lib3mf/Source/Common/MeshInformation/NMR_MeshInformationHandler.cpp

/*++

Copyright (C) 2019 3MF Consortium

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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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Abstract:

NMR_MeshInformationHandler.cpp implements the Mesh Information Handler Class.
It allows to include different kinds of information in one mesh (like Textures AND colors).

--*/

#include "Common/MeshInformation/NMR_MeshInformationHandler.h" 
#include "Common/Math/NMR_Vector.h" 
#include "Common/NMR_Exception.h" 
#include <cmath>

namespace NMR {

	CMeshInformationHandler::CMeshInformationHandler()
	{
		nfInt32 eType;
		for (eType = emiAbstract; eType < emiLastType; eType++) {
			m_pLookup[eType] = NULL;
		}

		m_nInternalIDCounter = 1;

	}

	void CMeshInformationHandler::addInformation(_In_ PMeshInformation pInformation)
	{
		__NMRASSERT(pInformation.get());

		eMeshInformationType eType = pInformation->getType();

		m_pInformations.push_back(pInformation);
		m_pLookup[eType] = pInformation.get();

		pInformation->setInternalID(m_nInternalIDCounter);
		m_nInternalIDCounter++;

		if (m_nInternalIDCounter > MESHINFORMATION_MAXINTERNALID)
			throw CNMRException(NMR_ERROR_HANDLEOVERFLOW);
	}

	void CMeshInformationHandler::addFace(_In_ nfUint32 nNewFaceCount)
	{
		std::vector<PMeshInformation>::iterator iter = m_pInformations.begin();

		while (iter != m_pInformations.end()) {
			MESHINFORMATIONFACEDATA * pData = (*iter)->addFaceData(nNewFaceCount);
			if (pData)
				(*iter)->invalidateFace(pData);

			iter++;
		}
	}

	CMeshInformation * CMeshInformationHandler::getInformationIndexed(_In_ nfUint32 nIdx)
	{
		if (nIdx >= (nfUint32)m_pInformations.size())
			throw CNMRException(NMR_ERROR_INVALIDMESHINFORMATIONINDEX);

		return m_pInformations[nIdx].get();
	}

	PMeshInformation CMeshInformationHandler::getPInformationIndexed(_In_ nfUint32 nIdx)
	{
		if (nIdx >= (nfUint32)m_pInformations.size())
			throw CNMRException(NMR_ERROR_INVALIDMESHINFORMATIONINDEX);

		return m_pInformations[nIdx];
	}

	CMeshInformation * CMeshInformationHandler::getInformationByType(_In_ nfUint32 nChannel, _In_ eMeshInformationType eType)
	{
		return m_pLookup[eType];
	}

	nfUint32 CMeshInformationHandler::getInformationCount()
	{
		return (nfUint32)m_pInformations.size();
	}

	void CMeshInformationHandler::addInfoTableFrom(_In_ CMeshInformationHandler * pOtherInfoHandler, _In_ nfUint32 nCurrentFaceCount)
	{
		nfInt32 eType;
		for (eType = emiAbstract; eType < emiLastType; eType++) {
			if ((pOtherInfoHandler->m_pLookup[eType]) && (!m_pLookup[eType]))
				addInformation(pOtherInfoHandler->m_pLookup[eType]->cloneInstance(nCurrentFaceCount));
			if ((pOtherInfoHandler->m_pLookup[eType]) && (m_pLookup[eType]))
				m_pLookup[eType]->mergeInformationFrom(pOtherInfoHandler->m_pLookup[eType]);
		}
	}

	void CMeshInformationHandler::cloneDefaultInfosFrom(_In_ CMeshInformationHandler * pOtherInfoHandler)
	{
		nfInt32 eType;
		for (eType = emiAbstract; eType < emiLastType; eType++) {
			if ((pOtherInfoHandler->m_pLookup[eType]) && (m_pLookup[eType]))
				m_pLookup[eType]->cloneDefaultInfosFrom(pOtherInfoHandler->m_pLookup[eType]);
		}
	}

	void CMeshInformationHandler::cloneFaceInfosFrom(_In_ nfUint32 nFaceIdx, _In_ CMeshInformationHandler * pOtherInfoHandler, _In_ nfUint32 nOtherFaceIndex)
	{
		nfInt32 eType;
		for (eType = emiAbstract; eType < emiLastType; eType++) {
			if ((pOtherInfoHandler->m_pLookup[eType]) && (m_pLookup[eType]))
				m_pLookup[eType]->cloneFaceInfosFrom(nFaceIdx, pOtherInfoHandler->m_pLookup[eType], nOtherFaceIndex);
		}
	}

	void CMeshInformationHandler::permuteNodeInformation(_In_ nfUint32 nFaceIdx, _In_ nfUint32 nNodeIndex1, _In_ nfUint32 nNodeIndex2, _In_ nfUint32 nNodeIndex3)
	{
		std::vector<PMeshInformation>::iterator iter = m_pInformations.begin();

		while (iter != m_pInformations.end()) {
			(*iter)->permuteNodeInformation(nFaceIdx, nNodeIndex1, nNodeIndex2, nNodeIndex3);
			iter++;
		}
	}

	void CMeshInformationHandler::resetFaceInformation(_In_ nfUint32 nFaceIdx)
	{
		std::vector<PMeshInformation>::iterator iter = m_pInformations.begin();

		while (iter != m_pInformations.end()) {
			(*iter)->resetFaceInformation(nFaceIdx);
			iter++;
		}
	}

	void CMeshInformationHandler::removeInformation(eMeshInformationType eType)
	{
		nfUint32 nCount = (nfUint32)m_pInformations.size();
		nfUint32 nIdx;
		nfUint32 nNewIdx = 0;

		m_pLookup[eType] = NULL;

		for (nIdx = 0; nIdx < nCount; nIdx++) {
			eMeshInformationType eCurrentType = m_pInformations[nIdx]->getType();
			if (eCurrentType != eType) {
				m_pInformations[nNewIdx] = m_pInformations[nIdx];
				nNewIdx++;
			}
		}

		if (nNewIdx < nCount) {
			for (nIdx = nNewIdx; nIdx < nCount; nIdx++)
				m_pInformations.pop_back();
		}
	}


	void CMeshInformationHandler::removeInformationIndexed(_In_ nfUint32 nIndex)
	{
		nfUint32 nCount = (nfUint32)m_pInformations.size();
		nfUint32 nIdx;
		if (nIndex >= nCount)
			throw CNMRException(NMR_ERROR_INVALIDINDEX);

		PMeshInformation pInformation = m_pInformations[nIndex];
		eMeshInformationType eType = pInformation->getType();

		// clean lookup table
		if (m_pLookup[eType] == pInformation.get()) {
			m_pLookup[eType] = nullptr;
		}

		// reorder vector
		for (nIdx = nIndex; nIdx < nCount - 1; nIdx++) {
			m_pInformations[nIdx] = m_pInformations[nIdx + 1];
		}
		m_pInformations[nCount - 1] = nullptr;
		m_pInformations.pop_back();
	}

}