gov.nasa.worldwind.formats.vpf.GeoSymAttributeConverter Maven / Gradle / Ivy
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/*
* Copyright (C) 2012 United States Government as represented by the Administrator of the
* National Aeronautics and Space Administration.
* All Rights Reserved.
*/
package gov.nasa.worldwind.formats.vpf;
import gov.nasa.worldwind.util.*;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.*;
import java.io.*;
import java.util.ArrayList;
/**
* The GeoSymAttributeConverter application converts GeoSym line attributes, area attributes, and area patterns into a
* form usable by World Wind VPF shapes. Outputs to "gsac-out" a comma-separated-value (CSV) file containing line and
* area attributes for VPF line and area shapes, and PNG images containing area patterns for VPF area shapes.
*
* GeoSymAttributeConverter is used to build the VPF symbol JAR file vpf-symbols.jar. For instructions on
* how to build vpf-symbols.jar, see the file VPF_README.txt, which is distributed in each
* World Wind release.
*
* Usage: java -cp worldwind.jar gov.nasa.worldwind.formats.vpf.GeoSymAttributeConverter [full path to
* "GeoSymEd2Final/GRAPHICS/CTEXT"]
*
* @author dcollins
* @version $Id: GeoSymAttributeConverter.java 1171 2013-02-11 21:45:02Z dcollins $
*/
public class GeoSymAttributeConverter
{
protected static String TYPE_POINT = "Point";
protected static String TYPE_LINE_PLAIN = "LinePlain";
protected static String TYPE_LINE_COMPLEX = "LineComplex";
protected static String TYPE_AREA_PLAIN = "AreaPlain";
protected static String TYPE_AREA_PATTERN = "AreaPattern";
protected static class CGMFile
{
protected File file;
protected String content;
protected String type;
protected int[] colorTable;
protected int[] patternTable;
protected int lineCount = 0;
protected int polylineCount = 0;
protected int shapeCount = 0;
protected int polygonCount = 0;
protected int patternCount = 0;
protected int pentagonCount = 0;
protected int lineElementCount = 0;
protected int lineColorIndex = -1;
protected int fillColorIndex = -1;
protected int lineWidth = -1;
protected double scale = 1;
protected short stipplePattern;
protected int stippleFactor = 0;
protected String edgeVis = "";
public CGMFile(File file)
{
this.file = file;
processCGMFile(file);
// TODO: process line stipple pattern
if (this.type.equals(TYPE_LINE_COMPLEX))
this.processStipplePattern();
}
protected void processCGMFile(File file)
{
this.content = readTextFile(file).replaceAll("\r", "");
String[] lines = this.content.split("\n");
String CGMLine = "";
for (String line : lines)
{
if (!line.endsWith(";"))
line = line.trim() + " ";
CGMLine += line;
if (CGMLine.endsWith(";"))
{
this.processCGMLine(CGMLine);
CGMLine = "";
}
}
this.type = getType();
}
protected void processCGMLine(String line)
{
if (line.startsWith("LINE "))
{
if (getNumValues(line) == 4)
this.lineCount++;
else
this.polylineCount++;
}
else if (line.startsWith("CIRCLE "))
this.shapeCount++;
else if (line.startsWith("ELLIPARC "))
this.shapeCount++;
else if (line.startsWith("POLYGONSET "))
this.shapeCount++;
else if (line.startsWith("POLYGON "))
{
this.polygonCount++;
if (getNumValues(line) == 12)
this.pentagonCount++;
}
else if (line.startsWith("PATTABLE "))
{
this.patternCount++;
this.patternTable = getIntegerValues(line);
}
else if (line.startsWith("LINECOLR "))
this.lineColorIndex = getIntegerValue(line);
else if (line.startsWith("FILLCOLR "))
this.fillColorIndex = getIntegerValue(line);
else if (line.startsWith("LINEWIDTH "))
this.lineWidth = getIntegerValue(line);
else if (line.contains("LineComponentElement"))
this.lineElementCount++;
else if (line.startsWith("EDGEVIS "))
this.edgeVis = getStringValue(line);
else if (line.startsWith("COLRTABLE "))
this.colorTable = getIntegerValues(line);
else if (line.startsWith("COLRTABLE "))
this.colorTable = getIntegerValues(line);
else if (line.startsWith("SCALEMODE "))
this.scale = getScaleValue(line);
}
protected int getIntegerValue(String line)
{
return Integer.parseInt(getStringValue(line));
}
protected int[] getIntegerValues(String line)
{
line = line.substring(0, line.length() - 1); // remove end line ";"
String[] values = line.split(" ");
int[] ints = new int[values.length - 1];
int idx = 0;
for (int i = 1; i < values.length; i++)
{
if (values[i].length() > 0)
ints[idx++] = Integer.parseInt(values[i]);
}
return ints;
}
protected String getStringValue(String line)
{
line = line.substring(0, line.length() - 1); // remove end line ";"
return line.split(" ")[1];
}
protected double getScaleValue(String line)
{
line = line.substring(0, line.length() - 1); // remove end line ";"
String[] values = line.split(" ");
return Double.parseDouble(values[2]);
}
protected int getNumValues(String line)
{
return line.split(" ").length - 1;
}
protected String getColor(int idx)
{
if (idx < 0 || idx * 3 + 3 > this.colorTable.length - 1)
return "#FFFFFF";
String color = String.format("#%02x%02x%02x", this.colorTable[idx * 3 + 1], this.colorTable[idx * 3 + 2],
this.colorTable[idx * 3 + 3]);
if (color.length() > 7)
System.out.println(
"Color error: idx: " + idx + ", color: " + color + ", components: " + String.format("%d %d %d",
this.colorTable[idx * 3 + 1], this.colorTable[idx * 3 + 2], this.colorTable[idx * 3 + 3]));
return color;
}
protected String getType()
{
if (this.patternCount > 0)
return TYPE_AREA_PATTERN;
else if (this.polygonCount == 1 && this.pentagonCount == 1 && this.edgeVis.equals("OFF")
&& this.lineCount == 0 && this.polylineCount == 0 && this.shapeCount == 0)
return TYPE_AREA_PLAIN;
else if (this.lineElementCount > 0)
return TYPE_LINE_COMPLEX;
else if (this.lineCount == 1 && this.polylineCount == 0 && this.shapeCount == 0 && this.polygonCount == 0)
return TYPE_LINE_PLAIN;
else
return TYPE_POINT;
}
protected void processStipplePattern()
{
//String elementType = "";
double elementLength = 0;
double totalLength = 0;
ArrayList lengths = new ArrayList();
String[] lines = this.content.split("\n");
// Gather pattern segments
for (String line : lines)
{
if (line.contains("Component.1.Element"))
{
if (elementLength > 0)
{
lengths.add(elementLength);
totalLength += elementLength;
elementLength = 0;
}
}
else if (line.startsWith("APSATTR \"ElementType\""))
{
//elementType = getLastValue(line);
}
else if (line.startsWith("APSATTR \"ElementLength\""))
{
elementLength = Double.parseDouble(getLastValue(line));
}
else if (line.contains("Component.2") || line.startsWith("BEGAPS \"IC_ViewportTable\""))
{
break;
}
}
// Gather last pattern portion if any
if (elementLength > 0)
{
lengths.add(elementLength);
totalLength += elementLength;
}
// Determine the stipple 16 bit pattern out of the length sequence
// This assumes the sequence starts with a dash and follows with gaps/dashes
double bitLength = totalLength / 16;
String bitMask = "";
char bit = '1';
for (Double d : lengths)
{
int bits = (int) Math.round(d / bitLength);
for (int i = 0; i < bits; i++)
{
bitMask += bit;
}
bit = bit == '1' ? '0' : '1';
}
// Padd or trim the bit mask to 16 bits
if (bitMask.length() == 0 || !bitMask.contains("0") || !bitMask.contains("1"))
bitMask = "1111110001111000"; // default mask
while (bitMask.length() < 16)
{
bitMask += bitMask.substring(bitMask.length() - 1);
}
bitMask = bitMask.substring(0, 16);
// Set stipple pattern and factor
this.stipplePattern = (short) Integer.parseInt(bitMask, 2);
this.stippleFactor = (int) Math.max(1, Math.min(3, Math.ceil(totalLength / 6)));
// Trace
//System.out.print(this.file.getName() + ", bitmask: " + bitMask + " (" + bitMask.length() + ")" + ", pattern length: " + totalLength + ", num segements: " + lengths.size() + " - ");
//for (Double d : lengths)
// System.out.print(d + ", ");
//System.out.println("");
}
protected String getLastValue(String line)
{
String[] tokens = line.replaceAll("\"", "").replaceAll(";", "").split("\\s");
return tokens[tokens.length - 1];
}
protected BufferedImage getPattern()
{
if (this.patternTable == null)
return null;
Color color = Color.decode(getColor(this.fillColorIndex));
int width = this.patternTable[1];
int height = this.patternTable[2];
int idx = 4; // bit data start
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_4BYTE_ABGR);
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
if (this.patternTable[idx++] > 0)
image.setRGB(x, y, color.getRGB());
}
}
return image;
}
public String toRecordString()
{
String code = this.file.getName().split("\\.")[0];
String type = this.type;
String lineWidth = "";
String lineColor = "";
String stipplePattern = "";
String stippleFactor = "";
String fillColor = "";
if (this.type.equals(TYPE_AREA_PATTERN) || this.type.equals(TYPE_AREA_PLAIN))
{
// Set fill color for patterns too as a backup
fillColor = getColor(this.fillColorIndex);
}
else if (this.type.equals(TYPE_LINE_PLAIN) || this.type.equals(TYPE_LINE_COMPLEX))
{
// Use .5 if no line width found
lineWidth = this.lineWidth > 0 ? String.format("%.1f", this.lineWidth * this.scale).replace(',', '.')
: ".5";
// Use fill color if no line color found
lineColor = this.lineColorIndex >= 0 ? getColor(this.lineColorIndex) : getColor(this.fillColorIndex);
if (this.type.equals(TYPE_LINE_COMPLEX))
{
stipplePattern = String.format("#%04x", this.stipplePattern);
stippleFactor = "" + this.stippleFactor;
}
}
return String.format("%s,%s,%s,%s,%s,%s,%s", code, type, lineWidth, lineColor, stipplePattern,
stippleFactor, fillColor);
}
public String readTextFile(File file)
{
if (file == null)
{
String msg = Logging.getMessage("nullValue.FileIsNull");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
StringBuilder sb = new StringBuilder();
BufferedReader reader = null;
try
{
reader = new BufferedReader(new FileReader(file));
String line;
while ((line = reader.readLine()) != null)
{
sb.append(line);
sb.append(System.getProperty("line.separator")); // add back line separator
}
}
catch (IOException e)
{
String msg = Logging.getMessage("generic.ExceptionAttemptingToReadFile", file.getPath());
Logging.logger().log(java.util.logging.Level.SEVERE, msg);
return null;
}
finally
{
WWIO.closeStream(reader, file.getPath());
}
return sb.toString();
}
}
public static void main(String[] args)
{
if (args == null || args.length == 0)
{
printUsage();
return;
}
File[] cgmFiles = new File(args[0]).listFiles();
PrintStream outAttrs = null;
try
{
File outFile = new File(OUT_ATTRS_PATH);
//noinspection ResultOfMethodCallIgnored
outFile.getParentFile().mkdirs();
outAttrs = new PrintStream(new FileOutputStream(outFile)); // CSV Output
outAttrs.println("# GeoSym line and area attributes");
outAttrs.println(
"# GeoSym code, Feature type, Line width, Line color, Stipple pattern, Stipple factor, Fill color");
outAttrs.println("#");
for (File file : cgmFiles)
{
if (file.getName().toUpperCase().endsWith(".CGM"))
{
CGMFile cgmf = new CGMFile(file);
if (!cgmf.type.equals(TYPE_POINT))
outAttrs.println(cgmf.toRecordString());
if (cgmf.type.equals(TYPE_AREA_PATTERN))
writeAreaPattern(cgmf);
}
}
System.out.println("Done.");
}
catch (IOException e)
{
e.printStackTrace();
}
finally
{
WWIO.closeStream(outAttrs, OUT_ATTRS_PATH);
}
}
protected static final String OUT_DIR = "gsac-out";
protected static final String OUT_ATTRS_PATH = OUT_DIR + "/geosym/symasgn/ascii/geosym-line-area-attr.csv";
protected static final String OUT_PATTERNS_PATH = OUT_DIR + "/geosym/graphics/bin";
protected static void printUsage()
{
System.out.println("GeoSymAttributeConverter");
System.out.println();
System.out.println("Converts GeoSym line attributes, area attributes, and area patterns into a form usable by");
System.out.println("World Wind VPF shapes. Outputs to \"" + OUT_DIR + "\" a comma-separated-value file");
System.out.println("containing line and area attributes for VPF line and area shapes, and PNG files");
System.out.println("containing area patterns for VPF area shapes.");
System.out.println();
System.out.println(
"Usage: java -cp worldwind.jar gov.nasa.worldwind.formats.vpf.GeoSymAttributeConverter [full path to \"GeoSymEd2Final/GRAPHICS/CTEXT\"]");
System.out.println();
}
protected static void writeAreaPattern(CGMFile cgmf)
{
String fileName = cgmf.file.getName().toUpperCase().replace(".CGM", ".png");
File outFile = new File(OUT_PATTERNS_PATH, fileName);
try
{
//noinspection ResultOfMethodCallIgnored
outFile.getParentFile().mkdirs();
ImageIO.write(cgmf.getPattern(), "png", outFile);
}
catch (Exception e)
{
System.out.println("Could not save pattern " + fileName);
}
}
}
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