Layer startLayer(float z, Layer prevLayer) {
// if (LayerOpen)
// return null;
// Z-Lift support
if (prevLayer != null && z == prevLayer.getZPosition()) return prevLayer;
// Layer lay = layer.get(z);
Layer lay = null;
int fanspeed = 0;
float bedtemp = 0;
float extemp = 0;
float lh = z;
if (prevLayer != null) {
if (prevLayer.isPrinted()) {
lh = (z - prevLayer.getZPosition());
}
fanspeed = prevLayer.getFanspeed();
bedtemp = prevLayer.getBedtemp();
extemp = prevLayer.getExttemp();
}
lay = new Layer(z, layercount, Constants.round2digits(lh));
lay.setUnit(unit); // remember last unit
lay.setFanspeed(fanspeed);
lay.setBedtemp(bedtemp);
lay.setExttemp(extemp);
// layer.put(z, lay);
layer.add(lay);
layercount++;
// System.out.println("Add Layer:"+z);
// LayerOpen = true;
return lay;
}
/**
* Main method to walk through the GCODES and analyze them.
*
* @return
*/
public void analyze() {
Layer currLayer = startLayer(0, null);
Layer lastprinted = currLayer;
// Current Positions & Speed
float xpos = 0;
Position currpos = new Position(0, 0);
float lastxpos = 0;
float lastypos = 0;
float lastzpos = 0;
boolean pos_changed = false;
float ypos = 0;
float zpos = 0;
float epos = 0;
float f_old = 1000;
float f_new = f_old;
float bedtemp = 0, extemp = 0;
boolean m101 = false; // BFB style extrusion
float m108 = 0; // Bfb style extr.
GCodeStore gcarr = getGcodes();
int gcnum = gcarr.size();
for (int ig = 0; ig < gcnum; ig++) {
GCode gc = gcarr.get(ig);
lastxpos = xpos;
lastypos = ypos;
lastzpos = zpos;
// Update Speed if specified
// TODO Clarify if default speed is the last used speed or not
if (gc.isInitialized(Constants.F_MASK)) {
if (!gc.isInitialized(Constants.X_MASK)
&& !gc.isInitialized(Constants.Y_MASK)
&& !gc.isInitialized(Constants.Z_MASK)
|| !ACCELERATION) {
f_old = gc.getF(); // no movement no acceleration
f_new = gc.getF(); // faccel is the same
} else {
f_new = gc.getF(); // acceleration
}
}
if (gc.getGcode() == Constants.GCDEF.G1
|| gc.getGcode() == Constants.GCDEF.G0
|| gc.getGcode() == Constants.GCDEF.G2
|| gc.getGcode() == Constants.GCDEF.G3) {
if (currLayer.highidx - currLayer.lowidx
< 5) { // only set layer temp, if not already printed too much
currLayer.setBedtemp(bedtemp);
currLayer.setExttemp(extemp);
}
// Detect Layer change and create new layers.
if (gc.isInitialized(Constants.Z_MASK) && gc.getZ() != currLayer.getZPosition()) {
// endLayer(currLayer); //finish old layer
if (currLayer.isPrinted()) {
lastprinted = currLayer;
} else if (lastprinted != currLayer) {
// Assume zlift
// Append non printed layers to last printed one
// Z-lift would otherwise cause thousands of layers
// for (GCode gco : currLayer.getGcodes()) {
// lastprinted.addGcodes(gco,ig);
// }
lastprinted.highidx = ig; // set high index to new index
layercount--;
layer.remove(currLayer);
// Minor problem is that the beginning of a new layer is sometimes without extrusion
// before the first z-lift
// this leads to assigning this to the previous printed layer.
}
currLayer = startLayer(gc.getZ(), lastprinted); // Start new layer
currLayer.setBedtemp(bedtemp);
currLayer.setExttemp(extemp);
}
float move = 0;
// Move G1 - X/Y at the same time
if (gc.getGcode() == Constants.GCDEF.G2 || gc.getGcode() == Constants.GCDEF.G3) {
// center I&J relative to x&y
float cx = (xpos + gc.getIx());
float cy = (ypos + gc.getJy());
float newxpos = gc.isInitialized(Constants.X_MASK) ? gc.getX() : xpos;
float newypos = gc.isInitialized(Constants.Y_MASK) ? gc.getY() : ypos;
// triangle
float bx = (newxpos - cx);
float by = (newypos - cy);
float ax = (xpos - cx);
float ay = (ypos - cy);
// Java drawarc is based on a bonding box
// Left upper edge of the bounding box
float xmove = Math.abs(cx - xpos);
float ymove = Math.abs(cy - ypos);
// assume a circle (no oval)
float radius = ((float) Math.sqrt((xmove * xmove) + (ymove * ymove)));
double angle1, angle2;
// Calculate right angle
if (gc.getGcode() == Constants.GCDEF.G2) {
angle1 = Math.atan2(by, bx) * (180 / Math.PI);
angle2 = Math.atan2(ay, ax) * (180 / Math.PI);
} else {
angle2 = Math.atan2(by, bx) * (180 / Math.PI);
angle1 = Math.atan2(ay, ax) * (180 / Math.PI);
}
double angle = (int) (angle2 - angle1);
xpos = newxpos;
ypos = newypos;
// Bogenlaenge
move = (float) (Math.PI * radius * angle / 180);
gc.setDistance(move);
} else if (gc.isInitialized(Constants.X_MASK) && gc.isInitialized(Constants.Y_MASK)) {
float xmove = Math.abs(xpos - gc.getX());
float ymove = Math.abs(ypos - gc.getY());
xpos = gc.getX();
ypos = gc.getY();
move = (float) Math.sqrt((xmove * xmove) + (ymove * ymove));
gc.setDistance(move);
} else if (gc.isInitialized(Constants.X_MASK)) {
move = Math.abs(xpos - gc.getX());
xpos = gc.getX();
gc.setDistance(move);
} else if (gc.isInitialized(Constants.Y_MASK)) {
move = Math.abs(ypos - gc.getY());
ypos = gc.getY();
gc.setDistance(move);
} else if (gc.isInitialized(Constants.E_MASK)) {
// Only E means we need to measure the time
move = Math.abs(epos - gc.getE());
} else if (gc.isInitialized(Constants.Z_MASK)) {
// Only Z means we need to measure the time
// TODO if Z + others move together, Z might take longest. Need to add time
move = Math.abs(zpos - gc.getZ());
}
// update Z pos when Z changed
if (gc.isInitialized(Constants.Z_MASK)) {
zpos = gc.getZ();
}
// Update epos and extrusion, not add time because the actual move time is already added
if (gc.isInitialized(Constants.E_MASK)) {
if (relativepos) {
gc.setExtrusion(gc.getE());
epos = 0;
} else {
float oldepos = gc.getE();
gc.setExtrusion(gc.getE() - epos);
epos = oldepos;
}
} else if (m101) {
float extr = m108 / 60 * (move / (f_new / 60)); // only for direct drive extr. with r=5
// gc.setInitialized(Constants.E_MASK, extr); //commented out to avoid E to be send to the
// printer
gc.setExtrusion(extr);
}
if (useAcceleration) {
// Calculate time with a linear acceleration
if (f_new >= f_old) {
// Assume sprinter _MAX_START_SPEED_UNITS_PER_SECOND {40.0,40.0,....}
gc.setTimeAccel(
move
/ (((Math.min(40 * 60, f_old) + f_new) / 2)
/ 60)); // set time with linear acceleration
// System.out.println("F"+f_old+"FA"+f_new+"time"+gc.getTime()+"ACCEL:
// "+(Math.abs(40-f_new)/gc.getTimeAccel()));
} else {
gc.setTimeAccel(move / ((f_old + f_new) / 2 / 60)); // set time with linear acceleration
// System.out.println("F"+f_old+"FA"+f_new+" DEACCEL:
// "+(Math.abs(f_old-f_new)/gc.getTimeAccel()));
}
} else {
// Calculate time without acceleration
gc.setTimeAccel(move / (f_new / 60)); // Set time w/o acceleration
}
f_old = f_new; // acceleration done. assign new speed
// Calculate print size
// if(gc.isInitialized(Constants.E_MASK) && gc.getE() > 0) {
if ((gc.isExtruding() && gc.getDistance() != 0) || m101) {
if (pos_changed) { // make sure that the start position is used for the boundary
// calculation
currLayer.addPosition(lastxpos, lastypos, lastzpos);
}
currLayer.addPosition(xpos, ypos, zpos);
pos_changed = true;
}
} else if (gc.getGcode() == Constants.GCDEF.G28
|| gc.getGcode() == Constants.GCDEF.G92) { // Initialize Axis
if (gc.isInitialized(Constants.E_MASK)) epos = gc.getE();
if (gc.isInitialized(Constants.X_MASK)) xpos = gc.getX();
if (gc.isInitialized(Constants.Y_MASK)) ypos = gc.getY();
if (gc.isInitialized(Constants.Z_MASK)) zpos = gc.getZ();
} else if (gc.getGcode() == Constants.GCDEF.G91) {
relativepos = true;
} else if (gc.getGcode() == Constants.GCDEF.G90) {
relativepos = false;
} else if (gc.getGcode() == Constants.GCDEF.G20
|| gc.getGcode() == Constants.GCDEF.G21) { // Assume that unit is only set once
currLayer.setUnit(gc.getUnit());
} else if (gc.getGcode() == Constants.GCDEF.M101) { // bfb style gcode
m101 = true;
} else if (gc.getGcode() == Constants.GCDEF.M103) {
m101 = false;
} else if (gc.getGcode() == Constants.GCDEF.T0) {
// extruders=Math.max(extruders, 1);
} else if (gc.getGcode() == Constants.GCDEF.T1) {
extruderCount = Math.max(extruderCount, 2);
} else if (gc.getGcode() == Constants.GCDEF.T2) {
extruderCount = Math.max(extruderCount, 3);
} else if (gc.getGcode() == Constants.GCDEF.T3) {
extruderCount = Math.max(extruderCount, 4);
} else if (gc.getGcode() == Constants.GCDEF.T4) {
extruderCount = Math.max(extruderCount, 5);
} else if (gc.getGcode() == Constants.GCDEF.M218 || gc.getGcode() == Constants.GCDEF.G10) {
float xoff = 0;
float yoff = 0;
if (gc.isInitialized(Constants.X_MASK)) xoff = gc.getX();
if (gc.isInitialized(Constants.Y_MASK)) yoff = gc.getY();
int toff = (int) gc.getR(); // T is stored in R field
if (extruderOffset == null)
extruderOffset = new Position[] {null, null, null, null, null}; // init for 5 extr.
if (toff <= 4) {
extruderOffset[toff] = new Position(xoff, yoff);
}
} else if (gc.getGcode() == Constants.GCDEF.M108) {
if (gc.isInitialized(Constants.E_MASK)) m108 = gc.getE();
} else if (gc.isInitialized(Constants.SF_MASK)) { // update Fan if specified
currLayer.setFanspeed((int) gc.getFanspeed());
} else if (gc.isInitialized(Constants.SE_MASK)) { // update Temperature if specified
extemp = gc.getExtemp();
} else if (gc.isInitialized(Constants.SB_MASK)) { // Update Bed Temperature if specified
bedtemp = gc.getBedtemp();
}
currpos.updatePos(xpos, ypos); // reuse currposs obj, gcode just copies the floats
gc.setCurrentPosition(currpos);
// Add Gcode to Layer
currLayer.addGcodes(gc, ig);
}
// System.out.println("Summarize Layers");
for (Layer closelayer : layer) {
endLayer(closelayer); // finish old layer
}
// End last layer
// endLayer(currLayer);
}