Javascript 如何从地图外部将对象拖放到Mapbox地图中?
如何在外部创建可以拖动到其中的元素?例如,假设我想要呈现页面上的位置列表。每个位置都是带有自定义标记或图标的React组件 此位置列表旁边是地图框地图。位置列表不会在地图内渲染。虽然我知道可以拖动这些单独的位置组件,但是否可以将它们拖放到Mapbox地图中,并将其识别为地图上具有纬度/经度坐标的实际标记?如果是,我该怎么做 以下是我尝试过的代码中的相关源文件: index.jsJavascript 如何从地图外部将对象拖放到Mapbox地图中?,javascript,reactjs,mapbox,next.js,mapbox-gl-js,Javascript,Reactjs,Mapbox,Next.js,Mapbox Gl Js,如何在外部创建可以拖动到其中的元素?例如,假设我想要呈现页面上的位置列表。每个位置都是带有自定义标记或图标的React组件 此位置列表旁边是地图框地图。位置列表不会在地图内渲染。虽然我知道可以拖动这些单独的位置组件,但是否可以将它们拖放到Mapbox地图中,并将其识别为地图上具有纬度/经度坐标的实际标记?如果是,我该怎么做 以下是我尝试过的代码中的相关源文件: index.js import dynamic from "next/dynamic"; import { useS
import dynamic from "next/dynamic";
import { useSelector } from "react-redux";
import Plant from "../../components/Plant";
const MapboxMap = dynamic(() => import("../../components/MapboxGLMap"), {
ssr: false,
});
const Blueprint = () => {
const plants = useSelector((state) => state.plants);
const showPlants = () => {
return (
<React.Fragment>
{plants.map((plant) => (
<Plant plant={plant} />
))}
</React.Fragment>
);
};
return (
<React.Fragment>
<div className="ui container centered grid blueprint">
<div className="three wide column scrollable">
<div className="ui link one cards">{showPlants()}</div>
</div>
<div className="twelve wide column">
<MapboxMap />
</div>
<style jsx>{`
.scrollable {
height: calc(100vh);
overflow-x: auto;
}
`}</style>
</React.Fragment>
);
};
export default Blueprint;
从“下一个/动态”导入动态;
从“react redux”导入{useSelector};
从“../../components/Plant”导入设备;
const MapboxMap=dynamic(()=>import(“../../components/MapboxGLMap”){
ssr:错,
});
常量蓝图=()=>{
const plants=useSelector((state)=>state.plants);
const showPlants=()=>{
返回(
{plants.map((plant)=>(
))}
);
};
返回(
{showPlants()}
{`
.可滚动{
高度:计算(100vh);
溢出-x:自动;
}
`}
);
};
导出默认蓝图;
Plant.jsx
import React from "react";
import { useDrag } from "react-dnd";
const ItemTypes = {
PLANT: "plant",
};
const Plant = ({ plant }) => {
const [{ isDragging }, drag] = useDrag({
item: { type: ItemTypes.PLANT },
collect: (monitor) => ({
isDragging: !!monitor.isDragging(),
}),
});
return (
<div
ref={drag}
style={{
opacity: isDragging ? 0.1 : 1,
cursor: "move",
}}
key={plant.id}
className="card"
>
<div className="image">
<img src="/white-image.png" />
</div>
<div className="content">
<div className="center aligned">{plant.common_name}</div>
</div>
</div>
);
};
export default Plant;
import React, { useEffect, useRef, useState } from "react";
import mapboxgl from "mapbox-gl";
import MapboxGeocoder from "@mapbox/mapbox-gl-geocoder";
import MapboxDraw from "@mapbox/mapbox-gl-draw";
const MAPBOX_TOKEN = "xxx";
const styles = {
width: "100%",
height: "100%",
position: "absolute",
};
const MapboxGLMap = () => {
const [map, setMap] = useState(null);
const [lng, setLng] = useState(null);
const [lat, setLat] = useState(null);
const [plant, setPlant] = useState(null);
const mapContainer = useRef(null);
useEffect(() => {
mapboxgl.accessToken = MAPBOX_TOKEN;
const initializeMap = ({ setMap, mapContainer }) => {
const map = new mapboxgl.Map({
container: mapContainer.current,
style: "mapbox://styles/mapbox/satellite-v9", // stylesheet location
center: [0, 0],
zoom: 5,
});
map.on("load", () => {
setMap(map);
map.resize();
});
map.on("click", (e) => {});
map.addControl(
new MapboxGeocoder({
accessToken: MAPBOX_TOKEN,
mapboxgl: mapboxgl,
})
);
const draw = new MapboxDraw({
displayControlsDefault: false,
controls: {
polygon: true,
trash: true,
},
});
map.addControl(draw);
map.on("draw.create", (e) => {
console.log("e =>", e);
console.log("draw.getAll()", draw.getAll());
});
map.on("mousemove", (e) => {
// console.log(e.point);
setLng(e.lngLat.wrap().lng);
setLat(e.lngLat.wrap().lat);
});
};
if (!map) initializeMap({ setMap, mapContainer });
}, [map]);
return <div ref={(el) => (mapContainer.current = el)} style={styles} />;
};
export default MapboxGLMap;
从“React”导入React;
从“react dnd”导入{useDrag};
常量项类型={
植物:“植物”,
};
常量植物=({Plant})=>{
常量[{isDraging},拖动]=使用拖动({
项:{type:ItemTypes.PLANT},
收集:(监视器)=>({
IsDraging:!!monitor.IsDraging(),
}),
});
返回(
{plant.common_name}
);
};
出口默认设备;
MapboxGLMap.jsx
import React from "react";
import { useDrag } from "react-dnd";
const ItemTypes = {
PLANT: "plant",
};
const Plant = ({ plant }) => {
const [{ isDragging }, drag] = useDrag({
item: { type: ItemTypes.PLANT },
collect: (monitor) => ({
isDragging: !!monitor.isDragging(),
}),
});
return (
<div
ref={drag}
style={{
opacity: isDragging ? 0.1 : 1,
cursor: "move",
}}
key={plant.id}
className="card"
>
<div className="image">
<img src="/white-image.png" />
</div>
<div className="content">
<div className="center aligned">{plant.common_name}</div>
</div>
</div>
);
};
export default Plant;
import React, { useEffect, useRef, useState } from "react";
import mapboxgl from "mapbox-gl";
import MapboxGeocoder from "@mapbox/mapbox-gl-geocoder";
import MapboxDraw from "@mapbox/mapbox-gl-draw";
const MAPBOX_TOKEN = "xxx";
const styles = {
width: "100%",
height: "100%",
position: "absolute",
};
const MapboxGLMap = () => {
const [map, setMap] = useState(null);
const [lng, setLng] = useState(null);
const [lat, setLat] = useState(null);
const [plant, setPlant] = useState(null);
const mapContainer = useRef(null);
useEffect(() => {
mapboxgl.accessToken = MAPBOX_TOKEN;
const initializeMap = ({ setMap, mapContainer }) => {
const map = new mapboxgl.Map({
container: mapContainer.current,
style: "mapbox://styles/mapbox/satellite-v9", // stylesheet location
center: [0, 0],
zoom: 5,
});
map.on("load", () => {
setMap(map);
map.resize();
});
map.on("click", (e) => {});
map.addControl(
new MapboxGeocoder({
accessToken: MAPBOX_TOKEN,
mapboxgl: mapboxgl,
})
);
const draw = new MapboxDraw({
displayControlsDefault: false,
controls: {
polygon: true,
trash: true,
},
});
map.addControl(draw);
map.on("draw.create", (e) => {
console.log("e =>", e);
console.log("draw.getAll()", draw.getAll());
});
map.on("mousemove", (e) => {
// console.log(e.point);
setLng(e.lngLat.wrap().lng);
setLat(e.lngLat.wrap().lat);
});
};
if (!map) initializeMap({ setMap, mapContainer });
}, [map]);
return <div ref={(el) => (mapContainer.current = el)} style={styles} />;
};
export default MapboxGLMap;
import React,{useffect,useRef,useState}来自“React”;
从“mapbox gl”导入mapboxgl;
从“@mapbox/mapbox gl geocoder”导入MapboxGeocoder;
从“@mapbox/mapbox gl draw”导入MapboxDraw;
const MAPBOX_TOKEN=“xxx”;
常量样式={
宽度:“100%”,
高度:“100%”,
位置:“绝对”,
};
常量MapboxGLMap=()=>{
const[map,setMap]=useState(null);
const[lng,setLng]=useState(空);
const[lat,setLat]=useState(null);
const[plant,setPlant]=useState(null);
const mapContainer=useRef(null);
useffect(()=>{
mapboxgl.accessToken=MAPBOX\u标记;
const initializeMap=({setMap,mapContainer})=>{
常量映射=新的mapboxgl.map({
容器:mapContainer.current,
样式:“mapbox://styles/mapbox/satellite-v9“,//样式表位置
中间:[0,0],
缩放:5,
});
map.on(“加载”,()=>{
setMap(map);
map.resize();
});
map.on(“点击“,(e)=>{});
map.addControl(
新MapboxGeocoder({
accessToken:MAPBOX\u标记,
mapboxgl:mapboxgl,
})
);
const draw=新建MapboxDraw({
displayControlsDefault:false,
控制:{
多边形:是的,
垃圾:没错,
},
});
map.addControl(draw);
映射到(“绘制.创建”,(e)=>{
log(“e=>”,e);
log(“draw.getAll(),draw.getAll());
});
map.on(“mousemove”,(e)=>{
//控制台日志(e.point);
设置液化天然气(如液化天然气包裹);
setLat(e.lngLat.wrap().lat);
});
};
if(!map)初始化映射({setMap,mapContainer});
},[地图];
return(mapContainer.current=el)}style={styles}/>;
};
导出默认MapboxGLMap;
事实上,根据你的相关标签,我想象你想把像pin这样的东西从外面拖放到地图区域。您使用reactjs
标记,这意味着您想通过使用reactjs来实现
为此,您应通过npm或以下方式安装Mapbox:
npm install mapbox-gl --save
或
然后,应将贴图框区域包装在放置区域中。为此,您可以使用。通过以下命令安装它:
npm install react-dropzone --save
或
将以下行添加到HTML模板:
然后按如下方式使用:
从“React”导入React;
从“react Dropzone”导入Dropzone;
从“mapbox gl”导入mapboxgl;
mapboxgl.accessToken='MAPBOX\u ACCESS\u TOKEN';
类MapComponent扩展了React.Component{
建造师(道具){
超级(道具);
此.state={
液化天然气:5,
拉脱维亚:34,
缩放:2,
};
}
componentDidMount(){
常量映射=新的mapboxgl.map({
容器:this.mapContainer,
风格:'mapbox://styles/mapbox/streets-v11',
中心:[this.state.lng,this.state.lat],
zoom:this.state.zoom,
});
map.on('move',()=>{
这是我的国家({
lng:map.getCenter().lng.toFixed(4),
lat:map.getCenter().lat.toFixed(4),
缩放:map.getZoom().toFixed(2),
});
});
}
render(){
返回(
{({getRootProps,getInputProps})=>(
{
this.mapContainer=el;
}}
/>
)}
);
}
}
通过使用这种方法,您可以放置一些图像并获得它,然后根据放置位置将其显示在地图上
注意:将捕获的文件类型减少为图像文件类型,如
jpg
/png
您必须将您尝试过的代码从您的endHey发布。您是如何使用Mapbox获得react dnd
的?我可以看到您在组件上使用了拖动,但是您如何管理地图上的拖放操作?谢谢。这将允许他们将对象拖到地图中的特定点上吗?@通配符,事实上,这是可能的,但地图中的特定点应该在视图端口中。一旦将其拖到地图中的特定点上,如何在该特定点上显示标记?我不确定地图是否正确