From f1d44e7dbe32b87b95d491c85d57911069eb31a1 Mon Sep 17 00:00:00 2001
From: sansenhoshi <sansenhoshi@outlook.com>
Date: Wed, 1 Jul 2026 11:50:53 +0800
Subject: [PATCH] =?UTF-8?q?=E9=A3=8E=E5=90=91=E8=AE=A1=E7=AE=97=E6=96=B9?=
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---
 weather-data-ui/src/utils/windDirection.ts | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 weather-data-ui/src/utils/windDirection.ts

diff --git a/weather-data-ui/src/utils/windDirection.ts b/weather-data-ui/src/utils/windDirection.ts
new file mode 100644
index 0000000..3c7315d
--- /dev/null
+++ b/weather-data-ui/src/utils/windDirection.ts
@@ -0,0 +1,22 @@
+/**
+ * 风向角度 -> 风向代码（N/NE/E/SE/S/SW/W/NW）
+ */
+export function windDirectionCode(deg: number | null | string): string | null {
+  if (deg == null || deg === "" || isNaN(Number(deg))) return null;
+  const d = Number(deg);
+  if (d < 0 || d > 360) return null;
+  return ["N", "NE", "E", "SE", "S", "SW", "W", "NW"][Math.floor((d + 22.5) / 45) % 8];
+}
+
+/**
+ * 风向角度 -> 风向中文标签（通过字典 wind_direction_type 映射）
+ * @param deg 风向角度
+ * @param dicts 字典列表
+ */
+export function windDirectionLabel(deg: number | null | string, dicts: any[]): string {
+  const code = windDirectionCode(deg);
+  if (!code) return "—"; // em dash
+  const type = dicts.find((d: any) => d.dictType === "wind_direction_type");
+  const entry = type?.dataList?.find((e: any) => e.dictValue === code);
+  return entry?.dictLabel || code;
+}