protected override void SolveInstance(IGH_DataAccess DA)
{
List <GH_Element> elements = new List <GH_Element>();
List <GH_Support> supports = new List <GH_Support>();
List <GH_Load> loads = new List <GH_Load>();
int modelType = 1;
if (!DA.GetDataList <GH_Element>(0, elements))
{
return;
}
if (!DA.GetDataList <GH_Support>(1, supports))
{
return;
}
if (!DA.GetDataList <GH_Load>(2, loads))
{
return;
}
if (!DA.GetData(3, ref modelType))
{
return;
}
//Clear current structure... Perhaps change this for a more parametric approach, or opening existing files
GH_Model model = null;
switch (modelType)
{
case 0:
model = new GH_Model(ModelType.Truss2D, elements, loads, supports);
break;
case 1:
model = new GH_Model(ModelType.Full3D, elements, loads, supports);
break;
case 2:
model = new GH_Model(ModelType.Membrane3D, elements, loads, supports);
break;
default:
throw new Exception("Model type does not exist or not yet implemented");
}
model.AssembleSharpModel();
DA.SetData(0, model);
}
public void Truss()
{
model = new GH_Model(ModelType.Full3D);
GH_CrossSection crossSection = new GH_RectangularCrossSection(100, 100);
GH_Material material = new GH_ElasticMaterial(100, 100, 100, 100);
Point3d p1 = new Point3d(-10, 0, 0);
Point3d p2 = new Point3d(0, 0, 0);
Point3d p3 = new Point3d(10, 0, 0);
Point3d p4 = new Point3d(-10, 0, 10);
Point3d p5 = new Point3d(0, 0, 10);
Point3d p6 = new Point3d(10, 0, 10);
model.Elements.Add(new GH_Beam(p1, p2, crossSection, material));
model.Elements.Add(new GH_Beam(p2, p3, crossSection, material));
model.Elements.Add(new GH_Beam(p4, p5, crossSection, material));
model.Elements.Add(new GH_Beam(p5, p6, crossSection, material));
model.Elements.Add(new GH_Beam(p1, p4, crossSection, material));
model.Elements.Add(new GH_Beam(p2, p5, crossSection, material));
model.Elements.Add(new GH_Beam(p3, p6, crossSection, material));
model.Elements.Add(new GH_Beam(p4, p2, crossSection, material));
model.Elements.Add(new GH_Beam(p2, p6, crossSection, material));
model.Supports.Add(new GH_NodeSupport(p1, true, true, true, true, true, true));
model.Supports.Add(new GH_NodeSupport(p3, true, true, true, true, true, true));
model.Loads.Add(new GH_NodalLoad(p5, new Vector3d(0, 0, -1000), new Vector3d(0, 0, 0)));
model.AssembleSharpModel();
Assert.AreEqual(9, model.Model.ElementCount);
model.Solve();
Assert.NotNull(model.Results);
Vector3d displacement = model.GetNodeDisplacement(1); //Displacement at point2 (index 1)
Assert.NotNull(displacement);
Assert.AreEqual(0.0, displacement.X, 0.001);
Assert.AreEqual(0.0, displacement.Y, 0.001);
Assert.AreNotEqual(0.0, displacement.Z); //TODO Calculate real value
}