Class ImageDisplay

Interface to IRAF-compatible image display

Instance Methods

__init__(self)

source code

readCursor(self, sample=0)
Read image cursor value for this image display

source code

_writeHeader(self, tid, subunit, thingct, x, y, z, t)
Write request to image display

source code

close(self, os_close=<built-in function close>)
Close image display connection

source code

_read(self, n)
Read n bytes from image display and return as string

source code

_write(self, s)
Write string s to image display

source code

Class Variables

_IIS_READ = 32768

_IMC_SAMPLE = 16384

_IMCURSOR = 16

_SZ_IMCURVAL = 160

Method Details

Read image cursor value for this image display

Return immediately if sample is true, or wait for keystroke if sample is false (default). Returns a string with x, y, frame, and key.

Read n bytes from image display and return as string

Raises IOError on failure. If a Tkinter widget exists, runs a Tk mainloop while waiting for data so that the Tk widgets remain responsive.

Write string s to image display

Raises IOError on failure