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RADIATE - Draw a line from the given point to the first NP data points

Description:
A line is drawn from the given radiant, position (X,Y), to the first NP data points in the XCOL and YCOL data areas.

This command is an ICL hidden procedure which uses successive calls to the GETPOINT, MOVE and DRAW applications.


Usage:
radiate x y np

Parameters:

X = _REAL (Read)
The X-axis position of the radiant. []
Y = _REAL (Read)
The Y-axis position of the radiant. []
NP = _INTEGER (Read)
The number of data in the XCOL and YCOL data areas to use, starting from the beginning of the data. []



next up previous 241
Next: READF - Read from a formatted data file
Up: PONGO Command Definitions
Previous: PVECT - Draw proper motion vectors

PONGO [2exof Applications for Interactive Data Plotting [2exon 2.0-2
Starlink User Note 137
Paul Harrison, Paul Rees,
Peter Draper, Alasdair Allan
27 March 2008
E-mail:starlink@jiscmail.ac.uk

Copyright © 2013 Science and Technology Facilities Council