# Vue2olInteractionDragrotate

ol/interaction/DragRotate (opens new window)的 vue 组件

允许用户通过在地图上单击和拖动来旋转地图，默认情况下需要按住 alt 和 shift 键

Since: v1.0.0

# 基础用法

<template>
  <div>
    <select v-model="active" style="width:200px;">
      <option value="1">激活</option>
      <option value="0">取消</option>
    </select>
  </div>
  <vue2ol-map style="height:400px;" :options="mapOptions">
    <vue2ol-view :zoom="zoom" :center="center" :options="viewOptions">
    </vue2ol-view>
    <vue2ol-layer-tile>
      <vue2ol-source-osm></vue2ol-source-osm>
    </vue2ol-layer-tile>
    <vue2ol-interaction-dragrotate
      :active="active == '1'"
    ></vue2ol-interaction-dragrotate>
  </vue2ol-map>
</template>

<script>
import Feature from "ol/Feature";
import Polygon from "ol/geom/Polygon";
export default {
  data() {
    return {
      zoom: 10, //级别
      center: [120, 28], //中心点
      viewOptions: {
        projection: "EPSG:4326" //坐标系
      },
      mapOptions: {
        interactions: []
      },
      active: "0"
    };
  },
  mounted() {}
};
</script>

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# 没有条件

<template>
  <div>
    <select v-model="active" style="width:200px;">
      <option value="1">激活</option>
      <option value="0">取消</option>
    </select>
  </div>
  <vue2ol-map style="height:400px;" :options="mapOptions">
    <vue2ol-view :zoom="zoom" :center="center" :options="viewOptions">
    </vue2ol-view>
    <vue2ol-layer-tile>
      <vue2ol-source-osm></vue2ol-source-osm>
    </vue2ol-layer-tile>
    <vue2ol-interaction-dragrotate
      :active="active == '1'"
      :options="interactionOptions"
    ></vue2ol-interaction-dragrotate>
  </vue2ol-map>
</template>

<script>
import Feature from "ol/Feature";
import Polygon from "ol/geom/Polygon";
export default {
  data() {
    return {
      zoom: 10, //级别
      center: [120, 28], //中心点
      viewOptions: {
        projection: "EPSG:4326" //坐标系
      },
      mapOptions: {
        interactions: []
      },
      active: "0",
      interactionOptions: {
        condition: () => {
          return true;
        }
      }
    };
  },
  mounted() {}
};
</script>

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# Props

名称	描述	类型	取值范围	默认值
properties	属性	object	-
options	对应 openlayers 对象的实例化参数选项,其他没有在 props 中列举的参数，如果有传入 props 并且与默认值不同，则以 props 中的值为准，否则使用 options 中的值	object	-	{}
parentMap	父地图	object	-
active	是否激活	boolean	-

# Events

名称	属性	描述
init	mapObject `import('ol/interaction/DragRotate').default` - 地图元素	地图元素初始化完时触发
append	mapObject `import('ol/interaction/DragRotate').default` - 地图元素	地图元素初始化完时触发
ready	mapObject `import('ol/interaction/DragRotate').default` - 地图元素	地图元素初始化完时触发

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