get GeneralPath Nearest Line - Java 2D Graphics

Java examples for 2D Graphics:Path

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Description

get GeneralPath Nearest Line

Demo Code


//package com.java2s;
import java.awt.geom.PathIterator;
import java.awt.geom.GeneralPath;
import java.awt.geom.Point2D;
import java.awt.geom.Line2D;

public class Main {
    public static Line2D getNearestLine(Point2D point, GeneralPath path) {
        Line2D currentLine, nearestLine = null;
        double currentDistance, nearestDistance = 100000.0;
        double seg[] = new double[6];
        double x1 = 0, y1 = 0, x2 = 0, y2 = 0;
        int index = 0;

        for (PathIterator i = path.getPathIterator(null); !i.isDone(); i
                .next()) {//from  w w  w . j  a v  a2  s  .co m
            int segType = i.currentSegment(seg);
            if (index == 0) {
                x1 = seg[0];
                y1 = seg[1];
                x2 = seg[0];
                y2 = seg[1];
            } else if (index > 0) {
                x1 = x2;
                y1 = y2;
                x2 = seg[0];
                y2 = seg[1];
                currentLine = new Line2D.Double(x1, y1, x2, y2);
                currentDistance = currentLine.ptSegDist(point);
                if (currentDistance < nearestDistance) {
                    nearestDistance = currentDistance;
                    nearestLine = currentLine;
                }
            }
            index++;
        }
        return nearestLine;
    }
}

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