public void ApplyAttributesToFreeFormElement(ObjFreeFormElement element)
{
element.MergingGroupNumber = this.MergingGroupNumber;
element.FreeFormType = this.FreeFormType;
element.IsRationalForm = this.IsRationalForm;
element.DegreeU = this.DegreeU;
element.DegreeV = this.DegreeV;
element.BasicMatrixU = this.BasicMatrixU;
element.BasicMatrixV = this.BasicMatrixV;
element.StepU = this.StepU;
element.StepV = this.StepV;
element.CurveApproximationTechnique = this.CurveApproximationTechnique;
element.SurfaceApproximationTechnique = this.SurfaceApproximationTechnique;
}
private static void WriteBodyOfFreeFormElement(StreamWriter stream, ObjFreeFormElement element)
{
bool writeEnd = false;
if (element.ParametersU.Count != 0)
{
writeEnd = true;
stream.Write("parm u");
foreach (float value in element.ParametersU)
{
stream.Write(' ');
stream.Write(value.ToString("F6", CultureInfo.InvariantCulture));
}
stream.WriteLine();
}
if (element.ParametersV.Count != 0)
{
writeEnd = true;
stream.Write("parm v");
foreach (float value in element.ParametersV)
{
stream.Write(' ');
stream.Write(value.ToString("F6", CultureInfo.InvariantCulture));
}
stream.WriteLine();
}
if (element.OuterTrimmingCurves.Count != 0)
{
writeEnd = true;
stream.Write("trim");
foreach (ObjCurveIndex index in element.OuterTrimmingCurves)
{
stream.Write(' ');
stream.Write(index);
}
stream.WriteLine();
}
if (element.InnerTrimmingCurves.Count != 0)
{
writeEnd = true;
stream.Write("hole");
foreach (ObjCurveIndex index in element.InnerTrimmingCurves)
{
stream.Write(' ');
stream.Write(index);
}
stream.WriteLine();
}
if (element.SequenceCurves.Count != 0)
{
writeEnd = true;
stream.Write("scrv");
foreach (ObjCurveIndex index in element.SequenceCurves)
{
stream.Write(' ');
stream.Write(index);
}
stream.WriteLine();
}
if (element.SpecialPoints.Count != 0)
{
writeEnd = true;
stream.Write("sp");
foreach (int point in element.SpecialPoints)
{
stream.Write(' ');
stream.Write(point);
}
stream.WriteLine();
}
if (writeEnd)
{
stream.WriteLine("end");
}
}
public void WriteAttributesOfFreeFormElement(StreamWriter stream, ObjFreeFormElement element)
{
if (element.MergingGroupNumber != this.MergingGroupNumber)
{
this.MergingGroupNumber = element.MergingGroupNumber;
if (this.MergingGroupNumber == 0)
{
stream.WriteLine("mg off");
}
else
{
float res = obj.MergingGroupResolutions[this.MergingGroupNumber];
stream.WriteLine("mg {0} {1}", this.MergingGroupNumber, res.ToString("F6", CultureInfo.InvariantCulture));
}
}
switch (element.FreeFormType)
{
case ObjFreeFormType.BasisMatrix:
stream.Write("cstype");
if (element.IsRationalForm)
{
stream.Write(" rat");
}
stream.WriteLine(" bmatrix");
break;
case ObjFreeFormType.Bezier:
stream.Write("cstype");
if (element.IsRationalForm)
{
stream.Write(" rat");
}
stream.WriteLine(" bezier");
break;
case ObjFreeFormType.BSpline:
stream.Write("cstype");
if (element.IsRationalForm)
{
stream.Write(" rat");
}
stream.WriteLine(" bspline");
break;
case ObjFreeFormType.Cardinal:
stream.Write("cstype");
if (element.IsRationalForm)
{
stream.Write(" rat");
}
stream.WriteLine(" cardinal");
break;
case ObjFreeFormType.Taylor:
stream.Write("cstype");
if (element.IsRationalForm)
{
stream.Write(" rat");
}
stream.WriteLine(" taylor");
break;
}
if (element.DegreeV == 0)
{
stream.WriteLine("deg {0}", element.DegreeU);
}
else
{
stream.WriteLine("deg {0} {1}", element.DegreeU, element.DegreeV);
}
if (element.BasicMatrixU != null)
{
stream.Write("bmat u");
foreach (float value in element.BasicMatrixU)
{
stream.Write(' ');
stream.Write(value.ToString("F6", CultureInfo.InvariantCulture));
}
stream.WriteLine();
}
if (element.BasicMatrixV != null)
{
stream.Write("bmat v");
foreach (float value in element.BasicMatrixV)
{
stream.Write(' ');
stream.Write(value.ToString("F6", CultureInfo.InvariantCulture));
}
stream.WriteLine();
}
if (element.StepV == 1.0f)
{
stream.WriteLine(
"step {0}",
element.StepU.ToString("F6", CultureInfo.InvariantCulture));
}
else
{
stream.WriteLine(
"step {0} {1}",
element.StepU.ToString("F6", CultureInfo.InvariantCulture),
element.StepV.ToString("F6", CultureInfo.InvariantCulture));
}
if (element.CurveApproximationTechnique != null)
{
if (element.CurveApproximationTechnique is ObjConstantParametricSubdivisionTechnique)
{
var technique = (ObjConstantParametricSubdivisionTechnique)element.CurveApproximationTechnique;
stream.WriteLine("ctech cparm {0}", technique.ResolutionU.ToString("F6", CultureInfo.InvariantCulture));
}
else if (element.CurveApproximationTechnique is ObjConstantSpatialSubdivisionTechnique)
{
var technique = (ObjConstantSpatialSubdivisionTechnique)element.CurveApproximationTechnique;
stream.WriteLine("ctech cspace {0}", technique.MaximumLength.ToString("F6", CultureInfo.InvariantCulture));
}
else if (element.CurveApproximationTechnique is ObjCurvatureDependentSubdivisionTechnique)
{
var technique = (ObjCurvatureDependentSubdivisionTechnique)element.CurveApproximationTechnique;
stream.WriteLine(
"ctech curv {0} {1}",
technique.MaximumDistance.ToString("F6", CultureInfo.InvariantCulture),
technique.MaximumAngle.ToString("F6", CultureInfo.InvariantCulture));
}
}
if (element.SurfaceApproximationTechnique != null)
{
if (element.SurfaceApproximationTechnique is ObjConstantParametricSubdivisionTechnique)
{
var technique = (ObjConstantParametricSubdivisionTechnique)element.SurfaceApproximationTechnique;
if (technique.ResolutionU == technique.ResolutionV)
{
stream.WriteLine(
"stech cparmb {0}",
technique.ResolutionU.ToString("F6", CultureInfo.InvariantCulture));
}
else
{
stream.WriteLine(
"stech cparma {0} {1}",
technique.ResolutionU.ToString("F6", CultureInfo.InvariantCulture),
technique.ResolutionV.ToString("F6", CultureInfo.InvariantCulture));
}
}
else if (element.SurfaceApproximationTechnique is ObjConstantSpatialSubdivisionTechnique)
{
var technique = (ObjConstantSpatialSubdivisionTechnique)element.SurfaceApproximationTechnique;
stream.WriteLine("stech cspace {0}", technique.MaximumLength.ToString("F6", CultureInfo.InvariantCulture));
}
else if (element.SurfaceApproximationTechnique is ObjCurvatureDependentSubdivisionTechnique)
{
var technique = (ObjCurvatureDependentSubdivisionTechnique)element.SurfaceApproximationTechnique;
stream.WriteLine(
"stech curv {0} {1}",
technique.MaximumDistance.ToString("F6", CultureInfo.InvariantCulture),
technique.MaximumAngle.ToString("F6", CultureInfo.InvariantCulture));
}
}
}