public List<Object3d> GenerateSupportObjects()
{
// iterate over the platform size by indicated mm step; // projected resolution in x,y
// generate a 3d x/y point on z=0,
// generate another on the z=zmax
// use this ray to intersect the scene
// foreach intersection point, generate a support
// we gott make sure supports don't collide
// I also have to take into account the
// interface between the support and the model
List<Object3d> lstsupports = new List<Object3d>();
float ZVal = (float)UVDLPApp.Instance().m_printerinfo.m_PlatZSize;
m_model.Update();
float MinX = m_model.m_min.x;
float MaxX = m_model.m_max.x;
float MinY = m_model.m_min.y;
float MaxY = m_model.m_max.y;
// bool intersected = false;
int scnt = 0; // support count
// iterate from -HX to HX step xtep;
double dts = (MaxX - MinX) / m_sc.xspace;
int its = (int)dts;
int curstep = 0;
for (float x = (float)(MinX + (m_sc.xspace / 2.0f)); x < MaxX; x += (float)m_sc.xspace)
{
// say we're doing stuff
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eProgress, "" + curstep + "/" + its, null);
curstep++;
for (float y = (float)(MinY + (m_sc.yspace / 2)); y < MaxY; y += (float)m_sc.yspace)
{
Point3d origin;
origin = new Point3d(); // bottom point
origin.Set(x, y, 0.0f);
//intersected = false; // reset the intersected flag to be false
Vector3d up = new Vector3d(); // the up vector
up.x = 0.0f;
up.y = 0.0f;
up.z = 1.0f;
List<ISectData> lstISects = RTUtils.IntersectObjects(up, origin, UVDLPApp.Instance().Engine3D.m_objects, false);
//check for cancelling
if (m_cancel)
{
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eCancel, "Support Generation Cancelled", null);
return lstsupports;
}
foreach (ISectData htd in lstISects)
{
if (htd.obj.tag != Object3d.OBJ_SUPPORT) // if this is not another support or the ground
{
if (htd.obj.tag != Object3d.OBJ_GROUND) // if it's not the ground
{
if (m_sc.m_onlydownward && htd.poly.tag != Polygon.TAG_MARKDOWN)
break; // not a downward facing and we're only doing downward
// this should be the closest intersected
Support s = new Support();
float lz = (float)htd.intersect.z;
s.Create((float)m_sc.fbrad, (float)m_sc.ftrad, (float)m_sc.hbrad, (float)m_sc.htrad, lz * .2f, lz * .6f, lz * .2f, 11);
s.Translate((float)x, (float)y, 0);
s.Name = "Support " + scnt;
s.SetColor(Color.Yellow);
scnt++;
lstsupports.Add(s);
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eSupportGenerated, s.Name, s);
break; // only need to make one support
}
}
}
}
}
// return objects;
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eCompleted, "Support Generation Completed", lstsupports);
m_generating = false;
return lstsupports;
}
public bool Load(string scenename)
{
try
{
ZipFile zip = ZipFile.Read(scenename);
string xmlname = "manifest.xml";
ZipEntry manifestentry = zip[xmlname];
//create new manifest xml doc
XmlHelper manifest = new XmlHelper();
//get memory stream
MemoryStream manistream = new MemoryStream();
//extract the stream
manifestentry.Extract(manistream);
//read from stream
manistream.Seek(0, SeekOrigin.Begin); // rewind the stream for reading
manifest.LoadFromStream(manistream, "manifest");
//examine manifest
//find the node with models
XmlNode topnode = manifest.m_toplevel;
XmlNode models = manifest.FindSection(topnode, "Models");
List<XmlNode> modelnodes = manifest.FindAllChildElement(models, "model");
foreach (XmlNode nd in modelnodes)
{
string name = manifest.GetString(nd, "name", "noname");
string modstlname = name + ".stl";
int tag = manifest.GetInt(nd, "tag", 0);
ZipEntry modelentry = zip[modstlname]; // the model name will have the _XXXX on the end with the stl extension
MemoryStream modstr = new MemoryStream();
modelentry.Extract(modstr);
//rewind to beginning
modstr.Seek(0, SeekOrigin.Begin);
//fix the name
name = name.Substring(0, name.Length - 5);// get rid of the _XXXX at the end
if (tag == Object3d.OBJ_SUPPORT)
{
Support s = new Support();
//load the model
s.LoadSTL_Binary(modstr, name);
//add to the 3d engine
UVDLPApp.Instance().m_engine3d.AddObject(s);
//set the tag
s.tag = tag;
string parent = manifest.GetString(nd, "parent", "noname");
s.SetColor(System.Drawing.Color.Yellow);
//find and set the parent
Object3d tmp = UVDLPApp.Instance().m_engine3d.Find(parent);
if (tmp != null)
{
tmp.AddSupport(s);
}
}
else
{
//load as normal object
Object3d obj = new Object3d();
//load the model
obj.LoadSTL_Binary((MemoryStream)modstr, name);
//add to the 3d engine
UVDLPApp.Instance().m_engine3d.AddObject(obj);
//set the tag
obj.tag = tag;
}
}
return true;
}
catch (Exception ex)
{
DebugLogger.Instance().LogError(ex);
return false;
}
}
Support AddNewSupport(float x, float y, float lz, Object3d parent)
{
Support s = new Support();
Configs.SupportConfig sc = UVDLPApp.Instance().m_supportconfig;
//s.Create(sc,parent, (float)sc.fbrad, (float)sc.ftrad, (float)sc.hbrad, (float)sc.htrad, lz * .2f, lz * .6f, lz * .2f, 11);
s.Create(sc, parent, lz * .2f, lz * .6f, lz * .2f);
s.Translate(x, y, 0);
s.SetColor(Color.Yellow);
if (parent != null)
parent.AddSupport(s);
UVDLPApp.Instance().m_engine3d.AddObject(s);
UVDLPApp.Instance().SelectedObject = s;
//RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eSupportGenerated, s.Name, s);
UVDLPApp.Instance().RaiseAppEvent(eAppEvent.eModelAdded, "");
return s;
}
void AddNewSupport(float x, float y, float lz, int scnt, Object3d parent, List<Object3d> lstsupports)
{
Support s = new Support();
s.Create(parent, (float)m_sc.fbrad, (float)m_sc.ftrad, (float)m_sc.hbrad, (float)m_sc.htrad, lz * .2f, lz * .6f, lz * .2f, 11);
s.Translate(x, y, 0);
s.Name = "Support " + scnt;
s.SetColor(Color.Yellow);
lstsupports.Add(s);
if (parent != null)
parent.AddSupport(s);
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eSupportGenerated, s.Name, s);
}
/// <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
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
}
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++)
{
//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();
float lz = center.z;
//region.ply.m_derived.
s.Create(null,(float)m_sc.fbrad, (float)m_sc.ftrad, (float)m_sc.hbrad, (float)m_sc.htrad, lz * .2f, lz * .6f, lz * .2f, 11);
s.Translate((float)center.x, (float)center.y, 0);
s.Name = "Support " + scnt;
s.SetColor(Color.Yellow);
scnt++;
lstsupports.Add(s);
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eSupportGenerated, s.Name, s);
}
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eCompleted, "Support Generation Completed", lstsupports);
m_generating = false;
}
catch (Exception ex)
{
DebugLogger.Instance().LogError(ex);
}
}
Support AddNewSupport(float x, float y, float zbase, float ztop, int scnt, List<Object3d> lstsupports)
{
ISectData isectTop = GetIntersection(x, y, ztop);
if (isectTop == null)
return null;
if (m_sc.m_onlydownward)
{
Vector3d upvec = new Vector3d();
double inc = 1.0 / 90.0;
double angle = -(1 - (m_sc.downwardAngle * inc));
upvec.Set(new Point3d(0, 0, 1));
isectTop.poly.CalcNormal();
double d = isectTop.poly.m_normal.Dot(upvec);
if (m_sc.m_onlydownward && d >= angle) // this makes sure downward works even if polygons are not tagged
return null;
}
Support s = new Support();
s.Create(m_sc, isectTop.obj, ztop * .2f, ztop * .6f, ztop * .2f);
s.Translate(x, y, 0);
s.SelectionType = Support.eSelType.eTip;
s.MoveFromTip(isectTop);
if (zbase > 0)
{
ISectData isectBase = GetIntersection(x, y, zbase);
if (isectBase != null)
{
s.SelectionType = Support.eSelType.eBase;
s.SubType = Support.eSubType.eIntra;
s.PositionBottom(isectBase);
}
}
s.Name = "Support " + scnt;
s.SetColor(Color.Yellow);
lstsupports.Add(s);
if (isectTop.obj != null)
isectTop.obj.AddSupport(s);
RaiseSupportEvent(UV_DLP_3D_Printer.SupportEvent.eSupportGenerated, s.Name, s);
return s;
}
