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InkMLParser.java
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InkMLParser.java
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import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.io.File;
import java.nio.file.Files;
import java.nio.file.LinkOption;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
//import org.junit.Assert;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
public class InkMLParser {
File inkFile;
static int savedCounter = 0;
static int WIDTH = 100;
static int HEIGHT = 100;
int IMAGESIZE = 28;
static int MODE=1;
final static int MODE_BUILD_TRAIN = 1;
final static int MODE_BUILD_TEST = 2;
static List<InkMLSymbol> tempSymbols;
static List<InkMLSymbol> symbols;
static String outpath="";
public InkMLParser() {
}
public static boolean init() throws Exception{
int symbolCounter=0;
String dataPath = "C:\\mldata\\CROHME2019\\subTask_structure\\Train\\Train\\INKMLs\\Train_2014";
String dbPath = dataPath;
String oupath = "c:\\mldata\\MathIMG\\ConvertedINK";
if (MODE== MODE_BUILD_TRAIN) {
outpath = oupath;
}else if(MODE==MODE_BUILD_TEST){
//outpath =dataOutput;
//oupath = testDataOutput;
//dbPath = testDataPath;
}
ArrayList<String> dataBaseFilePaths = Tools.buildDataBaseFilePaths(dbPath);
for(String dbfs: dataBaseFilePaths) {
ArrayList<String> aFilePaths = Tools.buildFileList(dbfs,".inkml");
System.out.println("Initializing");
for(String path: aFilePaths) {
System.out.println("Current path:"+path);
File inkfile = new File(path);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(inkfile);
List<InkMLSymbol> links = new ArrayList<InkMLSymbol>();
Node nod = doc.getFirstChild();
NodeList nodes = nod.getChildNodes();
StrokeFactory sf = new StrokeFactory();
tempSymbols = new ArrayList<InkMLSymbol>();
symbols = new ArrayList<InkMLSymbol>();
for(int i =0; i<nodes.getLength();i++) {
Node n = nodes.item(i);
if(n.getNodeType() == Node.ELEMENT_NODE) {
Element el = (Element)n;
//String id = n.getAttributes().getNamedItem("id").getNodeValue();
//System.out.print("element:"+el);
switch(n.getNodeName()) {
case "trace" :{
InkMLSymbol ims = new InkMLSymbol();
NamedNodeMap nmm = n.getAttributes();
Node sid = nmm.getNamedItem("id");
ims.setXmlID(sid.getNodeValue());
// System.out.println("trace: extract pairs "+ sid);
String pairs = n.getTextContent();
Stroke s = sf.generate(pairs);
ims.addStroke(s);
tempSymbols.add(ims);
break;
}
case "annotation" :{
// System.out.println("annotation:...");
// System.out.println(n.getTextContent()+"..."+ n.getNodeValue());
break;
}
case "traceFormat" :{
break;}
case "annotationXML" :{
// System.out.println("AnnotationXML: break");
break;}
case "traceGroup" : {
//er vi kommet hit så bør id allered eksistere i symboler
// System.out.println("TraceGroup: investigating");
String cont = n.getTextContent();
//System.out.println(cont);
NodeList trg = n.getChildNodes();
for(int a=0;a<trg.getLength();a++) {
Node ne = trg.item(a);
// System.out.println("traceGroup: "+ne.getNodeName()+"..."+ne.getNodeValue());
switch(ne.getNodeName()) {
//Secondlayer of tracegroup. The outher describes the expression, the inner
//describes the symbols of the expression
case "traceGroup":{
InkMLSymbol ims = new InkMLSymbol();
NamedNodeMap nmm = ne.getAttributes();
Node sid = nmm.getNamedItem("xml:id");
ims.setXmlID(sid.getNodeValue());
NodeList subnodes = ne.getChildNodes();
for(int ab = 0; ab < subnodes.getLength();ab++) {
Node aNode = subnodes.item(ab);
// System.out.println(ab+" av "+subnodes.getLength()+":"+aNode.getNodeName()+":" +aNode.getTextContent());
switch(aNode.getNodeName()) {
case ("annotation"): {
String Label=null;
NamedNodeMap nnm = aNode.getAttributes();
Node type = nnm.getNamedItem("type");
//String sType = aNode.getTextContent();
String sclean = Tools.CleanString(aNode.getTextContent());
//System.out.println("stype:"+sclean+" "+type+ " "+type.getNodeValue());
ims.setLabel(sclean);
symbolCounter++;
symbols.add(ims);
break;}//Truth value of this symbol
case ("annotationXML"):{
NamedNodeMap nnm = aNode.getAttributes();
Node axml = nnm.getNamedItem("href");
String cleaned = Tools.CleanString(axml.getNodeValue());
// System.out.println("annotationXML ref:"+cleaned);
break;}//describes how this trace fits in the expression?
case ("traceView"):{
NamedNodeMap nnm = aNode.getAttributes();
Node tDRF = nnm.getNamedItem("traceDataRef");
ims.addReferenceXMLID(tDRF.getNodeValue());
break;}//reference to which trace it belongs. Please NOTICE!: a symbol could
//consist of multiple traces!! so there could be more then one!
}
}
break;
}
case "annotation":{
// System.out.println("traceGroup:annotation"+ne.getNodeValue());
break;
}
}
}
}
default :{
// System.out.println("end-");
break;
}
}
}
else {
// System.out.println("? not shure what this is ? "+n.getNodeName()+ n.getNodeValue()+ n.getNodeType());
}
}
System.out.println("symbols:"+symbols.size());
System.out.println("temporary symbols:"+tempSymbols.size());
//This asumes that a symbols should be drawn from 0,0 in a cartesian coordinated system
//Maybe we should concider to move the symbol so it is centered
mergeTraces();
for(InkMLSymbol ims: symbols)
{
Point max = ims.Max();
Point min = ims.Min();
Point p = Tools.buildScalingFactors(max,min,28,28);
Point tf = Tools.buildMoveToZeroFactors(max,min);
Point mc = Tools.buildMoveToCenterFactor(max,min,WIDTH,HEIGHT);
ims.translate(tf);
ims.translate(mc);
max = ims.Max();
min = ims.Min();
ims.Scale(100,0,Tools.Max(max.x,max.y),Tools.Min(min.x,min.y));
}
drawSymbols();
listSymbols();
}
System.out.println("Num items in symbols:"+symbols.size());
System.out.println("Files:"+aFilePaths.size());
System.out.println("Symbols:"+symbolCounter);
System.out.println("Sent to save:"+savedCounter);
int[] ff = Tools.numFilesAndFolders(oupath);
//Tools.buildFileList(test, ".inkml");
System.out.println(outpath+" :Files:"+ff[0]);
System.out.println(outpath+" :Folders:"+ff[1]);
System.out.println("input: "+dbPath);
System.out.println("Initialized");
}
return true;
}
public static void main(String[] args) {
try {
if(symbols==null) {
symbols = new ArrayList<InkMLSymbol>();
}
init();
//mergeTraces();
//drawSymbols();
//listSymbols();
//cleanUpCoordinates();
}catch(Exception e) {
e.printStackTrace();
}
}
private static void listSymbols() {
for(InkMLSymbol im: symbols) {
String addit = "";
for(String ia: im.refXmlId) {
addit += ia+", ";
}
System.out.println("Symbol: id"+im.getXmlId()+" Label:"+im.getLabel()+". refered: "+addit);
}
}
//Draws InkML symbols to jpg files,
//TODO:Need a mechanism in import to get the ground-truth of the object
public static void drawSymbols() {
String filename="impInk";
//String path = System.getProperty("user.dir")+"/ConvertedINK";
int a=0;
System.out.println("Painting all symbols of exp:");
for(InkMLSymbol iml: symbols) {
//System.out.println(a);
Path pa = Paths.get(outpath+"/"+iml.getLabel()+"/");
if(Files.isDirectory(pa)) {
//Folder exist, do nothing
//System.out.println("Exist: "+path+"..."+iml.getLabel());
}else {
File f = new File(outpath+"/"+iml.getLabel());
f.mkdir();
}
a++;
BufferedImage bim = new BufferedImage(100,100,BufferedImage.TYPE_BYTE_BINARY);
Graphics2D g = bim.createGraphics();
ArrayList<Stroke> als = (ArrayList<Stroke>) iml.getStrokes();
for(Stroke s: als) {
ArrayList<Point> poi = (ArrayList<Point>) s.getPoints();
for(int i=0; i<poi.size()-1;i++) {
Point p1 = poi.get(i);
Point p2 = poi.get(i+1);
java.awt.Stroke str = new java.awt.BasicStroke(3);
g.setStroke(str);
g.drawLine((int)p1.x, (int)p1.y, (int)p2.x, (int)p2.y);
}
}
//BufferedImage scaled = Tools.ScaleImage(bim,56,56);
BufferedImage bscaled = ImageTools.ImageScale(bim);
Tools.saveImage(bscaled,outpath+"/"+iml.getLabel()+"/"+a+savedCounter,"jpg");
savedCounter++;
}
System.out.println("finished: "+symbols.size());
}
public List<InkMLSymbol> getSymbols() {
System.out.println("return inkmlSymbol: "+symbols.size()+" items");
return this.symbols;
}
//
public static void cleanUpCoordinates() {
//After scaling there exist some ambigious lines
//So let's convert coordinates to int and remove lines that is
//close to each other
for(InkMLSymbol im: symbols) {
for(Stroke s: im.strokes) {
for(Point p: s.points) {
p.convertCoordToIntValue();
}
}
}
}
// Draw the strokes of a symbol
public static void drawSymbol(InkMLSymbol ims, Graphics2D g) {
for(Stroke s: ims.strokes) {
ArrayList<Point> pos = (ArrayList<Point>) s.getPoints();
for(int i=0; i<pos.size()-1;i++) {
Point p = pos.get(i);
Point o2 = pos.get(i+1);
g.drawLine((int)p.x,(int)p.y,(int)o2.x,(int)o2.y);
}
}
}
//merge traces into one symbol
public static void mergeTraces() {
//for hvert symbol i symbol - hent traces fra tempSymbols hvor
//symbol refxmlid = tempSymbol id
for(InkMLSymbol ims: symbols) {
ArrayList<String> symRefs = (ArrayList<String>) ims.getRefXMLID();
for(String sid: symRefs) {
for(InkMLSymbol tim: tempSymbols) {
String tid = tim.getXmlId();
if(sid.equals(tid)) {
for(Stroke s: tim.getStrokes()) {
ims.addStroke(s);
}
}
}
}
}
}
}