bool RS_ActionPolylineEquidistant::makeContour() {
if (container==NULL) {
RS_DEBUG->print("RS_ActionPolylineEquidistant::makeContour: no valid container",
RS_Debug::D_WARNING);
return false;
}
RS_Polyline* originalPolyline = (RS_Polyline*)originalEntity;
//create a list of entities to offset without length = 0
QList<RS_Entity*> entities;
for (RS_Entity* en=originalPolyline->firstEntity(); en!=NULL; en=originalPolyline->nextEntity()) {
if (en->getLength() > 1.0e-12)
entities.append(en);
}
if (entities.isEmpty()) {
return false;
}
if (document!=NULL) {
document->startUndoCycle();
}
double neg = 1.0;
if(bRightSide)
neg = -1.0;
// Create new helper entities
RS_Line line1(NULL, RS_LineData(RS_Vector(true), RS_Vector(true)));//current line
RS_Line lineFirst(NULL, RS_LineData(RS_Vector(true), RS_Vector(true)));//previous line
RS_Arc arc1(NULL, RS_ArcData(RS_Vector(true), 0,0,0,false));//current arc
RS_Arc arcFirst(NULL, RS_ArcData(RS_Vector(true), 0,0,0,false));//previous arc
for (int num=1; num<=number || (number==0 && num<=1); num++) {
RS_Polyline* newPolyline = new RS_Polyline(container);
newPolyline->setLayer(((RS_Polyline*)originalEntity)->getLayer());
newPolyline->setPen(((RS_Polyline*)originalEntity)->getPen());
bool first = true;
bool closed = originalPolyline->isClosed();
double bulge = 0.0;
RS_Entity* en;
RS_Entity* prevEntity = entities.last();
RS_Entity* currEntity;
for (int i = 0; i < entities.size(); ++i) {
en = entities.at(i);
RS_Vector v(false);
if (en->rtti()==RS2::EntityArc) {
currEntity = &arc1;
calculateOffset(currEntity, en, dist*num*neg);
bulge = arc1.getBulge();
} else {
currEntity = &line1;
bulge = 0.0;
calculateOffset(currEntity, en, dist*num*neg);
}
if (first) {
if (closed) {
if (prevEntity->rtti()==RS2::EntityArc) {
prevEntity = calculateOffset(&arcFirst, prevEntity, dist*num*neg);
} else {
prevEntity = calculateOffset(&lineFirst, prevEntity, dist*num*neg);
}
v = calculateIntersection(prevEntity, currEntity);
}
if (!v.valid) {
v = currEntity->getStartpoint();
closed = false;
} else if (currEntity->rtti()==RS2::EntityArc) {
//update bulge
arc1.setAngle1(arc1.getCenter().angleTo(v));
arc1.calculateEndpoints();
bulge = arc1.getBulge();
}
first = false;
if (!prevEntity) break; //prevent crash if not exist offset for prevEntity
} else {
v = calculateIntersection(prevEntity, currEntity);
if (!v.valid) {
v= prevEntity->getEndpoint();
double dess = currEntity->getStartpoint().distanceTo(prevEntity->getEndpoint());
if (dess > 1.0e-12) {
newPolyline->addVertex(v, bulge);
prevEntity = NULL;
break;
}
}
double startAngle = prevEntity->getStartpoint().angleTo(prevEntity->getEndpoint());
if (prevEntity->rtti()==RS2::EntityArc) {
arcFirst.setAngle2(arcFirst.getCenter().angleTo(v));
arcFirst.calculateEndpoints();
newPolyline->setNextBulge(arcFirst.getBulge());
}
//check if the entity are reverted
if (abs (prevEntity->getStartpoint().angleTo(prevEntity->getEndpoint())- startAngle) > 0.785) {
prevEntity = newPolyline->lastEntity();
RS_Vector v0 = calculateIntersection(prevEntity, currEntity);
if (prevEntity->rtti()==RS2::EntityArc) {
((RS_Arc*)prevEntity)->setAngle2(arcFirst.getCenter().angleTo(v0));
((RS_Arc*)prevEntity)->calculateEndpoints();
newPolyline->setNextBulge( ((RS_Arc*)prevEntity)->getBulge() );
} else {
((RS_Line*)prevEntity)->setEndpoint(v0);
newPolyline->setNextBulge( 0.0 );
}
newPolyline->setEndpoint(v0);
}
if (currEntity->rtti()==RS2::EntityArc) {
arc1.setAngle1(arc1.getCenter().angleTo(v));
arc1.calculateEndpoints();
bulge = arc1.getBulge();
} else
bulge = 0.0;
}
if (prevEntity) {
newPolyline->addVertex(v, bulge, false);
if (currEntity->rtti()==RS2::EntityArc) {
arcFirst.setData(arc1.getData());
arcFirst.calculateEndpoints();
prevEntity = &arcFirst;
} else {
lineFirst.setStartpoint(line1.getStartpoint());
lineFirst.setEndpoint(line1.getEndpoint());
prevEntity = &lineFirst;
}
}
}
//properly terminated, check closed
if (prevEntity) {
if (closed) {
if (currEntity->rtti()==RS2::EntityArc) {
arc1.setAngle2(arc1.getCenter().angleTo(newPolyline->getStartpoint()));
arc1.calculateEndpoints();
newPolyline->setNextBulge(arc1.getBulge());
bulge = arc1.getBulge();
}
newPolyline->setClosed(true, bulge);
} else {
newPolyline->addVertex(currEntity->getEndpoint(), bulge);
}
}
if (!newPolyline->isEmpty()) {
container->addEntity(newPolyline);
document->addUndoable(newPolyline);
}
}
if (document!=NULL) {
document->endUndoCycle();
}
if (graphicView!=NULL) {
graphicView->redraw();
}
return true;
}
/**
* Implementation of the method used for RS_Export to communicate
* with this filter.
*
* @param file Full path to the LFF file that will be written.
*/
bool RS_FilterLFF::fileExport(RS_Graphic& g, const QString& file, RS2::FormatType /*type*/) {
RS_DEBUG->print("LFF Filter: exporting file '%s'...", file.toLatin1().data());
RS_DEBUG->print("RS_FilterLFF::fileExport: open");
QFile f(file);
QTextStream ts(&f);
ts.setCodec("UTF-8");
if (f.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
RS_DEBUG->print("RS_FilterLFF::fileExport: open: OK");
RS_DEBUG->print("RS_FilterLFF::fileExport: header");
// header:
ts << "# Format: LibreCAD Font 1\n";
ts << QString("# Creator: %1\n").arg(RS_SYSTEM->getAppName());
ts << QString("# Version: %1\n").arg(RS_SYSTEM->getAppVersion());
QString ns = g.getVariableString("Names", "");
if (!ns.isEmpty()) {
QStringList names = ns.split(',');
RS_DEBUG->print("002");
for (int i = 0; i < names.size(); ++i) {
ts << QString("# Name: %1\n").arg(names.at(i));
}
}
QString es = g.getVariableString("Encoding", "");
ts << QString("# Encoding: UTF-8\n");
ts << QString("# LetterSpacing: %1\n").arg(
g.getVariableDouble("LetterSpacing", 3.0));
ts << QString("# WordSpacing: %1\n").arg(
g.getVariableDouble("WordSpacing", 6.75));
ts << QString("# LineSpacingFactor: %1\n").arg(
g.getVariableDouble("LineSpacingFactor", 1.0));
QString dateline = QDate::currentDate().toString ("yyyy-MM-dd");
ts << QString("# Created: %1\n").arg(
g.getVariableString("Created", dateline));
ts << QString("# Last modified: %1\n").arg(dateline);
QString sa = g.getVariableString("Authors", "");
RS_DEBUG->print("authors: %s", sa.toLocal8Bit().data());
if (!sa.isEmpty()) {
QStringList authors = sa.split(',');
RS_DEBUG->print("count: %d", authors.count());
QString a;
for (int i = 0; i < authors.size(); ++i) {
ts << QString("# Author: %1\n").arg(authors.at(i));
}
}
es = g.getVariableString("License", "");
if (!es.isEmpty()) {
ts << QString("# License: %1\n").arg(es);
} else
ts << "# License: unknown\n";
RS_DEBUG->print("RS_FilterLFF::fileExport: header: OK");
// iterate through blocks (=letters of font)
for (uint i=0; i<g.countBlocks(); ++i) {
RS_Block* blk = g.blockAt(i);
RS_DEBUG->print("block: %d", i);
if (blk!=NULL) {
RS_DEBUG->print("002a: %s",
(blk->getName().toLocal8Bit().data()));
ts << QString("\n%1\n").arg(blk->getName());
// iterate through entities of this letter:
for (RS_Entity* e=blk->firstEntity(RS2::ResolveNone);
e!=NULL;
e=blk->nextEntity(RS2::ResolveNone)) {
if (!e->isUndone()) {
// lines:
if (e->rtti()==RS2::EntityLine) {
RS_Line* l = (RS_Line*)e;
ts << clearZeros(l->getStartpoint().x, 5) << ',';
ts << clearZeros(l->getStartpoint().y, 5) << ';';
ts << clearZeros(l->getEndpoint().x, 5) << ',';
ts << clearZeros(l->getEndpoint().y, 5) << '\n';
}
// arcs:
else if (e->rtti()==RS2::EntityArc) {
RS_Arc* a = (RS_Arc*)e;
ts << clearZeros(a->getStartpoint().x, 5) << ',';
ts << clearZeros(a->getStartpoint().y, 5) << ';';
ts << clearZeros(a->getEndpoint().x, 5) << ',';
ts << clearZeros(a->getEndpoint().y, 5) << ",A";
ts << clearZeros(a->getBulge(), 5) << '\n';
}
else if (e->rtti()==RS2::EntityBlock) {
RS_Block* b = (RS_Block*)e;
QString uCode;
uCode.setNum(b->getName().at(0).unicode(), 16);
if (uCode.length()<4) {
uCode = uCode.rightJustified(4, '0');
}
ts << QString("C%1\n").arg(uCode);
}
else if (e->rtti()==RS2::EntityPolyline) {
RS_Polyline* p = (RS_Polyline*)e;
ts << clearZeros(p->getStartpoint().x, 5) << ',';
ts << clearZeros(p->getStartpoint().y, 5);
for (RS_Entity* e2=p->firstEntity(RS2::ResolveNone);
e2!=NULL;
e2=p->nextEntity(RS2::ResolveNone)) {
if (e2->rtti()==RS2::EntityLine){
RS_Line* l = (RS_Line*)e2;
ts << ';' << clearZeros(l->getEndpoint().x, 5) << ',';
ts << clearZeros(l->getEndpoint().y, 5);
} else if (e2->rtti()==RS2::EntityArc){
RS_Arc* a = (RS_Arc*)e2;
ts << ';' << clearZeros(a->getEndpoint().x, 5) << ',';
ts << clearZeros(a->getEndpoint().y, 5) <<",A";
ts << clearZeros(a->getBulge(), 5);
}
}
ts<<'\n';
}
// Ignore entities other than arcs / lines
else {}
}
}
}
}
f.close();
RS_DEBUG->print("LFF Filter: exporting file: OK");
return true;
}
else {
RS_DEBUG->print("LFF Filter: exporting file failed");
}
return false;
}