public override string ReadLine()
{
if (LineIndex < GCodeFile.LineCount)
{
if (LineIndex > 1 &&
GCodeFile is GCodeMemoryFile currentMemoryFile &&
switchToGCode != null)
{
var prevlayerIndex = currentMemoryFile.GetLayerIndex(LineIndex - 1);
var layerIndex = currentMemoryFile.GetLayerIndex(LineIndex);
// we only try to switch as we are changing layers
if (prevlayerIndex < layerIndex)
{
var currentBottom = currentMemoryFile.GetLayerBottom(layerIndex);
// see if there is a layer height that is compatible in the new gcode
for (int i = 0; i < switchToGCode.LayerCount; i++)
{
// find the first layer in the new code that is greater than or eaqual to our current height
var switchBottom = switchToGCode.GetLayerBottom(i);
if (switchBottom >= currentBottom)
{
// is the current gcode the same or bigger than the new gcode
if (currentBottom >= switchBottom)
{
// switch the first time we can
GCodeFile = switchToGCode;
LineIndex = switchToGCode.GetFirstLayerInstruction(i);
var line = $"G92 E{switchToGCode.Instruction(LineIndex).EPosition:0.###}";
switchToGCode = null;
return(line);
}
else // only switch if we are within one layer height of the new gcode
{
if (currentBottom - switchBottom < switchToGCode.GetLayerHeight(layerIndex))
{
GCodeFile = switchToGCode;
LineIndex = switchToGCode.GetFirstLayerInstruction(i);
switchToGCode = null;
var line = $"G92 E{switchToGCode.Instruction(LineIndex).EPosition:0.###}";
switchToGCode = null;
return(line);
}
}
// we are done evaluating after the first found layer
break;
}
}
}
}
return(GCodeFile.Instruction(LineIndex++).Line);
}
return(null);
}
public override string ReadLine()
{
lock (locker)
{
if (commandQueue.Count > 0)
{
var lineToSend = commandQueue[0];
commandQueue.RemoveAt(0);
return(lineToSend);
}
}
if (LineIndex < GCodeFile.LineCount)
{
if (LineIndex > 1 &&
GCodeFile is GCodeMemoryFile currentMemoryFile &&
switchToGCode != null)
{
var prevlayerIndex = currentMemoryFile.GetLayerIndex(LineIndex - 1);
var layerIndex = currentMemoryFile.GetLayerIndex(LineIndex);
// we only try to switch as we are changing layers
if (prevlayerIndex < layerIndex)
{
var currentBottom = currentMemoryFile.GetLayerBottom(layerIndex);
// see if there is a layer height that is compatible in the new gcode
for (int i = 0; i < switchToGCode.LayerCount; i++)
{
// find the first layer in the new code that is greater than or equal to our current height
var switchBottom = switchToGCode.GetLayerBottom(i);
if (switchBottom >= currentBottom)
{
bool change = false;
// is the current gcode the same or bigger than the new gcode
if (currentBottom >= switchBottom)
{
change = true;
}
else // only switch if we are within one layer height of the new gcode
{
if (currentBottom - switchBottom < switchToGCode.GetLayerHeight(layerIndex))
{
change = true;
}
}
if (change)
{
GCodeFile = switchToGCode;
LineIndex = switchToGCode.GetFirstLayerInstruction(i);
var line = $"G92 E{switchToGCode.Instruction(LineIndex).EPosition:0.###}";
lock (locker)
{
commandQueue.Add(line);
}
switchToGCode = null;
// return a dwell to exhaust the command queue on the firmware
return("G4 P1");
}
// we are done evaluating after the first found layer
break;
}
}
}
}
return(GCodeFile.Instruction(LineIndex++).Line);
}
return(null);
}