稀疏空間地圖刪除

EasyAR 提供了兩種方式處理不再需要的空間地圖數據：永久刪除和臨時停用。為了保證生產環境的穩定性，建議您仔細閱讀以下操作說明。

透過 EasyAR Web 刪除

登入 EasyAR 開發中心 ->SpatialMap -> 選擇對應地圖庫 -> 點擊管理進入地圖庫管理介面。
點擊進入空間地圖詳情頁，點擊頁面內的刪除按鈕。

永久刪除操作引導

最佳實踐：臨時停用

在大多數業務場景下，如果您不確定是否未來還會用到某張地圖，推薦使用停用代替刪除。

功能特點：停用後的空間地圖保留在資料庫列表中，但不會參與識別定位過程。但會佔用識別配額。
停用方法：在管理介面勾選識別圖，點擊停用即可。

停用操作引導

API 停用：透過呼叫更新 Spatial Map API，將 status 屬性設定為 inactive。

使用 API 刪除

透過 REST API 可以實現稀疏空間地圖的自動化清理。

準備工作

開始前請閱讀刪除 Spatial Map API 文件，並準備好以下資源：

Spatial Map AppId
API Key / Secret 或 Token
Cloud URL
- 中國和東南亞使用者選擇: https://armap-api.easyar.com
- 其它使用者選擇: https://armap-api-na1.easyar.com
MapId：待刪除地圖的唯一 ID。若 MapId 不存在，API 將返回 Http Status 404 。

請替換佔位符為實際參數，並運行 curl 腳本

Your-Cloud-URL → 實際 API URLs
Your-Token → 實際的 API Key Authorization Token
Your-SpatialMap-AppId → 您的 appId
Your-todo-MapId → 待刪除 MapId

curl -X DELETE "https://armap-api-<cn1|na1>.easyar.com/map/<Your-todo-MapId>?appId=<Your-SpatialMap-AppId>" \
  -H "Content-Type: application/json" \
  -H "Authorization: <Your-Token>"

下載 Java 示例代碼

Java Samples Download

通過 Maven 方式導入項目

Step 1. 打開代碼示例 RemoveMap.java

Step 2. 修改全域變量，替換你準備清單裡的認證參數

SpatialMap AppId
API Key / API Secret
Cloud URL

RemoveMap.java

import okhttp3.*;
import org.json.JSONObject;
import java.io.IOException;
import java.util.Set;

public class RemoveMap {

    private static final String CLOUD_URL       = "https://armap-api-<cn1|na1>.easyar.com";
    private static final String SPATIALMAP_APPID= "--here is your SpatialMap AppId--";
    private static final String API_KEY         = "--here is your API Key--";
    private static final String API_SECRET      = "--here is your API Secret--";
    private static final String MAPID           = "my_mapId";

    public String remove(Auth auth, String mapId) throws IOException {
        okhttp3.Request request = new okhttp3.Request.Builder()
                .url(auth.getCloudURL()+"/map/"+mapId+"?"+ Auth.toParam(
                        Auth.signParam(new JSONObject(), auth.getAppId(), auth.getApiKey(), auth.getApiSecret())
                ))
                .delete()
                .build();
        return new OkHttpClient.Builder().build().newCall(request).execute().body().string();
    }

    public static void main(String[] args) throws IOException{
        Auth accessInfo  =  new Auth(SPATIALMAP_APPID, API_KEY, API_SECRET, CLOUD_URL);
        System.out.println(new RemoveMap().remove(accessInfo, MAPID));
    }
}

Step 3. 運行 Main

Step 1. 範例程式碼複製到 removemap.php

修改鑑權參數為您實際資源：Token，appId 以及 Cloud URL
待刪除的地圖 MapId

<?php
class MapDeleteService {
    private $baseURL;
    private $token;
    private $appId;
    
    public function __construct($baseURL, $token, $appId) {
        $this->baseURL = $baseURL;
        $this->token = $token;
        $this->appId = $appId;
    }
    
    public function deleteMap($mapId) {
        // 構建查詢參數
        $queryParams = [
            'appId' => $this->appId
        ];
        
        $queryString = http_build_query($queryParams);
        $url = $this->baseURL . '/map/' . urlencode($mapId) . '?' . $queryString;
        
        $ch = curl_init();
        curl_setopt_array($ch, [
            CURLOPT_URL => $url,
            CURLOPT_CUSTOMREQUEST => 'DELETE',
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_HTTPHEADER => [
                'Authorization: ' . $this->token,
                'Content-Type: application/json'
            ],
            CURLOPT_SSL_VERIFYPEER => false,
            CURLOPT_TIMEOUT => 30
        ]);
        
        echo "=== API Request ===" . PHP_EOL;
        echo "URL: " . $url . PHP_EOL;
        echo "Method: DELETE" . PHP_EOL;
        echo "Headers: Authorization: " . $this->token . PHP_EOL;
        echo "Query Params: " . json_encode($queryParams, JSON_PRETTY_PRINT) . PHP_EOL;
        
        $response = curl_exec($ch);
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $error = curl_error($ch);
        
        curl_close($ch);
        
        echo "=== API Response ===" . PHP_EOL;
        echo "Status Code: " . $httpCode . PHP_EOL;
        echo "Timestamp: " . date('c') . PHP_EOL;
        
        if ($error) {
            echo "cURL Error: " . $error . PHP_EOL;
            return null;
        }
        
        $responseData = json_decode($response, true);
        echo "Response Data: " . json_encode($responseData, JSON_PRETTY_PRINT) . PHP_EOL;
        
        return $responseData;
    }
}


$mapId = 'your_map_id_here';
$config = [
    'baseURL' => 'https://armap-api-cn1.easyar.com',
    'token' => 'your_token_here',
    'appId' => 'your_app_id_here'
];

$mapDeleteService = new MapDeleteService($config['baseURL'], $config['token'], $config['appId']);

$result = $mapDeleteService->deleteMap($mapId);

if ($result) {
    echo PHP_EOL . "=== 刪除請求成功 ===" . PHP_EOL;
    if (isset($result['statusCode']) && $result['statusCode'] == 200) {
        echo "Result: " . json_encode($result['result'], JSON_PRETTY_PRINT) . PHP_EOL;
    }
} else {
    echo PHP_EOL . "=== Failed ===" . PHP_EOL;
}
?>

Step 2. 執行

php removemap.php

新建相關代碼文件 main.go，修改全局變量，然後運行

go run main.go

main.go:

package main

import (
  "crypto/sha256"
  "fmt"
  "io"
  "net/http"
  "sort"
  "strconv"
  "time"
)

var (
  ApiKey    = "YOUR_API_KEY"
  ApiSecret = "YOUR_API_SECRET"
  AppId     = "YOUR_APP_ID"
  Host      = "https://armap-api-<cn1|na1>.easyar.com"
  MapId     = "YOUR_MAP_ID"
)

func main() {
  ts := strconv.FormatInt(time.Now().UnixNano()/1e6, 10)
  params := map[string]string{
    "apiKey":    ApiKey,
    "appId":     AppId,
    "timestamp": ts,
  }

  keys := []string{"apiKey", "appId", "timestamp"}
  sort.Strings(keys)

  builder := ""
  for _, k := range keys { builder += k + params[k] }
  builder += ApiSecret

  signature := fmt.Sprintf("%x", sha256.Sum256([]byte(builder)))

  url := fmt.Sprintf("%s/map/%s?apiKey=%s&appId=%s&timestamp=%s&signature=%s", 
    Host, MapId, ApiKey, AppId, ts, signature)
  
  req, _ := http.NewRequest("DELETE", url, nil)
  resp, _ := http.DefaultClient.Do(req)
  defer resp.Body.Close()
  
  body, _ := io.ReadAll(resp.Body)
  fmt.Printf("Response: %s\n", string(body))
}

在 Cargo.toml 中添加 reqwest, tokio, sha2, hex 依賴。

執行 cargo run。

use sha2::{Sha256, Digest};
use std::collections::BTreeMap;
use std::time::{SystemTime, UNIX_EPOCH};

const API_KEY: &str = "YOUR_API_KEY";
const API_SECRET: &str = "YOUR_API_SECRET";
const APP_ID: &str = "YOUR_APP_ID";
const HOST: &str = "https://armap-api-<cn1|na1>.easyar.com";
const MAP_ID: &str = "YOUR_MAP_ID";

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let ts = SystemTime::now().duration_since(UNIX_EPOCH)?.as_millis().to_string();

    // 1. 簽名組件
    let mut params = BTreeMap::new();
    params.insert("apiKey", API_KEY);
    params.insert("appId", APP_ID);
    params.insert("timestamp", &ts);

    // 2. 串接鍵與值，然後附加密鑰
    let mut sign_str = String::new();
    for (k, v) in &params {
        sign_str.push_str(k);
        sign_str.push_str(v);
    }
    sign_str.push_str(API_SECRET);
    
    let mut hasher = Sha256::new();
    hasher.update(sign_str.as_bytes());
    let signature = hex::encode(hasher.finalize());

    // 3. 構建 URL 並發送 DELETE
    let url = format!("{}/map/{}?apiKey={}&appId={}&timestamp={}&signature={}", 
                      HOST, MAP_ID, API_KEY, APP_ID, ts, signature);
    
    let res = reqwest::Client::new().delete(url).send().await?;
    println!("Response: {}", res.text().await?);
    Ok(())
}

創建 .NET 控制台專案。

dotnet new console
dotnet run

using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Net.Http;

class Program {
    static string API_KEY = "YOUR_API_KEY";
    static string API_SECRET = "YOUR_API_SECRET";
    static string APP_ID = "YOUR_APP_ID";
    static string HOST = "https://armap-api-<cn1|na1>.easyar.com";
    static string MAP_ID = "YOUR_MAP_ID";

    static async System.Threading.Tasks.Task Main() {
        string timestamp = DateTimeOffset.Now.ToUnixTimeMilliseconds().ToString();

        // 1. Sort parameters
        var dict = new SortedDictionary<string, string> {
            { "apiKey", API_KEY },
            { "appId", APP_ID },
            { "timestamp", timestamp }
        };

        // 2. Concatenate and append Secret
        StringBuilder sb = new StringBuilder();
        foreach (var kv in dict) sb.Append(kv.Key).Append(kv.Value);
        sb.Append(API_SECRET);
        
        string signature = Sha256(sb.ToString());

        // 3. Execute DELETE request
        using var client = new HttpClient();
        string query = string.Join("&", dict.Select(x => $"{x.Key}={x.Value}")) + $"&signature={signature}";
        string url = $"{HOST}/map/{MAP_ID}?{query}";
        
        var response = await client.DeleteAsync(url);
        Console.WriteLine($"Result: {await response.Content.ReadAsStringAsync()}");
    }

    static string Sha256(string str) {
        byte[] bytes = SHA256.HashData(Encoding.UTF8.GetBytes(str));
        return BitConverter.ToString(bytes).Replace("-", "").ToLower();
    }
}

運行環境
- Unity 2020 LTS 以上版本
- Scripting Backend：Mono 或 IL2CPP 均可
- API Compatibility Level：.NET Standard 2.1（推薦）

Step 1：準備圖片文件

Assets/
└── Scripts/
     └── DeleteMap.cs

依照 Assets 目錄名稱
- 複製下方範例程式碼 DeleteMap.cs

using System.Collections;
using UnityEngine;
using UnityEngine.Networking;

public class DeleteMap : MonoBehaviour
{
    [Header("Config")]
    public string mapId = "Your mapId";
    public string apiBaseUrl = "https://armap-api-<cn1|na1>.easyar.com";
    public string authorizationToken = "YOUR API KEY AUTH TOKEN"; 
    public string spatialMapAppId = "Your Spatial Map appId"; 
    
    private void Start()
    {
        StartCoroutine(DeleteAMap());
    }

    private IEnumerator DeleteAMap()
    {
     
        string url =
            $"{apiBaseUrl}/map/{mapId}?appId={spatialMapAppId}";

        UnityWebRequest request = UnityWebRequest.Delete(url);
        request.downloadHandler = new DownloadHandlerBuffer();

        request.SetRequestHeader("Content-Type", "application/json");
        request.SetRequestHeader("Authorization", authorizationToken);

        yield return request.SendWebRequest();

        if (request.result == UnityWebRequest.Result.Success)
        {
            Debug.Log("Delete map success:");
            Debug.Log(request.downloadHandler.text);
        }
        else
        {
            Debug.LogError("Delete map failed:");
            Debug.LogError(request.error);
            Debug.LogError(request.downloadHandler.text);
        }
    }
}

在 Unity Editor 中：
- 建立一個空 GameObject
- 命名為 DeleteMap
- 將 DeleteMap 腳本拖曳到該物件上

Step 3：設定參數（Inspector）

在 Inspector 面板中修改：
- Api Url
- Authorization Token
- Spatial Map App Id
- Map Id : 待刪除地圖 mapId
只需修改這幾項即可執行，填入準備清單備妥的參數

Step 4：執行

點選 Play
在 Console 中檢視結果：
- 成功：回傳 JSON（含 result）
- 失敗：HTTP / 錯誤訊息

相關主題：

Table of Contents

稀疏空間地圖刪除

透過 EasyAR Web 刪除

最佳實踐：臨時停用

使用 API 刪除

準備工作