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vtkSQLiteReader.cxx
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/*=========================================================================
Program: AstroViz plugin for ParaView
Module: $RCSfile: vtkSQLiteReader.cxx,v $
todo:
- debug for wrong input of nsnapshot, resp. input from display snapshot nr is > nsnapshot
- check for tracksdisplay
- maybe more computationonal stuff
- option for estimation good tolerance parameter
bugfixing:
- lost color bug
- check resetting of variables, whats needed, what not..
=========================================================================*/
#include "vtkTimerLog.h"
#include "vtkSQLiteReader.h"
#include "vtkObjectFactory.h"
#include "vtkPolyData.h"
#include "vtkPointData.h"
#include "vtkPoints.h"
#include "vtkCellArray.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkSmartPointer.h"
#include "vtkFloatArray.h"
#include "vtkLine.h"
#include "vtkPolyLine.h"
#include "vtkArrayData.h"
#include "vtkLookupTable.h"
#include "vtkPolyDataMapper.h"
#include "vtkSMProxy.h"
#include "vtkSMProxyProperty.h"
#include "vtkKdTree.h"
#include "vtkTable.h"
#include <vector>
#include <sstream>
vtkCxxRevisionMacro(vtkSQLiteReader, "$Revision: 1.0.1 $");
vtkStandardNewMacro(vtkSQLiteReader);
//----------------------------------------------------------------------------
// Constructor
vtkSQLiteReader::vtkSQLiteReader()
{
this->FileName = 0; // init filename
this->SetNumberOfInputPorts(0); // set no of input files (0 is just fine)
this->db = NULL;
this->dataIsRead = false;
//collect free gui variables into struct, and init
Gui.DisplayColliding = &this->DisplayColliding;
Gui.DisplayMerging = &this->DisplayMerging;
Gui.DisplayInverted = &this->DisplayInverted;
Gui.LowerLimit = &this->LowerLimit;
Gui.UpperLimit = &this->UpperLimit;
*Gui.DisplayColliding = false;
*Gui.DisplayMerging = false;
*Gui.DisplayInverted = false;
*Gui.LowerLimit = 0.001;
*Gui.UpperLimit = 0.0;
//init
/*
Gui.DisplayOnlySelectedData = &(this->DisplayOnlySelectedData);
Gui.DisplaySelected = &(this->DisplaySelected);
Gui.DisplaySelectedSnapshot = &(this->DisplaySelectedSnapshot);
Gui.DisplaySelectedSnapshotNr = &(this->DisplaySelectedSnapshotNr);
Gui.DisplaySelectedTrack = &(this->DisplaySelectedTrack);
Gui.DisplaySelectedTrackNr = &(this->DisplaySelectedTrackNr);
Gui.DisplayCalculated = &(this->DisplayCalculated);
Gui.CalculationImpactParameter = &(this->CalculationImpactParameter);
Gui.DisplayEstimateTolerance = &(this->DisplayEstimateTolerance);
Gui.calcHighlightCollisionPoints = &(this->calcHighlightCollisionPoints);
Gui.calcHighlightTrack = &(this->calcHighlightTrack);
Gui.calcHighlightSnapshot = &(this->calcHighlightSnapshot);
Gui.calcHighlightPoint = &(this->calcHighlightPoint);
Gui.calcHighlightTrackNr = &(this->calcHighlightTrackNr);
Gui.calcHighlightSnapshotNr = &(this->calcHighlightSnapshotNr);
Gui.calcHighlightPointNr = &(this->calcHighlightPointNr);
*Gui.DisplayOnlySelectedData = false;
*Gui.DisplaySelected = false;
*Gui.DisplaySelectedSnapshot = false;
*Gui.DisplaySelectedSnapshotNr = -1;
*Gui.DisplaySelectedTrack = false;
*Gui.DisplaySelectedTrackNr = -1;
*Gui.DisplayCalculated = false;
*Gui.CalculationImpactParameter = 0.0000001;
*Gui.DisplayEstimateTolerance = false;
*/
// init dataInfo (maybee just call this->reset!??)
dataInfo.dataIsRead = false;
dataInfo.nPoints = 0;
dataInfo.nSnapshots = 0;
dataInfo.nTracks = 0;
dataInfo.nSnapshots = 0;
dataInfo.hubble = 0;
/*dataInfo.nSelectedPoints = -1;
dataInfo.nSelectedTracks = -1;
dataInfo.nSelectedSnapshots = -1;
dataInfo.selectedPoints.clear();
dataInfo.selectedSnapshots.clear();
dataInfo.selectedTracks.clear();*/
//init data stuff
for (int i = 0; i<3; i++)
{
Data * actData;
if (i==0){actData = &this->allData;}
if (i==1){actData = &this->selectedData;}
if (i==2){actData = &this->emptyData;}
actData->Position = vtkSmartPointer<vtkPoints>::New();
actData->Velocity = vtkSmartPointer<vtkFloatArray>::New();
actData->Cells = vtkSmartPointer<vtkCellArray>::New();
actData->Tracks = vtkSmartPointer<vtkCellArray>::New();
actData->TrackId = vtkSmartPointer<vtkIntArray>::New();
actData->GId = vtkSmartPointer<vtkIntArray>::New();
actData->SnapId = vtkSmartPointer<vtkIntArray>::New();
actData->Mvir = vtkSmartPointer<vtkFloatArray>::New();
actData->Rvir = vtkSmartPointer<vtkFloatArray>::New();
actData->Vmax = vtkSmartPointer<vtkFloatArray>::New();
actData->Rmax = vtkSmartPointer<vtkFloatArray>::New();
actData->Redshift = vtkSmartPointer<vtkFloatArray>::New();
actData->Time = vtkSmartPointer<vtkFloatArray>::New();
actData->Cv = vtkSmartPointer<vtkFloatArray>::New();
actData->CollisionTypePoint = vtkSmartPointer<vtkUnsignedCharArray>::New();
actData->CollisionTypeTrack = vtkSmartPointer<vtkUnsignedCharArray>::New();
actData->CvAverage = vtkSmartPointer<vtkFloatArray>::New();
actData->RGc = vtkSmartPointer<vtkFloatArray>::New();
actData->Velocity->SetNumberOfComponents(3);
actData->TrackId->SetNumberOfComponents(1);
actData->GId->SetNumberOfComponents(1);
actData->SnapId->SetNumberOfComponents(1);
actData->Mvir->SetNumberOfComponents(1);
actData->Rvir->SetNumberOfComponents(1);
actData->Vmax->SetNumberOfComponents(1);
actData->Rmax->SetNumberOfComponents(1);
actData->Redshift->SetNumberOfComponents(1);
actData->Time->SetNumberOfComponents(1);
actData->Cv->SetNumberOfComponents(1);
actData->CollisionTypePoint->SetNumberOfComponents(1);
actData->CollisionTypeTrack->SetNumberOfComponents(1);
actData->CvAverage->SetNumberOfComponents(1);
actData->RGc->SetNumberOfComponents(1);
actData->Velocity->SetName("Velocity");
actData->TrackId->SetName("TrackId");
actData->GId->SetName("GId");
actData->SnapId->SetName("SnapId");
actData->Mvir->SetName("Mvir");
actData->Rvir->SetName("Rvir");
actData->Vmax->SetName("Vmax");
actData->Rmax->SetName("Rmax");
actData->Redshift->SetName("Redshift");
actData->Time->SetName("Time");
actData->Cv->SetName("Cv");
actData->CollisionTypePoint->SetName("CollisionType of Point");
actData->CollisionTypeTrack->SetName("CollisionType of Track");
actData->CvAverage->SetName("Cv (SnapshotAverage)");
actData->RGc->SetName("Distance from Galactic Center");
}
this->collisionCalc.lowerTolerance = *this->Gui.LowerLimit * *this->Gui.LowerLimit;
this->collisionCalc.upperTolerance = *this->Gui.UpperLimit * *this->Gui.UpperLimit;
this->collisionCalc.isDone = false;
//init calc struct
this->calcInfo.calcDone = false;
this->calcInfo.nCollisions = -1;
this->calcInfo.tolerance = 0;
// inti calcesttol2
this->calcEstTol2 = vtkSmartPointer<vtkFloatArray>::New();
this->calcEstTol2->SetNumberOfComponents(4);
this->calcEstTol2->SetName("CalculationOfTolerance");
}
//----------------------------------------------------------------------------
// Deconstructor
vtkSQLiteReader::~vtkSQLiteReader()
{
}
/*----------------------------------------------------------------------------
reads some head data in, is called directly when loading the file (database), before apply is clicked (presents the infos for the window)
*/
int vtkSQLiteReader::RequestInformation(
vtkInformation* vtkNotUsed(request),
vtkInformationVector** vtkNotUsed(inputVector),
vtkInformationVector* outputVector)
{
vtkSmartPointer<vtkTimerLog> inittimer = vtkSmartPointer<vtkTimerLog>::New();
inittimer->StartTimer();
// Stuff for doing it in parallel, leave it for the moment...
// vtkInformation* outInfo = outputVector->GetInformationObject(0);
// // means that the data set can be divided into an arbitrary number of pieces
// outInfo->Set(vtkStreamingDemandDrivenPipeline::MAXIMUM_NUMBER_OF_PIECES(),-1);
// opening database
if(!this->openDB(this->FileName)){return 0;}
// TODO check for right format
/* implement this, so i can check for right database format in the beginning and omit all the errorhandling code with database queries.. should give some speed..*/
// read in database header
if(!this->ReadHeader()){return 0;}
inittimer->StopTimer();
vtkErrorMacro("Initialisation took: " << inittimer->GetElapsedTime() << " s");
return 1;
}
/*----------------------------------------------------------------------------
is called after clicking apply, reads the actual, selected data
*/
int vtkSQLiteReader::RequestData(vtkInformation*,
vtkInformationVector**,
vtkInformationVector* outputVector)
{
vtkSmartPointer<vtkTimerLog> tottimer = vtkSmartPointer<vtkTimerLog>::New();
tottimer->StartTimer();
vtkPolyData * out = vtkPolyData::GetData(outputVector);
//vtkTable * table = vtkTable::GetData(outputVector);
//table->Initialize();
if (!this->dataInfo.dataIsRead)
// only read if it's not been read before
{
vtkSmartPointer<vtkTimerLog> readtimer = vtkSmartPointer<vtkTimerLog>::New();
readtimer->StartTimer();
readSnapshotInfo();
readSnapshots();
readTracks();
calculateAdditionalData();
this->dataInfo.dataIsRead = true;
readtimer->StopTimer();
vtkErrorMacro(" reading data took: " << readtimer->GetElapsedTime() << " s");
}
if (this->collisionCalc.lowerTolerance != *this->Gui.LowerLimit * *this->Gui.LowerLimit ||
this->collisionCalc.upperTolerance != *this->Gui.UpperLimit * *this->Gui.UpperLimit)
{
this->collisionCalc.lowerTolerance = *this->Gui.LowerLimit * *this->Gui.LowerLimit;
this->collisionCalc.upperTolerance = *this->Gui.UpperLimit * *this->Gui.UpperLimit;
this->collisionCalc.isDone = false;
}
if((!this->collisionCalc.isDone) && (*Gui.DisplayColliding || *Gui.DisplayMerging))
{
vtkSmartPointer<vtkTimerLog> calctimer = vtkSmartPointer<vtkTimerLog>::New();
calctimer->StartTimer();
this->collisionCalc.lowerTolerance = *this->Gui.LowerLimit * *this->Gui.LowerLimit;
this->collisionCalc.upperTolerance = *this->Gui.UpperLimit * *this->Gui.UpperLimit;
findCollisions(&this->collisionCalc);
this->collisionCalc.isDone = true;
calctimer->StopTimer();
vtkErrorMacro(" calculations took: " << calctimer->GetElapsedTime() << " s");
}
vtkSmartPointer<vtkTimerLog> refreshtimer = vtkSmartPointer<vtkTimerLog>::New();
refreshtimer->StartTimer();
Data * actData;
if(!*Gui.DisplayColliding && !*Gui.DisplayMerging && !*Gui.DisplayInverted)
//nothing selected = display all points
{
actData = &this->allData;
}
else if (!*Gui.DisplayColliding && !*Gui.DisplayMerging && *Gui.DisplayInverted)
//dont display anything..
{
actData = &this->emptyData;
}
else
{
actData = &this->selectedData;
generateSelection(&this->collisionCalc, &this->selection); // generates id maps
generatePoints(&this->selection, actData);
generateTracks(&this->selection, actData);
}
out->SetPoints(actData->Position);
out->SetVerts(actData->Cells);
out->SetLines(actData->Tracks);
out->GetPointData()->AddArray(actData->Velocity);
out->GetPointData()->AddArray(actData->GId);
out->GetPointData()->AddArray(actData->SnapId);
out->GetPointData()->AddArray(actData->TrackId);
out->GetPointData()->AddArray(actData->Mvir);
out->GetPointData()->AddArray(actData->Rvir);
out->GetPointData()->AddArray(actData->Vmax);
out->GetPointData()->AddArray(actData->Rmax);
out->GetPointData()->AddArray(actData->Redshift);
out->GetPointData()->AddArray(actData->Time);
out->GetPointData()->AddArray(actData->Cv);
out->GetPointData()->AddArray(actData->CvAverage);
out->GetPointData()->AddArray(actData->CollisionTypePoint);
out->GetPointData()->AddArray(actData->CollisionTypeTrack);
out->GetPointData()->AddArray(actData->RGc);
refreshtimer->StopTimer();
vtkErrorMacro(" refreshing took: " << refreshtimer->GetElapsedTime() << " s");
//this->reset();
/*
if(*this->Gui.DisplaySelected)
{
this->dataInfo.selectedSnapshots.clear();
this->dataInfo.nSelectedSnapshots = -1;
this->dataInfo.selectedTracks.clear();
this->dataInfo.nSelectedTracks = -1;
if(*this->Gui.DisplaySelectedSnapshot)
{
this->dataInfo.selectedSnapshots.push_back(*this->Gui.DisplaySelectedSnapshotNr);
this->dataInfo.nSelectedSnapshots = 1;
}
if(*this->Gui.DisplaySelectedTrack)
{
this->dataInfo.selectedTracks.push_back(*this->Gui.DisplaySelectedTrackNr);
this->dataInfo.nSelectedTracks = 1;
}
}
else if (*this->Gui.DisplayCalculated)
{
if (this->calcInfo.tolerance != *this->Gui.CalculationImpactParameter * *this->Gui.CalculationImpactParameter)
{
this->calcInfo.calcDone = false;
}
if(!this->calcInfo.calcDone)
{
doCalculations(*this->Gui.CalculationImpactParameter * *this->Gui.CalculationImpactParameter,3); //fills dataInfo.selected* fields
this->calcInfo.calcDone = true;
this->calcInfo.tolerance = *this->Gui.CalculationImpactParameter * *this->Gui.CalculationImpactParameter;
}
//else{vtkErrorMacro("Skipping recalculation...");}
this->dataInfo.nSelectedPoints = this->calcInfo.nSelectedPoints;
this->dataInfo.nSelectedTracks = this->calcInfo.nSelectedTracks;
this->dataInfo.nSelectedSnapshots = -1;
this->dataInfo.selectedPoints.clear();
this->dataInfo.selectedPoints = this->calcInfo.selectedPoints;
this->dataInfo.selectedTracks.clear();
this->dataInfo.selectedTracks = this->calcInfo.selectedTracks;
this->dataInfo.selectedSnapshots.clear();
}
else if (*this->Gui.DisplayEstimateTolerance)
{
//used this for approximation of parameter...
this->calcTolerance();
out->GetPointData()->AddArray(this->calcEstTol2);
}*/
/*
Data * actData;
if (*this->Gui.DisplayOnlySelectedData)
{
if (*this->Gui.DisplaySelected && !*this->Gui.DisplaySelectedSnapshot && !*this->Gui.DisplaySelectedTrack)
{
vtkErrorMacro("Please select at least one track or Snapshot to be displayed.\nI'm settig snapshot 0 to be displayed for you..");
this->dataInfo.selectedSnapshots.clear();
this->dataInfo.nSelectedSnapshots = 1;
this->dataInfo.selectedSnapshots.push_back(0);
this->dataInfo.selectedTracks.clear();
this->dataInfo.nSelectedTracks = -1;
}
this->generateIdMap();
this->generatePoints();
this->generateTracks();
this->generateColors();
actData = &this->selectedData;
//out->SetPoints(this->selectedData.Position);
//out->SetVerts(this->selectedData.Cells);
//out->SetLines(this->selectedData.Tracks);
//out->GetPointData()->AddArray(this->selectedData.Velocity);
//out->GetPointData()->AddArray(this->selectedData.GId);
//out->GetPointData()->AddArray(this->selectedData.SnapId);
//out->GetPointData()->AddArray(this->selectedData.Rvir);
//out->GetPointData()->AddArray(this->selectedData.TrackId);
//out->GetPointData()->SetScalars(this->selectedData.Colors);
}
else
{
this->generateColors();
actData = &this->allData;
//out->SetPoints(this->allData.Position);
//out->SetVerts(this->allData.Cells);
//out->SetLines(this->allData.Tracks);
//out->GetPointData()->AddArray(this->allData.Velocity);
//out->GetPointData()->AddArray(this->allData.GId);
//out->GetPointData()->AddArray(this->allData.SnapId);
//out->GetPointData()->AddArray(this->allData.RVir);
//out->GetPointData()->AddArray(this->allData.TrackId);
//out->GetPointData()->SetScalars(this->allData.Colors);
}
*/
// trying with luts, but ddoesnt work as expected...
/*
vtkSmartPointer<vtkLookupTable> lut = vtkSmartPointer<vtkLookupTable>::New();
lut->SetValueRange(0.5,1);
lut->SetHueRange(0.9,1.0);
lut->Build();
double r [] = {0.0, 9.0};
lut->SetTableRange(r);
lut->Modified();
//lut->SetNumberOfTableValues(9);
//lut->Build();
//lut->SetTableValue(2,1,0,0,1);
//lut->SetNumberOfColors(24);
//lut->SetHueRange(0,1.5);
//lut->SetSaturationRange(1,1);
//lut->SetValueRange(0,3.14);
//lut->SetScale(24);
//lut->Build();
//double col[3];
//lut->GetColor(2,col);
//vtkErrorMacro(":" << col[1]);
actData->Rvir->SetLookupTable(lut);
vtkSmartPointer<vtkLookupTable> lut2 = vtkSmartPointer<vtkLookupTable>::New();
//lut2->SetTableRange(0.5,1);
//lut2->SetSaturationRange(1,1);
//lut2->SetHueRange(0.5,0.75);
//lut2->SetValueRange(0,3.14);
//lut2->SetAlphaRange(1,1);
//lut2->SetNumberOfTableValues(60);
//lut2->Build();
lut2->SetTableRange(0.0,3.0);
double * range;
range = lut2->GetRange();
*(range) = 0.00;
*(range+1) = 3.0;
//lut2->SetNumberOfTableValues(4);
//lut2->SetTableValue(0,1,0,0);
//lut2->SetTableValue(1,1,1,0);
//lut2->SetTableValue(2,1,1,1);
//lut2->SetTableValue(3,0,0,1);
lut2->Build();
lut2->ForceBuild();
actData->SnapId->SetLookupTable(lut);
//out->GetCellData()->get
//lut2->Print(
//lut2->PrintSelf(cerr, vtkIndent(0)) ;
*/
tottimer->StopTimer();
vtkErrorMacro("Total elapsed time: " << tottimer->GetElapsedTime() << " s");
return 1;
}
/*----------------------------------------------------------------------------
opens the database
arguments:
char * filename: path to db
returns:
int errorcode (1 =ok)
sets:
sqlite3* db: database handle
*/
int vtkSQLiteReader::openDB(char* filename)
{
if(!filename) //check for existing filename
{
vtkErrorMacro("A FileName must be specified.");
return 0;
}
if (sqlite3_open(this->FileName, &db)) // open db, returns SQLITE_OK if successful
{
vtkErrorMacro("Can't open database: " + *sqlite3_errmsg(db));
return 0;
}
//vtkErrorMacro("opened successfully: " << this->FileName)
return 1;
}
/*----------------------------------------------------------------------------
Demonstration of reading in particles
*/
int vtkSQLiteReader::RequestDataDemo(vtkInformationVector* outputVector)
{
//init vars
// set up the sql stuff
vtkStdString sql_query; // sql query
sqlite3_stmt *res; // result of sql query
//int sql_count; // no of columns from the query
const char *tail; // ???
int sql_error; // return value of sql query
// sets up output
vtkPolyData* output = vtkPolyData::GetData(outputVector);
//sets up the output of the points
vtkSmartPointer<vtkPoints> newPoints = vtkSmartPointer<vtkPoints>::New();
output->SetPoints(newPoints);
// set up the vertices and cells, for direct display in paraview , not needed right now
vtkSmartPointer<vtkCellArray> vertices = vtkSmartPointer<vtkCellArray>::New();
output->SetVerts(vertices);
// Prepare the query
sql_query = "SELECT * FROM stat WHERE gid=1";
//sql_query = this->GetSqlQuery();
// Query the db
sql_error = sqlite3_prepare_v2(db,
sql_query,
1000, &res, &tail);
if (sql_error != SQLITE_OK)
{
vtkErrorMacro("Error with sql query! Error: " << sql_error);
return 0;
}
// --------------------------
// version 1:
/* uses insertpoint, possibly slow because everytime range check */
/*
int i = 0;
while (sqlite3_step(res) == SQLITE_ROW)
{
newPoints->InsertPoint(i,
sqlite3_column_double(res, 4),
sqlite3_column_double(res, 5),
sqlite3_column_double(res, 6));
/*vtkErrorMacro("coords: "
<< sqlite3_column_double(res, 4) << ";"
<< sqlite3_column_double(res, 5) << ";"
<< sqlite3_column_double(res, 6) << ";");
i++;
}
newPoints->Squeeze();
*/
/* --------------------------
version 2:
saves data first in simple datastructre
check for speed differences with version 1.. possibly this is
easier to implent parallelly. already set sqlite3 to use multiply
threads (check sqlite3.c: SQLITE_THREADSAFE 2), see doc here:
(http://www.sqlite.org/threadsafe.html) and possibly this disc:
(http://osdir.com/ml/sqlite-users/2010-03/msg00209.html) for help
later on.
-------------------------- */
//vtkErrorMacro("threadsafe: " << sqlite3_threadsafe()); // display threading mode
// create temp data storage structre (simple list)
struct tmp_pnt //elements of the list
{
double data[3]; //data array
tmp_pnt* pnext; //pointer to next point in list
};
/* should first store the list itself, but i use 2 pointers and a counter directly instead.. could be deleted..
struct tmp_list //the list itself
{
tmp_pnt * pfirst; //pointer to first element of list
tmp_pnt * plast; //pointer to last element of list
int count;
};
*/
//statt struct einfach direkt 2 pointer brauchen...
tmp_pnt * pfirst; //pointer to first element of list
tmp_pnt * plast; //pointer to last element of list
int count = 0;
// add a first dummy point
tmp_pnt * firstpnt = new tmp_pnt;
pfirst = firstpnt;
plast = firstpnt;
while (sqlite3_step(res) == SQLITE_ROW)
{
tmp_pnt * pnt = new tmp_pnt;
//double (*data)[3] = new double;
double data[3] = {sqlite3_column_double(res, 4),
sqlite3_column_double(res, 5),
sqlite3_column_double(res, 6)};
pnt->data[0] = data[0];
pnt->data[1] = data[1];
pnt->data[2] = data[2];
pnt->pnext = NULL;
plast->pnext = pnt;
plast = pnt;
//vtkErrorMacro("read index: " << count << " cords: " << (pnt->data)[0]);
count++;
}
//vtkErrorMacro("count tot: " << count);
newPoints->SetNumberOfPoints(count);
tmp_pnt * actpnt = pfirst->pnext;
for (int n = 0; n < count; n++)
{
newPoints->SetPoint(n,(actpnt->data));
// for debugging
//double (* pnt1)[3] = &(actpnt->data);
//vtkErrorMacro("index: " << n << " cords: " << **pnt1 <<" "<< *(*(pnt1)+1) <<" "<< *(*(pnt1)+2));
actpnt = actpnt->pnext;
}
newPoints->Squeeze();
// --------------------------
// Create the vertices (one point per vertex, for easy display)
vtkIdType N = newPoints->GetNumberOfPoints();
//vtkErrorMacro("No of Points: " << N);
vtkIdType *cells = vertices->WritePointer(N, N*2);
for (vtkIdType i=0; i<N; ++i) {
cells[i*2] = 1;
cells[i*2+1] = i;
}
// cleaning up mem
//TODO Clean up everything...
sqlite3_close(db); //closing db handle (maybe do this earlier??)
return 1;
}
/*----------------------------------------------------------------------------
Converts a Integer to a string
*/
vtkStdString vtkSQLiteReader::Int2Str(int number)
{
std::stringstream ss;//create a stringstream
ss << number;//add number to the stream
return ss.str();//return a string with the contents of the stream
}
/*----------------------------------------------------------------------------
Reads the header data from db
assumes:
opened database, db set
arguments:
vtkInformationVector Output information
returns:
int errorcode (1 =ok)
sets:
numSnap Number of snapshots
*/
int vtkSQLiteReader::ReadHeader()
{
// set up the sql stuff
sqlite3_stmt *res; // result of sql query
const char *tail; // ???
int sql_error; // return value of sql query
vtkStdString sql_query = "SELECT * FROM header";
sql_error = sqlite3_prepare_v2(db,sql_query,1000, &res, &tail);
if (sql_error != SQLITE_OK)
{
vtkErrorMacro("Error with sql query! Error: " << sql_error);
return 0;
}
if (sqlite3_step(res) == SQLITE_ROW) //there should be only one row..
{
this->dataInfo.hubble = sqlite3_column_int(res, 7);
//this->dataInfo.nSnapshots = sqlite3_column_int(res, 9);
// TODO here more data can be read in..
}
return 1;
}
/*----------------------------------------------------------------------------
-- NOT USED --
Sets up an SQL Query
assumes:
opened database, db set
arguments:
vtkStdString sql_query the query command
sqlite3_stmt *res pointer to result
returns:
int errorcode (1 =ok)
*/
int vtkSQLiteReader::SQLQuery(vtkStdString sql_query, sqlite3_stmt * res)
{
const char *tail; // ???
int sql_error; // return value of sql query
sql_error = sqlite3_prepare_v2(this->db, sql_query, 1000, &res, &tail);
if (sql_error != SQLITE_OK)
{
vtkErrorMacro("Error with sql query! Error: " << sql_error);
return 0;
}
return 1;
}
/*----------------------------------------------------------------------------
reads the snapshots in (reads all the points, and the according data, generates the cells)
assumes:
db set and openend
arguments:
none
sets:
this->Position
this->Velocity
this->Cells
this->Qid
this->SnapId
this->RVir
this->SnapInfo stores information about the snapshots
returns:
int errorcode (1 = ok)
*/
int vtkSQLiteReader::readSnapshots()
{
// prepare the variables
/*
this->Position = vtkSmartPointer<vtkPoints>::New();
this->Velocity = vtkSmartPointer<vtkFloatArray>::New();
this->Cells = vtkSmartPointer<vtkCellArray>::New();
this->GId = vtkSmartPointer<vtkIdTypeArray>::New();
this->SnapId = vtkSmartPointer<vtkIdTypeArray>::New();
this->RVir = vtkSmartPointer<vtkFloatArray>::New();
this->Velocity->SetNumberOfComponents(3);
this->GId->SetNumberOfComponents(1);
this->SnapId->SetNumberOfComponents(1);
this->RVir->SetNumberOfComponents(1);
this->Velocity->SetName("Velocity");
this->GId->SetName("GId");
this->SnapId->SetName("SnapId");
this->RVir->SetName("RVir");
*/
//this->SnapInfo.clear();
// sql stuff
vtkStdString sql_query; // sql query
sqlite3_stmt *res; // result of sql query
const char *tail; // ???
int sql_error; // return value of sql query
// Prepare the query
sql_query = "SELECT * FROM stat ORDER BY snap_id";
// Query the db
sql_error = sqlite3_prepare_v2(db, sql_query, 1000, &res, &tail);
if (sql_error != SQLITE_OK)
{
vtkErrorMacro("Error with sql query! Error: " << sql_error);
return 0;
}
int count = 0;
int snapcount = 0;
int snap_id=0;
int old_snap_id = 0;
int GId = 0;
int offset = 0;
double x,y,z;
double cv, vmax, rmax;
std::vector<int> pid;
SnapshotInfo *actSnap;
double redshift = this->SnapInfo.at(snap_id).redshift;
double hubble = 70.4;//this->dataInfo.hubble;
while (sqlite3_step(res) == SQLITE_ROW)
{
old_snap_id = snap_id;
snap_id = sqlite3_column_double(res, 0);
if (snap_id != old_snap_id)
{
actSnap = &this->SnapInfo.at(old_snap_id);
actSnap->Offset = offset;
actSnap->lenght = snapcount;
actSnap->PointId = pid;
pid.clear();
snapcount = 0;
offset = count;
redshift = this->SnapInfo.at(snap_id).redshift;
}
GId = sqlite3_column_double(res, 1);
//filter out any points with coordinates = 0
x = sqlite3_column_double(res, 4);
y = sqlite3_column_double(res, 5);
z = sqlite3_column_double(res, 6);
if(x==0&&y==0&&z==0)
{
pid.push_back(-1);
continue;
}
this->allData.Position->InsertNextPoint(x,y,z);
this->allData.Velocity->InsertNextTuple3(
sqlite3_column_double(res, 7),
sqlite3_column_double(res, 8),
sqlite3_column_double(res, 9));
this->allData.GId->InsertNextTuple1(GId);
this->allData.SnapId->InsertNextTuple1(snap_id);
this->allData.Mvir->InsertNextTuple1(sqlite3_column_double(res, 10));
this->allData.Rvir->InsertNextTuple1(sqlite3_column_double(res, 11));
vmax = sqlite3_column_double(res, 12);
this->allData.Vmax->InsertNextTuple1(vmax);
rmax = sqlite3_column_double(res, 13);
this->allData.Rmax->InsertNextTuple1(rmax);
this->allData.Redshift->InsertNextTuple1(redshift);
this->allData.Time->InsertNextTuple1(1.0/(1.0+redshift));
//compute additional stuff
cv = 2.0 * (vmax / (hubble * rmax)) * (vmax / (hubble * rmax));
this->allData.Cv->InsertNextTuple1(cv);
pid.push_back(snapcount);
snapcount++;
count++;
}
actSnap = &this->SnapInfo.at(snap_id);
actSnap->Offset = offset;
actSnap->lenght = snapcount;
actSnap->PointId = pid;
//this->nTracks3 = (int)10;
//vtkErrorMacro("No of tracks: " << this->nTracks3);
this->dataInfo.nSnapshots = (int)this->SnapInfo.size();
vtkErrorMacro("No of snapshots: " << this->dataInfo.nSnapshots);
this->dataInfo.nPoints = count;
vtkErrorMacro("No of particles: " << this->dataInfo.nPoints);
// Create the vertices (one point per vertex, for easy display)
vtkIdType N = this->allData.Position->GetNumberOfPoints();
vtkIdType *cells = this->allData.Cells->WritePointer(N, N*2);
for (vtkIdType i=0; i<N; ++i)
{
cells[i*2] = 1;
cells[i*2+1] = i;
}
// init other field data
this->allData.CollisionTypePoint->SetNumberOfTuples(this->dataInfo.nPoints);
this->allData.CollisionTypePoint->FillComponent(0,0);
this->allData.CollisionTypeTrack->SetNumberOfTuples(this->dataInfo.nPoints);
this->allData.CollisionTypeTrack->FillComponent(0,0);
this->dataIsRead = true;
return 1;
}
/*----------------------------------------------------------------------------
reads the tracks, generates the lines
assumes:
db set and openend
arguments:
none
sets:
this->Tracks
this->TrackId
returns:
int errorcode (1 = ok)
*/
int vtkSQLiteReader::readTracks(){
this->allData.TrackId->SetNumberOfTuples(this->dataInfo.nPoints);
//init everything to -1 (-1: halo belongs to no track)
for (int i = 0; i<this->dataInfo.nPoints; i++)
{
this->allData.TrackId->InsertTuple1(i,-1);
}
vtkStdString sql_query; // sql query
sqlite3_stmt *res; // result of sql query
const char *tail; // ???
int sql_error; // return value of sql query
int snap_id;
int GId, pid;
int offset;
bool goOn = true;
bool validtrack = false;
int TrackNo = 0;
this->dataInfo.nTracks = 0;
while (goOn)
{
sql_query = "SELECT * FROM tracks WHERE id=" + Int2Str(TrackNo) + " ORDER BY snap_id";
sql_error = sqlite3_prepare_v2(db, sql_query, 1000, &res, &tail);
if (sql_error != SQLITE_OK)
{
vtkErrorMacro("Error with sql query! Error: " << sql_error + sql_query);
return 0;
}
vtkSmartPointer<vtkPolyLine> nextLine = vtkSmartPointer<vtkPolyLine>::New();
Track tmpTrack; // for filling in the trackinfo struct
tmpTrack.PointsIds.resize(this->dataInfo.nSnapshots, -1);
tmpTrack.nPoints = 0;
while (sqlite3_step(res) == SQLITE_ROW)
{
validtrack = true;
snap_id = sqlite3_column_int(res, 1);
GId = sqlite3_column_int(res, 2);