5.6.4 Initializing

There are a few programs with which orbits can be initialized:

• ccdmath is the most straightforward program. Here is an example of creating an image from scratch:

  % ccdmath out=ccd1 fie=%x+%y size=2,4
  Generating a map from scratch
  
  % tsf ccd1
  set Image
    set Parameters
      int Nx 2
      int Ny 4
      int Nz 1
      double Xmin 0.00000
      double Ymin 0.00000
      double Zmin 0.00000
      double Dx 1.00000
      double Dy 1.00000
      double Dz 1.00000
      double MapMin -4.00000
      double MapMax 0.00000
      int BeamType 0
      double Beamx 0.00000
      double Beamy 0.00000
      double Beamz 0.00000
      double Time 0.00000
      char Storage[5] "CDef"
    tes
    set Map
      double MapValues[2][4] -4.00000 -3.00000 -2.00000 -1.00000
        -3.00000 -2.00000 -1.00000 0.00000
    tes
  tes
  
  % ccdprint ccd1 x= y= label=x,y
   Y\X 0 1
   
  3  -1 0
  2  -2 -1
  1  -3 -2
  0  -4 -3
  

• snapgrid converts a snapshot to an image.

• fitsccd converts a FITS file to an image. The inverse of this, ccdfits also exists.

nx,ny	->    data[nx][ny]

e.g.	ccdmath out=ccd1   nx=10 ny=5
	gives       double MapValues[10][5]  


ccdmath "" - %x 3,2 | tsf - margin=100 | grep MapVal
	MapValues[3][2] -2.00000 -2.00000 -1.00000 -1.00000 0.00000 0.00000
ccdmath "" - %y 3,2 | tsf - margin=100 | grep MapVal
	MapValues[3][2] -2.00000 -1.00000 -2.00000 -1.00000 -2.00000 -1.00000