public static List <Polygon> OutlinePolygonsByShell(Shell shell, GridBasis basis)
{
double bottom = shell.BBox.Min.Z;
double top = shell.BBox.Max.Z;
Range1i levelRange = new Range1i(basis.Level(bottom), basis.Level(top));
List <Polygon> polygons = new List <Polygon>();
for (int level = levelRange.Low; level <= levelRange.High; ++level)
{
double height = basis.FloorHeight(level);
Outline2d outline = shell.GetFloorOutline(height);
if (outline == null)
{
continue;
}
if (outline.Polygons == null)
{
continue;
}
foreach (Polygon2d polygon in outline.Polygons)
{
polygons.Add(PolygonByPolygon2d(polygon, height));
}
}
return(polygons);
}
internal Grid2d(Outline2d outline, GridBasis basis)
{
m_outline = outline;
m_basis = basis;
m_extents = m_basis.Extend(m_outline.BBox);
m_axes = null;
}
public Line2d ToLine(GridBasis basis, int ordinal)
{
return
(new Line2d(
new PointAxis2d.Value(m_abscissa, m_ordinate.Min).ToPoint(basis, ordinal),
new PointAxis2d.Value(m_abscissa, m_ordinate.Max).ToPoint(basis, ordinal)));
}
public static Value FromPoint2d(GridBasis basis, int ordinal, Point2d point, bool snap)
{
if (ordinal == 0)
{
int abscissa = basis.ToGrid(ordinal, point.X);
if (!snap && !point.X.Compare(basis.FromGrid(ordinal, abscissa)))
{
return(null);
}
return(new Value(abscissa, point.Y));
}
if (ordinal == 1)
{
int abscissa = basis.ToGrid(ordinal, point.Y);
if (!snap && !point.Y.Compare(basis.FromGrid(ordinal, abscissa)))
{
return(null);
}
return(new Value(abscissa, point.X));
}
return(null);
}
internal void OutputBasis(ref string text, GridBasis basis)
{
string tag = "basis";
OutputHeader(ref text, tag);
IndentIn();
List <Vector2d> vectors = basis.Vectors;
for (int index = 0; index < vectors.Count; ++index)
{
OutputTextLine(ref text, "ordinal " + EncodeDouble(basis.GridSize(index)) + " " + EncodePoint2d(vectors[index]));
}
IndentOut();
OutputFooter(ref text, tag);
}
public Point2d ToPoint(GridBasis basis, int ordinal)
{
double v0 = basis.FromGrid(ordinal, m_abscissa);
double v1 = m_ordinate;
if (ordinal == 0)
{
return(new Point2d(v0, v1));
}
if (ordinal == 1)
{
return(new Point2d(v1, v0));
}
return(null);
}
internal void OutputAxes(ref string text, GridBasis basis, List <RangeAxis2d> axes)
{
if (axes == null)
{
return;
}
string tag = "axes";
OutputHeader(ref text, tag);
IndentIn();
for (int index = 0; index < axes.Count; ++index)
{
OutputAxis(ref text, basis, index, axes[index]);
}
IndentOut();
OutputFooter(ref text, tag);
}
internal void OutputAxis(ref string text, GridBasis basis, int ordinal, RangeAxis2d axis)
{
string tag = "axis";
OutputHeader(ref text, tag);
IndentIn();
foreach (KeyValuePair <int, List <Range1d> > lineData in axis.Lines)
{
foreach (Range1d range in lineData.Value)
{
int v0 = basis.ToGrid(ordinal, range.Min);
int v1 = basis.ToGrid(ordinal, range.Max);
OutputTextLine(ref text, "seg " + EncodeInt(lineData.Key) + " " + EncodeInt(v0) + " " + EncodeInt(v1));
}
}
IndentOut();
OutputFooter(ref text, tag);
}
public static Value FromLine2d(GridBasis basis, int ordinal, Line2d line, bool snap)
{
PointAxis2d.Value p0 = PointAxis2d.Value.FromPoint2d(basis, ordinal, line.StartPoint, snap);
if (p0 == null)
{
return(null);
}
PointAxis2d.Value p1 = PointAxis2d.Value.FromPoint2d(basis, ordinal, line.EndPoint, snap);
if (p1 == null)
{
return(null);
}
if (p0.Abscissa != p1.Abscissa)
{
return(null);
}
return(new Value(p0.Abscissa, new Range1d(p0.Ordinate, p1.Ordinate)));
}
public static Grid2d ByOutline(Outline2d outline, GridBasis basis)
{
return(new Grid2d(outline, basis));
}
public RangeAxis2d(GridBasis basis, int ordinal)
{
m_basis = basis;
m_ordinal = ordinal;
m_lines = new SortedList <int, List <Range1d> >();
}
public PointAxis2d(GridBasis basis, int ordinal)
{
m_basis = basis;
m_ordinal = ordinal;
m_points = new SortedList <int, List <double> >();
}