public void AlwaysRetractOnIslandChange()
{
string meshWithIslands = TestUtilities.GetStlPath("comb");
string gCodeWithIslands = TestUtilities.GetTempGCodePath("comb-box");
{
// load a model that has 3 islands
ConfigSettings config = new ConfigSettings();
// make sure no retractions are going to occur that are island crossing
config.MinimumTravelToCauseRetraction = 2000;
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(gCodeWithIslands);
processor.LoadStlFile(meshWithIslands);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] gcodeContents = TestUtilities.LoadGCodeFile(gCodeWithIslands);
int numLayers = TestUtilities.CountLayers(gcodeContents);
for (int i = 1; i < numLayers - 1; i++)
{
string[] layer = TestUtilities.GetGCodeForLayer(gcodeContents, i);
int totalRetractions = TestUtilities.CountRetractions(layer);
Assert.IsTrue(totalRetractions == 6);
}
}
}
public void SliceFileWithLeadingLowercaseN()
{
// Stl with leading n - tests past regression due to c:\path\name.stl where \n in path breaks during stuff/unstuff behavior
string stlPath = TestUtilities.GetStlPath("name-with-leading-n");
string gcodePath = TestUtilities.GetTempGCodePath(nameof(SliceFileWithLeadingLowercaseN));
// Create config file
var configFilePath = Path.ChangeExtension(gcodePath, "ini");
using (var stream = new StreamWriter(configFilePath))
{
stream.WriteLine($"additionalArgsToProcess = -m \"1,0,0,0,0,1,0,0,0,0,1,0,5,0,0,1\" \"{stlPath}\"");
}
// Slice file
MatterSlice.ProcessArgs($"-v -o \"{gcodePath}\" -c \"{configFilePath}\"");
// Load and validate generated GCode
string[] gcode = TestUtilities.LoadGCodeFile(gcodePath);
var movement = new MovementInfo();
// check layer 1
var layer1Info = TestUtilities.GetGCodeForLayer(gcode, 1);
var layer1Polygons = TestUtilities.GetExtrusionPolygons(layer1Info, ref movement);
Assert.AreEqual(4, layer1Polygons.Count);
// check layer 2
var layer2Info = TestUtilities.GetGCodeForLayer(gcode, 2);
var layer2Polygons = TestUtilities.GetExtrusionPolygons(layer2Info, ref movement);
Assert.AreEqual(4, layer2Polygons.Count);
}
public void CorrectIslandCount2()
{
void Test(bool mergeOverlaps, bool expandWalls)
{
string engineStlFile = TestUtilities.GetStlPath("all_layers");
string engineGCodeFile = TestUtilities.GetTempGCodePath($"all_layers - merge overlap {mergeOverlaps} - expand walls {expandWalls}.gcode");
var config = new ConfigSettings();
config.FirstLayerThickness = .2;
config.LayerThickness = .2;
config.NumberOfSkirtLoops = 0;
config.InfillPercent = 0;
config.NumberOfTopLayers = 0;
config.NumberOfBottomLayers = 0;
config.NumberOfPerimeters = 1;
config.MergeOverlappingLines = mergeOverlaps;
config.ExpandThinWalls = expandWalls;
config.FillThinGaps = false;
config.AvoidCrossingPerimeters = false;
var processor = new FffProcessor(config);
processor.SetTargetFile(engineGCodeFile);
processor.LoadStlFile(engineStlFile);
// slice and save it
processor.DoProcessing();
processor.Dispose();
var loadedGCode = TestUtilities.LoadGCodeFile(engineGCodeFile);
var layers = TestUtilities.LayerCount(loadedGCode);
Assert.AreEqual(45, layers);
var expectedIslands = new int[]
{
7, 7, 7, 5, 5, // 0 - 4
5, 5, 5, 5, 5, // 5 - 9
5, 5, 5, 5, 5, // 10 - 14
5, 5, 5, 5, 5,
5, 5, 5, 5, 5,
5, 4, 4, 4, 4,
4, 4, 4, 4, 4,
4, 4, 4, 4, 4,
4, 4, 4, 4, 4,
};
var layerPolygons = TestUtilities.GetAllLayersExtrusionPolygons(loadedGCode);
Assert.AreEqual(45, layerPolygons.Where(i => i.Count > 2).Count());
for (int i = 1; i < layers; i++)
{
Assert.AreEqual(expectedIslands[i], layerPolygons[i].Where(p => p.Count > 2).Count());
}
}
Test(false, false);
Test(false, true);
Test(true, false);
Test(true, true);
}
public void AllPerimetersGoInPolgonDirection()
{
string thinWallsSTL = TestUtilities.GetStlPath("ThinWallsRect.stl");
string thinWallsGCode = TestUtilities.GetTempGCodePath("ThinWallsRect.stl");
{
// load a model that is correctly manifold
ConfigSettings config = new ConfigSettings();
config.ExpandThinWalls = true;
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(thinWallsGCode);
processor.LoadStlFile(thinWallsSTL);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] thinWallsGCodeContent = TestUtilities.LoadGCodeFile(thinWallsGCode);
int layerCount = TestUtilities.CountLayers(thinWallsGCodeContent);
for (int i = 2; i < layerCount - 2; i++)
{
var layerGCode = TestUtilities.GetGCodeForLayer(thinWallsGCodeContent, i);
var polygons = TestUtilities.GetExtrusionPolygons(layerGCode, 1000);
foreach (var polygon in polygons)
{
Assert.AreEqual(1, polygon.GetWindingDirection());
}
}
}
}
public void SliceFileWithSpaceInName()
{
// Stl with space in file name - tests past regression due to spaces in file name
string stlPath = TestUtilities.GetStlPath("Box Left");
string gcodePath = TestUtilities.GetTempGCodePath(nameof(SliceFileWithSpaceInName));
// Create config file
var configFilePath = Path.ChangeExtension(gcodePath, "ini");
using (var stream = new StreamWriter(configFilePath))
{
stream.WriteLine($"additionalArgsToProcess = -m \"1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1\" \"{stlPath}\"");
}
// Slice file
MatterSlice.ProcessArgs($"-v -o \"{gcodePath}\" -c \"{configFilePath}\"");
// Load and validate generated GCode
string[] gcode = TestUtilities.LoadGCodeFile(gcodePath);
var movement = default(MovementInfo);
// check layer 1
var layer1Info = TestUtilities.GetLayer(gcode, 1);
var layer1Polygons = TestUtilities.GetExtrusionPolygonsForLayer(layer1Info, ref movement, false);
Assert.AreEqual(2, layer1Polygons.Where(i => i.Count > 2).Count());
// check layer 2
var layer2Info = TestUtilities.GetLayer(gcode, 2);
var layer2Polygons = TestUtilities.GetExtrusionPolygonsForLayer(layer2Info, ref movement, false);
Assert.AreEqual(2, layer2Polygons.Where(i => i.Count > 2).Count());
}
internal static void CheckPolysAreSimilar(string aGCodeFile, string bGCodeFile)
{
var aLoadedGcode = TestUtilities.LoadGCodeFile(aGCodeFile);
var bLoadedGCode = TestUtilities.LoadGCodeFile(bGCodeFile);
var aLayerCount = TestUtilities.CountLayers(aLoadedGcode);
Assert.AreEqual(aLayerCount, TestUtilities.CountLayers(bLoadedGCode));
for (int layerIndex = 0; layerIndex < aLayerCount; layerIndex++)
{
var aLayerGCode = TestUtilities.GetGCodeForLayer(aLoadedGcode, layerIndex);
var bLayerGCode = TestUtilities.GetGCodeForLayer(bLoadedGCode, layerIndex);
var aPolys = TestUtilities.GetExtrusionPolygons(aLayerGCode);
var bPolys = TestUtilities.GetExtrusionPolygons(bLayerGCode);
// Assert.AreEqual(aPolys.Count, bPolys.Count);
if (aPolys.Count > 0)
{
var aPoly = aPolys[0];
var bPoly = bPolys[0];
for (int aPointIndex = 0; aPointIndex < aPoly.Count; aPointIndex++)
{
var found = false;
for (int bPointIndex = 0; bPointIndex < bPoly.Count; bPointIndex++)
{
if ((aPoly[aPointIndex] - bPoly[bPointIndex]).Length() < 10)
{
found = true;
break;
}
}
Assert.IsTrue(found);
}
}
}
}
public void SingleLayerCreated()
{
string point3mmStlFile = TestUtilities.GetStlPath("Point3mm");
string point3mmGCodeFile = TestUtilities.GetTempGCodePath("Point3mm.gcode");
var config = new ConfigSettings();
config.FirstLayerThickness = .25;
config.LayerThickness = .25;
config.NumberOfSkirtLoops = 0;
var processor = new FffProcessor(config);
processor.SetTargetFile(point3mmGCodeFile);
processor.LoadStlFile(point3mmStlFile);
// slice and save it
processor.DoProcessing();
processor.Finalize();
var loadedGCode = TestUtilities.LoadGCodeFile(point3mmGCodeFile);
var layers = TestUtilities.CountLayers(loadedGCode);
Assert.AreEqual(1, layers);
var totalExtrusions = TestUtilities.GetExtrusionPolygons(loadedGCode);
#if __ANDROID__
Assert.IsTrue(totalExtrusions.Count > 0);
Assert.IsTrue(totalExtrusions[0].PolygonLength() > 100);
#else
Assert.Greater(totalExtrusions.Count, 0);
Assert.Greater(totalExtrusions[0].PolygonLength(), 100);
#endif
}
public void CreatingInfill()
{
string infillSTL = TestUtilities.GetStlPath("has_infill");
string infillGCode = TestUtilities.GetTempGCodePath("has_infill.gcode");
{
// load a model that is correctly manifold
var config = new ConfigSettings();
config.ExpandThinWalls = true;
config.NumberOfPerimeters = 1;
config.AvoidCrossingPerimeters = false;
var processor = new FffProcessor(config);
processor.SetTargetFile(infillGCode);
processor.LoadStlFile(infillSTL);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] loadedGCode = TestUtilities.LoadGCodeFile(infillGCode);
for (int i = 0; i < 100; i++)
{
var movements = loadedGCode.GetGCodeForLayer(i).Movements().ToList();
Assert.GreaterOrEqual(movements.Count, 100, $"Layer {i} should have more than 100 extrusions.");
}
}
}
public void AllPerimetersGoInPolgonDirection()
{
string thinWallsSTL = TestUtilities.GetStlPath("ThinWallsRect");
string thinWallsGCode = TestUtilities.GetTempGCodePath("ThinWallsRect.gcode");
{
// load a model that is correctly manifold
var config = new ConfigSettings();
config.ExpandThinWalls = true;
config.MergeOverlappingLines = false;
var processor = new FffProcessor(config);
processor.SetTargetFile(thinWallsGCode);
processor.LoadStlFile(thinWallsSTL);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] loadedGCode = TestUtilities.LoadGCodeFile(thinWallsGCode);
int layerCount = TestUtilities.LayerCount(loadedGCode);
var layerPolygons = loadedGCode.GetAllExtrusionPolygons();
for (int i = 2; i < layerCount - 2; i++)
{
Assert.LessOrEqual(layerPolygons[i].Count, 4, "We should not have add more than the 4 sides");
foreach (var polygon in layerPolygons[i])
{
Assert.AreEqual(1, polygon.GetWindingDirection());
}
}
}
}
public void NoLayerChangeRetractions()
{
string infillSTL = TestUtilities.GetStlPath("no_layer_change_retractions");
string infillGCode = TestUtilities.GetTempGCodePath("no_layer_change_retractions.gcode");
{
// load a model that is correctly manifold
var config = new ConfigSettings();
string settingsPath = TestContext.CurrentContext.ResolveProjectPath(4, "Tests", "TestData", "no_retractions_config.ini");
config.ReadSettings(settingsPath);
var processor = new FffProcessor(config);
processor.SetTargetFile(infillGCode);
processor.LoadStlFile(infillSTL);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] gcodeContents = TestUtilities.LoadGCodeFile(infillGCode);
int numLayers = TestUtilities.LayerCount(gcodeContents);
for (int i = 1; i < numLayers - 2; i++)
{
string[] layer = TestUtilities.GetGCodeForLayer(gcodeContents, i);
int totalRetractions = TestUtilities.CountRetractions(layer);
Assert.IsTrue(totalRetractions == 0);
}
}
}
public void SliceFileWithSpaceInGCodePath()
{
// GCode file with space in file name
string gcodePath = TestUtilities.GetTempGCodePath("gcode file with space");
string stlPath = TestUtilities.GetStlPath("Box Left");
// Create config file
var configFilePath = Path.ChangeExtension(gcodePath, "ini");
using (var stream = new StreamWriter(configFilePath))
{
stream.WriteLine($"additionalArgsToProcess = -m \"1,0,0,0,0,1,0,0,0,0,1,0,5,0,0,1\" \"{stlPath}\"");
}
// Slice file
MatterSlice.ProcessArgs($"-v -o \"{gcodePath}\" -c \"{configFilePath}\"");
// Load and validate generated GCode
string[] gcode = TestUtilities.LoadGCodeFile(gcodePath);
var movement = new MovementInfo();
// check layer 1
var layer1Info = TestUtilities.GetGCodeForLayer(gcode, 1);
var layer1Polygons = TestUtilities.GetExtrusionPolygons(layer1Info, ref movement);
Assert.AreEqual(4, layer1Polygons.Count);
// check layer 2
var layer2Info = TestUtilities.GetGCodeForLayer(gcode, 2);
var layer2Polygons = TestUtilities.GetExtrusionPolygons(layer2Info, ref movement);
Assert.AreEqual(4, layer2Polygons.Count);
}
public void CorrectNumberOfLayersForLayerHeights()
{
// test .1 layer height
Assert.AreEqual(100, TestUtilities.CountLayers(TestUtilities.LoadGCodeFile(CreateGCodeForLayerHeights(.1, .1))));
Assert.AreEqual(99, TestUtilities.CountLayers(TestUtilities.LoadGCodeFile(CreateGCodeForLayerHeights(.2, .1))));
Assert.AreEqual(50, TestUtilities.CountLayers(TestUtilities.LoadGCodeFile(CreateGCodeForLayerHeights(.2, .2))));
Assert.AreEqual(51, TestUtilities.CountLayers(TestUtilities.LoadGCodeFile(CreateGCodeForLayerHeights(.05, .2))));
}
public void AllInsidesBeforeAnyOutsides()
{
string thinAttachStlFile = TestUtilities.GetStlPath("Thin Attach");
string thinAttachGCodeFile = TestUtilities.GetTempGCodePath("Thin Attach.gcode");
ConfigSettings config = new ConfigSettings();
config.NumberOfPerimeters = 2;
config.InfillPercent = 0;
config.NumberOfTopLayers = 0;
config.FirstLayerExtrusionWidth = .4;
config.NumberOfBottomLayers = 0;
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(thinAttachGCodeFile);
processor.LoadStlFile(thinAttachStlFile);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] gcode = TestUtilities.LoadGCodeFile(thinAttachGCodeFile);
// should look like this
// ____________ ____________
// | _______ | | _______ |
// | | | | | | | |
// | | | |___| | | |
// | | | ____ | | |
// | |______| | | |______| |
// |__________| |__________|
MovementInfo movement = new MovementInfo();
{
// check layer 1
string[] layer1Info = TestUtilities.GetGCodeForLayer(gcode, 1);
Polygons layer1Polygons = TestUtilities.GetExtrusionPolygons(layer1Info, ref movement);
// make sure there are 5
Assert.IsTrue(layer1Polygons.Count == 3);
// make sure they are in the right order (two inner polygons print first)
Assert.IsTrue(layer1Polygons[0].MinX() > layer1Polygons[1].MinX());
Assert.IsTrue(layer1Polygons[0].MinX() > layer1Polygons[2].MinX());
}
{
// check layer 2
string[] layer2Info = TestUtilities.GetGCodeForLayer(gcode, 2);
Polygons layer2Polygons = TestUtilities.GetExtrusionPolygons(layer2Info, ref movement);
// make sure there are 3
Assert.IsTrue(layer2Polygons.Count == 3);
// make sure they are in the right order (two inner polygons print first)
Assert.IsTrue(layer2Polygons[0].MinX() > layer2Polygons[1].MinX());
Assert.IsTrue(layer2Polygons[0].MinX() > layer2Polygons[2].MinX());
}
}
public void ThinRingHasNoCrossingSegments()
{
string infillSTL = TestUtilities.GetStlPath("thin_ring");
string infillGCode = TestUtilities.GetTempGCodePath("thin_ring.gcode");
{
// load a model that is correctly manifold
var config = new ConfigSettings();
string settingsPath = TestContext.CurrentContext.ResolveProjectPath(4, "Tests", "TestData", "thin_ring_config.ini");
config.ReadSettings(settingsPath);
config.SkirtDistanceFromObject = 7.5;
var processor = new FffProcessor(config);
processor.SetTargetFile(infillGCode);
processor.LoadStlFile(infillSTL);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] loadedGCode = TestUtilities.LoadGCodeFile(infillGCode);
double LongestMove(Polygons polys)
{
double longest = 0;
foreach (var poly in polys)
{
for (int j = 0; j < poly.Count - 1; j++)
{
var next = j + 1;
var length = (poly[j] - poly[next]).Length();
longest = Math.Max(longest, length);
}
}
return(longest);
}
var layers = loadedGCode.GetAllExtrusionPolygons();
for (int i = 0; i < 15; i++)
{
if (i == 0)
{
// on the first layer we are looking for a single move that is the right length from the skirt to the part
var longest = LongestMove(layers[i]);
Assert.AreEqual(config.SkirtDistance_um + config.ExtrusionWidth_um, longest, 50, "The skirt must be the correct distance from the outside of the part");
}
else // check that there are no
{
var longest = LongestMove(layers[i]);
Assert.Less(longest, 3000, $"Segment length was: {longest}, should be smaller.");
}
}
}
}
public void OuterPerimeterFirstCorrect()
{
string box20MmStlFile = TestUtilities.GetStlPath("20mm-box");
string boxGCodeFile = TestUtilities.GetTempGCodePath("20mm-box-perimeter.gcode");
var config = new ConfigSettings();
config.NumberOfPerimeters = 3;
config.OutsidePerimetersFirst = true;
config.InfillPercent = 0;
config.NumberOfTopLayers = 0;
config.NumberOfBottomLayers = 0;
var processor = new FffProcessor(config);
processor.SetTargetFile(boxGCodeFile);
processor.LoadStlFile(box20MmStlFile);
// slice and save it
processor.DoProcessing();
processor.Dispose();
string[] gcode = TestUtilities.LoadGCodeFile(boxGCodeFile);
var outerPerimeterIndex = 1;
var secondPerimeterIndex = 2;
var thirdPerimeterIndex = 0;
var movement = default(MovementInfo);
{
// check layer 1
var layer1Info = TestUtilities.GetLayer(gcode, 1);
var layerPolygons = TestUtilities.GetExtrusionPolygonsForLayer(layer1Info, ref movement);
// make sure there are 3
Assert.IsTrue(layerPolygons.Count == 3);
// perimeters should be in 3 1 2 order so that we have priming happening before the outer perimeter
Assert.IsTrue(layerPolygons[outerPerimeterIndex].MinX() < layerPolygons[secondPerimeterIndex].MinX());
Assert.IsTrue(layerPolygons[outerPerimeterIndex].MinX() < layerPolygons[thirdPerimeterIndex].MinX());
Assert.IsTrue(layerPolygons[secondPerimeterIndex].MinX() < layerPolygons[thirdPerimeterIndex].MinX());
}
{
// check layer 2
var layer2Info = TestUtilities.GetLayer(gcode, 2);
var layerPolygons = TestUtilities.GetExtrusionPolygonsForLayer(layer2Info, ref movement);
// make sure there are 3
Assert.IsTrue(layerPolygons.Count == 3);
// make sure they are in the right order (other layers are inside out)
Assert.IsTrue(layerPolygons[outerPerimeterIndex].MinX() < layerPolygons[secondPerimeterIndex].MinX());
Assert.IsTrue(layerPolygons[outerPerimeterIndex].MinX() < layerPolygons[thirdPerimeterIndex].MinX());
Assert.IsTrue(layerPolygons[secondPerimeterIndex].MinX() < layerPolygons[thirdPerimeterIndex].MinX());
}
}
private static void CheckLayersIncrement(string stlFile, string gcodeFile)
{
string risingLayersStlFile = TestUtilities.GetStlPath(stlFile);
string risingLayersGCodeFileName = TestUtilities.GetTempGCodePath(gcodeFile);
ConfigSettings config = new ConfigSettings();
config.FirstLayerThickness = .2;
config.LayerThickness = .2;
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(risingLayersGCodeFileName);
processor.LoadStlFile(risingLayersStlFile);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] risingLayersGCodeContent = TestUtilities.LoadGCodeFile(risingLayersGCodeFileName);
// test .1 layer height
int layerCount = TestUtilities.CountLayers(risingLayersGCodeContent);
Assert.IsTrue(layerCount == 50);
MovementInfo startingPosition = new MovementInfo();
for (int layerIndex = 0; layerIndex < layerCount; layerIndex++)
{
string[] layerInfo = TestUtilities.GetGCodeForLayer(risingLayersGCodeContent, layerIndex);
int movementIndex = 0;
// check that all layers move up
foreach (MovementInfo movement in TestUtilities.Movements(layerInfo, startingPosition))
{
if (movement.line.Contains("X") ||
movement.line.Contains("Y") ||
movement.line.Contains("Z"))
{
if (layerIndex > 0)
{
Assert.AreEqual(movement.position.z, .2 + layerIndex * .2, .001);
Assert.IsTrue(movement.position.z >= startingPosition.position.z);
}
}
// always go up
startingPosition.position = new Vector3(0, 0, Math.Max(startingPosition.position.z, movement.position.z));
movementIndex++;
}
}
}
public void ThinRingHasNoCrossingSegments2()
{
string infillSTL = TestUtilities.GetStlPath("thin_gap_fill_ring");
string infillGCode = TestUtilities.GetTempGCodePath("thin_gap_fill_ring.gcode");
{
// load a model that is correctly manifold
var config = new ConfigSettings();
string settingsPath = TestContext.CurrentContext.ResolveProjectPath(4, "Tests", "TestData", "thin_gap_fill.ini");
config.ReadSettings(settingsPath);
config.SkirtDistanceFromObject = 7.5;
var processor = new FffProcessor(config);
processor.SetTargetFile(infillGCode);
processor.LoadStlFile(infillSTL);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] loadedGCode = TestUtilities.LoadGCodeFile(infillGCode);
double LongestMove(Polygons polys)
{
double longest = 0;
var last = polys[0][0];
foreach (var poly in polys)
{
for (int j = 0; j < poly.Count; j++)
{
var length = (poly[j] - last).Length();
if (length > 3000)
{
int a = 0;
}
longest = Math.Max(longest, length);
last = poly[j];
}
}
return(longest);
}
var layers = loadedGCode.GetAllExtrusionPolygons();
// start at 6 to skip the bottom layers (only care about the ring)
for (int i = 6; i < layers.Count - 1; i++)
{
var longest = LongestMove(layers[i]);
Assert.Less(longest, 3000, $"Segment length was: {longest}, should be smaller.");
}
}
}
public void InnerPerimeterFirstCorrect()
{
// By default we need to do the inner perimeters first
string box20MmStlFile = TestUtilities.GetStlPath("20mm-box");
string boxGCodeFile = TestUtilities.GetTempGCodePath("20mm-box-perimeter.gcode");
ConfigSettings config = new ConfigSettings();
config.NumberOfPerimeters = 3;
config.InfillPercent = 0;
config.NumberOfTopLayers = 0;
config.NumberOfBottomLayers = 0;
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(boxGCodeFile);
processor.LoadStlFile(box20MmStlFile);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] gcode = TestUtilities.LoadGCodeFile(boxGCodeFile);
MovementInfo movement = new MovementInfo();
{
// check layer 1
string[] layer1Info = TestUtilities.GetGCodeForLayer(gcode, 1);
Polygons layer1Polygons = TestUtilities.GetExtrusionPolygons(layer1Info, ref movement);
// make sure there are 3
Assert.IsTrue(layer1Polygons.Count == 3);
// make sure they are in the right order (first layer is outside in)
Assert.IsTrue(layer1Polygons[0].MinX() > layer1Polygons[1].MinX());
}
{
// check layer 2
string[] layer2Info = TestUtilities.GetGCodeForLayer(gcode, 2);
Polygons layer2Polygons = TestUtilities.GetExtrusionPolygons(layer2Info, ref movement);
// make sure there are 3
Assert.IsTrue(layer2Polygons.Count == 3);
// make sure they are in the right order (other layers are inside out)
Assert.IsTrue(layer2Polygons[0].MinX() > layer2Polygons[1].MinX());
}
}
public static string[] SliceAndGetGCode(string stlName, Action <ConfigSettings> action = null)
{
string thinWallsSTL = TestUtilities.GetStlPath($"{stlName}.stl");
string thinWallsGCode = TestUtilities.GetTempGCodePath($"{stlName}.gcode");
var config = new ConfigSettings();
action?.Invoke(config);
var processor = new FffProcessor(config);
processor.SetTargetFile(thinWallsGCode);
processor.LoadStlFile(thinWallsSTL);
// slice and save it
processor.DoProcessing();
processor.Dispose();
return(TestUtilities.LoadGCodeFile(thinWallsGCode));
}
public void DualMaterialNoRetraction(int material)
{
GCodeExport.CheckForZeroPositions = false;
string shortCubeName = "CubePoint2High";
string shortCube = TestUtilities.GetStlPath(shortCubeName);
string outputGCodeFileName = TestUtilities.GetTempGCodePath($"CubeNoRetractions{material}");
var config = new ConfigSettings();
config.ExtruderCount = 2;
config.FirstLayerThickness = .2;
config.LayerThickness = .2;
var processor = new FffProcessor(config);
processor.SetTargetFile(outputGCodeFileName);
for (int i = 0; i < material; i++)
{
string skipExtruder = TestUtilities.GetStlPath("TooSmallToPrint");
processor.LoadStlFile(skipExtruder);
}
processor.LoadStlFile(shortCube);
// slice and save it
processor.DoProcessing();
processor.Dispose();
string[] gCodeContent = TestUtilities.LoadGCodeFile(outputGCodeFileName);
// test layer count
int layerCount = TestUtilities.LayerCount(gCodeContent);
Assert.AreEqual(1, layerCount);
int retractions = TestUtilities.CountRetractions(gCodeContent);
Assert.AreEqual(1, retractions, $"Material {material} should have no retractions");
}
public void SupportConnectedOptimaly()
{
string thinWallsSTL = TestUtilities.GetStlPath("two disks");
string thinWallsGCode = TestUtilities.GetTempGCodePath("two disks.gcode");
{
// load a model that is correctly manifold
var config = new ConfigSettings();
config.GenerateSupport = true;
var processor = new FffProcessor(config);
processor.SetTargetFile(thinWallsGCode);
processor.LoadStlFile(thinWallsSTL);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] loadedGCode = TestUtilities.LoadGCodeFile(thinWallsGCode);
int layerCount = TestUtilities.LayerCount(loadedGCode);
for (int i = 0; i < layerCount; i++)
{
var movements = loadedGCode.GetGCodeForLayer(i).Movements().ToList();
int longMoveCount = 0;
for (var j = 1; j < movements.Count - 2; j++)
{
var start = movements[j - 1];
var end = movements[j];
if (end.extrusion - start.extrusion == 0 &&
(end.position - start.position).Length > 5)
{
longMoveCount++;
}
}
Assert.LessOrEqual(longMoveCount, 6);
}
}
}
public void SupportTowerHasCorrectRetractions()
{
string infillSTLA = TestUtilities.GetStlPath("dice_body");
string infillSTLB = TestUtilities.GetStlPath("dice_numbers");
string infillGCode = TestUtilities.GetTempGCodePath("dice_dual.gcode");
{
// load a model that is correctly manifold
var config = new ConfigSettings();
string settingsPath = TestContext.CurrentContext.ResolveProjectPath(4, "Tests", "TestData", "thin_ring_config.ini");
config.ReadSettings(settingsPath);
var processor = new FffProcessor(config);
processor.SetTargetFile(infillGCode);
processor.LoadStlFile(infillSTLA);
processor.LoadStlFile(infillSTLB);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] loadedGCode = TestUtilities.LoadGCodeFile(infillGCode);
Assert.IsTrue(loadedGCode.Contains("T1 ; switch extruder"));
Assert.IsTrue(loadedGCode.Contains("T0 ; switch extruder"));
var layers = loadedGCode.GetAllExtrusionPolygons();
for (int i = 0; i < layers.Count; i++)
{
var polys = layers[i];
foreach (var poly in polys)
{
for (int j = 0; j < poly.Count - 1; j++)
{
int a = 0;
}
}
}
}
}
public void CorrectIslandCount()
{
string engineStlFile = TestUtilities.GetStlPath("Engine-Benchmark");
string engineGCodeFile = TestUtilities.GetTempGCodePath("Engine-Benchmark.gcode");
var config = new ConfigSettings();
config.FirstLayerThickness = .2;
config.LayerThickness = .2;
config.NumberOfSkirtLoops = 0;
config.InfillPercent = 0;
config.NumberOfTopLayers = 0;
config.NumberOfBottomLayers = 0;
config.NumberOfPerimeters = 1;
config.MergeOverlappingLines = false;
var processor = new FffProcessor(config);
processor.SetTargetFile(engineGCodeFile);
processor.LoadStlFile(engineStlFile);
// slice and save it
processor.DoProcessing();
processor.Dispose();
var loadedGCode = TestUtilities.LoadGCodeFile(engineGCodeFile);
var layers = TestUtilities.LayerCount(loadedGCode);
Assert.AreEqual(195, layers);
var layerPolygons = TestUtilities.GetAllLayersExtrusionPolygons(loadedGCode);
Assert.AreEqual(17, layerPolygons[32].Count);
for (int i = 33; i < 44; i++)
{
Assert.AreEqual(13, layerPolygons[i].Where(p => p.Count > 2).Count());
}
}
private static void CheckSpiralCylinder(string stlFile, string gcodeFile, int expectedLayers, bool enableThinWalls = false)
{
string cylinderStlFile = TestUtilities.GetStlPath(stlFile);
string cylinderGCodeFileName = TestUtilities.GetTempGCodePath(gcodeFile);
ConfigSettings config = new ConfigSettings();
config.FirstLayerThickness = .2;
config.LayerThickness = .2;
if (enableThinWalls)
{
config.ExpandThinWalls = true;
config.FillThinGaps = true;
}
config.NumberOfBottomLayers = 0;
config.ContinuousSpiralOuterPerimeter = true;
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(cylinderGCodeFileName);
processor.LoadStlFile(cylinderStlFile);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] cylinderGCodeContent = TestUtilities.LoadGCodeFile(cylinderGCodeFileName);
// test .1 layer height
int layerCount = TestUtilities.CountLayers(cylinderGCodeContent);
Assert.IsTrue(layerCount == expectedLayers);
for (int i = 2; i < layerCount - 3; i++)
{
string[] layerInfo = TestUtilities.GetGCodeForLayer(cylinderGCodeContent, i);
// check that all layers move up continuously
MovementInfo lastMovement = new MovementInfo();
foreach (MovementInfo movement in TestUtilities.Movements(layerInfo))
{
Assert.IsTrue(movement.position.z > lastMovement.position.z);
lastMovement = movement;
}
bool first = true;
lastMovement = new MovementInfo();
// check that all moves are on the outside of the cylinder (not crossing to a new point)
foreach (MovementInfo movement in TestUtilities.Movements(layerInfo))
{
if (!first)
{
Assert.IsTrue((movement.position - lastMovement.position).Length < 2);
Vector3 xyOnly = new Vector3(movement.position.x, movement.position.y, 0);
Assert.AreEqual(9.8, xyOnly.Length, .3);
}
lastMovement = movement;
first = false;
}
}
}
private static void CheckSpiralCone(string stlFile, string gcodeFile, bool enableThinWalls = false)
{
string cylinderStlFile = TestUtilities.GetStlPath(stlFile);
string cylinderGCodeFileName = TestUtilities.GetTempGCodePath(gcodeFile);
var config = new ConfigSettings
{
FirstLayerThickness = .2,
LayerThickness = .2,
NumberOfBottomLayers = 0,
ContinuousSpiralOuterPerimeter = true
};
if (enableThinWalls)
{
config.ExpandThinWalls = true;
config.FillThinGaps = true;
}
var processor = new FffProcessor(config);
processor.SetTargetFile(cylinderGCodeFileName);
processor.LoadStlFile(cylinderStlFile);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] cylinderGCodeContent = TestUtilities.LoadGCodeFile(cylinderGCodeFileName);
// test .1 layer height
int layerCount = TestUtilities.CountLayers(cylinderGCodeContent);
Assert.AreEqual(50, layerCount, "SpiralCone should have 50 layers");
for (int i = 2; i < layerCount - 3; i++)
{
string[] layerInfo = TestUtilities.GetGCodeForLayer(cylinderGCodeContent, i);
// check that all layers move up continuously
MovementInfo lastMovement = new MovementInfo();
foreach (MovementInfo movement in TestUtilities.Movements(layerInfo))
{
#if __ANDROID__
Assert.IsTrue(movement.position.z > lastMovement.position.z);
#else
Assert.Greater(movement.position.z, lastMovement.position.z, "Z position should increment per layer");
#endif
lastMovement = movement;
}
double radiusForLayer = 5.0 + (20.0 - 5.0) / layerCount * i;
bool first = true;
lastMovement = new MovementInfo();
// check that all moves are on the outside of the cylinder (not crossing to a new point)
foreach (MovementInfo movement in TestUtilities.Movements(layerInfo))
{
if (!first)
{
Assert.IsTrue((movement.position - lastMovement.position).Length < 2);
Vector3 xyOnly = new Vector3(movement.position.x, movement.position.y, 0);
Assert.AreEqual(radiusForLayer, xyOnly.Length, .3);
}
lastMovement = movement;
first = false;
}
}
}
public void ExportGCodeWithRaft()
{
//test that file has raft
Assert.IsTrue(TestUtilities.CheckForRaft(TestUtilities.LoadGCodeFile(CreateGCodeWithRaft(true))) == true);
Assert.IsTrue(TestUtilities.CheckForRaft(TestUtilities.LoadGCodeFile(CreateGcodeWithoutRaft(false))) == false);
}
public void DualMaterialPrintMovesCorrectly(bool createWipeTower)
{
string leftPart = "Box Left";
string rightPart = "Box Right";
string leftStlFile = TestUtilities.GetStlPath(leftPart);
string rightStlFile = TestUtilities.GetStlPath(rightPart);
string outputGCodeFileName = TestUtilities.GetTempGCodePath("DualPartMoves");
ConfigSettings config = new ConfigSettings();
config.ExtruderCount = 2;
config.FirstLayerThickness = .2;
config.LayerThickness = .2;
config.NumberOfBottomLayers = 0;
if (createWipeTower)
{
config.WipeTowerSize = 10;
}
else
{
config.WipeTowerSize = 0;
}
var processor = new FffProcessor(config);
processor.SetTargetFile(outputGCodeFileName);
processor.LoadStlFile(leftStlFile);
processor.LoadStlFile(rightStlFile);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] gCodeContent = TestUtilities.LoadGCodeFile(outputGCodeFileName);
// test .1 layer height
int layerCount = TestUtilities.CountLayers(gCodeContent);
Assert.IsTrue(layerCount == 50);
bool hadMoveLessThan85 = false;
MovementInfo lastMovement = new MovementInfo();
for (int i = 0; i < layerCount - 3; i++)
{
string[] layerInfo = TestUtilities.GetGCodeForLayer(gCodeContent, i);
// check that all layers move up continuously
foreach (MovementInfo movement in TestUtilities.Movements(layerInfo, lastMovement, onlyG1s: true))
{
if (i > 2)
{
if (createWipeTower)
{
Assert.IsTrue(movement.position.x > 75 && movement.position.y > 10, "Moves don't go to 0");
if (movement.position.x < 85)
{
hadMoveLessThan85 = true;
}
}
else
{
Assert.IsTrue(movement.position.x > 85 && movement.position.y > 10, "Moves don't go to 0");
}
}
lastMovement = movement;
}
}
if (createWipeTower)
{
Assert.IsTrue(hadMoveLessThan85, "found a wipe tower");
}
}
public void DoHas2WallRingsAllTheWayUp(string fileName, int expectedLayerCount, bool checkRadius = false)
{
string stlFile = TestUtilities.GetStlPath(fileName);
string gCodeFile = TestUtilities.GetTempGCodePath(fileName + ".gcode");
ConfigSettings config = new ConfigSettings();
config.InfillPercent = 0;
config.NumberOfPerimeters = 1;
config.FirstLayerExtrusionWidth = .2;
config.LayerThickness = .2;
config.NumberOfBottomLayers = 0;
config.NumberOfTopLayers = 0;
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(gCodeFile);
processor.LoadStlFile(stlFile);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] gcodeLines = TestUtilities.LoadGCodeFile(gCodeFile);
int layerCount = TestUtilities.CountLayers(gcodeLines);
Assert.IsTrue(layerCount == expectedLayerCount);
MovementInfo movement = new MovementInfo();
for (int i = 0; i < layerCount - 5; i++)
{
string[] layerInfo = TestUtilities.GetGCodeForLayer(gcodeLines, i);
if (i > 0)
{
Polygons layerPolygons = TestUtilities.GetExtrusionPolygons(layerInfo, ref movement);
Assert.IsTrue(layerPolygons.Count == 2);
if (checkRadius)
{
Assert.IsTrue(layerPolygons[0].Count > 10);
Assert.IsTrue(layerPolygons[1].Count > 10);
if (false)
{
foreach (var polygon in layerPolygons)
{
double radiusForPolygon = polygon[0].LengthMm();
foreach (var point in polygon)
{
Assert.AreEqual(radiusForPolygon, point.LengthMm(), 15);
}
}
}
}
}
else
{
TestUtilities.GetExtrusionPolygons(layerInfo, ref movement);
}
}
}
public void CanSetExtruderForSupportMaterial()
{
string baseFileName = "Support Material 2 Bars";
string stlToLoad = TestUtilities.GetStlPath(baseFileName + ".stl");
string supportToLoad = TestUtilities.GetStlPath("2BarsSupport.stl");
// check that default is support printed with extruder 0
{
string gcodeToCreate = TestUtilities.GetTempGCodePath(baseFileName + "_0_.gcode");
ConfigSettings config = new ConfigSettings();
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(gcodeToCreate);
processor.LoadStlFile(stlToLoad);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] gcodeContents = TestUtilities.LoadGCodeFile(gcodeToCreate);
Assert.IsFalse(TestUtilities.UsesExtruder(gcodeContents, 1));
Assert.IsFalse(TestUtilities.UsesExtruder(gcodeContents, 2));
}
// check that support is printed with extruder 0
{
string gcodeToCreate = TestUtilities.GetTempGCodePath(baseFileName + "_1b_.gcode");
ConfigSettings config = new ConfigSettings();
config.ExtruderCount = 1;
config.SupportExtruder = 1; // from a 0 based index
// this is a hack, but it is the signaling mechanism for support
config.BooleanOperations = "S";
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(gcodeToCreate);
processor.LoadStlFile(stlToLoad);
processor.LoadStlFile(supportToLoad);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] gcodeContents = TestUtilities.LoadGCodeFile(gcodeToCreate);
Assert.IsFalse(TestUtilities.UsesExtruder(gcodeContents, 1));
Assert.IsFalse(TestUtilities.UsesExtruder(gcodeContents, 2));
}
// check that support is printed with extruder 1
{
string gcodeToCreate = TestUtilities.GetTempGCodePath(baseFileName + "_1b_.gcode");
ConfigSettings config = new ConfigSettings();
config.SupportExtruder = 1;
config.ExtruderCount = 2;
// this is a hack, but it is the signaling mechanism for support
config.BooleanOperations = "S";
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(gcodeToCreate);
processor.LoadStlFile(stlToLoad);
// we have to have a mesh for every extruder
processor.LoadStlFile(stlToLoad);
processor.LoadStlFile(supportToLoad);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] gcodeContents = TestUtilities.LoadGCodeFile(gcodeToCreate);
Assert.IsTrue(TestUtilities.UsesExtruder(gcodeContents, 1));
Assert.IsFalse(TestUtilities.UsesExtruder(gcodeContents, 2));
}
// check that support interface is printed with extruder 0
{
string gcodeToCreate = TestUtilities.GetTempGCodePath(baseFileName + "_1i_.gcode");
ConfigSettings config = new ConfigSettings();
config.ExtruderCount = 1;
config.SupportInterfaceExtruder = 1;
// this is a hack, but it is the signaling mechanism for support
config.BooleanOperations = "S";
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(gcodeToCreate);
processor.LoadStlFile(stlToLoad);
processor.LoadStlFile(supportToLoad);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] gcodeContents = TestUtilities.LoadGCodeFile(gcodeToCreate);
Assert.IsFalse(TestUtilities.UsesExtruder(gcodeContents, 1));
Assert.IsFalse(TestUtilities.UsesExtruder(gcodeContents, 2));
}
// check that support interface is printed with extruder 1
{
string gcodeToCreate = TestUtilities.GetTempGCodePath(baseFileName + "_1i_.gcode");
ConfigSettings config = new ConfigSettings();
config.ExtruderCount = 2;
config.SupportInterfaceExtruder = 1;
// this is a hack, but it is the signaling mechanism for support
config.BooleanOperations = "S";
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(gcodeToCreate);
processor.LoadStlFile(stlToLoad);
// we have to have a mesh for every extruder
processor.LoadStlFile(stlToLoad);
processor.LoadStlFile(supportToLoad);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] gcodeContents = TestUtilities.LoadGCodeFile(gcodeToCreate);
Assert.IsTrue(TestUtilities.UsesExtruder(gcodeContents, 0));
Assert.IsTrue(TestUtilities.UsesExtruder(gcodeContents, 1));
Assert.IsFalse(TestUtilities.UsesExtruder(gcodeContents, 2));
}
// check that support and interface can be set separately
{
string gcodeToCreate = TestUtilities.GetTempGCodePath(baseFileName + "_1b2i_.gcode");
ConfigSettings config = new ConfigSettings();
config.ExtruderCount = 1;
config.SupportExtruder = 1;
config.SupportInterfaceExtruder = 2;
// this is a hack, but it is the signaling mechanism for support
config.BooleanOperations = "S";
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(gcodeToCreate);
processor.LoadStlFile(stlToLoad);
processor.LoadStlFile(supportToLoad);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] gcodeContents = TestUtilities.LoadGCodeFile(gcodeToCreate);
Assert.IsFalse(TestUtilities.UsesExtruder(gcodeContents, 1));
Assert.IsFalse(TestUtilities.UsesExtruder(gcodeContents, 2));
}
// check that support and interface can be set separately
{
string gcodeToCreate = TestUtilities.GetTempGCodePath(baseFileName + "_1b2i_.gcode");
ConfigSettings config = new ConfigSettings();
config.ExtruderCount = 2;
config.SupportExtruder = 1;
config.SupportInterfaceExtruder = 2;
// this is a hack, but it is the signaling mechanism for support
config.BooleanOperations = "S";
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(gcodeToCreate);
processor.LoadStlFile(stlToLoad);
// we have to have a mesh for every extruder
processor.LoadStlFile(stlToLoad);
processor.LoadStlFile(supportToLoad);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] gcodeContents = TestUtilities.LoadGCodeFile(gcodeToCreate);
Assert.IsTrue(TestUtilities.UsesExtruder(gcodeContents, 1));
Assert.IsFalse(TestUtilities.UsesExtruder(gcodeContents, 2));
}
// check that support and interface can be set separately
{
string gcodeToCreate = TestUtilities.GetTempGCodePath(baseFileName + "_1b2i_.gcode");
ConfigSettings config = new ConfigSettings();
config.ExtruderCount = 3;
config.SupportExtruder = 1;
config.SupportInterfaceExtruder = 2;
// this is a hack, but it is the signaling mechanism for support
config.BooleanOperations = "S";
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(gcodeToCreate);
processor.LoadStlFile(stlToLoad);
// we have to have a mesh for every extruder
processor.LoadStlFile(stlToLoad);
processor.LoadStlFile(stlToLoad);
processor.LoadStlFile(supportToLoad);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] gcodeContents = TestUtilities.LoadGCodeFile(gcodeToCreate);
Assert.IsTrue(TestUtilities.UsesExtruder(gcodeContents, 1));
Assert.IsTrue(TestUtilities.UsesExtruder(gcodeContents, 2));
}
}
public void AllMovesRequiringRetractionDoRetraction(string baseFileName, string settingsIniFile = "")
{
string stlToLoad = TestUtilities.GetStlPath(baseFileName + ".stl");
// check that default is support printed with extruder 0
string gcodeToCreate = TestUtilities.GetTempGCodePath(baseFileName + "_retract_.gcode");
ConfigSettings config = new ConfigSettings();
if (settingsIniFile == "")
{
config.MinimumTravelToCauseRetraction = 2;
config.MinimumExtrusionBeforeRetraction = 0;
config.MergeOverlappingLines = false;
config.FirstLayerExtrusionWidth = .5;
}
else
{
config.ReadSettings(settingsIniFile);
}
// this is what we detect
config.RetractionZHop = 5;
FffProcessor processor = new FffProcessor(config);
processor.SetTargetFile(gcodeToCreate);
processor.LoadStlFile(stlToLoad);
// slice and save it
processor.DoProcessing();
processor.Finalize();
string[] gcodeContents = TestUtilities.LoadGCodeFile(gcodeToCreate);
int layerCount = TestUtilities.CountLayers(gcodeContents);
bool firstPosition = true;
MovementInfo lastMovement = new MovementInfo();
MovementInfo lastExtrusion = new MovementInfo();
bool lastMoveIsExtrusion = true;
for (int layerIndex = 0; layerIndex < layerCount; layerIndex++)
{
string[] layerGCode = TestUtilities.GetGCodeForLayer(gcodeContents, layerIndex);
int movementIndex = 0;
foreach (MovementInfo movement in TestUtilities.Movements(layerGCode, lastMovement))
{
if (!firstPosition)
{
bool isTravel = lastMovement.extrusion == movement.extrusion;
if (isTravel)
{
Vector3 lastPosition = lastMovement.position;
lastPosition.z = 0;
Vector3 currenPosition = movement.position;
currenPosition.z = 0;
double xyLength = (lastPosition - currenPosition).Length;
if (xyLength > config.MinimumTravelToCauseRetraction &&
lastMoveIsExtrusion)
{
Assert.GreaterOrEqual(movement.position.z, lastExtrusion.position.z);
}
lastMoveIsExtrusion = false;
}
else
{
lastMoveIsExtrusion = true;
lastExtrusion = movement;
}
lastMoveIsExtrusion = !isTravel;
}
lastMovement = movement;
firstPosition = false;
movementIndex++;
}
}
// make sure we don't switch extruders
Assert.IsFalse(TestUtilities.UsesExtruder(gcodeContents, 1));
Assert.IsFalse(TestUtilities.UsesExtruder(gcodeContents, 2));
}