package zhuye;
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import java.awt.*;
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import java.awt.geom.Point2D;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Locale;
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/**
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* 测量模式 - 在地图上点击测量距离
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*/
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public class celiangmoshi {
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private static boolean active = false;
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private static final List<Point2D.Double> measurementPoints = new ArrayList<>();
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private celiangmoshi() {
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}
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/**
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* 启动测量模式
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*/
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public static void start() {
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active = true;
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measurementPoints.clear();
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}
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/**
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* 停止测量模式
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*/
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public static void stop() {
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active = false;
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measurementPoints.clear();
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}
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/**
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* 检查是否处于测量模式
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*/
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public static boolean isActive() {
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return active;
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}
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/**
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* 添加测量点
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*/
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public static void addPoint(Point2D.Double point) {
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if (active && point != null) {
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measurementPoints.add(new Point2D.Double(point.x, point.y));
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}
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}
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/**
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* 获取所有测量点
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*/
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public static List<Point2D.Double> getPoints() {
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return new ArrayList<>(measurementPoints);
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}
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/**
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* 计算两点之间的距离（米）
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*/
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public static double calculateDistance(Point2D.Double p1, Point2D.Double p2) {
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if (p1 == null || p2 == null) {
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return 0.0;
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}
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double dx = p2.x - p1.x;
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double dy = p2.y - p1.y;
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return Math.sqrt(dx * dx + dy * dy);
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}
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/**
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* 格式化距离显示（保留2位小数，单位米）
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*/
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public static String formatDistance(double distance) {
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return String.format(Locale.US, "%.2fm", distance);
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}
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/**
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* 清除所有测量点
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*/
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public static void clear() {
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measurementPoints.clear();
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}
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}
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