GEEKING

CSG/sgCore/ExtendedClasses/Torus.cpp

@@ -0,0 +1,74 @@
+#include "..//Core//sg.h"
+
+sgCTorus::sgCTorus():sgC3DObject()
+{
+}
+
+sgCTorus::~sgCTorus()
+{
+}
+
+sgCTorus::sgCTorus(SG_OBJ_HANDLE objH):sgC3DObject(objH)
+{
+	char* typeID = "{0000000000000-0000-0005-000000000009}";
+	set_hobj_attr_value(id_TypeID, objH, typeID);
+
+	PostCreate();
+
+}
+
+sgCTorus* sgCTorus::Create(sgFloat r1,sgFloat r2,short m1,short m2)
+{
+	if (r1<eps_d ||
+		r2<eps_d ||
+		r2>r1 ||
+		m1<2 ||
+		m2<2)
+		return NULL;
+
+	sgFloat par[4];
+	par[0] = r1;  
+	par[1] = r2;
+	par[2] = (sgFloat)m1;
+	par[3] = (sgFloat)m2;
+
+	hOBJ hO = create_primitive_obj(TOR, par); 
+	assert(hO);
+
+	sgCTorus*   newT=new sgCTorus(hO);
+
+	newT->PostCreate();
+
+	return  newT;
+}
+
+
+void sgCTorus::GetGeometry(SG_TORUS& 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.Radius1 = pars[0];
+	res.Radius2 = pars[1];
+	res.MeridiansCount1 = static_cast<short>(pars[2]);
+	res.MeridiansCount2 = static_cast<short>(pars[3]);
+	
+	free(pars);
+}