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lightbringerlightbringer
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‎Clipper Console/.classpath‎

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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="src" path="src"/>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
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<classpathentry combineaccessrules="false" kind="src" path="/Clipper"/>
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<classpathentry kind="output" path="bin"/>
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</classpath>

‎Clipper Console/.gitignore‎

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/bin/

‎Clipper Console/.project‎

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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>Clipper Console</name>
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<comment></comment>
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<projects>
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</projects>
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<buildSpec>
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<buildCommand>
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<name>org.eclipse.jdt.core.javabuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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</buildSpec>
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<natures>
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<nature>org.eclipse.jdt.core.javanature</nature>
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</natures>
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</projectDescription>

‎Clipper Console/.settings/org.eclipse.jdt.core.prefs‎

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eclipse.preferences.version=1
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org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
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org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
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org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
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org.eclipse.jdt.core.compiler.compliance=1.8
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org.eclipse.jdt.core.compiler.debug.lineNumber=generate
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org.eclipse.jdt.core.compiler.debug.localVariable=generate
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org.eclipse.jdt.core.compiler.debug.sourceFile=generate
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org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
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org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
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org.eclipse.jdt.core.compiler.source=1.8

‎Clipper Console/Test.clip‎

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‎Clipper Console/Test.sub‎

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‎Clipper Console/src/de/lighti/clipper/console/Program.java‎

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package de.lighti.clipper.console;
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import java.awt.Color;
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import java.io.BufferedReader;
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import java.io.BufferedWriter;
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import java.io.File;
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import java.io.FileReader;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.util.Locale;
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import java.util.Random;
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import java.util.StringTokenizer;
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import de.lighti.clipper.Clipper;
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import de.lighti.clipper.Clipper.ClipType;
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import de.lighti.clipper.Clipper.PolyFillType;
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import de.lighti.clipper.Clipper.PolyType;
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import de.lighti.clipper.DefaultClipper;
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import de.lighti.clipper.Path;
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import de.lighti.clipper.Paths;
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import de.lighti.clipper.Point.LongPoint;
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public class Program {
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static Path IntsToPolygon( int[] ints ) {
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final int len1 = ints.length / 2;
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final Path result = new Path( len1 );
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for (int i = 0; i < len1; i++) {
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result.add( new LongPoint( ints[i * 2], ints[i * 2 + 1] ) );
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}
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return result;
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}
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static boolean LoadFromFile( String filename, Paths ppg, int dec_places ) throws IOException {
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return LoadFromFile( filename, ppg, dec_places, 0, 0 );
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}
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static boolean LoadFromFile( String filename, Paths ppg, int dec_places, int xOffset, int yOffset ) throws IOException {
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final double scaling = Math.pow( 10, dec_places );
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ppg.clear();
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if (!new File( filename ).exists()) {
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return false;
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}
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final String delimiters = ", ";
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final BufferedReader sr = new BufferedReader( new FileReader( filename ) );
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try {
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String line;
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if ((line = sr.readLine()) == null) {
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return false;
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}
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final int polyCnt = Integer.parseInt( line );
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if (polyCnt < 0) {
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return false;
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}
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for (int i = 0; i < polyCnt; i++) {
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if ((line = sr.readLine()) == null) {
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return false;
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}
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final int vertCnt = Integer.parseInt( line );
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if (vertCnt < 0) {
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return false;
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}
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final Path pg = new Path( vertCnt );
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ppg.add( pg );
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if (scaling > 0.999 & scaling < 1.001) {
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for (int j = 0; j < vertCnt; j++) {
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int x, y;
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if ((line = sr.readLine()) == null) {
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return false;
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}
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final StringTokenizer tokens = new StringTokenizer( line, delimiters );
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if (tokens.countTokens() < 2) {
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return false;
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}
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x = Integer.parseInt( tokens.nextToken() );
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y = Integer.parseInt( tokens.nextToken() );
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x = x + xOffset;
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y = y + yOffset;
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pg.add( new LongPoint( x, y ) );
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}
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}
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else {
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for (int j = 0; j < vertCnt; j++) {
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double x, y;
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if ((line = sr.readLine()) == null) {
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return false;
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}
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final StringTokenizer tokens = new StringTokenizer( line, delimiters );
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if (tokens.countTokens() < 2) {
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return false;
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}
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x = Double.parseDouble( tokens.nextToken() );
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y = Double.parseDouble( tokens.nextToken() );
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x = x * scaling + xOffset;
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y = y * scaling + yOffset;
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pg.add( new LongPoint( (int) Math.round( x ), (int) Math.round( y ) ) );
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}
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}
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}
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return true;
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}
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finally {
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sr.close();
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}
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}
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public static void main( String[] args ) {
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//Enforce a US locale, or the SVG data will have decimals in form ##,## in countries
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//where ',' is the decimal separator. SVG requires a '.' instead
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Locale.setDefault( Locale.US );
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if (args.length < 5) {
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final String appname = System.getProperty( "sun.java.command" );
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System.out.println( "" );
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System.out.println( "Usage:" );
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System.out.println( String.format( " %1$s CLIPTYPE s_file c_file INPUT_DEC_PLACES SVG_SCALE [S_FILL, C_FILL]", appname ) );
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System.out.println( " where ..." );
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System.out.println( " CLIPTYPE = INTERSECTION|UNION|DIFFERENCE|XOR" );
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System.out.println( " FILLMODE = NONZERO|EVENODD" );
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System.out.println( " INPUT_DEC_PLACES = signific. decimal places for subject & clip coords." );
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System.out.println( " SVG_SCALE = scale of SVG image as power of 10. (Fractions are accepted.)" );
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System.out.println( " both S_FILL and C_FILL are optional. The default is EVENODD." );
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System.out.println( "Example:" );
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System.out.println( " Intersect polygons, rnd to 4 dec places, SVG is 1/100 normal size ..." );
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System.out.println( String.format( " %1$s INTERSECTION subj.txt clip.txt 0 0 NONZERO NONZERO", appname ) );
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return;
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}
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ClipType ct;
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switch (args[0].toUpperCase()) {
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case "INTERSECTION":
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ct = ClipType.INTERSECTION;
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break;
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case "UNION":
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ct = ClipType.UNION;
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break;
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case "DIFFERENCE":
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ct = ClipType.DIFFERENCE;
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break;
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case "XOR":
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ct = ClipType.XOR;
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break;
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default:
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System.out.println( "Error: invalid operation - " + args[0] );
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return;
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}
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final String subjFilename = args[1];
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final String clipFilename = args[2];
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if (!new File( subjFilename ).exists()) {
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System.out.println( "Error: file - " + subjFilename + " - does not exist." );
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return;
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}
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if (!new File( clipFilename ).exists()) {
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System.out.println( "Error: file - " + clipFilename + " - does not exist." );
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return;
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}
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int decimal_places = Integer.parseInt( args[3] );
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if (decimal_places < 0) {
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System.out.println( "Error: invalid number of decimal places - " + args[3] );
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return;
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}
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if (decimal_places > 8) {
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decimal_places = 8;
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}
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else if (decimal_places < 0) {
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decimal_places = 0;
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}
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double svg_scale = Double.parseDouble( args[4] );
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if (svg_scale < 0) {
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System.out.println( "Error: invalid value for SVG_SCALE - " + args[4] );
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return;
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}
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if (svg_scale < -18) {
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svg_scale = -18;
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}
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else if (svg_scale > 18) {
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svg_scale = 18;
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}
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svg_scale = Math.pow( 10, svg_scale - decimal_places );//nb: also compensate for decimal places
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PolyFillType pftSubj = PolyFillType.EVEN_ODD;
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PolyFillType pftClip = PolyFillType.EVEN_ODD;
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if (args.length > 6) {
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switch (args[5].toUpperCase()) {
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case "EVENODD":
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pftSubj = PolyFillType.EVEN_ODD;
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break;
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case "NONZERO":
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pftSubj = PolyFillType.NON_ZERO;
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break;
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default:
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System.out.println( "Error: invalid cliptype - " + args[5] );
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return;
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}
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switch (args[6].toUpperCase()) {
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case "EVENODD":
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pftClip = PolyFillType.EVEN_ODD;
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break;
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case "NONZERO":
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pftClip = PolyFillType.NON_ZERO;
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break;
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default:
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System.out.println( "Error: invalid cliptype - " + args[6] );
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return;
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}
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}
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try {
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final Paths subjs = new Paths();
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final Paths clips = new Paths();
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if (!LoadFromFile( subjFilename, subjs, decimal_places )) {
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System.out.println( "Error processing subject polygons file - " + subjFilename );
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OutputFileFormat();
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return;
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}
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if (!LoadFromFile( clipFilename, clips, decimal_places )) {
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System.out.println( "Error processing clip polygons file - " + clipFilename );
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OutputFileFormat();
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return;
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}
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System.out.println( "wait ..." );
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final DefaultClipper cp = new DefaultClipper( Clipper.STRICTLY_SIMPLE );
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cp.addPaths( subjs, PolyType.SUBJECT, true );
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cp.addPaths( clips, PolyType.CLIP, true );
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final Paths solution = new Paths();
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//Paths solution = new Paths();
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if (cp.execute( ct, solution, pftSubj, pftClip )) {
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saveToFile( "solution.txt", solution, decimal_places );
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//solution = Clipper.OffsetPolygons(solution, -4, JoinType.jtRound);
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final SVGBuilder svg = new SVGBuilder();
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svg.style.showCoords = true;
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svg.style.brushClr = new Color( 0, 0, 0x9c, 0x20 );
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svg.style.penClr = new Color( 0xd3, 0xd3, 0xda );
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svg.addPaths( subjs );
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svg.style.brushClr = new Color( 0x20, 0x9c, 0, 0 );
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svg.style.penClr = new Color( 0xff, 0xa0, 0x7a );
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svg.addPaths( clips );
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svg.style.brushClr = new Color( 0x80, 0xff, 0x9c, 0xAA );
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svg.style.penClr = new Color( 0, 0x33, 0 );
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svg.addPaths( solution );
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svg.saveToFile( "solution.svg", svg_scale );
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System.out.println( "finished!" );
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}
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else {
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System.out.println( "failed!" );
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}
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}
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catch (final IOException e) {
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System.out.println( "An error occured: " + e.getMessage() );
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}
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}
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static Path MakeRandomPolygon( Random r, int maxWidth, int maxHeight, int edgeCount ) {
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return MakeRandomPolygon( r, maxWidth, maxHeight, edgeCount, 1 );
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}
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static Path MakeRandomPolygon( Random r, int maxWidth, int maxHeight, int edgeCount, int scale ) {
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final Path result = new Path( edgeCount );
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for (int i = 0; i < edgeCount; i++) {
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result.add( new LongPoint( r.nextInt( maxWidth ) * scale, r.nextInt( maxHeight ) * scale ) );
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}
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return result;
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}
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static void OutputFileFormat() {
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System.out.println( "The expected (text) file format is ..." );
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System.out.println( "Polygon Count" );
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System.out.println( "First polygon vertex count" );
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System.out.println( "first X, Y coordinate of first polygon" );
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System.out.println( "second X, Y coordinate of first polygon" );
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System.out.println( "etc." );
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System.out.println( "Second polygon vertex count (if there is one)" );
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System.out.println( "first X, Y coordinate of second polygon" );
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System.out.println( "second X, Y coordinate of second polygon" );
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System.out.println( "etc." );
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}
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static void saveToFile( String filename, Paths ppg, int dec_places ) throws IOException {
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final double scaling = Math.pow( 10, dec_places );
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final BufferedWriter writer = new BufferedWriter( new FileWriter( filename ) );
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try {
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writer.write( String.format( "%d%n", ppg.size() ) );
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for (final Path pg : ppg) {
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writer.write( String.format( "%d%n", pg.size() ) );
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for (final LongPoint ip : pg) {
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writer.write( String.format( "%.2f, %.2f%n", ip.getX() / scaling, ip.getY() / scaling ) );
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}
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}
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}
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finally {
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writer.close();
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}
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}
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} //class Program
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