/**
* Plot a polygon
*
* @throws IOException
* @throws ReprapException
* @return
*/
private void plot(RrPolygon p, boolean firstOneInLayer) throws ReprapException, IOException {
Attributes att = p.getAttributes();
Printer printer = layerConditions.getPrinter();
double outlineFeedrate = att.getExtruder().getOutlineFeedrate();
double infillFeedrate = att.getExtruder().getInfillFeedrate();
boolean acc =
att.getExtruder().getMaxAcceleration() > 0; // Preferences.loadGlobalBool("Accelerating");
// int leng = p.size();
if (p.size() <= 1) {
startNearHere = null;
return;
}
// If the length of the plot is <0.05mm, don't bother with it.
// This will not spot an attempt to plot 10,000 points in 1mm.
double plotDist = 0;
Rr2Point lastPoint = p.point(0);
for (int i = 1; i < p.size(); i++) {
Rr2Point n = p.point(i);
plotDist += Rr2Point.d(lastPoint, n);
lastPoint = n;
}
if (plotDist < Preferences.machineResolution() * 0.5) {
Debug.d("Rejected line with " + p.size() + " points, length: " + plotDist);
startNearHere = null;
return;
}
printer.selectExtruder(att);
// Don't do these with mid-point starting
// if(p.isClosed() && att.getExtruder().incrementedStart())
// p = p.incrementedStart(layerConditions);
// else if(p.isClosed() && att.getExtruder().randomStart())
// p = p.randomStart();
int stopExtruding = p.size() + 10;
int stopValve = stopExtruding;
double extrudeBackLength = att.getExtruder().getExtrusionOverRun();
double valveBackLength = att.getExtruder().getValveOverRun();
if (extrudeBackLength >= valveBackLength) {
if (extrudeBackLength > 0) stopExtruding = p.backStep(extrudeBackLength);
if (valveBackLength > 0) stopValve = p.backStep(valveBackLength);
} else {
if (valveBackLength > 0) stopValve = p.backStep(valveBackLength);
if (extrudeBackLength > 0) stopExtruding = p.backStep(extrudeBackLength);
}
if (printer.isCancelled()) return;
// If getMinLiftedZ() is negative, never lift the head
Boolean lift = att.getExtruder().getMinLiftedZ() >= 0;
if (acc)
p.setSpeeds(
att.getExtruder().getSlowXYFeedrate(),
p.isClosed() ? outlineFeedrate : infillFeedrate,
att.getExtruder().getMaxAcceleration());
if (extrudeBackLength <= 0) stopExtruding = Integer.MAX_VALUE;
else if (acc) stopExtruding = p.findBackPoint(extrudeBackLength);
if (valveBackLength <= 0) stopValve = Integer.MAX_VALUE;
else if (acc) stopValve = p.findBackPoint(valveBackLength);
currentFeedrate = att.getExtruder().getFastXYFeedrate();
singleMove(p.point(0));
if (acc) currentFeedrate = p.speed(0);
else {
if (p.isClosed()) {
currentFeedrate = outlineFeedrate;
} else {
currentFeedrate = infillFeedrate;
}
}
plot(p.point(0), p.point(1), false, false);
// Print any lead-in.
printer.printStartDelay(firstOneInLayer);
boolean extrudeOff = false;
boolean valveOff = false;
boolean oldexoff;
// if(p.isClosed())
// {
// for(int j = 1; j <= p.size(); j++)
// {
// int i = j%p.size();
// Rr2Point next = p.point((j+1)%p.size());
//
// if (printer.isCancelled())
// {
// printer.stopMotor();
// singleMove(posNow());
// move(posNow(), posNow(), lift, true, true);
// return;
// }
// if(acc)
// currentFeedrate = p.speed(i);
//
// oldexoff = extrudeOff;
// extrudeOff = j > stopExtruding || j == p.size();
// valveOff = j > stopValve || j == p.size();
//
// plot(p.point(i), next, extrudeOff, valveOff);
// if(oldexoff ^ extrudeOff)
// printer.printEndReverse();
// }
// } else
// {
for (int i = 1; i < p.size(); i++) {
Rr2Point next = p.point((i + 1) % p.size());
if (printer.isCancelled()) {
printer.stopMotor();
singleMove(posNow());
move(posNow(), posNow(), lift, lift, true);
return;
}
if (acc) currentFeedrate = p.speed(i);
oldexoff = extrudeOff;
extrudeOff = i > stopExtruding || i == p.size() - 1;
valveOff = i > stopValve || i == p.size() - 1;
// if(oldexoff ^ extrudeOff)
// printer.printEndReverse();
plot(p.point(i), next, extrudeOff, valveOff);
if (oldexoff ^ extrudeOff) printer.printEndReverse();
}
// }
if (p.isClosed()) move(p.point(0), p.point(0), false, false, true);
move(posNow(), posNow(), lift, lift, true);
// The last point is near where we want to start next
if (p.isClosed()) startNearHere = p.point(0);
else startNearHere = p.point(p.size() - 1);
if (simulationPlot != null) {
RrPolygonList pgl = new RrPolygonList();
pgl.add(p);
simulationPlot.add(pgl);
}
}
/** @throws Exception */
public void produce() throws Exception {
int movementSpeedZ;
boolean subtractive;
boolean interLayerCooling;
try {
subtractive = Preferences.loadGlobalBool("Subtractive");
movementSpeedZ = Preferences.loadGlobalInt("MovementSpeedZ(0..255)");
} catch (Exception ex) {
movementSpeedZ = 212;
subtractive = false;
System.err.println(
"Warning: could not load Z MovementSpeed and/or subtractive flag, using default");
}
try {
interLayerCooling = Preferences.loadGlobalBool("InterLayerCooling");
} catch (Exception ex) {
interLayerCooling = true;
System.err.println("Warning: could not load InterLayerCooling flag, using default");
}
reprap.setSpeedZ(movementSpeedZ);
Debug.d("Intialising reprap");
reprap.initialise();
Debug.d("Selecting material 0");
reprap.selectExtruder(0);
Debug.d("Setting temperature");
reprap.getExtruder().heatOn();
// A "warmup" segment to get things in working order
if (!subtractive) {
reprap.setSpeed(reprap.getExtruder().getXYSpeed());
reprap.moveTo(1, 1, 0, false, false);
// Workaround to get the thing to start heating up
reprap.printTo(1, 1, 0, true);
if (reprap.getExtruder().getNozzleClearTime() <= 0) {
Debug.d("Printing warmup segments, moving to (1,1)");
// Take it slow and easy.
Debug.d("Printing warmup segments, printing to (1,60)");
reprap.moveTo(1, 25, 0, false, false);
reprap.setSpeed(
LinePrinter.speedFix(
reprap.getExtruder().getXYSpeed(), reprap.getExtruder().getOutlineSpeed()));
reprap.printTo(1, 60, 0, false);
Debug.d("Printing warmup segments, printing to (3,60)");
reprap.printTo(3, 60, 0, false);
Debug.d("Printing warmup segments, printing to (3,25)");
reprap.printTo(3, 25, 0, true);
Debug.d("Warmup complete");
}
reprap.setSpeed(reprap.getFastSpeed());
}
// This should now split off layers one at a time
// and pass them to the LayerProducer.
boolean isEvenLayer = true;
STLSlice stlc;
double zMax;
bld.mouseToWorld();
stlc = new STLSlice(bld.getSTLs());
zMax = stlc.maxZ();
double startZ;
double endZ;
double stepZ;
if (subtractive) {
// Subtractive construction works from the top, downwards
startZ = zMax;
endZ = 0;
stepZ = -reprap.getExtruder().getExtrusionHeight();
reprap.setZManual(startZ);
} else {
// Normal constructive fabrication, start at the bottom and work up.
startZ = 0;
endZ = zMax;
stepZ = reprap.getExtruder().getExtrusionHeight();
}
int layerNumber = 0;
for (double z = startZ; subtractive ? z > endZ : z < endZ; z += stepZ) {
if (reprap.isCancelled()) break;
Debug.d("Commencing layer at " + z);
// Change Z height
reprap.moveTo(reprap.getX(), reprap.getY(), z, false, false);
if (reprap.isCancelled()) break;
// Pretend we've just finished a layer first time;
// All other times we really will have.
if (layerNumber == 0 || interLayerCooling) {
reprap.finishedLayer(layerNumber);
reprap.betweenLayers(layerNumber);
}
RrCSGPolygonList slice = stlc.slice(z + reprap.getExtruder().getExtrusionHeight() * 0.5);
BranchGroup lowerShell = stlc.getBelow();
LayerProducer layer = null;
if (slice.size() > 0)
layer =
new LayerProducer(
reprap,
z,
slice,
lowerShell,
isEvenLayer ? evenHatchDirection : oddHatchDirection,
layerNumber,
endZ);
if (layerNumber == 0 || interLayerCooling) {
reprap.startingLayer(layerNumber);
}
if (reprap.isCancelled()) break;
if (layer != null) {
layer.plot();
layer.destroy();
}
layer = null;
slice.destroy();
stlc.destroyLayer();
isEvenLayer = !isEvenLayer;
layerNumber++;
}
if (subtractive) reprap.moveTo(0, 0, startZ, true, true);
else reprap.moveTo(0, 0, reprap.getZ(), true, true);
reprap.terminate();
}
