void HPGLEncoder::encode(std::ostream &out, Cut& encodee) {
bool firstOperation = true;
bool writingPolyline = false;
int power_set = encodee.get(CutSettings::CPOWER);
int speed_set = encodee.get(CutSettings::CSPEED);
int freq_set = encodee.get(CutSettings::FREQUENCY);
int beginX = -1, beginY = -1;
int lastX = -1, lastY = -1;
size_t cnt = 0;
for(const SegmentPtr segPtr : segments(encodee)) {
if(cnt % 100 == 0) {
cnt = 0;
if(!firstOperation) {
if (writingPolyline)
out << SEP;
out << HPGL_END;
out << SEP;
}
out << HPGL_START;
out << V_INIT << SEP;
out << format(V_POWER) % power_set << SEP;
out << format(V_SPEED) % speed_set << SEP;
out << format(V_FREQUENCY) % freq_set; // omit separator;
firstOperation = false;
lastX = -1;
lastY = -1;
}
Segment& seg = *segPtr.get();
int startX = seg[0][0];
int startY = seg[0][1];
int endX = seg[1][0];
int endY = seg[1][1];
if (lastX != startX || lastY != startY) {
beginX = startX;
beginY = startY;
out << SEP << HPGL_PEN_UP;
out << format("%d,%d") % startX % startY << SEP;
out << HPGL_PEN_DOWN << format("%d,%d") % endX % endY;
writingPolyline = true;
}
// ..else continue on polyline
else {
out << format(",%d,%d") % endX % endY;
}
lastX = endX;
lastY = endY;
// FIXME: This is a temporary hack to emulate the Epilog Windows driver,
// which appears to repeat the first vertex in a closed polyline twice at the end.
if (beginX == lastX && beginY == lastY)
out << format(",%d,%d") % beginX % beginY;
++cnt;
}
if (writingPolyline) out << SEP;
out << HPGL_END;
}
