/*                 Axis1Placement.cpp
 * BRL-CAD
 *
 * Copyright (c) 1994-2011 United States Government as represented by
 * the U.S. Army Research Laboratory.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * version 2.1 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this file; see the file named COPYING for more
 * information.
 */
/** @file step/Axis1Placement.cpp
 *
 * Routines to convert STEP "Axis1Placement" to BRL-CAD BREP
 * structures.
 *
 */
#include "STEPWrapper.h"
#include "Factory.h"

#include "vmath.h"
#include "CartesianPoint.h"
#include "Direction.h"

#include "Axis1Placement.h"

#define CLASSNAME "Axis1Placement"
#define ENTITYNAME "Axis1_Placement"
string Axis1Placement::entityname = Factory::RegisterClass(ENTITYNAME,(FactoryMethod)Axis1Placement::Create);

Axis1Placement::Axis1Placement() {
	step = NULL;
	id = 0;
	axis = NULL;
}

Axis1Placement::Axis1Placement(STEPWrapper *sw,int step_id) {
	step = sw;
	id = step_id;
	axis = NULL;
}

Axis1Placement::~Axis1Placement() {
}

void
Axis1Placement::BuildAxis() {

	if (axis == NULL) {
		VSET(z,1.0,0.0,0.0);
	} else {
		VMOVE(z,axis->DirectionRatios());
		VUNITIZE(z);
	}
	return;
}

const double *
Axis1Placement::GetAxis() {
	return z;
}

const double *
Axis1Placement::GetOrigin() {
	return location->Coordinates();
}

const double *
Axis1Placement::GetNormal() {
	return z;
}

const double *
Axis1Placement::GetXAxis() {
	return z;
}

const double *
Axis1Placement::GetYAxis() {
	return z;
}

bool
Axis1Placement::Load(STEPWrapper *sw,SCLP23(Application_instance) *sse) {
	step=sw;
	id = sse->STEPfile_id;

	if ( !Placement::Load(step,sse) ) {
		std::cout << CLASSNAME << ":Error loading base class ::Placement." << std::endl;
		return false;
	}

	// need to do this for local attributes to makes sure we have
	// the actual entity and not a complex/supertype parent
	sse = step->getEntity(sse,ENTITYNAME);

	if (axis == NULL) {
		SCLP23(Application_instance) *entity = step->getEntityAttribute(sse,"axis");
		if (entity) {
			axis = dynamic_cast<Direction *>(Factory::CreateObject(sw,entity));
		} else { // optional so no problem if not here
			axis = NULL;
		}
	}

	BuildAxis();

	return true;
}

void
Axis1Placement::Print(int level) {
	TAB(level); std::cout << CLASSNAME << ":" << std::endl;

	TAB(level); std::cout << "Attributes:" << std::endl;
	TAB(level+1); std::cout << "ref_direction:" << std::endl;
	if (axis)
		axis->Print(level+1);

	TAB(level); std::cout << "Inherited Attributes:" << std::endl;
	Placement::Print(level+1);

}

STEPEntity *
Axis1Placement::Create(STEPWrapper *sw, SCLP23(Application_instance) *sse) {
	Factory::OBJECTS::iterator i;
	if ((i = Factory::FindObject(sse->STEPfile_id)) == Factory::objects.end()) {
		Axis1Placement *object = new Axis1Placement(sw,sse->STEPfile_id);

		Factory::AddObject(object);

		if (!object->Load(sw, sse)) {
			std::cerr << CLASSNAME << ":Error loading class in ::Create() method." << std::endl;
			delete object;
			return NULL;
		}
		return static_cast<STEPEntity *>(object);
	} else {
		return (*i).second;
	}
}

bool
Axis1Placement::LoadONBrep(ON_Brep *brep)
{
	std::cerr << "Error: ::LoadONBrep(ON_Brep *brep<" << std::hex << brep << ">) not implemented for " << entityname << std::endl;
	return false;
}

// Local Variables:
// tab-width: 8
// mode: C++
// c-basic-offset: 4
// indent-tabs-mode: t
// c-file-style: "stroustrup"
// End:
// ex: shiftwidth=4 tabstop=8
