Initial commit: v1.0

app.js

@@ -0,0 +1,217 @@
+import * as Cesium from "cesium";
+
+
+Cesium.Ion.defaultAccessToken = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiI3NjcxNWZiYy1mZjFiLTQzNGEtYmEwNy1hMmU0ZDg4NWI2ZGUiLCJpZCI6Mzc3NjU2LCJpYXQiOjE3NjgyMTk2NzJ9.D5DL5zrDi4yK6OPgq-ypC4hM5hfqYKODvppgakc7y3g";
+
+const creditContainer = document.createElement('div');
+creditContainer.style.display = 'none';
+
+const viewer = new Cesium.Viewer("cesiumContainer", {
+    timeline: false,
+    animation: false,
+    sceneModePicker: false,
+    baseLayerPicker: false,
+    geocoder: false,
+    homeButton: false,
+    navigationHelpButton: false,
+    terrainProvider: await Cesium.createWorldTerrainAsync(),
+    creditContainer: creditContainer,
+    contextOptions: {
+        webgl: {
+            preserveDrawingBuffer: true
+        }
+    }
+});
+
+try {
+    const tileset = await Cesium.Cesium3DTileset.fromIonAssetId(2275207);
+    viewer.scene.primitives.add(tileset);
+} catch (error) {
+    console.log(error);
+}
+
+/* 
+=================== Настройка отображения ===================
+*/
+
+const outputWidth = 512;
+const outputHeight = 512;
+
+viewer.scene.canvas.style.width = outputWidth + 'px';
+viewer.scene.canvas.style.height = outputHeight + 'px';
+viewer.container.style.width = outputWidth + 'px';
+viewer.container.style.height = outputHeight + 'px';
+
+viewer.resize(); // важно: обновляет внутренние размеры рендерера
+
+/* 
+=================== Вспомагательные функции ===================
+*/
+
+function dmsToDecimal(dms) {
+    // Пример входа: "48°18'20\"N" или "16°24'41\"E"
+    const regex = /(\d+)°(\d+)'(\d+)"?([NSEW])/i;
+    const match = dms.match(regex);
+    if (!match) {
+        throw new Error("Неверный формат координат: " + dms);
+    }
+
+    const degrees = parseInt(match[1], 10);
+    const minutes = parseInt(match[2], 10);
+    const seconds = parseInt(match[3], 10);
+    const direction = match[4].toUpperCase();
+
+    let decimal = degrees + minutes / 60 + seconds / 3600;
+
+    // Южная и Западная широты — отрицательные
+    if (direction === "S" || direction === "W") {
+        decimal = -decimal;
+    }
+
+    return decimal;
+}
+
+function metersToLat(m) {
+    return m / METERS_PER_DEG_LAT;
+}
+
+function metersToLon(m, latDeg) {
+    return m / (METERS_PER_DEG_LAT * Math.cos(Cesium.Math.toRadians(latDeg)));
+}
+
+function saveImage(filename) {
+    const canvas = viewer.scene.canvas;
+    const image = canvas.toDataURL("image/png");
+
+    const link = document.createElement("a");
+    link.href = image;
+    link.download = filename;
+    document.body.appendChild(link);
+    link.click();
+    document.body.removeChild(link);
+}
+
+function downloadFile(filename, content, mime = "text/plain") {
+    const blob = new Blob([content], { type: mime });
+    const url = URL.createObjectURL(blob);
+
+    const a = document.createElement("a");
+    a.href = url;
+    a.download = filename;
+    document.body.appendChild(a);
+    a.click();
+
+    document.body.removeChild(a);
+    URL.revokeObjectURL(url);
+}
+
+/* 
+=================== Константы и переменные ===================
+*/
+
+const METERS_PER_DEG_LAT = 111_320;
+
+// ---- Параметры сетки ----
+
+const GRID = 2;
+const TILE_M = 50;
+const CAMERA_HEIGHT = 450;
+
+// ---- Координаты ----
+
+const latDMS = "45°25'3\"N";
+const lonDMS = "9°04'15\"E";
+//45°25'35"N 9°04'15"E
+
+const half = (GRID - 1) * TILE_M / 2;
+
+const CENTER_LAT = dmsToDecimal(latDMS);
+const CENTER_LON = dmsToDecimal(lonDMS);
+const startLat = CENTER_LAT + metersToLat(half);
+const startLon = CENTER_LON - metersToLon(half, CENTER_LAT);
+
+
+let row = 0;
+let col = 0;
+let index = 0;
+const offset = 0.0005;
+
+/* 
+=================== Главный цикл сбора ===================
+*/
+
+var flag = false;
+
+function captureNextTile() {
+
+    if (flag == false) {
+        setTimeout(() => {
+            flag = true;
+        }, 5000)
+    }
+
+    const lat = startLat - metersToLat(row * TILE_M);
+    const lon = startLon + metersToLon(col * TILE_M, lat);
+
+    downloadFile(
+        `tile_${index}_sat.json`,
+        JSON.stringify({ lat: lat, lon: lon }, null, 2),
+        "application/json"
+    );
+
+    // ---------- Спутник ----------
+    viewer.camera.setView({
+        destination: Cesium.Cartesian3.fromDegrees(lon, lat, CAMERA_HEIGHT),
+        orientation: {
+            heading: Cesium.Math.toRadians(0),
+            pitch: Cesium.Math.toRadians(-90),
+            roll: 0
+        }
+    });
+
+    viewer.scene.requestRender();
+
+    setTimeout(() => {
+        saveImage(`tile_${index}_sat.png`);
+
+        // ---------- Дрон ----------
+        viewer.camera.setView({
+            destination: Cesium.Cartesian3.fromDegrees(lon, lat - offset, CAMERA_HEIGHT),
+            orientation: {
+                heading: Cesium.Math.toRadians(0),
+                pitch: Cesium.Math.toRadians(-60),
+                roll: 0
+            }
+        });
+
+        viewer.scene.requestRender();
+
+        setTimeout(() => {
+            saveImage(`tile_${index}_drone.png`);
+
+            // ---- След. ячейка ----
+            col++;
+            if (col >= GRID) {
+                col = 0;
+                row++;
+            }
+            index++;
+
+            captureNextTile();
+        }, 2500); // Задержка дрон-рендера
+
+    }, 2500); // Задержка спутник-рендера
+}
+
+/* 
+=================== Запуск ===================
+*/
+
+viewer.scene.postRender.addEventListener(function once() {
+    viewer.scene.postRender.removeEventListener(once);
+
+    setTimeout(() => {
+        captureNextTile();
+    }, 9000);
+});
+