);
- //
- cuvreVector.style = {
- strokeColor: "#1E90FF",
- fillColor: new SuperMap.Style.LinearGradient(0.0, 0.0, 1.0, 0.0, [{
- offset: 0.0,
- color: "#C6E2FF",
- opacity: 1
- }, {offset: 1.0, color: "#1E90FF", opacity: 0.6}]),
- strokeWidth: 2,
- fillOpacity: 1
- };
- //椭圆
- var points = createEllipse(100, 0, 50, 25);
- linearRings = new SuperMap.Geometry.LinearRing(points),
- region = new SuperMap.Geometry.Polygon([linearRings]);
- var ellipseVector = new SuperMap.Feature.Vector(region);
- ellipseVector.style = {
- fillColor: new SuperMap.Style.RadialGradient(0.5, 0.5, 0.5, 0.5, 0.5, [{
- offset: 0.0,
- color: "white",
- opacity: 1
- }, {offset: 1.0, color: "#C1FFC1", opacity: 0.6}]),
- strokeColor: "#C1FFC1",
- fillOpacity: 0.9
- };
- //圆
- var centerPoint = new SuperMap.Geometry.Point(-80, 0);
- var circleP = createCircle(centerPoint, 30, 256, 360, 360);
- var circleVector = new SuperMap.Feature.Vector(circleP);
- //
- circleVector.style = {
- strokeColor: "#CAFF70",
- fillColor: new SuperMap.Style.RadialGradient(0.5, 0.5, 0.5, 0.2, 0.3, [{
- offset: 0.0,
- color: "white",
- opacity: 1
- }, {offset: 1.0, color: "#CAFF70", opacity: 0.6}]),
- strokeWidth: 2,
- fillOpacity: 0.8
- };
- vector.addFeatures([cuvreVector, ellipseVector, circleVector]);
- dataAdded = true;
- } else {
- widgets.alert.showAlert(resources.msg_loadedData, true, 240);
- }
- }
- //函数的参数x,y为椭圆中心;a,b分别为椭圆横半轴
- function createEllipse(x, y, a, b) {
- var step = (a > b) ? 1 / a : 1 / b, points = [];
- //step是等于1除以长轴值a和b中的较大者
- //i每次循环增加1/step,表示度数的增加
- //这样可以使得每次循环所绘制的路径(弧线)接近1像素
- for (var i = 0; i < 2 * Math.PI; i += step) {
- //参数方程为x = a * cos(i), y = b * sin(i),
- //参数为i,表示度数(弧度)
- var point = new SuperMap.Geometry.Point(x + a * Math.cos(i), y + b * Math.sin(i));
- points.push(point);
- }
- return points;
- }
- //圆
- function createCircle(origin, radius, sides, r, angel) {
- var rR = r * Math.PI / (180 * sides);
- var rotatedAngle, x, y;
- var points = [];
- for (var i = 0; i < sides; ++i) {
- rotatedAngle = rR * i;
- x = origin.x + (radius * Math.cos(rotatedAngle));
- y = origin.y + (radius * Math.sin(rotatedAngle));
- points.push(new SuperMap.Geometry.Point(x, y));
- }
- rotatedAngle = r * Math.PI / 180;
- x = origin.x + (radius * Math.cos(rotatedAngle));
- y = origin.y + (radius * Math.sin(rotatedAngle));
- points.push(new SuperMap.Geometry.Point(x, y));
- var ring = new SuperMap.Geometry.LinearRing(points);
- ring.rotate(parseFloat(angel), origin);
- var geo = new SuperMap.Geometry.Collection([ring]);
- geo.origin = origin;
- geo.radius = radius;
- geo.r = r;
- geo.angel = angel;
- geo.sides = sides;
- geo.polygonType = "Curve";
- return geo;
- }
- function removeData() {
- widgets.alert.clearAlert();
- dataAdded = false;
- vector.removeAllFeatures();
- vector.refresh();
- }
- </script>
- </body>
- </html>
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