Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.atnf.csiro.au/computing/software/gipsy/tsk/renzogram.dc1 Дата изменения: Mon Aug 20 08:54:50 2001 Дата индексирования: Fri Jan 16 21:50:32 2009 Кодировка: Поисковые слова: http www.astronomy.ru forum index.php topic 4644.0.html

Program: RENZOGRAM

Purpose: Build and execute a GPLOT input file that plots
contours per level for different subsets. The contours
can be plotted on a set displayed in GIDS.

Category: DYNAMICS, PLOTTING, UTILITY

File: renzogram.c

Author: M.G.R. Vogelaar

Keywords:

INSET= Give set and subsets for the colour contours.
Maximum number of subsets is 1024.

From these subsets, the contours will be plotted in one
plot. The levels are entered in LEVEL1= etc.


BACKSET= Give set or subset for a background colour map: [no map]

Draw the contours on this image which becomes your
background.
Input must be 2-dimensional and the box at BOX= is
applied to THIS set. Then the contour map is scaled
so that it fits this map. If nothing is entered (default),
then BOX= applies to INSET=


BOX= Give box in ..... [entire subset]

If BACKSET= has a set name then BOX= applies to this set.
Else, BOX= applies to the subsets in INSET=


** FILENAME= Name of GPLOT ascii file: [GPLOTinputfile.scr]

This program generates an input file for GPLOT.
After finishing, it is not erased from disk, so you can
use it again, or edit it before re-use in GPLOT.
If you want a hardcopy (COPY=Y) then a second file
is created with the same name and extra extension '.dump'.
This file contains plot commands for a printer or a
PostScript file.


LEVEL1= Enter contour level:
LEVEL2= Enter contour level: [skip]
LEVEL3= Enter contour level: [skip]
LEVEL4= Enter contour level: [skip]
LEVEL5= Enter contour level: [skip]

Enter per LEVELx= keyword ONE contour level in units
of the input data at INSET=
Each level gets its own line style which must be
specified with the LTYPE= keyword.

Data is read from each subset and the contour is plotted
in a colour depending on the subset number.
However, after starting GIDS there are only 16 colours
available for the the contours, so some neighbouring
subsets get the same colour. The colours are selected
according the 'Rainbow' colour lookup table. For
hard copy devices there are 112 colours available.


LTYPE= Enter a line style per contour level: [1 2 ...]
The styles are:

1. full line
2. long dashes
3. dash-dot-dash-dot
4. dotted
5. dash-dot-dot-dot


** LWIDTH= Give the line width of the contours: [2]

This controls how thick your contours will be plotted.
You can select a number between 1 and 21.


COPY= Copy output to hardcopy device? Yes/[No]

Send the output to printer or PostScript file.
Adjust the colours in GIDS if you have a background
image. Then use COPY=Y to create a hard copy.
If COPY=Y , the GRDEVICE= keyword is prompted
to specify the device.


READY= You can change the colours for the background set now!

At this point you can adjust the colours of the
background set in GIDS. After pressing enter, the
colours are fixed. If you want to use the generated
GPLOT file from within GPLOT, then you need to
start GIDS also because the GPLOT macro will always
try to contact GIDS for the colour information.


GRDEVICE= Graphics device [list of all graphics devices]

Select the device to which you want to send the output.
This can be a (colour) printer or a (colour) PostScript
file. Note that this keyword is also set in hidden mode
to start VIEW, so for a batch job you have to specify
a second device e.g.: GRDEVICE=X11;X11



Description: RENZOGRAM is a program which displays kinematic and spatial
information in a single colour plot. It overlays one
(or more) contours per subset over an image (such as an
optical image), plotting the contours of each subset with a
different colour. In this way, the velocity information is
color coded and easy to see together with the extension of
the features. It is a useful tool to observe changes in
inclination of galactic disks (warps). Its most common use is
to plot a low contour (e.g. 3 sigma), and perhaps a high
contour (to see the peak of each channel). The program is an
implementation of an old idea of prof. Renzo Sancisi.

Notes:


Example: renzogram
INSET=AURORA freq
BACKSET=AURORA freq 0
BOX=-64 -64 64 64
CLIP=
LEVEL1=3
COPY=y
GRDEVICE=PCPSFILE/myfile.ps

Updates: Mar 31, 1998: VOG, Document created.
Oct 19, 2000: VOG, Add colour coded table with physical
coordinates.
Nov 24, 2000: VOG, 'box' in GPLOT file and change of format
in velocity legend.