/// <summary>
/// This function will immediately return a bitmap slice at the specified Z-Level
/// If lstPoly is not null, a list of vector polylines representing the slice is returned
/// </summary>
/// <param name="zlev"></param>
/// <param name="lstPoly"></param>
/// <returns></returns>
public Bitmap SliceImmediate(float curz, List<PolyLine3d> lstPoly = null)
{
try
{
//first take care of scaling up the output bitmap paramters size, so we can re-sample later
double scaler = 1.5; // specify the scale factor
m_saved.CopyFrom(m_sf.m_config);// save the orginal
if (m_sf.m_config.antialiasing == true)
{
scaler = m_sf.m_config.aaval;
m_sf.m_config.dpmmX *= scaler;
m_sf.m_config.dpmmY *= scaler;
m_sf.m_config.xres = (int)(scaler * m_sf.m_config.xres);
m_sf.m_config.yres = (int)(scaler * m_sf.m_config.yres);
}
SliceBuildConfig sbf = new SliceBuildConfig(m_sf.m_config); // save it
Bitmap bmp = new Bitmap(m_sf.m_config.xres, m_sf.m_config.yres); // create a new bitmap on a per-slice basis
Graphics graph = Graphics.FromImage(bmp);
graph.Clear(UVDLPApp.Instance().m_appconfig.m_backgroundcolor);//clear the image for rendering
//convert all to 2d lines
Bitmap savebm = null;
// check for cancelation
foreach (Object3d obj in UVDLPApp.Instance().Engine3D.m_objects)
{
savebm = bmp; // need to set this here in case it's not rendered
if (curz >= obj.m_min.z && curz <= obj.m_max.z) // only slice from the bottom to the top of the objects
{
List<Polygon> lstply = GetZPolys(obj, curz);//get a list of polygons at this slice z height that potentially intersect
List<PolyLine3d> lstintersections = GetZIntersections(lstply, curz);//iterate through all the polygons and generate x/y line segments at this 3d z level
Slice sl = new Slice();//create a new slice
sl.m_segments = lstintersections;// Set the list of intersections
sl.RenderSlice(m_sf.m_config, ref bmp);
if (lstPoly != null)
{
sl.Optimize();
lstPoly.AddRange(sl.m_opsegs);
}
savebm = bmp;
}
}
if (m_sf.m_config.antialiasing == true) // we're using anti-aliasing here, so resize the image
{
savebm = ResizeImage(bmp, new Size(m_saved.xres, m_saved.yres));
}
if (m_sf.m_config.m_flipX == true)
{
savebm = ReflectX(savebm);
}
if (m_sf.m_config.m_flipY == true)
{
savebm = ReflectY(savebm);
}
//restore the original size
m_sf.m_config.CopyFrom(m_saved);
return savebm;
}
catch (Exception ex)
{
string s = ex.StackTrace;
DebugLogger.Instance().LogError(ex);
return null;
}
}
/// <summary>
/// This will be called when we're exporting
/// </summary>
/// <param name="scenename"></param>
/// <param name="layer"></param>
/// <param name="numslices"></param>
/// <param name="bmp"></param>
/// <param name="lstPoly"></param>
private void LayerSliced(string scenename, int layer, int numslices, Bitmap bmp, List<PolyLine3d> lstintersections)
{
string path;
try
{
// if (m_buildparms.exportimages)
{
// get the model name
String modelname = scenename;
// strip off the file extension
path = SliceFile.GetSliceFilePath(modelname);
String imname = Path.GetFileNameWithoutExtension(modelname) + String.Format("{0:0000}", layer) + ".png";
String imagename = path + UVDLPApp.m_pathsep + imname;
//if (m_sf.m_config.m_exportopt.ToUpper().Contains("ZIP"))
{
// create a memory stream for this to save into
MemoryStream ms = new MemoryStream();
bmp.Save(ms, ImageFormat.Png);
ms.Seek(0, SeekOrigin.Begin); // seek back to beginning
if (!m_cancel) // if we're not in the process of cancelling
{
SceneFile.Instance().AddSlice(UVDLPApp.Instance().SceneFileName,ms, imname);
}
}
if (m_sf.m_config.exportpng)
{
//imagename
bmp.Save(imagename);
}
if (lstintersections != null)
{
StreamWriter sw;
imname = Path.GetFileNameWithoutExtension(modelname) + String.Format("{0:0000}", layer) + ".svg";
imagename = path + UVDLPApp.m_pathsep + imname;
if (m_sf.m_config.exportsvg < 3)
{
Path2D vectorPath = new Path2D(lstintersections);
sw = vectorPath.GenerateSVG(UVDLPApp.Instance().m_printerinfo.m_PlatXSize,
UVDLPApp.Instance().m_printerinfo.m_PlatYSize, m_sf.m_config.exportsvg == 2);
}
else
{
Slice sl = new Slice();
sl.m_segments = lstintersections;
sl.Optimize();
sw = GenerateSVG(sl.m_opsegs, m_sf.m_config.exportsvg == 4);
}
if (!m_cancel)
{
SceneFile.Instance().AddVectorSlice(UVDLPApp.Instance().SceneFileName,(MemoryStream)sw.BaseStream, imname);
}
}
RaiseSliceEvent(eSliceEvent.eLayerSliced, layer, numslices);
}
}
catch (Exception ex)
{
string s = ex.StackTrace;
DebugLogger.Instance().LogError(ex.Message);
}
}
/// <summary>
/// This is the adaptive support generation, it should automatically
/// detect overhangs,
/// The way that it does this is by generating a closed polyline loop for each layer
/// and checking the 2d projection of the current layer with the previous layer
/// </summary>
public void GenerateAdaptive()
{
//iterate through all the layers starting from z=0
// check every polyline in the current layer to make sure it is encased or overlaps polylines in the previous layer
// generate a list of unsupported polylines
// 'check' to see if the polyline can be dropped straight down
// this has to do slicing of the scene
SliceBuildConfig config = UVDLPApp.Instance().m_buildparms;
List <UnsupportedRegions> lstunsup = new List <UnsupportedRegions>();
List <Object3d> lstsupports = new List <Object3d>(); // final list of supports
int numslices = UVDLPApp.Instance().m_slicer.GetNumberOfSlices(config);
float zlev = 0.0f;
Slice curslice = null;
Slice prevslice = null;
int hxres = config.xres / 2;
int hyres = config.yres / 2;
for (int c = 0; c < numslices; c++)
{
if (m_cancel)
{
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eCancel, "Support Generation Cancelled", null);
return;
}
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eProgress, "" + c + "/" + numslices, null);
Slice sl = UVDLPApp.Instance().m_slicer.GetSliceImmediate(zlev);
sl.Optimize();// find loops
zlev += (float)config.ZThick;
prevslice = curslice;
curslice = sl;
Bitmap bm = new Bitmap(config.xres, config.yres);
if (prevslice != null && curslice != null)
{
//render current slice
curslice.RenderSlice(config, ref bm);
//now render the previous slice overtop the current slice in another color
Color savecol = UVDLPApp.Instance().m_appconfig.m_foregroundcolor;
UVDLPApp.Instance().m_appconfig.m_foregroundcolor = Color.HotPink;
//render previous slice over top
prevslice.RenderSlice(config, ref bm);
UVDLPApp.Instance().m_appconfig.m_foregroundcolor = savecol; // restore the color
// create a lock bitmap for faster pixel access
LockBitmap lbm = new LockBitmap(bm);
lbm.LockBits();
// now, iterate through all optimized polylines in current slice
// this approach isn't going to work, we need to iterate through all polyline
//segments in a slice at once, each individual segment needs to know 1 thing
// 1) the optimized segment it came from
foreach (PolyLine3d pln in curslice.m_opsegs)
{
// each polyline region is checked separately
bool plysupported = false;
//split this optimized polyline back into 2-point segments for easier use
List <PolyLine3d> segments = pln.Split();
List <Line2d> lines2d = Get2dLines(config, segments);
// find the x/y min/max
MinMax_XY mm = Slice.CalcMinMax_XY(lines2d);
// iterate from the ymin to the ymax
for (int y = mm.ymin; y < mm.ymax; y++) // this needs to be in scaled value
{
// get a line of lines that intersect this 2d line
List <Line2d> intersecting = Slice.GetIntersecting2dYLines(y, lines2d);
// get the list of point intersections
List <Point2d> points = Slice.GetIntersectingPoints(y, intersecting);
// sort the points in increasing x order
points.Sort();
if (points.Count % 2 == 0) // is even
{
for (int cnt = 0; cnt < points.Count; cnt += 2) // increment by 2
{
Point2d p1 = (Point2d)points[cnt];
Point2d p2 = (Point2d)points[cnt + 1];
Point pnt1 = new Point(); // create some points for drawing
Point pnt2 = new Point();
pnt1.X = (int)(p1.x + config.XOffset + hxres);
pnt1.Y = (int)(p1.y + config.YOffset + hyres);
pnt2.X = (int)(p2.x + config.XOffset + hxres);
pnt2.Y = (int)(p2.y + config.YOffset + hyres);
//iterate from pnt1.X to pnt2.x and check colors
for (int xc = pnt1.X; xc < pnt2.X; xc++)
{
Color checkcol = lbm.GetPixel(xc, pnt1.Y);
// need to check the locked BM here for the right color
// if the pixel color is the hot pink, then this region has some support
// we're going to need to beef this up and probably divide this all into regions on a grid
if (checkcol.R == Color.HotPink.R && checkcol.G == Color.HotPink.G && checkcol.B == Color.HotPink.B)
{
plysupported = true;
}
}
}
}
else // flag error
{
DebugLogger.Instance().LogRecord("Row y=" + y + " odd # of points = " + points.Count + " - Model may have holes");
}
}// for y = startminY to endY
if (plysupported == false)
{
//generate a support, or mark where a support should be...
lstunsup.Add(new UnsupportedRegions(pln));
}
else
{
plysupported = true;
}
} // for each optimized polyline
lbm.UnlockBits(); // unlock the bitmap
} // prev and current slice are not null
} // iterating through all slices
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eCompleted, "Support Generation Completed", lstsupports);
m_generating = false;
}
/// <summary>
/// This will be called when we're exporting
/// </summary>
/// <param name="scenename"></param>
/// <param name="layer"></param>
/// <param name="numslices"></param>
/// <param name="bmp"></param>
/// <param name="lstPoly"></param>
private void LayerSliced(string scenename, int layer, int numslices, Bitmap bmp, List <PolyLine3d> lstintersections, bool outline = false)
{
string path = "";
try
{
// if (m_buildparms.exportimages)
{
// get the model name
String modelname = scenename;
String outlinename = "";
// strip off the file extension
path = SliceFile.GetSliceFilePath(modelname);
if (outline)
{
outlinename = "_outline";
}
String imname = Path.GetFileNameWithoutExtension(modelname) + outlinename + String.Format("{0:0000}", layer) + ".bmp";
String imagename = path + UVDLPApp.m_pathsep + imname;
// create a memory stream for this to save into
bmp.Tag = BuildManager.SLICE_NORMAL; // mark it as normal
MemoryStream ms = new MemoryStream();
bmp.Save(ms, ImageFormat.Bmp);
ms.Seek(0, SeekOrigin.Begin); // seek back to beginning
if (!m_cancel) // if we're not in the process of cancelling
{
SceneFile.Instance().AddSlice(UVDLPApp.Instance().SceneFileName, ms, imname);
}
if (m_sf.m_config.exportpng)
{
//imagename
var img = (Image)bmp;
img.Save(imagename, ImageFormat.Bmp);
//bmp.Save(imagename);
}
if (lstintersections != null)
{
StreamWriter sw;
imname = Path.GetFileNameWithoutExtension(modelname) + String.Format("{0:0000}", layer) + ".svg";
imagename = path + UVDLPApp.m_pathsep + imname;
if (m_sf.m_config.exportsvg < 3)
{
Path2D vectorPath = new Path2D(lstintersections);
sw = vectorPath.GenerateSVG(UVDLPApp.Instance().m_printerinfo.m_PlatXSize,
UVDLPApp.Instance().m_printerinfo.m_PlatYSize, m_sf.m_config.exportsvg == 2);
}
else
{
Slice sl = new Slice();
sl.m_segments = lstintersections;
sl.Optimize();
sw = GenerateSVG(sl.m_opsegs, m_sf.m_config.exportsvg == 4);
}
if (!m_cancel)
{
SceneFile.Instance().AddVectorSlice(UVDLPApp.Instance().SceneFileName, (MemoryStream)sw.BaseStream, imname);
}
}
RaiseSliceEvent(eSliceEvent.eLayerSliced, layer, numslices);
}
}
catch (Exception ex)
{
string s = ex.StackTrace;
DebugLogger.Instance().LogError(ex.Message);
}
}
/// <summary>
/// This is the adaptive support generation, it should automatically
/// detect overhangs and generate supports acordingly
/// </summary>
public void GenerateAdaptive2()
{
// iterate through all the layers starting from z=0
// slice all layers
// split each layer into non overlapping polygons
// check each polygon to see if it is completely overhangs in the air, or partially
// supported by previous layers.
// for complete overhangs always create supports
// for partialy supported polygons, generate supports only if there is no other
// support in the vicinity
try
{
SliceBuildConfig config = UVDLPApp.Instance().m_buildparms;
config.UpdateFrom(UVDLPApp.Instance().m_printerinfo); // make sure we've got the correct display size and PixPerMM values
if (UVDLPApp.Instance().m_slicer.SliceFile == null)
{
SliceFile sf = new SliceFile(config);
sf.m_mode = SliceFile.SFMode.eImmediate;
UVDLPApp.Instance().m_slicer.SliceFile = sf; // wasn't set
}
//create new list for new supports
List <Object3d> lstsupports = new List <Object3d>(); // final list of supports
List <SupportLocation> supLocs = new List <SupportLocation>(); // temporary list of support locations.
int numslices = UVDLPApp.Instance().m_slicer.GetNumberOfSlices(config);
float zlev = (float)(config.ZThick + 0.5);
int hxres = config.xres / 2;
int hyres = config.yres / 2;
int npix = config.xres * config.yres;
int[] lbm = new int[npix]; // current slice
int[] lbmz = new int[npix]; // z buffer
bool[] lbms = new bool[npix]; // support map
int p;
for (p = 0; p < npix; p++)
{
lbmz[p] = 0;
lbms[p] = false;
}
Bitmap bm = new Bitmap(config.xres, config.yres, System.Drawing.Imaging.PixelFormat.Format32bppArgb); // working bitmap
Color savecol = UVDLPApp.Instance().m_appconfig.m_foregroundcolor;
m_supportgap = (int)(m_sc.mingap * config.dpmmX);
m_asp.lbm = lbm;
m_asp.lbms = lbms;
m_asp.lbmz = lbmz;
m_asp.searchmap = new int[npix];
m_asp.xres = config.xres;
m_asp.yres = config.yres;
m_asp.mingap = m_supportgap;
for (int c = 0; c < numslices; c++)
{
//bool layerneedssupport = false;
if (m_cancel)
{
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eCancel, "Support Generation Cancelled", null);
return;
}
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eProgress, "" + c + "/" + numslices, null);
Slice sl = UVDLPApp.Instance().m_slicer.GetSliceImmediate(zlev);
zlev += (float)config.ZThick;
if ((sl == null) || (sl.m_segments == null) || (sl.m_segments.Count == 0))
{
continue;
}
sl.Optimize();// find loops
using (Graphics gfx = Graphics.FromImage(bm))
gfx.Clear(Color.Transparent);
//render current slice
UVDLPApp.Instance().m_appconfig.m_foregroundcolor = Color.FromArgb((0xFF << 24) | c);
sl.RenderSlice(config, ref bm);
BitmapData data = bm.LockBits(new Rectangle(0, 0, bm.Width, bm.Height),
ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
Marshal.Copy(data.Scan0, lbm, 0, lbm.Length);
for (p = 0; p < npix; p++)
{
lbm[p] &= 0xFFFFFF;
}
bm.UnlockBits(data);
if (c > 0)
{
if (m_sc.eSupType == SupportConfig.eAUTOSUPPORTTYPE.eADAPTIVE)
{
ProcessSlice(lbm, lbmz, lbms, config.xres, config.yres, supLocs);
}
else
{
ProcessSlice2(supLocs);
}
}
// add slice to zbuffer bitmap
for (p = 0; p < npix; p++)
{
if (lbm[p] != 0)
{
lbmz[p] = lbm[p];
}
}
}
UVDLPApp.Instance().m_appconfig.m_foregroundcolor = savecol;
int scnt = 0;
foreach (SupportLocation spl in supLocs)
{
float px = (float)(spl.x - hxres) / (float)config.dpmmX;
float py = (float)(spl.y - hyres) / (float)config.dpmmY;
float pz = (float)(spl.ztop) * (float)config.ZThick;
pz += .650f; // wtf?
AddNewSupport(px, py, pz, scnt++, GetSupportParrent(px, py, pz), lstsupports);
}
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eCompleted, "Support Generation Completed", lstsupports);
m_generating = false;
}
catch (Exception ex)
{
DebugLogger.Instance().LogError(ex);
}
}
/// <summary>
/// NOT CURRENTLY USED
/// This is the adaptive support generation, it should automatically
/// detect overhangs,
/// The way that it does this is by generating a closed polyline loop for each layer
/// and checking the 2d projection of the current layer with the previous layer
/// </summary>
public void GenerateAdaptive()
{
//iterate through all the layers starting from z=0
// check every polyline in the current layer to make sure it is encased or overlaps polylines in the previous layer
// generate a list of unsupported polylines
// 'check' to see if the polyline can be dropped straight down
// this has to do slicing of the scene
try
{
SliceBuildConfig config = UVDLPApp.Instance().m_buildparms;
config.UpdateFrom(UVDLPApp.Instance().m_printerinfo); // make sure we've got the correct display size and PixPerMM values
if (UVDLPApp.Instance().m_slicer.SliceFile == null)
{
SliceFile sf = new SliceFile(config);
sf.m_mode = SliceFile.SFMode.eImmediate;
UVDLPApp.Instance().m_slicer.SliceFile = sf; // wasn't set
}
//create new list for each layer to hold unsupported regions
List <UnsupportedRegions> lstunsup = new List <UnsupportedRegions>();
List <Object3d> lstsupports = new List <Object3d>(); // final list of supports
int numslices = UVDLPApp.Instance().m_slicer.GetNumberOfSlices(config);
float zlev = (float)(config.ZThick / 2.0);
Slice curslice = null;
Slice prevslice = null;
int hxres = config.xres / 2;
int hyres = config.yres / 2;
for (int c = 0; c < numslices; c++)
{
//bool layerneedssupport = false;
if (m_cancel)
{
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eCancel, "Support Generation Cancelled", null);
return;
}
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eProgress, "" + c + "/" + numslices, null);
Slice sl = UVDLPApp.Instance().m_slicer.GetSliceImmediate(zlev);
zlev += (float)config.ZThick;
if (sl == null)
{
continue;
}
if (sl.m_segments == null)
{
continue;
}
if (sl.m_segments.Count == 0)
{
continue;
}
sl.Optimize();// find loops
//sl.DetermineInteriorExterior(config); // mark the interior/exterior loops
prevslice = curslice;
curslice = sl;
Bitmap bm = new Bitmap(config.xres, config.yres);
using (Graphics gfx = Graphics.FromImage(bm))
using (SolidBrush brush = new SolidBrush(Color.Black))
{
gfx.FillRectangle(brush, 0, 0, bm.Width, bm.Height);
}
if (prevslice != null && curslice != null)
{
//render current slice
curslice.RenderSlice(config, ref bm);
//now render the previous slice overtop the current slice in another color
Color savecol = UVDLPApp.Instance().m_appconfig.m_foregroundcolor;
UVDLPApp.Instance().m_appconfig.m_foregroundcolor = Color.HotPink;
//render previous slice over top
prevslice.RenderSlice(config, ref bm);
UVDLPApp.Instance().m_appconfig.m_foregroundcolor = savecol; // restore the color
// create a lock bitmap for faster pixel access
LockBitmap lbm = new LockBitmap(bm);
lbm.LockBits();
// now, iterate through all optimized polylines in current slice
// this approach isn't going to work, we need to iterate through all polyline
//segments in a slice at once, each individual segment needs to know 1 thing
// 1) the optimized segment it came from
//iterate through all optimized polygon segments
Dictionary <PolyLine3d, bool> supportmap = new Dictionary <PolyLine3d, bool>();
foreach (PolyLine3d pln in curslice.m_opsegs)
{
bool plysupported = false;
List <PolyLine3d> allsegments = new List <PolyLine3d>();
List <PolyLine3d> segments = pln.Split(); // split them, retaining the parent
allsegments.AddRange(segments);
//add all optimized polyline segments into the supported map
supportmap.Add(pln, true);
//split this optimized polyline back into 2-point segments for easier use
List <Line2d> lines2d = Get2dLines(config, allsegments);
if (lines2d.Count == 0)
{
continue;
}
// find the x/y min/max
MinMax_XY mm = Slice.CalcMinMax_XY(lines2d);
// iterate from the ymin to the ymax
for (int y = mm.ymin; y < mm.ymax; y++) // this needs to be in scaled value
{
// get a line of lines that intersect this 2d line
List <Line2d> intersecting = Slice.GetIntersecting2dYLines(y, lines2d);
// get the list of point intersections
List <Point2d> points = Slice.GetIntersectingPoints(y, intersecting);
// sort the points in increasing x order
points.Sort();
if (points.Count % 2 == 0) // is even
{
for (int cnt = 0; cnt < points.Count; cnt += 2) // increment by 2
{
Point2d p1 = (Point2d)points[cnt];
Point2d p2 = (Point2d)points[cnt + 1];
Point pnt1 = new Point(); // create some points for drawing
Point pnt2 = new Point();
pnt1.X = (int)(p1.x + config.XOffset + hxres);
pnt1.Y = (int)(p1.y + config.YOffset + hyres);
pnt2.X = (int)(p2.x + config.XOffset + hxres);
pnt2.Y = (int)(p2.y + config.YOffset + hyres);
//iterate from pnt1.X to pnt2.x and check colors
for (int xc = pnt1.X; xc < pnt2.X; xc++)
{
if (xc >= lbm.Width || xc <= 0)
{
continue;
}
if (pnt1.Y >= lbm.Height || pnt1.Y <= 0)
{
continue;
}
try
{
Color checkcol = lbm.GetPixel(xc, pnt1.Y);
// need to check the locked BM here for the right color
// if the pixel color is the hot pink, then this region has some support
// we're going to need to beef this up and probably divide this all into regions on a grid
if (checkcol.R == Color.HotPink.R && checkcol.G == Color.HotPink.G && checkcol.B == Color.HotPink.B)
{
plysupported = true;
}
}
catch (Exception ex)
{
DebugLogger.Instance().LogError(ex);
}
}
}
}
else // flag error
{
DebugLogger.Instance().LogRecord("Row y=" + y + " odd # of points = " + points.Count + " - Model may have holes");
}
}// for y = startminY to endY
if (plysupported == false)
{
// layerneedssupport = true;
supportmap[pln] = false;
lstunsup.Add(new UnsupportedRegions(pln));
}
} // for each optimized polyline
lbm.UnlockBits(); // unlock the bitmap
} // prev and current slice are not null
//if (layerneedssupport)
// SaveBM(bm, c); // uncomment this to see the layers that need support
} // iterating through all slices
// iterate through all unsupported regions
// calculate the center
// add a support from that region going down to the ground (or closest intersected)
int scnt = 0;
foreach (UnsupportedRegions region in lstunsup)
{
Support s = new Support();
Point3d center = region.Center(); // taking the center of the region is a naive approach
float lz = center.z;
lz += .65f; // why is this offset needed?
AddNewSupport(center.x, center.y, center.z, scnt++, null, lstsupports);
}
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eCompleted, "Support Generation Completed", lstsupports);
m_generating = false;
}
catch (Exception ex)
{
DebugLogger.Instance().LogError(ex);
}
}