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velocity_mesh_old.h
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velocity_mesh_old.h
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/*
* This file is part of Vlasiator.
* Copyright 2010-2016 Finnish Meteorological Institute
*
* For details of usage, see the COPYING file and read the "Rules of the Road"
* at http://www.physics.helsinki.fi/vlasiator/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef VELOCITY_MESH_OLD_H
#define VELOCITY_MESH_OLD_H
#include <iostream>
#include <sstream>
#include <stdint.h>
#include <vector>
#include <unordered_map>
#include <set>
#include <cmath>
#include "velocity_mesh_parameters.h"
namespace vmesh {
template<typename GID,typename LID>
class VelocityMesh {
public:
VelocityMesh();
~VelocityMesh();
size_t capacityInBytes() const;
bool check() const;
void clear();
bool coarsenAllowed(const GID& globalID) const;
bool copy(const LID& sourceLocalID,const LID& targetLocalID);
size_t count(const GID& globalID) const;
GID findBlockDown(uint8_t& refLevel,GID cellIndices[3]) const;
GID findBlock(uint8_t& refLevel,GID cellIndices[3]) const;
bool getBlockCoordinates(const GID& globalID,Real coords[3]) const;
void getBlockInfo(const GID& globalID,Real* array) const;
const Real* getBlockSize(const uint8_t& refLevel) const;
bool getBlockSize(const GID& globalID,Real size[3]) const;
const Real* getCellSize(const uint8_t& refLevel) const;
bool getCellSize(const GID& globalID,Real size[3]) const;
void getChildren(const GID& globalID,std::vector<GID>& children) const;
// void getChildren(const GlobalID& globalID,std::vector<GlobalID>& children);
GID getGlobalID(const LID& localID) const;
GID getGlobalID(const uint8_t& refLevel,const Real* coords) const;
GID getGlobalID(const uint8_t& refLevel,LID indices[3]) const;
GID getGlobalID(const uint32_t& refLevel,const LID& i,const LID& j,const LID& k) const;
GID getGlobalIndexOffset(const uint8_t& refLevel=0);
std::vector<GID>& getGrid();
const LID* getGridLength(const uint8_t& refLevel) const;
// void getNeighbors(const GlobalID& globalID,std::vector<GlobalID>& neighborIDs);
void getIndices(const GID& globalID,uint8_t& refLevel,LID& i,LID& j,LID& k) const;
size_t getMesh() const;
LID getLocalID(const GID& globalID) const;
uint8_t getMaxAllowedRefinementLevel() const;
GID getMaxVelocityBlocks() const;
const Real* getMeshMaxLimits() const;
const Real* getMeshMinLimits() const;
void getNeighborsAtSameLevel(const GID& globalID,std::vector<GID>& neighborIDs) const;
void getNeighborsExistingAtOffset(const GID& globalID,const int& i,const int& j,
const int& k,std::vector<LID>& neighborLIDs,int32_t& refLevelDifference) const;
int getOctant(const GID& globalID) const;
GID getParent(const GID& globalID) const;
uint8_t getRefinementLevel(const GID& globalID) const;
// void getSiblingNeighbors(const GlobalID& globalID,std::vector<GlobalID>& nbrs);
// void getSiblings(const GlobalID& globalID,GlobalID siblings[8]);
void getSiblings(const GID& globalID,std::vector<GID>& siblings) const;
bool hasChildren(const GID& globalID) const;
GID hasGrandParent(const GID& globalID) const;
bool initialize(const size_t& meshID,std::vector<vmesh::MeshParameters>& meshParameters);
bool initialize(const size_t& meshID);
static LID invalidBlockIndex();
static GID invalidGlobalID();
static LID invalidLocalID();
bool isInitialized() const;
void pop();
bool push_back(const GID& globalID);
bool push_back(const std::vector<GID>& blocks);
bool refine(const GID& globalID,std::set<GID>& erasedBlocks,std::map<GID,LID>& insertedBlocks);
void setGrid();
bool setGrid(const std::vector<GID>& globalIDs);
bool setMesh(const size_t& meshID);
void setNewSize(const LID& newSize);
size_t size() const;
size_t sizeInBytes() const;
void swap(VelocityMesh& vm);
private:
static std::vector<vmesh::MeshParameters> meshParameters;
size_t meshID;
std::vector<GID> localToGlobalMap;
std::unordered_map<GID,LID> globalToLocalMap;
};
// ***** INITIALIZERS FOR STATIC MEMBER VARIABLES ***** //
template<typename GID,typename LID> std::vector<vmesh::MeshParameters> VelocityMesh<GID,LID>::meshParameters;
// ***** DEFINITIONS OF TEMPLATE MEMBER FUNCTIONS ***** //
template<typename GID,typename LID> inline
VelocityMesh<GID,LID>::VelocityMesh() {
meshID = std::numeric_limits<size_t>::max();
}
template<typename GID,typename LID> inline
VelocityMesh<GID,LID>::~VelocityMesh() { }
template<typename GID,typename LID> inline
size_t VelocityMesh<GID,LID>::capacityInBytes() const {
return localToGlobalMap.capacity()*sizeof(GID)
+ globalToLocalMap.bucket_count()*(sizeof(GID)+sizeof(LID));
}
template<typename GID,typename LID> inline
bool VelocityMesh<GID,LID>::check() const {
bool ok = true;
if (localToGlobalMap.size() != globalToLocalMap.size()) {
std::cerr << "VMO ERROR: sizes differ, " << localToGlobalMap.size() << " vs " << globalToLocalMap.size() << std::endl;
ok = false;
exit(1);
}
for (size_t b=0; b<size(); ++b) {
const LID globalID = localToGlobalMap[b];
typename std::unordered_map<GID,LID>::const_iterator it = globalToLocalMap.find(globalID);
const GID localID = it->second;
if (localID != b) {
ok = false;
std::cerr << "VMO ERROR: localToGlobalMap[" << b << "] = " << globalID << " but ";
std::cerr << "globalToLocalMap[" << globalID << "] = " << localID << std::endl;
exit(1);
}
}
return ok;
}
template<typename GID,typename LID> inline
void VelocityMesh<GID,LID>::clear() {
std::vector<GID>().swap(localToGlobalMap);
std::unordered_map<GID,LID>().swap(globalToLocalMap);
}
template<typename GID,typename LID> inline
bool VelocityMesh<GID,LID>::coarsenAllowed(const GID& globalID) const {
return false;
}
template<typename GID,typename LID> inline
bool VelocityMesh<GID,LID>::copy(const LID& sourceLID,const LID& targetLID) {
const GID sourceGID = localToGlobalMap[sourceLID]; // block at the end of list
const GID targetGID = localToGlobalMap[targetLID]; // removed block
// at-function will throw out_of_range exception for non-existing global ID:
globalToLocalMap.at(sourceGID) = targetLID;
localToGlobalMap[targetLID] = sourceGID;
globalToLocalMap.at(targetGID) = sourceLID; // These are needed to make pop() work
localToGlobalMap[sourceLID] = targetGID;
return true;
}
template<typename GID,typename LID> inline
size_t VelocityMesh<GID,LID>::count(const GID& globalID) const {
return globalToLocalMap.count(globalID);
}
template<typename GID,typename LID> inline
GID VelocityMesh<GID,LID>::findBlockDown(uint8_t& refLevel,GID cellIndices[3]) const {
// Calculate i/j/k indices of the block that would own the cell:
GID i_block = cellIndices[0] / meshParameters[meshID].blockLength[0];
GID j_block = cellIndices[1] / meshParameters[meshID].blockLength[1];
GID k_block = cellIndices[2] / meshParameters[meshID].blockLength[2];
// Calculate block global ID:
GID blockGID = getGlobalID(0,i_block,j_block,k_block);
// If the block exists, return it:
if (globalToLocalMap.find(blockGID) != globalToLocalMap.end()) {
return blockGID;
} else {
return invalidGlobalID();
}
}
template<typename GID,typename LID> inline
GID VelocityMesh<GID,LID>::findBlock(uint8_t& refLevel,GID cellIndices[3]) const {
return findBlockDown(refLevel,cellIndices);
}
/*
template<typename GID,typename LID> inline
const GID* VelocityMesh<GID,LID>::getBaseGridLength() {
return gridLength;
}
template<typename GID,typename LID> inline
const Real* VelocityMesh<GID,LID>::getBaseGridBlockSize() {
return blockSize;
}
template<typename GID,typename LID> inline
const Real* VelocityMesh<GID,LID>::getBaseGridCellSize() {
return cellSize;
}
*/
template<typename GID,typename LID> inline
bool VelocityMesh<GID,LID>::getBlockCoordinates(const GID& globalID,Real coords[3]) const {
if (globalID == invalidGlobalID()) {
for (int i=0; i<3; ++i) coords[i] = std::numeric_limits<Real>::quiet_NaN();
return false;
}
uint8_t refLevel;
LID indices[3];
getIndices(globalID,refLevel,indices[0],indices[1],indices[2]);
if (indices[0] == invalidBlockIndex()) {
for (int i=0; i<3; ++i) coords[i] = std::numeric_limits<Real>::quiet_NaN();
return false;
}
coords[0] = meshParameters[meshID].meshMinLimits[0] + indices[0]*meshParameters[meshID].blockSize[0];
coords[1] = meshParameters[meshID].meshMinLimits[1] + indices[1]*meshParameters[meshID].blockSize[1];
coords[2] = meshParameters[meshID].meshMinLimits[2] + indices[2]*meshParameters[meshID].blockSize[2];
return true;
}
template<typename GID,typename LID> inline
void VelocityMesh<GID,LID>::getBlockInfo(const GID& globalID,Real* array) const {
#ifndef NDEBUG
if (globalID == invalidGlobalID()) {
for (int i=0; i<6; ++i) array[i] = std::numeric_limits<Real>::infinity();
}
#endif
LID indices[3];
indices[0] = globalID % meshParameters[meshID].gridLength[0];
indices[1] = (globalID / meshParameters[meshID].gridLength[0]) % meshParameters[meshID].gridLength[1];
indices[2] = globalID / (meshParameters[meshID].gridLength[0] * meshParameters[meshID].gridLength[1]);
// Indices 0-2 contain coordinates of the lower left corner.
// The values are the same as if getBlockCoordinates(globalID,&(array[0])) was called
array[0] = meshParameters[meshID].meshMinLimits[0] + indices[0]*meshParameters[meshID].blockSize[0];
array[1] = meshParameters[meshID].meshMinLimits[1] + indices[1]*meshParameters[meshID].blockSize[1];
array[2] = meshParameters[meshID].meshMinLimits[2] + indices[2]*meshParameters[meshID].blockSize[2];
// Indices 3-5 contain the cell size.
// The values are the same as if getCellSize(globalID,&(array[3])) was called
array[3] = meshParameters[meshID].cellSize[0];
array[4] = meshParameters[meshID].cellSize[1];
array[5] = meshParameters[meshID].cellSize[2];
}
template<typename GID,typename LID> inline
const Real* VelocityMesh<GID,LID>::getBlockSize(const uint8_t& refLevel) const {
return meshParameters[meshID].blockSize;
}
template<typename GID,typename LID> inline
bool VelocityMesh<GID,LID>::getBlockSize(const GID& globalID,Real size[3]) const {
size[0] = meshParameters[meshID].blockSize[0];
size[1] = meshParameters[meshID].blockSize[1];
size[2] = meshParameters[meshID].blockSize[2];
return true;
}
template<typename GID,typename LID> inline
const Real* VelocityMesh<GID,LID>::getCellSize(const uint8_t& refLevel) const {
return meshParameters[meshID].cellSize;
}
template<typename GID,typename LID> inline
bool VelocityMesh<GID,LID>::getCellSize(const GID& globalID,Real size[3]) const {
size[0] = meshParameters[meshID].cellSize[0];
size[1] = meshParameters[meshID].cellSize[1];
size[2] = meshParameters[meshID].cellSize[2];
return true;
}
template<typename GID,typename LID> inline
void VelocityMesh<GID,LID>::getChildren(const GID& globalID,std::vector<GID>& children) const {
children.clear();
return;
}
template<typename GID,typename LID> inline
GID VelocityMesh<GID,LID>::getGlobalID(const LID& localID) const {
#ifndef NDEBUG
if (localID >= localToGlobalMap.size()) {
std::cerr << "ERROR invalid local id" << std::endl; exit(1);
}
#endif
return localToGlobalMap[localID];
}
template<typename GID,typename LID> inline
GID VelocityMesh<GID,LID>::getGlobalID(const uint8_t& refLevel,const Real* coords) const {
if (coords[0] < meshParameters[meshID].meshMinLimits[0] || coords[0] >= meshParameters[meshID].meshMaxLimits[0] ||
(coords[1] < meshParameters[meshID].meshMinLimits[1] || coords[1] >= meshParameters[meshID].meshMaxLimits[1] ||
coords[2] < meshParameters[meshID].meshMinLimits[2] || coords[2] >= meshParameters[meshID].meshMaxLimits[2])) {
return invalidGlobalID();
}
const LID indices[3] = {
static_cast<LID>(floor((coords[0] - meshParameters[meshID].meshMinLimits[0]) / meshParameters[meshID].blockSize[0])),
static_cast<LID>(floor((coords[1] - meshParameters[meshID].meshMinLimits[1]) / meshParameters[meshID].blockSize[1])),
static_cast<LID>(floor((coords[2] - meshParameters[meshID].meshMinLimits[2]) / meshParameters[meshID].blockSize[2]))
};
return indices[2]*meshParameters[meshID].gridLength[1]*meshParameters[meshID].gridLength[0]
+ indices[1]*meshParameters[meshID].gridLength[0] + indices[0];
}
template<typename GID,typename LID> inline
GID VelocityMesh<GID,LID>::getGlobalID(const uint8_t& refLevel,LID indices[3]) const {
if (indices[0] >= meshParameters[meshID].gridLength[0]) return invalidGlobalID();
if (indices[1] >= meshParameters[meshID].gridLength[1]) return invalidGlobalID();
if (indices[2] >= meshParameters[meshID].gridLength[2]) return invalidGlobalID();
return indices[2]*meshParameters[meshID].gridLength[1]*meshParameters[meshID].gridLength[0]
+ indices[1]*meshParameters[meshID].gridLength[0] + indices[0];
}
template<typename GID,typename LID> inline
GID VelocityMesh<GID,LID>::getGlobalID(const uint32_t& refLevel,const LID& i,const LID& j,const LID& k) const {
if (i >= meshParameters[meshID].gridLength[0] || j >= meshParameters[meshID].gridLength[1] || k >= meshParameters[meshID].gridLength[2]) {
return invalidGlobalID();
}
return i + j*meshParameters[meshID].gridLength[0]
+ k*meshParameters[meshID].gridLength[0]*meshParameters[meshID].gridLength[1];
}
template<typename GID,typename LID> inline
GID VelocityMesh<GID,LID>::getGlobalIndexOffset(const uint8_t& refLevel) {
return 0;
}
template<typename GID,typename LID> inline
std::vector<GID>& VelocityMesh<GID,LID>::getGrid() {
return localToGlobalMap;
}
template<typename GID,typename LID> inline
const LID* VelocityMesh<GID,LID>::getGridLength(const uint8_t& refLevel) const {
return meshParameters[meshID].gridLength;
}
template<typename GID,typename LID> inline
void VelocityMesh<GID,LID>::getIndices(const GID& globalID,uint8_t& refLevel,LID& i,LID& j,LID& k) const {
refLevel = 0;
if (globalID >= invalidGlobalID()) {
i = j = k = invalidBlockIndex();
} else {
i = globalID % meshParameters[meshID].gridLength[0];
j = (globalID / meshParameters[meshID].gridLength[0]) % meshParameters[meshID].gridLength[1];
k = globalID / (meshParameters[meshID].gridLength[0] * meshParameters[meshID].gridLength[1]);
}
}
template<typename GID,typename LID> inline
LID VelocityMesh<GID,LID>::getLocalID(const GID& globalID) const {
typename std::unordered_map<GID,LID>::const_iterator it = globalToLocalMap.find(globalID);
if (it != globalToLocalMap.end()) return it->second;
return invalidLocalID();
}
template<typename GID,typename LID> inline
uint8_t VelocityMesh<GID,LID>::getMaxAllowedRefinementLevel() const {
return 0;
}
template<typename GID,typename LID> inline
GID VelocityMesh<GID,LID>::getMaxVelocityBlocks() const {
return meshParameters[meshID].max_velocity_blocks;
}
template<typename GID,typename LID> inline
size_t VelocityMesh<GID,LID>::getMesh() const {
return meshID;
}
template<typename GID,typename LID> inline
const Real* VelocityMesh<GID,LID>::getMeshMaxLimits() const {
return meshParameters[meshID].meshMaxLimits;
}
template<typename GID,typename LID> inline
const Real* VelocityMesh<GID,LID>::getMeshMinLimits() const {
return meshParameters[meshID].meshMinLimits;
}
template<typename GID,typename LID> inline
void VelocityMesh<GID,LID>::getNeighborsAtSameLevel(const GID& globalID,std::vector<GID>& neighborIDs) const {
neighborIDs.resize(27);
// Calculate block refinement level and indices
uint8_t refLevel;
LID i,j,k;
getIndices(globalID,refLevel,i,j,k);
// Calculate global IDs of all 27 blocks:
const LID Nx_max = meshParameters[meshID].gridLength[0];
const LID Ny_max = meshParameters[meshID].gridLength[1];
const LID Nz_max = meshParameters[meshID].gridLength[2];
int nbr = 0;
for (int k_off=-1; k_off<2; ++k_off) for (int j_off=-1; j_off<2; ++j_off) for (int i_off=-1; i_off<2; ++i_off) {
if (i+i_off < Nx_max && (j+j_off < Ny_max && k+k_off < Nz_max)) neighborIDs[nbr] = getGlobalID(0,i+i_off,j+j_off,k+k_off);
else neighborIDs[nbr] = invalidGlobalID();
++nbr;
}
}
template<typename GID,typename LID> inline
void VelocityMesh<GID,LID>::getNeighborsExistingAtOffset(const GID& globalID,const int& i_off,const int& j_off,const int& k_off,std::vector<LID>& neighborLocalIDs,int32_t& refLevelDifference) const {
#ifndef NDEBUG
if (abs(i_off) > 1 || (abs(j_off) > 1 || abs(k_off) > 1)) {
std::stringstream ss;
ss << "VelocityMesh ERROR: invalid offsets in getNeighborsExistingAtOffset " << i_off << ' ' << j_off << ' ' << k_off << std::endl;
std::cerr << ss.str();
exit(1);
}
#endif
refLevelDifference = 0;
neighborLocalIDs.clear();
// Calculate block refinement level and indices
uint8_t refLevel;
LID i,j,k;
getIndices(globalID,refLevel,i,j,k);
// Return the requested neighbor if it exists:
typename std::unordered_map<GID,LID>::const_iterator nbr;
GID nbrGlobalID = getGlobalID(0,i+i_off,j+j_off,k+k_off);
if (nbrGlobalID == invalidGlobalID()) return;
nbr = globalToLocalMap.find(nbrGlobalID);
if (nbr != globalToLocalMap.end()) {
neighborLocalIDs.push_back(nbr->second);
refLevelDifference = 0;
return;
}
}
template<typename GID,typename LID> inline
int VelocityMesh<GID,LID>::getOctant(const GID& globalID) const {
// Calculate block indices and refinement level
uint8_t refLevel;
LID i,j,k;
getIndices(globalID,refLevel,i,j,k);
const int i_oct = i % 2;
const int j_oct = j % 2;
const int k_oct = k % 2;
return k_oct*2*2 + j_oct*2 + i_oct;
}
template<typename GID,typename LID> inline
GID VelocityMesh<GID,LID>::getParent(const GID& globalID) const {
return globalID;
}
template<typename GID,typename LID> inline
uint8_t VelocityMesh<GID,LID>::getRefinementLevel(const GID& globalID) const {
return 0;
}
template<typename GID,typename LID> inline
void VelocityMesh<GID,LID>::getSiblings(const GID& globalID,std::vector<GID>& siblings) const {
uint8_t refLevel;
LID i,j,k;
getIndices(globalID,refLevel,i,j,k);
siblings.resize(8);
i -= (i % 2);
j -= (j % 2);
k -= (k % 2);
siblings[0] = getGlobalID(refLevel,i ,j ,k );
siblings[1] = getGlobalID(refLevel,i+1,j ,k );
siblings[2] = getGlobalID(refLevel,i ,j+1,k );
siblings[3] = getGlobalID(refLevel,i+1,j+1,k );
siblings[4] = getGlobalID(refLevel,i ,j ,k+1);
siblings[5] = getGlobalID(refLevel,i+1,j ,k+1);
siblings[6] = getGlobalID(refLevel,i ,j+1,k+1);
siblings[7] = getGlobalID(refLevel,i+1,j+1,k+1);
}
template<typename GID,typename LID> inline
bool VelocityMesh<GID,LID>::hasChildren(const GID& globalID) const {
return false;
}
template<typename GID,typename LID> inline
GID VelocityMesh<GID,LID>::hasGrandParent(const GID& globalID) const {
return invalidGlobalID();
}
template<typename GID,typename LID> inline
bool VelocityMesh<GID,LID>::initialize(const size_t& meshID) {
this->meshID = meshID;
return true;
}
template<typename GID,typename LID> inline
bool VelocityMesh<GID,LID>::initialize(const size_t& meshID,std::vector<vmesh::MeshParameters>& meshParameters) {
meshParameters[meshID].initialized = false;
meshParameters[meshID].meshMinLimits[0] = meshParameters[meshID].meshLimits[0];
meshParameters[meshID].meshMinLimits[1] = meshParameters[meshID].meshLimits[2];
meshParameters[meshID].meshMinLimits[2] = meshParameters[meshID].meshLimits[4];
meshParameters[meshID].meshMaxLimits[0] = meshParameters[meshID].meshLimits[1];
meshParameters[meshID].meshMaxLimits[1] = meshParameters[meshID].meshLimits[3];
meshParameters[meshID].meshMaxLimits[2] = meshParameters[meshID].meshLimits[5];
// Calculate derived mesh parameters:
meshParameters[meshID].gridSize[0] = meshParameters[meshID].meshMaxLimits[0] - meshParameters[meshID].meshMinLimits[0];
meshParameters[meshID].gridSize[1] = meshParameters[meshID].meshMaxLimits[1] - meshParameters[meshID].meshMinLimits[1];
meshParameters[meshID].gridSize[2] = meshParameters[meshID].meshMaxLimits[2] - meshParameters[meshID].meshMinLimits[2];
meshParameters[meshID].blockSize[0] = meshParameters[meshID].gridSize[0] / meshParameters[meshID].gridLength[0];
meshParameters[meshID].blockSize[1] = meshParameters[meshID].gridSize[1] / meshParameters[meshID].gridLength[1];
meshParameters[meshID].blockSize[2] = meshParameters[meshID].gridSize[2] / meshParameters[meshID].gridLength[2];
meshParameters[meshID].cellSize[0] = meshParameters[meshID].blockSize[0] / meshParameters[meshID].blockLength[0];
meshParameters[meshID].cellSize[1] = meshParameters[meshID].blockSize[1] / meshParameters[meshID].blockLength[1];
meshParameters[meshID].cellSize[2] = meshParameters[meshID].blockSize[2] / meshParameters[meshID].blockLength[2];
meshParameters[meshID].max_velocity_blocks
= meshParameters[meshID].gridLength[0]
* meshParameters[meshID].gridLength[1]
* meshParameters[meshID].gridLength[2];
meshParameters[meshID].initialized = true;
vmesh::VelocityMesh<GID,LID>::meshParameters = meshParameters;
return meshParameters[meshID].initialized;
}
template<typename GID,typename LID> inline
LID VelocityMesh<GID,LID>::invalidBlockIndex() {
return INVALID_VEL_BLOCK_INDEX;
}
template<typename GID,typename LID> inline
GID VelocityMesh<GID,LID>::invalidGlobalID() {
return INVALID_GLOBALID;
}
template<typename GID,typename LID> inline
LID VelocityMesh<GID,LID>::invalidLocalID() {
return INVALID_LOCALID;
}
template<typename GID,typename LID> inline
bool VelocityMesh<GID,LID>::isInitialized() const {
return meshParameters[meshID].initialized;
}
template<typename GID,typename LID> inline
void VelocityMesh<GID,LID>::pop() {
if (size() == 0) return;
const LID lastLID = size()-1;
const GID lastGID = localToGlobalMap[lastLID];
typename std::unordered_map<GID,LID>::iterator last = globalToLocalMap.find(lastGID);
globalToLocalMap.erase(last);
localToGlobalMap.pop_back();
}
template<typename GID,typename LID> inline
bool VelocityMesh<GID,LID>::push_back(const GID& globalID) {
if (size() >= meshParameters[meshID].max_velocity_blocks) return false;
if (globalID == invalidGlobalID()) return false;
std::pair<typename std::unordered_map<GID,LID>::iterator,bool> position
= globalToLocalMap.insert(std::make_pair(globalID,localToGlobalMap.size()));
if (position.second == true) {
localToGlobalMap.push_back(globalID);
}
return position.second;
}
template<typename GID,typename LID> inline
bool VelocityMesh<GID,LID>::push_back(const std::vector<GID>& blocks) {
if (size()+blocks.size() > meshParameters[meshID].max_velocity_blocks) {
std::cerr << "vmesh: too many blocks, current size is " << size();
std::cerr << ", adding " << blocks.size() << " blocks";
std::cerr << ", max is " << meshParameters[meshID].max_velocity_blocks << std::endl;
return false;
}
for (size_t b=0; b<blocks.size(); ++b) {
globalToLocalMap.insert(std::make_pair(blocks[b],localToGlobalMap.size()+b));
}
localToGlobalMap.insert(localToGlobalMap.end(),blocks.begin(),blocks.end());
return true;
}
template<typename GID,typename LID> inline
bool VelocityMesh<GID,LID>::refine(const GID& globalID,std::set<GID>& erasedBlocks,std::map<GID,LID>& insertedBlocks) {
return false;
}
template<typename GID,typename LID> inline
void VelocityMesh<GID,LID>::setGrid() {
globalToLocalMap.clear();
for (size_t i=0; i<localToGlobalMap.size(); ++i) {
globalToLocalMap.insert(std::make_pair(localToGlobalMap[i],i));
}
}
template<typename GID,typename LID> inline
bool VelocityMesh<GID,LID>::setGrid(const std::vector<GID>& globalIDs) {
globalToLocalMap.clear();
for (LID i=0; i<globalIDs.size(); ++i) {
globalToLocalMap.insert(std::make_pair(globalIDs[i],i));
}
localToGlobalMap = globalIDs;
return true;
}
template<typename GID,typename LID> inline
bool VelocityMesh<GID,LID>::setMesh(const size_t& meshID) {
if (meshID >= meshParameters.size()) return false;
this->meshID = meshID;
return true;
}
template<typename GID,typename LID> inline
void VelocityMesh<GID,LID>::setNewSize(const LID& newSize) {
localToGlobalMap.resize(newSize);
}
template<typename GID,typename LID> inline
size_t VelocityMesh<GID,LID>::size() const {
return localToGlobalMap.size();
}
template<typename GID,typename LID> inline
size_t VelocityMesh<GID,LID>::sizeInBytes() const {
return globalToLocalMap.size()*sizeof(GID)
+ localToGlobalMap.size()*(sizeof(GID)+sizeof(LID));
}
template<typename GID,typename LID> inline
void VelocityMesh<GID,LID>::swap(VelocityMesh& vm) {
globalToLocalMap.swap(vm.globalToLocalMap);
localToGlobalMap.swap(vm.localToGlobalMap);
}
} // namespace vmesh
#endif