From f0d6cefec73492c29d8323e66fb92ee6bbb60cd2 Mon Sep 17 00:00:00 2001
From: 张世豪 <979909237@qq.com>
Date: 星期五, 26 十二月 2025 18:58:23 +0800
Subject: [PATCH] 优化了预览时候视图居中的逻辑

---
 src/gecaoji/Gecaoji.java |   66 ++++++++++++++++++++++++++++++--
 1 files changed, 61 insertions(+), 5 deletions(-)

diff --git a/src/gecaoji/Gecaoji.java b/src/gecaoji/Gecaoji.java
index 2aca713..18493ec 100644
--- a/src/gecaoji/Gecaoji.java
+++ b/src/gecaoji/Gecaoji.java
@@ -49,6 +49,11 @@
     }
 
     public void refreshFromDevice() {
+        // 妫�鏌ユ槸鍚︽鍦ㄥ鑸瑙堟ā寮忥紝濡傛灉鏄垯涓嶆洿鏂颁綅缃�
+        if (isNavigating()) {
+            return;
+        }
+        
         Device device = Device.getGecaoji();
         if (device == null) {
             positionValid = false;
@@ -57,7 +62,7 @@
 
         double x = parseCoordinate(device.getRealtimeX());
         double y = parseCoordinate(device.getRealtimeY());
-        double heading = parseHeading(device.getHeading());
+        double heading = parseHeading(device.getYaw());
         if (Double.isNaN(x) || Double.isNaN(y)) {
             // Keep showing the last known mower position when temporary sensor glitches occur.
             return;
@@ -69,6 +74,22 @@
         positionValid = true;
         headingDegrees = heading;
     }
+    
+    /**
+     * 妫�鏌ユ槸鍚︽鍦ㄥ鑸瑙堟ā寮�
+     * @return 濡傛灉姝ｅ湪瀵艰埅棰勮杩斿洖true锛屽惁鍒欒繑鍥瀎alse
+     */
+    private boolean isNavigating() {
+        try {
+            dikuai.daohangyulan nav = dikuai.daohangyulan.getInstance();
+            if (nav != null) {
+                return nav.isNavigating();
+            }
+        } catch (Exception e) {
+            // 濡傛灉鑾峰彇瀵艰埅瀹炰緥澶辫触锛岃繑鍥瀎alse锛堜笉褰卞搷涓昏鍔熻兘锛�
+        }
+        return false;
+    }
 
     private void ensurePosition() {
         if (position == null) {
@@ -130,7 +151,8 @@
         double iconHeight = icon.getHeight(null);
         double maxSide = Math.max(iconWidth, iconHeight);
         double scaleFactor = worldSize / Math.max(maxSide, MIN_SCALE);
-        double rotationRadians = Math.toRadians(-headingDegrees);
+        // 鍓茶崏鏈哄浘鏍囬粯璁ゆ湞鍗楋紝Yaw=0琛ㄧず姝ｅ寳锛岄渶瑕佹棆杞�180搴�
+        double rotationRadians = Math.toRadians(headingDegrees + 180);
 
         AffineTransform original = g2d.getTransform();
         AffineTransform transformed = new AffineTransform(original);
@@ -155,9 +177,11 @@
         g2d.fill(fallbackShape);
         g2d.setColor(Color.WHITE);
         g2d.draw(fallbackShape);
-    double rotationRadians = Math.toRadians(-headingDegrees);
-    double lineLength = radius;
-    double dx = lineLength * Math.sin(rotationRadians);
+        // Yaw=0琛ㄧず姝ｅ寳(0, -1)锛屼娇鐢╯in/cos璁＄畻鍧愭爣
+        // sin(180)=0, cos(180)=-1 -> 姝ｅ寳
+        double rotationRadians = Math.toRadians(180 - headingDegrees);
+        double lineLength = radius;
+        double dx = lineLength * Math.sin(rotationRadians);
     double dy = lineLength * Math.cos(rotationRadians);
     g2d.drawLine(
         (int) Math.round(position.x),
@@ -179,6 +203,38 @@
         return new Point2D.Double(position.x, position.y);
     }
 
+    /**
+     * 璁剧疆鍓茶崏鏈轰綅缃紙鐢ㄤ簬瀵艰埅棰勮绛夊満鏅級
+     * @param x X鍧愭爣
+     * @param y Y鍧愭爣
+     */
+    public void setPosition(double x, double y) {
+        ensurePosition();
+        position.x = x;
+        position.y = y;
+        positionValid = true;
+    }
+
+    /**
+     * 璁剧疆鍓茶崏鏈烘柟鍚戯紙鐢ㄤ簬瀵艰埅棰勮绛夊満鏅級
+     * @param headingDegrees 鏂瑰悜瑙掑害锛堝害锛�0-360锛�
+     */
+    public void setHeading(double headingDegrees) {
+        double normalized = headingDegrees % 360.0;
+        if (normalized < 0) {
+            normalized += 360.0;
+        }
+        this.headingDegrees = normalized;
+    }
+
+    /**
+     * 鑾峰彇鍓茶崏鏈烘柟鍚�
+     * @return 鏂瑰悜瑙掑害锛堝害锛�0-360锛�
+     */
+    public double getHeading() {
+        return headingDegrees;
+    }
+
     public double getWorldRadius(double scale) {
         if (!positionValid) {
             return Double.NaN;

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