Sample Plots and QDP Files

This appendix contains several sample figures that were created with the QDP program. In all the figures, the name of the QDP file used to generate the figure is displayed in the top left corner. For the first figure this name is XANADU:[PLOT.QDP]SPIRAL.QDP. It is possible to reproduce this figure by using:

$ QDP XANADU:[PLOT.QDP]SPIRAL

For reader convenience, the top section of each QDP file is listed. In cases where the QDP also uses a PLT command file, the top section of the .PCO file is also listed. A careful comparison of each figure and the PLT commands used to generate it, will illustrate the actions of many PLT commands.

The SPIRAL.QDP file contains:

 1.0000  0.0000
-1.0000  0.0000
 0.9988  0.0491
-0.9988 -0.0491
 0.9952  0.0980
-0.9952 -0.0980
 0.9892  0.1467
-0.9892 -0.1467
 0.9808  0.1951
-0.9808 -0.1951
 0.9700  0.2430
-0.9700 -0.2430
 0.9569  0.2903
-0.9569 -0.2903
 0.9415  0.3369
-0.9415 -0.3369
 0.9239  0.3827
-0.9239 -0.3827
 0.9040  0.4276
-0.9040 -0.4276
    "       "

The FIG1.QDP file contains:

CS  1.3
GAP 0.0
LAB 1 "(1) A SIMPLE LABEL"
LAB 2 P -0.80 -0.50 J L RO 90 CS 2 "\FI(2) ROTATED"
LAB 3 P .6 -.5  CS 2 CO 3 RO 45 "(3) At any angle"
LAB 4 P -1  -1 LI 30 CS 2 CO 4 "(4) The bottom corner"
LAB 5 P -.6 0 LI 45 CS 2 CO 5 "(5) Position (-0.6,0.0)"
LAB 6 P 0. .75 MA 10 CS 1.5 CO 6 "(6) Label Markers"
LAB 7 P 0. .50 MA 10 CS 1.5 CO 6 J R "(7) Right justified"
LAB 8 P -.50 -.25 LI 0 LS 3 CO 8 CS 2 "(8) A Line Label"
LAB 9 P -.50 -.5  LI 0 LS 4 CO 8 CS 2 "(9) any style"
!
-1      -1
 1      -1
 1       1

The FIG2.QDP file contains:

READ SERR 1 2 3 4 5
@"XANADU,PLOT/QDP,FIG2"      ! See PLT Command File "FIG2.PCO"
!
440.02 0.75  0.749 2.8E-2  1.41 5.2E-02  284.3 38.0  0.1445/.185 6.0E-03/.185  62.7
      "           "            "              "                 "                "

COL  OFF 1,6
CSIZ 1.3
FONT RO
LAB  1 CS 1.3 CEN BOT JUS RIG VP .9 .91 "\FIEXOSAT \FRME"
LAB  RO
LAB  T  X-ray Burst from Cir X-1
LAB  G1 Time (sec)
R    Y1 430 540
LAB  G2 Flux
R    Y2 .01 2
LAB  G3 Temp
R    Y3 .5 4
LAB  G4 R\U2
R    Y4 30 800
LAB  G5 L/L\DEd
R    Y5 .02 3
LAB  G6 Chi
LAB  POS Y 2.5
LOG  Y
P    V
TIM  OFF
VIEW .15,,.90

The FIG3.QDP file contains:

! FOLD.  Scatter errors.
! Start time(   82135.4), End time(   94966.3)
! Period( 4.827641200D+00), Phase 0( 4.000D-01), DPDOT( 0.000D+00)
READ SERR 1
XAXIS LIN  3.9062500E-03  7.8125000E-03
@"XANADU,PLOT/QDP,FIG3"      ! See PLT Command File "FIG3.PCO"
!
   249.0985       1.712956
   248.0650       1.642315
   245.0948       1.686881
   246.7742       1.685483
   245.0568       1.691913
      "               "

CSIZ 1.2
FONT RO
LAB  OT  Cen X-3
LAB  T   Spline fit to Pulse Profile
LAB  X   Pulse Phase
LAB  Y   Rate (ct/sec)
LAB  PAR OFF
MOD  @"XANADU,PLOT/QDP,FIG3"
R    X   0 1
TIM  OFF
VIEW .15 .15

The FIG4.QDP file contains:

READ SERR 1 2
@"XANADU,PLOT/QDP,FIG4"      ! See PLT Command File "FIG4.PCO"
!
 1.00  0.50 -1.E-01  3.1
 2.00  0.50 -0.4  3.1
 3.00  0.50 -1.9  3.1
 4.00  0.50  2.8  3.1
 5.00  0.50  3.7  3.1
 6.00  0.50  0.3  3.1
 7.00  0.50  0.2  3.1
 8.00  0.50  5.5  3.1
 9.00  0.50 -4.7  3.1
     "          "

The above QDP file calls the PLT command file FIG4.PCO:

SKIP SING
LINE ON   1
MARK   17 ON   1
LINE ON   2
MARK   21 ON   2
MARK SIZE  1.5
LAB  1 MAR 17 JUS Lef 
LAB  1 POS 36 45 "High Energy"
LAB  2 MAR 21 JUS Lef 
LAB  2 POS 36 41 "Low Energy"
LAB  T  CROSS-SCAN PROFILES
LAB  X  RA PIXEL
LAB  Y  Background Subtracted Intensity (kJy Sr\u-1)
TIME OFF

The FIG5.QDP file contains:

skip on
@"xanadu,plot/qdp,fig5"        ! See PLT Command File "FIG5.PCO"
  -7.300000     -0.6800003
  -7.180000     -0.4200001
  -7.060000     -0.1800003
  -6.940000      6.0000420E-02
  -6.820000      0.3000002
  -6.700000      0.5400000
  -6.580000      0.7700005
  -6.460000       1.010000
  -6.340000       1.240000
  -6.220000       1.450000
  -6.100000       1.750000
       "              "

CSIZ 1.3
FONT ROMAN
LAB  X Log Photon Energy 
LAB  Y Intensity ( keV s\u-1\d cm\u-2\d sr\u-1\d keV\u-1\d )
LINE ON 1
MARK 3 ON 2
MARK SIZE 2.0
R   -2 1 -3 1
TIME OFF

The FIG6.QDP file contains:

COL OFF 1..999
CON LEV -1. -.5 0. .5 1.  LS 4 4 1 1 1   LW 1 2 3 4 5
XAX LIN   1 1
YAX LIN   1 1
R   1 30 1 30
!
 .748  .795  .826  .842  .841  .823  .788  .734  .664  .577  .474  .358  .228-
   8.700E-02 -6.300E-02 -.220 -.383 -.548 -.713 -.876 -1.035 -1.187 -1.331-
  -1.464 -1.585 -1.692 -1.783 -1.859 -1.917 -1.958
 .499  .574  .639  .691  .731  .755  .764  .756  .731  .689  .631  .555  .464-
   .358  .239  .107 -3.400E-02 -.184 -.340 -.500 -.662 -.823 -.981 -1.135-
  -1.281 -1.418 -1.545 -1.658 -1.758 -1.842
 .281  .364  .442  .513  .573  .622  .658  .681  .688  .679  .654  .613  .556-
   .483  .395  .292  .177  5.000E-02 -8.600E-02 -.230 -.381 -.535 -.691 -.846-
  -.999 -1.147 -1.289 -1.422 -1.544 -1.654
   "