/// <summary>
/// This must be called after any changes to the field.
/// </summary>
public void UpdateGradient()
{
if (_gradient == null || _gradient.Count != _field.Count)
{
_gradient = new GridVectorField3d(_field);
}
_field.GetGradient(_gradient);
}
/// <summary>
/// This is the method that actually does the work.
/// </summary>
/// <param name="DA">The DA object can be used to retrieve data from input parameters and
/// to store data in output parameters.</param>
protected override void SolveInstance(IGH_DataAccess DA)
{
GH_Box box = null;
if (!DA.GetData(0, ref box))
{
return;
}
GH_Integer nx = null;
if (!DA.GetData(1, ref nx))
{
return;
}
GH_Integer ny = null;
if (!DA.GetData(2, ref ny))
{
return;
}
GH_Integer nz = null;
DA.GetData(3, ref nz);
List <GH_Vector> vals = new List <GH_Vector>();
DA.GetDataList(4, vals);
if (nz == null)
{
var d = box.Value.BoundingBox.ToInterval2d();
var f = new GridVectorField2d(d, nx.Value, ny.Value, _wrapX, _wrapY, _sample);
// set values
if (vals != null)
{
if (vals.Count == 1)
{
var v = vals[0].Value;
f.Set(new Vec2d(v.X, v.Y));
}
else
{
f.Set(vals.Select(x =>
{
var v = x.Value;
return(new Vec2d(v.X, v.Y));
}));
}
}
DA.SetData(0, new GH_ObjectWrapper(f));
}
else
{
var d = box.Value.BoundingBox.ToInterval3d();
var f = new GridVectorField3d(d, nx.Value, ny.Value, nz.Value, _wrapX, _wrapY, _wrapZ, _sample);
// set values
if (vals != null)
{
if (vals.Count == 1)
{
f.Set(vals[0].Value.ToVec3d());
}
else
{
f.Set(vals.Select(x => x.Value.ToVec3d()));
}
}
DA.SetData(0, new GH_ObjectWrapper(f));
}
}