Sporph.cs

using System;
using System.Collections.Generic;
using System.Linq;
using Grasshopper.Kernel;
using Grasshopper.Kernel.Types;
using Rhino.Geometry;
using Rhino.Geometry.Morphs;

namespace Jackalope
{
  public class Sporph : MorphComponent
  {
    private int m_ge_index = -1; // geometry
    private int m_s0_index = -1; // base surface
    private int m_p0_index = -1; // base surface uv
    private int m_s1_index = -1; // target surface
    private int m_p1_index = -1; // target surface uv
    private int m_ps_index = -1; // preserve structure
    private int m_qp_index = -1; // quick preview
    
    /// <summary>
    /// Initializes a new instance of the Sporph class.
    /// </summary>
    public Sporph()
      : base("Sporph", "Sporph", "Deforms an object from a source surface to a target surface")
    {
    }

    /// <summary>
    /// Registers all the input parameters for this component.
    /// </summary>
    protected override void RegisterInputParams(GH_InputParamManager pm)
    {
      m_ge_index = pm.AddGeometryParameter("Geometry", "G", "Base geometry", GH_ParamAccess.list);
      m_s0_index = pm.AddSurfaceParameter("Base", "S0", "Base surface", GH_ParamAccess.item);
      m_p0_index = pm.AddPointParameter("Parameter", "uv0", "U,V parameter on base surface used for orienting. If unset, then surface origin is used.", GH_ParamAccess.item, Point3d.Unset);
      m_s1_index = pm.AddSurfaceParameter("Target", "S1", "Target surface", GH_ParamAccess.item);
      m_p1_index = pm.AddPointParameter("Parameter", "uv1", "U,V parameter on target surface used for orienting. If unset, then surface origin is used.", GH_ParamAccess.item, Point3d.Unset);
      m_ps_index = pm.AddBooleanParameter("Preserve", "V", "If true, preserves the control point structure of the surface. If false, geometry is refit as needed with more control points to allow accurate deformation.", GH_ParamAccess.item, false);
      m_qp_index = pm.AddBooleanParameter("Quick", "Q", "If true, morph should be done as quickly as possible. If false, morph should be done as accurately as possible", GH_ParamAccess.item, false);

      pm[m_p0_index].Optional = true;
      pm[m_p1_index].Optional = true;
      pm[m_ps_index].Optional = true;
      pm[m_qp_index].Optional = true;
    }

    /// <summary>
    /// Registers all the output parameters for this component.
    /// </summary>
    protected override void RegisterOutputParams(GH_OutputParamManager pm)
    {
      pm.AddGeometryParameter("Geometry", "G", "Morphed geometry", GH_ParamAccess.list);
    }

    /// <summary>
    /// This is the method that actually does the work.
    /// </summary>
    protected override void SolveInstance(IGH_DataAccess da)
    {
      var geometry = new List<IGH_GeometricGoo>();
      Surface surface0 = null;
      var point0 = Point3d.Unset;
      Surface surface1 = null;
      var point1 = Point3d.Unset;
      var preserve_structure = false;
      var quick_preview = false;

      if (!da.GetDataList(m_ge_index, geometry) || 0 == geometry.Count)
        return;
      if (!da.GetData(m_s0_index, ref surface0))
        return;
      if (!da.GetData(m_p0_index, ref point0))
        return;
      if (!da.GetData(m_s1_index, ref surface1))
        return;
      if (!da.GetData(m_p1_index, ref point1))
        return;
      if (!da.GetData(m_ps_index, ref preserve_structure))
        return;
      if (!da.GetData(m_qp_index, ref quick_preview))
        return;

      var morph = new SporphSpaceMorph(surface0, surface1, new Point2d(point0), new Point2d(point1))
      {
        PreserveStructure = preserve_structure,
        QuickPreview = quick_preview
      };

      var output = geometry.Select(geom => geom.DuplicateGeometry().Morph(morph)).ToList();
      da.SetDataList(0, output);
    }

    /// <summary>
    /// Provides an Icon for the component.
    /// </summary>
    protected override System.Drawing.Bitmap Icon
    {
      get { return Properties.Resources.Sporph; }
    }

    /// <summary>
    /// Gets the unique ID for this component. Do not change this ID after release.
    /// </summary>
    public override Guid ComponentGuid
    {
      get { return new Guid("{59294139-c035-4442-bf95-f2028132ddd6}"); }
    }
  }
}