109 lines
4.3 KiB
Java
109 lines
4.3 KiB
Java
/**
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* This software was developed and / or modified by Raytheon Company,
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* pursuant to Contract DG133W-05-CQ-1067 with the US Government.
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*
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* U.S. EXPORT CONTROLLED TECHNICAL DATA
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* This software product contains export-restricted data whose
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* export/transfer/disclosure is restricted by U.S. law. Dissemination
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* to non-U.S. persons whether in the United States or abroad requires
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* an export license or other authorization.
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*
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* Contractor Name: Raytheon Company
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* Contractor Address: 6825 Pine Street, Suite 340
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* Mail Stop B8
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* Omaha, NE 68106
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* 402.291.0100
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*
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* See the AWIPS II Master Rights File ("Master Rights File.pdf") for
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* further licensing information.
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**/
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/**
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*
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*/
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package com.raytheon.viz.gfe.contours;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import com.raytheon.viz.gfe.contours.util.CLine;
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import com.vividsolutions.jts.geom.Coordinate;
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/**
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* @author wdougherty
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*
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*/
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public class ContourTextfileReader {
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public static List<CLine> readCoordinates(String fname) throws IOException {
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// GeometryFactory factory = new GeometryFactory();
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// CoordinateSequenceFactory seqFactory = factory
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// .getCoordinateSequenceFactory();
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// CoordinateSequence cseq = null;
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CLine contour = null;
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List<CLine> contours = new ArrayList<CLine>();
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float contourLevel = Float.NaN;
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// Writing the contours as code didn't work (64k limit), so parse jtext
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// to create the contours
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File file = new File(fname);
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FileInputStream fileInStream = new FileInputStream(file);
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InputStreamReader ireader = new InputStreamReader(fileInStream);
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BufferedReader reader = new BufferedReader(ireader);
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String line;
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Coordinate[] coords = null;
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Pattern coordArrPattern = Pattern
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.compile("\\QCoordinate[] coords\\E\\d+\\Q = new Coordinate[\\E(\\d+)\\];");
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Matcher coordArrMatcher;
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Pattern coordValPattern = Pattern
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.compile("coords\\d+\\[(\\d+)\\Q] = new Coordinate(\\E(-?\\d+\\.\\d+),\\s*(-?\\d+\\.\\d+)\\);");
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Matcher coordValMatcher;
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Pattern contourLevelPattern = Pattern
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.compile("contourLevel = (-?\\d+.\\d+);");
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Matcher contourLevelMatcher;
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try {
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for (line = reader.readLine(); line != null; line = reader
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.readLine()) {
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coordArrMatcher = coordArrPattern.matcher(line);
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coordValMatcher = coordValPattern.matcher(line);
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contourLevelMatcher = contourLevelPattern.matcher(line);
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if (coordArrMatcher.lookingAt()) {
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int size = Integer.parseInt(coordArrMatcher.group(1));
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coords = new Coordinate[size];
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} else if (coordValMatcher.lookingAt()) {
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int idx = Integer.parseInt(coordValMatcher.group(1));
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double x = Double.parseDouble(coordValMatcher.group(2));
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double y = Double.parseDouble(coordValMatcher.group(3));
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coords[idx] = new Coordinate(x, y);
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} else if (line
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.matches("cseq = seqFactory.create\\(coords\\d+\\);\\s*")) {
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// cseq = seqFactory.create(coords);
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} else if (contourLevelMatcher.lookingAt()) {
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contourLevel = Float.parseFloat(contourLevelMatcher
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.group(1));
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} else if ("contour = new CLine(cseq, factory, contourLevel, true);"
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.equals(line)) {
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contour = new CLine(coords, contourLevel, false);
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} else if ("contours.add(contour);".equals(line)) {
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contours.add(contour);
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}
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}
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} catch (Exception e) {
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throw new RuntimeException("Error reading contours", e);
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} finally {
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try {
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reader.close();
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} catch (Exception e) {
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; // ignore
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}
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}
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return contours;
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}
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}
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