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Mapray Cloudのデータを表示する - PointCloud -

3D Datasetに続いて、Mapray Cloudに保存されているPointCloudを表示します。 おなじく、第1章でアップロードしたデータを表示してみます。

DataのID

Mapray Cloudに保存されているデータは全てIDで管理されています。 PointCloudも例外ではありません。 Mapray CloudでMapray Cloudの点群データをアップロードしてみようでアップロードした、 東京タワーの点群データのIDを調べてください。

以下のプログラムの

<YOUR_POINTCLOUD_ID>

を調べたIDで置き換えてください。

PointCloudのダウンロードと表示

mapray.cloud.CloudApiV2.getPointCloudDatasetAsResourceを使うと、ID番号で自動的にmapray.Resourceとしてデータをダウンロードします。 実際はデータはmapray.PointCloudDatasetResource型で取得されており、mapray.Resourceで抽象化されています。 これをmapray.StandardPointCloudProviderを使って、データプロバイダを作成し、mapray.StandardUIViewer.Viewer.point_cloud_collection.addで 以下のように

uividwer.viewer.point_cloud_collection.add( provider );
Collectionに加えます。

Note

大規模データを扱うPointCloudとBilldingはCollectionという概念でデータをまとめます。

Note

Tile化されたデータ、Image, PointCloud, Bilding, DEMはDataProviderという概念でデータを取得します。

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<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <script src="https://resource.mapray.com/mapray-js/v0.9.6/mapray.min.js"></script>
        <script src="https://resource.mapray.com/ui/v0.9.6/maprayui.min.js"></script>
        <link rel="stylesheet" href="https://resource.mapray.com/styles/v1/mapray.css">
        <style>
            html, body, div#mapray-container { margin: 0; padding: 0; height: 100%; }
        </style>
    </head>

    <body>
        <div id="mapray-container"></div>
    </body>

    <script>
    // Set up your apikey, which can be created in Mapray Cloud.
      const apikey = "<YOUR_MAPRAY_API_KEY>";
       const BaseMapType = {
            PHOTO: 'photo',
            STANDARD: 'standard'
        };

        const TimeType = {
            DAYTIME: 'daytime',
            NIGHTTIME: 'nighttime'
        };

        const CloudData = {
            threeD: "<YOUR_3D_DATASET_ID>", // 3D DatasetのID
            pointCloud: "<YOUR_POINTCLOUD_ID>" // PointCloudのID
        }

        class CustomViewer extends maprayui.StandardUIViewer {
            constructor(container, api_key, options = {}) {
                super(container, api_key, options);
                this.elapsedTime = 0;  // Pin作成時間計算用
                this.latValue = 0;
                this.totalTime = 0;  // 起動からの累積時間

                this._render_mode = mapray.Viewer.RenderMode.SURFACE; // 描画モードをセット

                this._base_map_url = BaseMapType.PHOTO; // 現在のベースマップ

                this._time_type = TimeType.DAYTIME; // 現在の時間タイプ

                this._maprayApi = new mapray.cloud.CloudApiV2({
                    tokenType: mapray.cloud.CloudApi.TokenType.API_KEY,
                    token: api_key
                });
                // Imageレイヤ=を追加
                this.addLayer( {
                    type: mapray.Layer.Type.IMAGE,
                    image_provider: new mapray.StandardImageProvider({ url: "https://opentiles.mapray.com/xyz/night-satellite/", min_level: 0, max_level: 8 }),
                    opacity: 1.0,
                    draw_type: mapray.ImageLayer.DrawType.NIGHT,
                } );
            }

            /** @override */
            onUpdateFrame( delta_time ) {
                super.onUpdateFrame( delta_time );
                this.totalTime += delta_time;
                this.elapsedTime += delta_time;
                if ( this.elapsedTime > 3.0 && this.totalTime < 15.0 ) {
                    const pin = new mapray.PinEntity( this.viewer.scene );
                    pin.altitude_mode = mapray.AltitudeMode.CLAMP;
                    pin.addPin( new mapray.GeoPoint( 138.71934, 35.36 + this.latValue, 3780 ), { size: 15 } );
                    pin.setBGColor([1.0, 0.5, 0.0]);
                    this.addEntity( pin );
                    this.elapsedTime = 0;
                    this.latValue += 0.005;
                }

                const viewer = this.viewer;
                if ( viewer.render_mode !== this._render_mode ) {
                    viewer.render_mode = this._render_mode;
                }

                if ( this._time_type === TimeType.NIGHTTIME ) {
                    const sun_xy_degree = -45;
                    const sun_z_degree = 36.0;
                    uiviewer.viewer.sun.setSunDirection( [ Math.cos(Math.PI/180.0 * sun_xy_degree), Math.sin(Math.PI/180.0 * sun_xy_degree), Math.sin(Math.PI/180.0 * sun_z_degree) ] );

                    const moon_xy_degree = 135;
                    const moon_z_degree = 36.0;
                    uiviewer.viewer.moon.setMoonDirection( [ Math.cos(Math.PI/180.0 * moon_xy_degree), Math.sin(Math.PI/180.0 * moon_xy_degree), Math.sin(Math.PI/180.0 * moon_z_degree) ] );
                    uiviewer.viewer.moonVisualizer.setRadius(5);
                } else {
                    const sun_xy_degree = 135
                    const sun_z_degree = 36.0;
                    uiviewer.viewer.sun.setSunDirection( [ Math.cos(Math.PI/180.0 * sun_xy_degree), Math.sin(Math.PI/180.0 * sun_xy_degree), Math.sin(Math.PI/180.0 * sun_z_degree) ] );

                    const moon_xy_degree = -45;
                    const moon_z_degree = 36.0;
                    uiviewer.viewer.moon.setMoonDirection( [ Math.cos(Math.PI/180.0 * moon_xy_degree), Math.sin(Math.PI/180.0 * moon_xy_degree), Math.sin(Math.PI/180.0 * moon_z_degree) ] );
                    uiviewer.viewer.moonVisualizer.setRadius(5);
                }
            }

            /** @override */
            onKeyDown( event ) {
                switch ( event.key ) {
                    case "m": case "M": {
                        this._render_mode = (
                            this._render_mode === mapray.Viewer.RenderMode.SURFACE ?
                            mapray.Viewer.RenderMode.WIREFRAME :
                            mapray.Viewer.RenderMode.SURFACE
                        );
                    } break;
                    case "s": case "S": {
                        this._base_map_url = (
                            this._base_map_url === BaseMapType.PHOTO ?
                            BaseMapType.STANDARD :
                            BaseMapType.PHOTO
                        );

                        let image_provider;
                        if ( this._base_map_url === BaseMapType.PHOTO ) {
                            image_provider = new mapray.StandardImageProvider( {
                                url: "https://cyberjapandata.gsi.go.jp/xyz/seamlessphoto/",
                                format: ".jpg",
                                 min_level: 0,
                                max_level: 18
                            } );
                        } else {
                            image_provider = new mapray.StandardImageProvider( { 
                                url: "https://cyberjapandata.gsi.go.jp/xyz/std/", 
                                format: ".png", 
                                min_level: 2, 
                                max_level: 18 
                            } );
                        }
                        this.viewer.setImageProvider( image_provider, true );
                    } break;
                    case "t": case "T": {
                        this._time_type = (
                            this._time_type === TimeType.DAYTIME ?
                            TimeType.NIGHTTIME :
                            TimeType.DAYTIME
                        );
                    }
                    break;
                    case "d": case "D": {
                        this.get3DDataset();
                    } break;
                    case "p": case "P": {
                        this.getPointCloud();
                    } break;
                    default: {
                        super.onKeyDown( event );
                    }
                }
            }

            async get3DDataset() {
                const datasetId = CloudData.threeD;
                const resource = this._maprayApi.get3DDatasetAsResource( datasetId );
                const loader = new mapray.SceneLoader( this.viewer.scene, resource, {
                    onEntity: ( loader, entity, feature ) => {
                        // Since the resource is a 3D dataset, the entity will be an instance of the ModelEntity class.
                        // When onEntity is specified, you need to manually add the entity.
                        entity.setPosition( new mapray.GeoPoint( 139.7454316, 35.658584, 351 ) );
                        entity.setScale( [ 20, 20, 20 ] );

                        this.addEntity( entity );
                        // Move the camera to the model's location.
                        const bounds = entity.getBounds();
                        this.startFlyCamera({
                            time: 3.0,
                            iscs_end: bounds.getCenter(),
                            end_altitude: 800,
                            end_from_lookat: 351
                        });
                    }
                });
                await loader.load();
            }

            async getPointCloud() {
                const datasetId = CloudData.pointCloud;
                const resource = this._maprayApi.getPointCloudDatasetAsResource( datasetId );
                const provider = new mapray.StandardPointCloudProvider( resource );
                const point_cloud = await this.viewer.point_cloud_collection.add( provider );
                const end_cam_pos = new mapray.GeoPoint( 139.745401, 35.65857, 368 );
                this.startFlyCamera({
                    time: 3.0,
                    iscs_end: end_cam_pos,
                    end_altitude: 800,
                    end_from_lookat: 351
                });
            }
        }

        const uiviewer = new CustomViewer( "mapray-container", apikey, {
            atmosphere: new mapray.Atmosphere(),
            sun_visualizer: new mapray.SunVisualizer( 32 ),
            moon_visualizer: new mapray.MoonVisualizer( 'https://resource.mapray.com/assets/images/moon.jpg' ),
            star_visualizer: new mapray.StarVisualizer( 'https://resource.mapray.com/assets/data/star75.json', 'https://resource.mapray.com/assets/images/starmap_512n2.jpg' ),
        });

        uiviewer.viewer.atmosphere.setRayleigh(0.01);
        uiviewer.viewer.atmosphere.setMie(0.001);

        uiviewer.setCameraPosition({
            longitude: 142.0,
            latitude: 20.0,
            height: 2500000
        });
        uiviewer.setLookAtPosition({
            longitude: 138.729802,
            latitude: 35.363965,
            height: 3000
        });
    </script>
</html>