public bool needSupportAt(IntPoint pointToCheckIfNeedsSupport, int z)
{
if (pointToCheckIfNeedsSupport.X < 1 ||
pointToCheckIfNeedsSupport.Y < 1 ||
pointToCheckIfNeedsSupport.X >= supportStorage.gridWidth - 1 ||
pointToCheckIfNeedsSupport.Y >= supportStorage.gridHeight - 1 ||
done[pointToCheckIfNeedsSupport.X + pointToCheckIfNeedsSupport.Y * supportStorage.gridWidth])
{
return(false);
}
int gridIndex = (int)(pointToCheckIfNeedsSupport.X + pointToCheckIfNeedsSupport.Y * supportStorage.gridWidth);
if (generateInternalSupport)
{
// We add 2 each time as we are wanting to look at the bottom face (even faces), and the intersections are bottom - top - bottom - top - etc.
for (int zIndex = 0; zIndex < supportStorage.xYGridOfSupportPoints[gridIndex].Count; zIndex += 2)
{
SupportPoint currentBottomSupportPoint = supportStorage.xYGridOfSupportPoints[gridIndex][zIndex];
bool angleNeedsSupport = currentBottomSupportPoint.cosAngle >= cosAngle;
if (angleNeedsSupport)
{
bool zIsBelowBottomSupportPoint = z <= currentBottomSupportPoint.z - interfaceZDistance_um - supportZDistance_um - extraErrorGap;
if (zIndex == 0)
{
if (zIsBelowBottomSupportPoint)
{
return(true);
}
}
else
{
SupportPoint previousTopSupportPoint = supportStorage.xYGridOfSupportPoints[gridIndex][zIndex - 1];
bool zIsAbovePrevSupportPoint = z > previousTopSupportPoint.z + supportZDistance_um;
if (zIsBelowBottomSupportPoint && zIsAbovePrevSupportPoint)
{
return(true);
}
}
}
}
return(false);
}
else // we only ever look up to the first point needing support (the 0th index)
{
if (supportStorage.xYGridOfSupportPoints[gridIndex].Count == 0)
{
// there are no points needing support here
return(false);
}
if (supportStorage.xYGridOfSupportPoints[gridIndex][0].cosAngle < cosAngle)
{
// The angle does not need support
return(false);
}
if (z >= supportStorage.xYGridOfSupportPoints[gridIndex][0].z - interfaceZDistance_um - supportZDistance_um - extraErrorGap)
{
// the spot is above the place we need to support
return(false);
}
}
return(true);
}
public void GenerateSupportGrid(OptimizedModel model, ConfigSettings config)
{
this.generated = false;
if (config.supportEndAngle < 0)
{
return;
}
this.generated = true;
this.gridOffset.X = model.minXYZ_um.x;
this.gridOffset.Y = model.minXYZ_um.y;
this.gridScale = 200;
this.gridWidth = (model.size_um.x / this.gridScale) + 1;
this.gridHeight = (model.size_um.y / this.gridScale) + 1;
int gridSize = this.gridWidth * this.gridHeight;
this.xYGridOfSupportPoints = new List <List <SupportPoint> >(gridSize);
for (int i = 0; i < gridSize; i++)
{
this.xYGridOfSupportPoints.Add(new List <SupportPoint>());
}
this.endAngleDegrees = config.supportEndAngle;
this.generateInternalSupport = config.generateInternalSupport;
this.supportXYDistance_um = config.supportXYDistance_um;
this.supportLayerHeight_um = config.layerThickness_um;
this.supportZGapLayers = config.supportNumberOfLayersToSkipInZ;
this.supportInterfaceLayers = config.supportInterfaceLayers;
// This should really be a ray intersection as later code is going to count on it being an even odd list of bottoms and tops.
// As it is we are finding the hit on the plane but not checking for good intersection with the triangle.
for (int volumeIndex = 0; volumeIndex < model.volumes.Count; volumeIndex++)
{
OptimizedVolume vol = model.volumes[volumeIndex];
for (int faceIndex = 0; faceIndex < vol.facesTriangle.Count; faceIndex++)
{
OptimizedFace faceTriangle = vol.facesTriangle[faceIndex];
Point3 v0 = vol.vertices[faceTriangle.vertexIndex[0]].position;
Point3 v1 = vol.vertices[faceTriangle.vertexIndex[1]].position;
Point3 v2 = vol.vertices[faceTriangle.vertexIndex[2]].position;
// get the angle of this polygon
double angleFromHorizon;
{
FPoint3 v0f = new FPoint3(v0);
FPoint3 v1f = new FPoint3(v1);
FPoint3 v2f = new FPoint3(v2);
FPoint3 normal = (v1f - v0f).Cross(v2f - v0f);
normal.z = Math.Abs(normal.z);
angleFromHorizon = (Math.PI / 2) - FPoint3.CalculateAngle(normal, FPoint3.Up);
}
v0.x = (int)((v0.x - this.gridOffset.X) / (double)this.gridScale + .5);
v0.y = (int)((v0.y - this.gridOffset.Y) / (double)this.gridScale + .5);
v1.x = (int)((v1.x - this.gridOffset.X) / (double)this.gridScale + .5);
v1.y = (int)((v1.y - this.gridOffset.Y) / (double)this.gridScale + .5);
v2.x = (int)((v2.x - this.gridOffset.X) / (double)this.gridScale + .5);
v2.y = (int)((v2.y - this.gridOffset.Y) / (double)this.gridScale + .5);
if (v0.x > v1.x)
{
swap(ref v0, ref v1);
}
if (v1.x > v2.x)
{
swap(ref v1, ref v2);
}
if (v0.x > v1.x)
{
swap(ref v0, ref v1);
}
for (long x = v0.x; x < v1.x; x++)
{
long y0 = (long)(v0.y + (v1.y - v0.y) * (x - v0.x) / (double)(v1.x - v0.x) + .5);
long y1 = (long)(v0.y + (v2.y - v0.y) * (x - v0.x) / (double)(v2.x - v0.x) + .5);
long z0 = (long)(v0.z + (v1.z - v0.z) * (x - v0.x) / (double)(v1.x - v0.x) + .5);
long z1 = (long)(v0.z + (v2.z - v0.z) * (x - v0.x) / (double)(v2.x - v0.x) + .5);
if (y0 > y1)
{
swap(ref y0, ref y1);
swap(ref z0, ref z1);
}
for (long y = y0; y < y1; y++)
{
SupportPoint newSupportPoint = new SupportPoint((int)(z0 + (z1 - z0) * (y - y0) / (double)(y1 - y0) + .5), angleFromHorizon);
this.xYGridOfSupportPoints[(int)(x + y * this.gridWidth)].Add(newSupportPoint);
}
}
for (int x = v1.x; x < v2.x; x++)
{
long y0 = (long)(v1.y + (v2.y - v1.y) * (x - v1.x) / (double)(v2.x - v1.x) + .5);
long y1 = (long)(v0.y + (v2.y - v0.y) * (x - v0.x) / (double)(v2.x - v0.x) + .5);
long z0 = (long)(v1.z + (v2.z - v1.z) * (x - v1.x) / (double)(v2.x - v1.x) + .5);
long z1 = (long)(v0.z + (v2.z - v0.z) * (x - v0.x) / (double)(v2.x - v0.x) + .5);
if (y0 > y1)
{
swap(ref y0, ref y1);
swap(ref z0, ref z1);
}
for (int y = (int)y0; y < y1; y++)
{
this.xYGridOfSupportPoints[x + y * this.gridWidth].Add(new SupportPoint((int)(z0 + (z1 - z0) * (double)(y - y0) / (double)(y1 - y0) + .5), angleFromHorizon));
}
}
}
}
for (int x = 0; x < this.gridWidth; x++)
{
for (int y = 0; y < this.gridHeight; y++)
{
int gridIndex = x + y * this.gridWidth;
List <SupportPoint> currentList = this.xYGridOfSupportPoints[gridIndex];
currentList.Sort(SortSupportsOnZ);
if (currentList.Count > 1)
{
// now remove duplicates (try to make it a better bottom and top list)
for (int i = currentList.Count - 1; i >= 1; i--)
{
if (currentList[i].z == currentList[i - 1].z)
{
currentList.RemoveAt(i);
}
}
}
}
}
this.gridOffset.X += this.gridScale / 2;
this.gridOffset.Y += this.gridScale / 2;
}
private static int SortSupportsOnZ(SupportPoint one, SupportPoint two)
{
return one.z.CompareTo(two.z);
}
private static int SortSupportsOnZ(SupportPoint one, SupportPoint two)
{
return(one.z.CompareTo(two.z));
}
public void GenerateSupportGrid(OptimizedModel model, ConfigSettings config)
{
this.generated = false;
if (config.supportEndAngle < 0)
{
return;
}
this.generated = true;
this.gridOffset.X = model.minXYZ_um.x;
this.gridOffset.Y = model.minXYZ_um.y;
this.gridScale = 200;
this.gridWidth = (model.size_um.x / this.gridScale) + 1;
this.gridHeight = (model.size_um.y / this.gridScale) + 1;
int gridSize = this.gridWidth * this.gridHeight;
this.xYGridOfSupportPoints = new List<List<SupportPoint>>(gridSize);
for (int i = 0; i < gridSize; i++)
{
this.xYGridOfSupportPoints.Add(new List<SupportPoint>());
}
this.endAngleDegrees = config.supportEndAngle;
this.generateInternalSupport = config.generateInternalSupport;
this.supportXYDistance_um = config.supportXYDistance_um;
this.supportLayerHeight_um = config.layerThickness_um;
this.supportZGapLayers = config.supportNumberOfLayersToSkipInZ;
this.supportInterfaceLayers = config.supportInterfaceLayers;
// This should really be a ray intersection as later code is going to count on it being an even odd list of bottoms and tops.
// As it is we are finding the hit on the plane but not checking for good intersection with the triangle.
for (int volumeIndex = 0; volumeIndex < model.volumes.Count; volumeIndex++)
{
OptimizedVolume vol = model.volumes[volumeIndex];
for (int faceIndex = 0; faceIndex < vol.facesTriangle.Count; faceIndex++)
{
OptimizedFace faceTriangle = vol.facesTriangle[faceIndex];
Point3 v0 = vol.vertices[faceTriangle.vertexIndex[0]].position;
Point3 v1 = vol.vertices[faceTriangle.vertexIndex[1]].position;
Point3 v2 = vol.vertices[faceTriangle.vertexIndex[2]].position;
// get the angle of this polygon
double angleFromHorizon;
{
FPoint3 v0f = new FPoint3(v0);
FPoint3 v1f = new FPoint3(v1);
FPoint3 v2f = new FPoint3(v2);
FPoint3 normal = (v1f - v0f).Cross(v2f - v0f);
normal.z = Math.Abs(normal.z);
angleFromHorizon = (Math.PI / 2) - FPoint3.CalculateAngle(normal, FPoint3.Up);
}
v0.x = (int)((v0.x - this.gridOffset.X) / (double)this.gridScale + .5);
v0.y = (int)((v0.y - this.gridOffset.Y) / (double)this.gridScale + .5);
v1.x = (int)((v1.x - this.gridOffset.X) / (double)this.gridScale + .5);
v1.y = (int)((v1.y - this.gridOffset.Y) / (double)this.gridScale + .5);
v2.x = (int)((v2.x - this.gridOffset.X) / (double)this.gridScale + .5);
v2.y = (int)((v2.y - this.gridOffset.Y) / (double)this.gridScale + .5);
if (v0.x > v1.x) swap(ref v0, ref v1);
if (v1.x > v2.x) swap(ref v1, ref v2);
if (v0.x > v1.x) swap(ref v0, ref v1);
for (long x = v0.x; x < v1.x; x++)
{
long y0 = (long)(v0.y + (v1.y - v0.y) * (x - v0.x) / (double)(v1.x - v0.x) + .5);
long y1 = (long)(v0.y + (v2.y - v0.y) * (x - v0.x) / (double)(v2.x - v0.x) + .5);
long z0 = (long)(v0.z + (v1.z - v0.z) * (x - v0.x) / (double)(v1.x - v0.x) + .5);
long z1 = (long)(v0.z + (v2.z - v0.z) * (x - v0.x) / (double)(v2.x - v0.x) + .5);
if (y0 > y1)
{
swap(ref y0, ref y1);
swap(ref z0, ref z1);
}
for (long y = y0; y < y1; y++)
{
SupportPoint newSupportPoint = new SupportPoint((int)(z0 + (z1 - z0) * (y - y0) / (double)(y1 - y0) + .5), angleFromHorizon);
this.xYGridOfSupportPoints[(int)(x + y * this.gridWidth)].Add(newSupportPoint);
}
}
for (int x = v1.x; x < v2.x; x++)
{
long y0 = (long)(v1.y + (v2.y - v1.y) * (x - v1.x) / (double)(v2.x - v1.x) + .5);
long y1 = (long)(v0.y + (v2.y - v0.y) * (x - v0.x) / (double)(v2.x - v0.x) + .5);
long z0 = (long)(v1.z + (v2.z - v1.z) * (x - v1.x) / (double)(v2.x - v1.x) + .5);
long z1 = (long)(v0.z + (v2.z - v0.z) * (x - v0.x) / (double)(v2.x - v0.x) + .5);
if (y0 > y1)
{
swap(ref y0, ref y1);
swap(ref z0, ref z1);
}
for (int y = (int)y0; y < y1; y++)
{
this.xYGridOfSupportPoints[x + y * this.gridWidth].Add(new SupportPoint((int)(z0 + (z1 - z0) * (double)(y - y0) / (double)(y1 - y0) + .5), angleFromHorizon));
}
}
}
}
for (int x = 0; x < this.gridWidth; x++)
{
for (int y = 0; y < this.gridHeight; y++)
{
int gridIndex = x + y * this.gridWidth;
List<SupportPoint> currentList = this.xYGridOfSupportPoints[gridIndex];
currentList.Sort(SortSupportsOnZ);
if (currentList.Count > 1)
{
// now remove duplicates (try to make it a better bottom and top list)
for (int i = currentList.Count - 1; i >= 1; i--)
{
if (currentList[i].z == currentList[i - 1].z)
{
currentList.RemoveAt(i);
}
}
}
}
}
this.gridOffset.X += this.gridScale / 2;
this.gridOffset.Y += this.gridScale / 2;
}