GEEKING

CSG/sgCore/ExtendedClasses/Cylinder.cpp

@@ -0,0 +1,70 @@
+#include "..//Core//sg.h"
+
+sgCCylinder::sgCCylinder():sgC3DObject()
+{
+}
+
+sgCCylinder::~sgCCylinder()
+{
+}
+
+sgCCylinder::sgCCylinder(SG_OBJ_HANDLE objH):sgC3DObject(objH)
+{
+	char* typeID = "{0000000000000-0000-0003-000000000009}";
+	set_hobj_attr_value(id_TypeID, objH, typeID);
+
+	PostCreate();
+
+}
+
+sgCCylinder* sgCCylinder::Create(sgFloat rad, sgFloat heig, short merid)
+{
+	if (rad<eps_d ||
+		heig<eps_d ||
+		merid<2)
+		return NULL;
+
+	sgFloat par[3];
+	par[0] = rad;
+	par[1] = heig;
+	par[2] = (sgFloat)merid;
+	
+	hOBJ hO = create_primitive_obj(CYL, par); 
+	assert(hO);
+
+	sgCCylinder*   newC=new sgCCylinder(hO);
+
+	newC->PostCreate();
+
+	return  newC;
+}
+
+
+void sgCCylinder::GetGeometry(SG_CYLINDER& res) const
+{
+	lpOBJ 	obj = static_cast<lpOBJ>(GetObjectHandle(this));
+	assert(obj);
+
+	lpGEO_BREP 	geo = (lpGEO_BREP)(obj->geo_data);
+	assert(geo);
+
+	LNP		  	lnp;
+
+	if ( !read_elem(&vd_brep,geo->num,&lnp) )
+	{
+		assert(0);
+	}
+
+	lpCSG  csg = static_cast<lpCSG>(lnp.hcsg);
+	assert(csg);
+
+	sgFloat*  pars = (sgFloat*)malloc(csg->size);
+
+	memcpy(pars, csg->data, csg->size);
+
+	res.Radius = pars[0];
+	res.Height = pars[1];
+	res.MeridiansCount = static_cast<short>(pars[2]);
+	
+	free(pars);
+}