// ---------------//
// isExtensionOf //
// ---------------//
public boolean isExtensionOf(
Stick other, int maxDeltaCoord, int maxDeltaPos, double maxDeltaSlope) {
// Check that a pair of start/stop is compatible
if ((Math.abs(other.getStart() - getStop()) <= maxDeltaCoord)
|| (Math.abs(other.getStop() - getStart()) <= maxDeltaCoord)) {
// Check that a pair of positions is compatible
if ((Math.abs(other.getLine().yAt(other.getStart()) - getLine().yAt(other.getStop()))
<= maxDeltaPos)
|| (Math.abs(other.getLine().yAt(other.getStop()) - getLine().yAt(other.getStart()))
<= maxDeltaPos)) {
// Check that slopes are compatible (a useless test ?)
if (Math.abs(other.getLine().getSlope() - getLine().getSlope()) <= maxDeltaSlope) {
return true;
} else if (logger.isFineEnabled()) {
logger.fine("isExtensionOf: Incompatible slopes");
}
} else if (logger.isFineEnabled()) {
logger.fine("isExtensionOf: Incompatible positions");
}
} else if (logger.isFineEnabled()) {
logger.fine("isExtensionOf: Incompatible coordinates");
}
return false;
}
// -------------//
// computeLine //
// -------------//
public void computeLine() {
line = new BasicLine();
for (GlyphSection section : glyph.getMembers()) {
StickSection ss = (StickSection) section;
line.includeLine(ss.getLine());
}
if (logger.isFineEnabled()) {
logger.fine(
line
+ " pointNb="
+ line.getNumberOfPoints()
+ " meanDistance="
+ (float) line.getMeanDistance());
}
}
// ------------------//
// getAlienPixelsIn //
// ------------------//
public int getAlienPixelsIn(Rectangle area) {
int count = 0;
final int posMin = area.y;
final int posMax = (area.y + area.height) - 1;
final List<GlyphSection> neighbors = glyph.getLag().getSectionsIn(area);
for (GlyphSection section : neighbors) {
// Keep only non-patch sections that are not part of the stick
if (!section.isPatch() && (section.getGlyph() != glyph)) {
int pos = section.getFirstPos() - 1; // Ordinate for horizontal,
// Abscissa for vertical
for (Run run : section.getRuns()) {
pos++;
if (pos > posMax) {
break;
}
if (pos < posMin) {
continue;
}
int coordMin = Math.max(area.x, run.getStart());
int coordMax = Math.min((area.x + area.width) - 1, run.getStop());
if (coordMax >= coordMin) {
count += (coordMax - coordMin + 1);
}
}
}
}
if (logger.isFineEnabled()) {
logger.fine("Stick" + glyph.getId() + " " + area + " getAlienPixelsIn=" + count);
}
return count;
}
/**
* In a specified system, look for all stems that should not be kept, rebuild surrounding glyphs
* and try to recognize them. If this action does not lead to some recognized symbol, then we
* restore the stems.
*
* @return the number of symbols recognized
*/
public int runStemPattern() {
int nb = 0;
// Collect all undue stems
List<Glyph> SuspectedStems = new ArrayList<Glyph>();
for (Glyph glyph : system.getGlyphs()) {
if (glyph.isStem() && glyph.isActive()) {
Set<Glyph> goods = new HashSet<Glyph>();
Set<Glyph> bads = new HashSet<Glyph>();
glyph.getSymbolsBefore(reliableStemSymbols, goods, bads);
glyph.getSymbolsAfter(reliableStemSymbols, goods, bads);
if (goods.isEmpty()) {
if (logger.isFineEnabled()) {
logger.finest("Suspected Stem " + glyph);
}
SuspectedStems.add(glyph);
// Discard "bad" ones
for (Glyph g : bads) {
if (logger.isFineEnabled()) {
logger.finest("Deassigning bad glyph " + g);
}
g.setShape((Shape) null);
}
}
}
}
// Remove these stem glyphs since nearby stems are used for recognition
for (Glyph glyph : SuspectedStems) {
system.removeGlyph(glyph);
}
// Extract brand new glyphs (removeInactiveGlyphs + retrieveGlyphs)
system.extractNewGlyphs();
// Try to recognize each glyph in turn
List<Glyph> symbols = new ArrayList<Glyph>();
final GlyphEvaluator evaluator = GlyphNetwork.getInstance();
final double maxDoubt = GlyphInspector.getPatternsMaxDoubt();
for (Glyph glyph : system.getGlyphs()) {
if (glyph.getShape() == null) {
Evaluation vote = evaluator.vote(glyph, maxDoubt);
if (vote != null) {
glyph.setShape(vote.shape, vote.doubt);
if (glyph.isWellKnown()) {
if (logger.isFineEnabled()) {
logger.finest("New symbol " + glyph);
}
symbols.add(glyph);
nb++;
}
}
}
}
// Keep stems that have not been replaced by symbols, definitively
// remove the others
for (Glyph stem : SuspectedStems) {
// Check if one of its section is now part of a symbol
boolean known = false;
Glyph glyph = null;
for (GlyphSection section : stem.getMembers()) {
glyph = section.getGlyph();
if ((glyph != null) && glyph.isWellKnown()) {
known = true;
break;
}
}
if (!known) {
// Remove the newly created glyph
if (glyph != null) {
system.removeGlyph(glyph);
}
// Restore the stem
system.addGlyph(stem);
}
}
return nb;
}
