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| | | /** // 文档注释开始 |
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| | | * Draw the planned mowing path. // 绘制路径 |
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| | | */ // 文档注释结束 |
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| | | public static void drawPlannedPath(Graphics2D g2d, List<Point2D.Double> path, double scale) { // 绘制主方法 |
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| | | public static void drawPlannedPath(Graphics2D g2d, List<Point2D.Double> path, double scale, double arrowScale) { // 绘制主方法 |
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| | | if (path == null || path.size() < 2) { // 判定点数 |
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| | | return; // 数据不足直接返回 |
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| | | } // if结束 |
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| | | Point2D.Double end = path.get(path.size() - 1); // 终点 |
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| | | Point2D.Double prev = path.get(path.size() - 2); // 倒数第二个点 |
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| | | drawArrowMarker(g2d, start, second, START_POINT_COLOR, scale); // 绘制起点箭头 |
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| | | drawArrowMarker(g2d, prev, end, END_POINT_COLOR, scale); // 绘制终点箭头 |
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| | | drawArrowMarker(g2d, start, second, START_POINT_COLOR, scale, arrowScale); // 绘制起点箭头 |
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| | | drawArrowMarker(g2d, prev, end, END_POINT_COLOR, scale, arrowScale); // 绘制终点箭头 |
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| | | |
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| | | g2d.setStroke(previous); // 恢复原描边 |
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| | | } // 方法结束 |
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| | | |
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| | | private static void drawArrowMarker(Graphics2D g2d, Point2D.Double from, Point2D.Double to, Color color, double scale) { // 绘制箭头辅助 |
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| | | private static void drawArrowMarker(Graphics2D g2d, Point2D.Double from, Point2D.Double to, Color color, double scale, double sizeScale) { // 绘制箭头辅助 |
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| | | if (from == null || to == null) { // 判空 |
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| | | return; // 数据不足返回 |
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| | | } // if结束 |
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| | |
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| | | } // if结束 |
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| | | |
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| | | double arrowLength = Math.max(2.5, 5.5 / Math.max(0.5, scale)); // 计算箭头长度 |
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| | | arrowLength *= 0.5; // 缩小箭头尺寸为原来的一半 |
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| | | double clampedScale = sizeScale > 0 ? sizeScale : 1.0; // 防止非法缩放 |
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| | | arrowLength *= 0.25 * clampedScale; // 缩小箭头至原来的一半 |
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| | | double arrowWidth = arrowLength * 0.45; // 计算箭头宽度 |
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| | | |
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| | | double ux = dx / length; // 单位向量X |
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