Class PointDataProvider

java.lang.Object

gaiasky.data.group.PointDataProvider

All Implemented Interfaces:

IParticleGroupDataProvider

public class PointDataProvider
extends Object
implements IParticleGroupDataProvider

Generic data provider for point clouds that reads cartesian positions (XYZ) from a text file. Consider using BinaryPointDataProvider instead, which includes many more features and is more compact.

Constructor Summary

Constructors

Constructor	Description
PointDataProvider()

Method Summary

Modifier and Type	Method	Description
List<IParticleRecord>	loadData(InputStream is, double factor, Runnable preCallback, BiConsumer<Long,Long> updateCallback, Runnable postCallback)	Loads the data applying a factor.
List<IParticleRecord>	loadData(String file, double factor, Runnable preCallback, BiConsumer<Long,Long> updateCallback, Runnable postCallback)	Loads the data applying a factor.
List<IParticleRecord>	loadData(String file, Runnable preCallback, BiConsumer<Long,Long> updateCallback, Runnable postCallback)	Loads the data as it is.
List<IParticleRecord>	loadDataMapped(String file, double factor, Runnable preCallback, BiConsumer<Long,Long> updateCallback, Runnable postCallback)	Loads the data applying a factor using a memory mapped file for improved speed.
void	setFileNumberCap(int cap)	Sets a cap on the number of files to load.
void	setProviderParams(Map<String,Object> params)	Set provider parameters as a map.
void	setStarNumberCap(int cap)	Sets the maximum number of stars to be processed per file.
void	setTransformMatrix(Matrix4D matrix)	Sets a transform matrix to apply to all data points.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface IParticleGroupDataProvider

isUniformEpoch

Modifier and Type	Method	Description
default boolean	isUniformEpoch()	Do all particles in the group have the same epoch?

Constructor Details

PointDataProvider

public PointDataProvider()

Method Details

loadData

public List<IParticleRecord> loadData(String file,
 Runnable preCallback,
 BiConsumer<Long,Long> updateCallback,
 Runnable postCallback)

Description copied from interface: IParticleGroupDataProvider

Loads the data as it is.

Specified by:

loadData in interface IParticleGroupDataProvider

Parameters:

file - The file to load.

preCallback - Callback to run before loading starts.

updateCallback - Callback to run during loading, for every object. Contains the current object number and the total number.

postCallback - Callback to run after loading is done.

Returns:

The array of particle records.

loadData

public List<IParticleRecord> loadData(String file,
 double factor,
 Runnable preCallback,
 BiConsumer<Long,Long> updateCallback,
 Runnable postCallback)

Description copied from interface: IParticleGroupDataProvider

Loads the data applying a factor.

Specified by:

loadData in interface IParticleGroupDataProvider

Parameters:

file - The file to load.

factor - Factor to apply to the positions.

preCallback - Callback to run before loading starts.

updateCallback - Callback to run during loading, for every object. Contains the current object number and the total number.

postCallback - Callback to run after loading is done.

Returns:

The array of particle records.

loadData

public List<IParticleRecord> loadData(InputStream is,
 double factor,
 Runnable preCallback,
 BiConsumer<Long,Long> updateCallback,
 Runnable postCallback)

Description copied from interface: IParticleGroupDataProvider

Loads the data applying a factor.

Specified by:

loadData in interface IParticleGroupDataProvider

Parameters:

is - Input stream to load the data from.

factor - Factor to apply to the positions.

preCallback - Callback to run before loading starts.

updateCallback - Callback to run during loading, for every object. Contains the current object number and the total number.

postCallback - Callback to run after loading is done.

Returns:

The array of particle records.

setFileNumberCap

public void setFileNumberCap(int cap)

Description copied from interface: IParticleGroupDataProvider

Sets a cap on the number of files to load. Set to negative for unlimited.

Specified by:

setFileNumberCap in interface IParticleGroupDataProvider

Parameters:

cap - The file cap number.

setStarNumberCap

public void setStarNumberCap(int cap)

Description copied from interface: IParticleGroupDataProvider

Sets the maximum number of stars to be processed per file. Set to negative for unlimited.

Specified by:

setStarNumberCap in interface IParticleGroupDataProvider

Parameters:

cap - The star cap number.

setProviderParams

public void setProviderParams(Map<String,Object> params)

Description copied from interface: IParticleGroupDataProvider

Set provider parameters as a map.

Specified by:

setProviderParams in interface IParticleGroupDataProvider

Parameters:

params - The parameters map.

setTransformMatrix

public void setTransformMatrix(Matrix4D matrix)

Description copied from interface: IParticleGroupDataProvider

Sets a transform matrix to apply to all data points.

Specified by:

setTransformMatrix in interface IParticleGroupDataProvider

Parameters:

matrix - The transform matrix.

loadDataMapped

public List<IParticleRecord> loadDataMapped(String file,
 double factor,
 Runnable preCallback,
 BiConsumer<Long,Long> updateCallback,
 Runnable postCallback)

Description copied from interface: IParticleGroupDataProvider

Loads the data applying a factor using a memory mapped file for improved speed.

Specified by:

loadDataMapped in interface IParticleGroupDataProvider

Parameters:

file - The file to load.

factor - Factor to apply to the positions.

preCallback - Callback to run before loading starts.

updateCallback - Callback to run during loading, for every object. Contains the current object number and the total number.

postCallback - Callback to run after loading is done.

Returns:

The array of particle records.