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more work on new meshing routines...

0.6.0-stable
Dahlia Trimble 2008-08-23 10:28:35 +00:00
parent df14889635
commit 72f74acdbf
1 changed files with 77 additions and 5 deletions
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82
OpenSim/Region/Physics/Meshing/PrimMesher.cs
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@ -95,7 +95,7 @@ namespace OpenSim.Region.Physics.Meshing
// this class should have a table of most commonly computed values
// instead of all the trig function calls
// most common would be for sides = 3, 4, or 24
AngleList( int sides, float startAngle, float stopAngle )
internal void makeAngles( int sides, float startAngle, float stopAngle )
{
angles = new List<Angle>();
double twoPi = System.Math.PI * 2.0;
@ -148,15 +148,87 @@ namespace OpenSim.Region.Physics.Meshing
}
}
internal class PrimProfile
internal class makeProfile
{
internal List<vertex> vertices;
private float twoPi = 2.0f * (float)Math.PI;
internal List<vertex> coords;
internal List<vertex> hollowCoords;
internal List<face> faces;
PrimProfile()
internal int sides = 4;
internal int hollowSides = 7;
internal vertex center = new vertex(0.0f, 0.0f, 0.0f);
makeProfile(int sides, float profileStart, float profileEnd, float hollow, int hollowSides)
{
vertices = new List<vertex>();
coords = new List<vertex>();
hollowCoords = new List<vertex>();
faces = new List<face>();
AngleList angles = new AngleList();
AngleList hollowAngles = new AngleList();
this.sides = sides;
this.hollowSides = hollowSides;
float xScale = 0.5f;
float yScale = 0.5f;
if (sides == 4) // corners of a square are sqrt(2) from center
{
xScale = 0.707f;
yScale = 0.707f;
}
float startAngle = profileStart * twoPi;
float stopAngle = profileEnd * twoPi;
float stepSize = twoPi / this.sides;
angles.makeAngles(this.sides, startAngle, stopAngle);
if (hollow > 0.001f)
{
if (this.sides == this.hollowSides)
hollowAngles = angles;
else
{
hollowAngles = new AngleList();
hollowAngles.makeAngles(this.hollowSides, startAngle, stopAngle);
}
}
else
this.coords.Add(center);
Angle angle;
vertex newVert = new vertex();
if ( hollow > 0.001f && this.hollowSides != this.sides)
{
int numHollowAngles = hollowAngles.angles.Count;
for (int i = 0; i < numHollowAngles; i++)
{
angle = hollowAngles.angles[i];
newVert.X = hollow * xScale * angle.X;
newVert.Y = hollow * yScale * angle.Y;
newVert.Z = 0.0f;
this.hollowCoords.Add(newVert);
}
}
int numAngles = angles.angles.Count;
for (int i = 0; i < numAngles; i++)
{
angle = angles.angles[i];
newVert.X = angle.X * xScale;
newVert.Y = angle.Y * yScale;
newVert.Z = 0.0f;
this.coords.Add(newVert);
}
/*
continue at python source line 174
*/
}
}