Package gaiasky.data.octreegen

Class ParticleDataBinaryIO

java.lang.Object
gaiasky.data.octreegen.ParticleDataBinaryIO
public class ParticleDataBinaryIO
extends java.lang.Object
Loads and writes particle data to/from our own binary format. The format is defined as follows. The operations are based on abstract position entities, so this is not suitable for loading star groups or particle groups.
  • 32 bits (int) with the number of stars, starNum repeat the following starNum times (for each star)
  • 32 bits (int) - The the length of the name, or nameLength
  • 16 bits * nameLength (chars) - The name of the star
  • 32 bits (float) - appmag
  • 32 bits (float) - absmag
  • 32 bits (float) - colorbv
  • 32 bits (float) - r
  • 32 bits (float) - g
  • 32 bits (float) - b
  • 32 bits (float) - a
  • 32 bits (float) - ra [deg]
  • 32 bits (float) - dec [deg]
  • 32 bits (float) - distance [u]
  • 64 bits (double) - x [u]
  • 64 bits (double) - y [u]
  • 64 bits (double) - z [u]
  • 32 bits (float) - mualpha [mas/yr]
  • 32 bits (float) - mudelta [mas/yr]
  • 32 bits (float) - radvel [km/s]
  • 32 bits (float) - pmx [u/yr]
  • 32 bits (float) - pmy [u/yr]
  • 32 bits (float) - pmz [u/yr]
  • 64 bits (long) - id
  • 32 bits (int) - HIP
  • 32 bits (int) - TYClength
  • 16 bits (char) * TYClength - TYC
  • 8 bits (byte) - catalogSource
  • 64 bits (long) - pageId
  • 32 bits (int) - particleType

  • Constructor Summary

    Constructors
    Constructor Description
    ParticleDataBinaryIO()  

  • Method Summary

    Modifier and Type Method Description
    com.badlogic.gdx.utils.Array<SceneGraphNode> readParticles​(java.io.InputStream in)  
    void writeParticles​(com.badlogic.gdx.utils.Array<SceneGraphNode> particles, java.io.OutputStream out)  

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • ParticleDataBinaryIO

      public ParticleDataBinaryIO()

  • Method Details

    • writeParticles

      public void writeParticles​(com.badlogic.gdx.utils.Array<SceneGraphNode> particles, java.io.OutputStream out)

    • readParticles

      public com.badlogic.gdx.utils.Array<SceneGraphNode> readParticles​(java.io.InputStream in) throws java.io.FileNotFoundException
      Throws:
      java.io.FileNotFoundException