/// <summary>
/// Creates preview line segments of the hatch pattern.
/// </summary>
/// <param name="width">The width of the preview.</param>
/// <param name="height">The height of the preview.</param>
/// <param name="angle">The rotation angle of the pattern display in radians.</param>
/// <returns>The preview line segments if successful, an empty array on failure.</returns>
/// <since>6.8</since>
public Rhino.Geometry.Line[] CreatePreviewGeometry(int width, int height, double angle)
{
IntPtr const_ptr_this = ConstPointer();
using (var line_array = new Runtime.InteropWrappers.SimpleArrayLine())
{
IntPtr ptr_lines = line_array.NonConstPointer();
int rc = UnsafeNativeMethods.RHC_RhCreateHatchPatternPreviewGeometry(const_ptr_this, width, height, angle, ptr_lines);
if (rc == 0)
{
return(new Rhino.Geometry.Line[0]);
}
return(line_array.ToArray());
}
}
/// <summary>
/// Generate geometry that would be used to draw the hatch with a given hatch pattern
/// </summary>
/// <param name="pattern"></param>
/// <param name="patternScale"></param>
/// <param name="bounds"></param>
/// <param name="lines"></param>
/// <param name="solidBrep"></param>
public void CreateDisplayGeometry(DocObjects.HatchPattern pattern, double patternScale, out Curve[] bounds, out Line[] lines, out Brep solidBrep)
{
IntPtr const_ptr_this = ConstPointer();
IntPtr const_ptr_pattern = pattern.ConstPointer();
using (var curve_array = new Runtime.InteropWrappers.SimpleArrayCurvePointer())
using (var line_array = new Runtime.InteropWrappers.SimpleArrayLine())
{
IntPtr ptr_curves = curve_array.NonConstPointer();
IntPtr ptr_lines = line_array.NonConstPointer();
IntPtr ptr_brep = UnsafeNativeMethods.CRhinoHatchPattern_CreateDisplay(const_ptr_this, const_ptr_pattern, patternScale, ptr_curves, ptr_lines);
solidBrep = (ptr_brep == IntPtr.Zero) ? null : new Brep(ptr_brep, null);
bounds = curve_array.ToNonConstArray();
lines = line_array.ToArray();
}
}
/// <summary>
/// Quickly intersects two meshes. Overlaps and near misses are ignored.
/// </summary>
/// <param name="meshA">First mesh for intersection.</param>
/// <param name="meshB">Second mesh for intersection.</param>
/// <returns>An array of intersection line segments.</returns>
public static Line[] MeshMeshFast(Mesh meshA, Mesh meshB)
{
IntPtr ptrA = meshA.ConstPointer();
IntPtr ptrB = meshB.ConstPointer();
Line[] intersectionLines = new Line[0];
using (Runtime.InteropWrappers.SimpleArrayLine arr = new Runtime.InteropWrappers.SimpleArrayLine())
{
IntPtr pLines = arr.NonConstPointer();
int rc = UnsafeNativeMethods.ON_Mesh_IntersectMesh(ptrA, ptrB, pLines);
if (rc > 0)
intersectionLines = arr.ToArray();
}
return intersectionLines;
}
/// <summary>
/// Generate geometry that would be used to draw the hatch with a given hatch pattern
/// </summary>
/// <param name="pattern"></param>
/// <param name="patternScale"></param>
/// <param name="bounds"></param>
/// <param name="lines"></param>
/// <param name="solidBrep"></param>
public void CreateDisplayGeometry(DocObjects.HatchPattern pattern, double patternScale, out Curve[] bounds, out Line[] lines, out Brep solidBrep)
{
IntPtr const_ptr_this = ConstPointer();
IntPtr const_ptr_pattern = pattern.ConstPointer();
using(var curve_array = new Runtime.InteropWrappers.SimpleArrayCurvePointer())
using(var line_array = new Runtime.InteropWrappers.SimpleArrayLine())
{
IntPtr ptr_curves = curve_array.NonConstPointer();
IntPtr ptr_lines = line_array.NonConstPointer();
IntPtr ptr_brep = UnsafeNativeMethods.CRhinoHatchPattern_CreateDisplay(const_ptr_this, const_ptr_pattern, patternScale, ptr_curves, ptr_lines);
solidBrep = (ptr_brep==IntPtr.Zero) ? null : new Brep(ptr_brep, null);
bounds = curve_array.ToNonConstArray();
lines = line_array.ToArray();
}
}
