Azure Maps - 如何将地图线图层置于编辑模式？
Azure Maps - How to put a map line layer into edit mode?
我创建了一个线图层并将其添加到地图中。
但我随后需要将该线图层置于编辑模式，用户可以拉伸和操作该线，或者我添加到地图中的任何形状。
我能在 MS Docs 中找到的唯一参考是如何将 'shape' 置于编辑模式，但这似乎并不相关，在尝试了他们的示例之后，对我来说没有任何用处。
//Create a data source and add it to the map.
var dataSource = new atlas.source.DataSource();
map.sources.add(dataSource);
//Create a line and add it to the data source.
dataSource.add(new atlas.data.LineString([[-73.972340, 40.743270], [-74.004420, 40.756800]]));
//Create a line layer to render the line to the map.
map.layers.add(new atlas.layer.LineLayer(dataSource, null, {
strokeColor: 'blue',
strokeWidth: 5
}));
上面的代码创建了线，将其渲染到地图上，但是当 clicking/hovering 越过线时，我无法 select 对其进行编辑，确实需要一些有关缺少代码的帮助去做这个。谢谢
我认为您需要为此使用绘图模块。它允许您通过将模式设置为 edit-geometry.
来创建 DrawingManager 来编辑形状
我用 LineString 对您的示例进行了一些修改，以便在地图准备就绪时自动将其置于编辑状态。
<!DOCTYPE html>
<html lang="en">
<head>
<title>AzureMaps</title>
<meta charset="utf-8" />
<link rel="shortcut icon" href="/favicon.ico" />
<meta http-equiv="x-ua-compatible" content="IE=Edge" />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
<!-- Add references to the Azure Maps Map control JavaScript and CSS files. -->
<link rel="stylesheet" href="https://atlas.microsoft.com/sdk/javascript/mapcontrol/2/atlas.min.css"
type="text/css" />
<link rel="stylesheet" href="https://atlas.microsoft.com/sdk/javascript/drawing/1/atlas-drawing.min.css"
type="text/css" />
<script src="https://atlas.microsoft.com/sdk/javascript/mapcontrol/2/atlas.min.js"></script>
<script src="https://atlas.microsoft.com/sdk/javascript/drawing/1/atlas-drawing.min.js"></script>
<script type='text/javascript'>
function GetMap() {
//Initialize a map instance.
const map = new atlas.Map('myMap', {
view: 'Auto',
center: [-73.972340, 40.743270],
zoom: 13,
//Add your Azure Maps key to the map SDK. Get an Azure Maps key at https://azure.com/maps. NOTE: The primary key should be used as the key.
authOptions: {
authType: 'subscriptionKey',
subscriptionKey: '<enter-your-subscription-key>'
}
});
map.events.add('ready', () => {
//Create a data source and add it to the map.
var dataSource = new atlas.source.DataSource();
map.sources.add(dataSource);
const lineString = new atlas.data.LineString([[-73.972340, 40.743270], [-74.004420, 40.756800]]);
//Create a line and add it to the data source.
dataSource.add(lineString);
const lineStringShape = dataSource.getShapes()[0];
//Create a line layer to render the line to the map.
map.layers.add(new atlas.layer.LineLayer(dataSource, null, {
strokeColor: 'blue',
strokeWidth: 5
}));
var drawingManager = new atlas.drawing.DrawingManager(map, {
mode: 'edit-geometry'
});
drawingManager.edit(lineStringShape);
});
}
</script>
</head>
<body onload="GetMap()">
<div id="myMap" style="position:relative;width:100%;min-width:290px;height:600px;"></div>
</body>
</html>
重要的是，您需要参考图集绘图脚本和样式：
<script src="https://atlas.microsoft.com/sdk/javascript/drawing/1/atlas-drawing.min.js"></script>
<link rel="stylesheet" href="https://atlas.microsoft.com/sdk/javascript/drawing/1/atlas-drawing.min.css"
type="text/css" />
您可以在绘图管理器上找到更多信息 here。
编辑 - 仅更改颜色和宽度
如果您只想更改线串的 strokeColor 和 strokeWidth，您实际上不需要绘图管理器。我建议在线层的 strokeColor 和 strokeWidth 上设置表达式，以从每个形状的属性中读取值。
以下示例显示两个具有不同宽度和颜色的线串：
//Initialize a map instance.
const map = new atlas.Map('myMap', {
view: 'Auto',
center: [-73.972340, 40.743270],
zoom: 13,
//Add your Azure Maps key to the map SDK. Get an Azure Maps key at https://azure.com/maps. NOTE: The primary key should be used as the key.
authOptions: {
authType: 'subscriptionKey',
subscriptionKey: '<enter-your-subscription-key>'
}
});
map.events.add('ready', () => {
//Create a data source and add it to the map.
const dataSource = new atlas.source.DataSource();
map.sources.add(dataSource);
const firstLineString = new atlas.data.LineString([[-73.972340, 40.743270], [-74.004420, 40.756800]]);
const secondLineString = new atlas.data.LineString([[-73.972340, 40.733270], [-74.004420, 40.746800]]);
//Create a line and add it to the data source.
dataSource.add(firstLineString);
dataSource.add(secondLineString);
//Add properties on the shapes
const shapes = dataSource.getShapes()
const firstLineStringShape = shapes[0];
firstLineStringShape.addProperty('color', '#ed5a10');
firstLineStringShape.addProperty('strokeWidth', 10);
const secondLineStringShape = shapes[1];
secondLineStringShape.addProperty('color', '#0e41ea');
secondLineStringShape.addProperty('strokeWidth', 5);
//Create a line layer to render the line to the map.
//strokeColor and strokeWidth are defined on the properties of each line string
map.layers.add(new atlas.layer.LineLayer(dataSource, null, {
strokeColor: ['get', 'color'],
strokeWidth: ['get', 'strokeWidth']
}));
});
为方便起见，在本例中地图准备就绪时仍会完成，但如果您的 属性 是从不设置，或 getProperties 和 setProperties.
的组合
您可以在此处找到有关数据驱动表达式的更多信息：https://docs.microsoft.com/en-us/azure/azure-maps/data-driven-style-expressions-web-sdk
我创建了一个线图层并将其添加到地图中。
但我随后需要将该线图层置于编辑模式，用户可以拉伸和操作该线，或者我添加到地图中的任何形状。
我能在 MS Docs 中找到的唯一参考是如何将 'shape' 置于编辑模式，但这似乎并不相关，在尝试了他们的示例之后，对我来说没有任何用处。
//Create a data source and add it to the map.
var dataSource = new atlas.source.DataSource();
map.sources.add(dataSource);
//Create a line and add it to the data source.
dataSource.add(new atlas.data.LineString([[-73.972340, 40.743270], [-74.004420, 40.756800]]));
//Create a line layer to render the line to the map.
map.layers.add(new atlas.layer.LineLayer(dataSource, null, {
strokeColor: 'blue',
strokeWidth: 5
}));
上面的代码创建了线，将其渲染到地图上，但是当 clicking/hovering 越过线时，我无法 select 对其进行编辑，确实需要一些有关缺少代码的帮助去做这个。谢谢
我认为您需要为此使用绘图模块。它允许您通过将模式设置为 edit-geometry.
DrawingManager 来编辑形状
我用 LineString 对您的示例进行了一些修改，以便在地图准备就绪时自动将其置于编辑状态。
<!DOCTYPE html>
<html lang="en">
<head>
<title>AzureMaps</title>
<meta charset="utf-8" />
<link rel="shortcut icon" href="/favicon.ico" />
<meta http-equiv="x-ua-compatible" content="IE=Edge" />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
<!-- Add references to the Azure Maps Map control JavaScript and CSS files. -->
<link rel="stylesheet" href="https://atlas.microsoft.com/sdk/javascript/mapcontrol/2/atlas.min.css"
type="text/css" />
<link rel="stylesheet" href="https://atlas.microsoft.com/sdk/javascript/drawing/1/atlas-drawing.min.css"
type="text/css" />
<script src="https://atlas.microsoft.com/sdk/javascript/mapcontrol/2/atlas.min.js"></script>
<script src="https://atlas.microsoft.com/sdk/javascript/drawing/1/atlas-drawing.min.js"></script>
<script type='text/javascript'>
function GetMap() {
//Initialize a map instance.
const map = new atlas.Map('myMap', {
view: 'Auto',
center: [-73.972340, 40.743270],
zoom: 13,
//Add your Azure Maps key to the map SDK. Get an Azure Maps key at https://azure.com/maps. NOTE: The primary key should be used as the key.
authOptions: {
authType: 'subscriptionKey',
subscriptionKey: '<enter-your-subscription-key>'
}
});
map.events.add('ready', () => {
//Create a data source and add it to the map.
var dataSource = new atlas.source.DataSource();
map.sources.add(dataSource);
const lineString = new atlas.data.LineString([[-73.972340, 40.743270], [-74.004420, 40.756800]]);
//Create a line and add it to the data source.
dataSource.add(lineString);
const lineStringShape = dataSource.getShapes()[0];
//Create a line layer to render the line to the map.
map.layers.add(new atlas.layer.LineLayer(dataSource, null, {
strokeColor: 'blue',
strokeWidth: 5
}));
var drawingManager = new atlas.drawing.DrawingManager(map, {
mode: 'edit-geometry'
});
drawingManager.edit(lineStringShape);
});
}
</script>
</head>
<body onload="GetMap()">
<div id="myMap" style="position:relative;width:100%;min-width:290px;height:600px;"></div>
</body>
</html>
重要的是，您需要参考图集绘图脚本和样式：
<script src="https://atlas.microsoft.com/sdk/javascript/drawing/1/atlas-drawing.min.js"></script>
<link rel="stylesheet" href="https://atlas.microsoft.com/sdk/javascript/drawing/1/atlas-drawing.min.css"
type="text/css" />
您可以在绘图管理器上找到更多信息 here。
编辑 - 仅更改颜色和宽度
如果您只想更改线串的 strokeColor 和 strokeWidth，您实际上不需要绘图管理器。我建议在线层的 strokeColor 和 strokeWidth 上设置表达式，以从每个形状的属性中读取值。
以下示例显示两个具有不同宽度和颜色的线串：
//Initialize a map instance.
const map = new atlas.Map('myMap', {
view: 'Auto',
center: [-73.972340, 40.743270],
zoom: 13,
//Add your Azure Maps key to the map SDK. Get an Azure Maps key at https://azure.com/maps. NOTE: The primary key should be used as the key.
authOptions: {
authType: 'subscriptionKey',
subscriptionKey: '<enter-your-subscription-key>'
}
});
map.events.add('ready', () => {
//Create a data source and add it to the map.
const dataSource = new atlas.source.DataSource();
map.sources.add(dataSource);
const firstLineString = new atlas.data.LineString([[-73.972340, 40.743270], [-74.004420, 40.756800]]);
const secondLineString = new atlas.data.LineString([[-73.972340, 40.733270], [-74.004420, 40.746800]]);
//Create a line and add it to the data source.
dataSource.add(firstLineString);
dataSource.add(secondLineString);
//Add properties on the shapes
const shapes = dataSource.getShapes()
const firstLineStringShape = shapes[0];
firstLineStringShape.addProperty('color', '#ed5a10');
firstLineStringShape.addProperty('strokeWidth', 10);
const secondLineStringShape = shapes[1];
secondLineStringShape.addProperty('color', '#0e41ea');
secondLineStringShape.addProperty('strokeWidth', 5);
//Create a line layer to render the line to the map.
//strokeColor and strokeWidth are defined on the properties of each line string
map.layers.add(new atlas.layer.LineLayer(dataSource, null, {
strokeColor: ['get', 'color'],
strokeWidth: ['get', 'strokeWidth']
}));
});
为方便起见，在本例中地图准备就绪时仍会完成，但如果您的 属性 是从不设置，或 getProperties 和 setProperties.
您可以在此处找到有关数据驱动表达式的更多信息：https://docs.microsoft.com/en-us/azure/azure-maps/data-driven-style-expressions-web-sdk