private void TransformPoints(Glyph fromGlyph, VectorTransform transform)
{
if (HoleSorted && !fromGlyph.WasHoleSorted)
{
// We must sort all components:
fromGlyph.HoleSort();
}
VectorPoint current = fromGlyph.FirstPathNode;
while (current != null)
{
// Create a new one:
VectorPoint newPoint = current.Copy();
// Apply transformed pos:
newPoint.Transform(transform);
// Add it:
AddPathNode(newPoint);
current = current.Next;
if (current == null)
{
// Last one - ensure it's closed:
newPoint.IsClose = true;
}
}
}
public static List <string> WriteSTLOfShells(TelescopeSegment segment, Vector3 minOffset)
{
List <string> stlNames = new List <string>();
foreach (TelescopeShell shell in segment.shells)
{
string stl = "stls/" + shell.name + ".stl";
using (StreamWriter file = new StreamWriter("scad/" + stl))
{
VectorTransform ShellTransform = (v =>
shell.transform.rotation * v + shell.transform.position - minOffset);
List <string> shellLines = FacetsOfMesh(shell.mesh, ShellTransform);
file.WriteLine("solid " + shell.name);
foreach (string line in shellLines)
{
file.WriteLine(line);
}
file.WriteLine("endsolid");
}
stlNames.Add(stl);
}
return(stlNames);
}
public static List <string> STLOfMesh(Mesh m)
{
Bounds b = m.bounds;
VectorTransform f = (v => v - b.min);
return(STLOfMesh(m, f));
}
public static List <string> STLOfMesh(Mesh m, VectorTransform f)
{
List <string> facets = FacetsOfMesh(m, f);
facets.Insert(0, "solid " + m.name);
facets.Add("endsolid");
return(facets);
}
public void AddComponent(VectorTransform component)
{
if (FirstComponent == null)
{
// Set as only one:
FirstComponent = LastComponent = component;
}
else
{
// Push to the end:
LastComponent = LastComponent.Next = component;
}
}
private void UpdateVectorTransform()
{
VectorTransform.Series.Clear();
VectorTransform.Series.Add(XOneFormSeries());
VectorTransform.Series.Add(YOneFormSeries());
foreach (var line in _model.VectorCoordinates())
{
VectorTransform.Series.Add(line);
}
VectorTransform.Series.Add(VectorSeries(true));
VectorTransform.Series.Add(XAxis());
VectorTransform.Series.Add(YAxis());
VectorTransform.InvalidatePlot(true);
}
static List <string> FacetsOfMesh(Mesh m, VectorTransform f)
{
List <string> lines = new List <string>();
int numTriangles = m.triangles.Length / 3;
for (int i = 0; i < numTriangles; i++)
{
// Unity has clockwise winding order; STL takes CCW, so reverse
int i1 = m.triangles[3 * i + 0];
int i2 = m.triangles[3 * i + 1];
int i3 = m.triangles[3 * i + 2];
Vector3 p1 = f(m.vertices[i1]);
Vector3 p2 = f(m.vertices[i2]);
Vector3 p3 = f(m.vertices[i3]);
CheckPositiveOctant(p1);
CheckPositiveOctant(p2);
CheckPositiveOctant(p3);
Vector3 e1 = p2 - p1;
Vector3 e2 = p3 - p1;
Vector3 crossNormal = Vector3.Cross(e2.normalized, e1.normalized);
/*
* Vector3 vertAverageNormal = m.normals[i1] + m.normals[i2] + m.normals[i3];
* vertAverageNormal.Normalize();
* float dot = Vector3.Dot(crossNormal, vertAverageNormal);
* if (dot < 0)
* {
* throw new System.Exception("cross normal doesn't match vertex normals: " + dot);
* }
*/
StringOfVector sov = (v => v.x + " " + v.y + " " + v.z);
lines.Add(" facet normal " + sov(-crossNormal));
lines.Add(" outer loop");
lines.Add(" vertex " + sov(p1));
lines.Add(" vertex " + sov(p2));
lines.Add(" vertex " + sov(p3));
lines.Add(" endloop");
lines.Add(" endfacet");
}
return(lines);
}
public override void LoadFully(Glyph[] glyphs)
{
VectorTransform current = FirstComponent;
while (current != null)
{
Glyph componentGlyph = glyphs[current.Index];
if (componentGlyph != null)
{
// Transform the points of the component glyph into this one:
TransformPoints(componentGlyph, current);
}
current = current.Next;
}
}
public override void LoadNow()
{
// Clear:
FirstPathNode = null;
LatestPathNode = null;
PathNodeCount = 0;
Glyph[] glyphs = Font.ParserGlyphs;
VectorTransform current = FirstComponent;
while (current != null)
{
Glyph componentGlyph = glyphs[current.Index];
if (componentGlyph != null)
{
if (componentGlyph.RequiresLoad)
{
// Load it:
componentGlyph.LoadNow();
}
}
if (componentGlyph.WasHoleSorted)
{
// Sort all of them.
HoleSorted = true;
}
current = current.Next;
}
// Load fully:
LoadFully(glyphs);
// Reduce the amount of unloaded glyphs:
Font.UnloadedGlyphs--;
if (Font.UnloadedGlyphs <= 0)
{
// Let the font know that every glyph is now loaded:
Font.AllGlyphsLoaded();
}
}
private void TransformPoints(Glyph fromGlyph, VectorTransform transform)
{
VectorPoint current = fromGlyph.FirstPathNode;
while (current != null)
{
// Create a new one:
VectorPoint newPoint = current.Copy();
// Apply transformed pos:
newPoint.Transform(transform);
// Add it:
AddPathNode(newPoint);
current = current.Next;
}
}
public static void WriteSTLOfSegment(TelescopeSegment segment, Vector3 minOffset, string filename)
{
Debug.Log("Write STL to " + filename);
List <string> allLines = new List <string>();
allLines.Add("solid " + segment.name);
foreach (TelescopeShell shell in segment.shells)
{
VectorTransform ShellTransform = (v =>
shell.transform.rotation * v + shell.transform.position - minOffset);
List <string> shellLines = FacetsOfMesh(shell.mesh, ShellTransform);
allLines.AddRange(shellLines);
}
allLines.Add("endsolid");
File.WriteAllLines(filename, allLines.ToArray());
}
public static Glyph ParseGlyph(FontParser parser, FontFace font, float range)
{
// How many contours has it got?
int contourCount = parser.ReadInt16();
// Skip bounds - we don't trust these too much, so we'll figure them out ourselves:
parser.Position += 8;
if (contourCount > 0)
{
// This glyph is not a composite.
// Create the glyph:
Glyph glyph = new Glyph(font);
if (Fonts.Preload)
{
LoadGlyph(glyph, contourCount, parser, range);
}
else
{
// Increase unloaded count:
font.UnloadedGlyphs++;
// Add position info:
glyph.AddPathNode(new LoadMetaPoint(parser.Position, contourCount));
}
return(glyph);
}
else if (contourCount == 0)
{
// Empty glyph e.g. space. Create the glyph:
Glyph glyph = new Glyph(font);
return(glyph);
}
CompositeGlyph compGlyph = new CompositeGlyph(font);
bool moreComponents = true;
while (moreComponents)
{
ushort cFlags = parser.ReadUInt16();
ushort glyphIndex = parser.ReadUInt16();
VectorTransform component = new VectorTransform(glyphIndex);
if ((cFlags & 1) > 0)
{
// The arguments are words
component.Dx = (float)parser.ReadInt16() / range;
component.Dy = (float)parser.ReadInt16() / range;
}
else
{
// The arguments are bytes
component.Dx = (float)parser.ReadByte() / range;
component.Dy = (float)parser.ReadByte() / range;
}
if ((cFlags & 8) > 0)
{
// We have one scale
component.XScale = component.YScale = parser.ReadF2Dot14();
}
else if ((cFlags & 64) > 0)
{
// We have an X / Y scale
component.XScale = parser.ReadF2Dot14();
component.YScale = parser.ReadF2Dot14();
}
else if ((cFlags & 128) > 0)
{
// We have a 2x2 transformation
component.XScale = parser.ReadF2Dot14();
component.Scale01 = parser.ReadF2Dot14();
component.Scale10 = parser.ReadF2Dot14();
component.YScale = parser.ReadF2Dot14();
}
// Push the component to the end:
compGlyph.AddComponent(component);
moreComponents = ((cFlags & 32) == 32);
}
return(compGlyph);
}
public static void WriteSTLOfMesh(Mesh m, string s, VectorTransform f)
{
List <string> lines = STLOfMesh(m, f);
File.WriteAllLines(s, lines.ToArray());
}
