Added experimental STORMS database support

index.html

@@ -222,6 +222,7 @@ <h3>Stage</h3>
 					<option>ATCF</option>
 					<option>IBTrACS</option>
 					<option>RSMC</option>
+					<option>STORMS</option>
 				</select>
 			</div>
 			<div id="page2-content">
@@ -261,6 +262,7 @@ <h3>Stage</h3>
 	<script src="static/js/rsmc.js"></script>
 	<script src="static/js/hurdat.js"></script>
 	<script src="static/js/ibtracs.js"></script>
+	<script src="static/js/storms.js"></script>
 	<script src="static/js/file_upload.js"></script>
 
 	<script src="static/js/manual_input.js"></script>

static/js/file_upload.js

@@ -9,6 +9,8 @@ function mapFromFile(data, type, accessible) {
 		parsed = parseIbtracs(data);
 	} else if (type === "rsmc") {
 		parsed = parseRsmc(data);
+	} else if (type === "storms") {
+		parsed = parseStorms(data)
 	} else {
 		return;
 	}

static/js/storms.js

@@ -0,0 +1,60 @@
+const WIND_SPEED_THRESHOLDS = {
+    TD: 34,
+    TS: 64,
+    C1: 83,
+    C2: 96,
+    C3: 113,
+    C4: 137
+};
+const MS_TO_KNOTS = 1.943844;
+
+function windSpeedToCategory(speed) {
+    const knots = speed * MS_TO_KNOTS;
+
+    for (const [category, threshold] of Object.entries(WIND_SPEED_THRESHOLDS)) {
+        if (knots < threshold) return category;
+    }
+    return 'C5';
+}
+
+function getStormsShape(category) {
+    if (['TD', 'TS'].includes(category) || category.startsWith('C')) {
+        return 'circle';
+    }
+    console.error("Unknown STORMS category shape: " + category);
+    return 'triangle';
+}
+
+function formatLatitude(lat) {
+    return `${Math.abs(lat).toFixed(1)}${lat < 0 ? 'S' : 'N'}`;
+}
+
+function formatLongitude(lon) {
+    const adjustedLon = lon > 180 ? lon - 360 : lon;
+    return `${Math.abs(adjustedLon).toFixed(1)}${adjustedLon < 0 ? 'W' : 'E'}`;
+}
+
+function parseStorms(data) {
+    const lines = data.trim().split('\n');
+    const parsed = [];
+
+    lines.forEach(line => {
+        const cols = line.trim().split(/[\s,]+/).filter(col => col.length > 0);
+
+        if (cols.length >= 13) {
+            const tcNumber = cols[2].padStart(2, '0');
+            const windSpeedKnots = parseFloat(cols[8]) * MS_TO_KNOTS;
+            const category = windSpeedToCategory(parseFloat(cols[9]));
+
+            parsed.push({
+                name: tcNumber,
+                shape: getStormsShape(category),
+                category: speedToCat(windSpeedKnots),
+                latitude: formatLatitude(parseFloat(cols[5])),
+                longitude: formatLongitude(parseFloat(cols[6])),
+            });
+        }
+    });
+
+    return parsed;
+}