Next: *skypix* conversion Up: Celestial Coordinates from Image Previous: Celestial Coordinates from Image . This will calculate coordinates from header information (therefore epoch 1950 for Einstein , epoch 2000 for ROSAT) and will present coordinates in hms,dms. st> xray xr> xplot xp> tvlabel ``xdata$rp110590n00.qp[block=10]'' . d for coordinates at cursor position. ... xp> xexamine ``xdata$rp110590n00.qp'' c for sky coordinates at cursor position q to quit . ...

... Restrictions ) are used. If specified form of output is EMP then astrometric equatorial coordinates are printed in the form usual for Ephemerides of Minor Planets, with formal precision of 0.01 minute of time in R.A. and 0.1 minute of arc in declination. ... It should be noted that the near-opposition ephemerides are not calculated for bodies/ points with numbers from –12 to 0 (in case they are included into task for computation of such ephemerides only their names are displayed in the results). ...

... Circles are used to depict the source positions. ... A optional ID label can also be displayed alongside the circle, corresponding to the row num- ber of that source in the input source list. ... These circles are in fact DS9-type regions, which can be written out to a le for future use (for example, when running a later DS9 session) by setting withregionfile to true, and specifying the desired le name via the regionfile parameter. ... This is a text le containing region descriptions for each source...

... To run the <LAYER> version of the example, select: flower.htm . ... However, if the page had several layers with absolute positions, and you wanted to place another layer in a relative position to one of the existing layers, you could use inline JavaScript to calculate the value for LEFT or TOP . ... In this example, there is really no need to use inline JavaScript to position the last flower layer, since you could just let the TOP value default to its natural value, as in the other flower layers. ...

Program: CURSOR Purpose: Write positions (GRIDS and PHYSICAL coordinates), pointed with an interactive graphics cursor in a GIDS overlay, to screen or ASCII file. ... BOX= Give box in ..... [entire subset] **COLOUR= Marker colour (number or abbrv. name): [red] The positions pointed by the graphics cursor will be marked in this colour. ... Example: Set marker colour to yellow: COLOUR=7 COLOUR=Yellow COLOUR=yel FILENAME= Give name of ASCII file: [No file] Write positions to a file on disk or screen. ...

Science Observatory Branch Report SOB-93-12-06 A determination of the pointing history during FOS scans of Mars Colin Cox and Matt Lallo December 1993 We have used pointing software, developed earlier for a comparison with the PASS software, to analyze scans of Mars performed at intervals since June 1992. ... For these sets of data the V2 V3 positions are those of the Faint Object Spectrograph's paired apertures as recorded in the Science Instrument Aperture File in the Project Data Base. ...

... We present a new Tcl/Tk based GUI interface tool which features plotting of curve and image data and allows for user input via return of regions or specific cursor positions. ... Curves and Images may then be combined to form a displayed Graph. ... With the development of several GUI based tools for High Energy Astrophysics at the HEASARC, we found a need for a interface tool that supports combined curve plotting and image display in a native Tcl/Tk environment. POW is our answer. ...

polimplot -- Plot a polarization vector map . ... inpol = "" [name] . Input linear polarization image (in %) to plot. inpopa = "" [name] . Input image for position angle of linear polarization vectors (degrees). poi_err = "" [boolean] . ... Name of corresponding polarization position angle error image (degrees). ... This task is a flexible tool for plotting a polarization vector map from two images of the polarization and the position angle of the polarization vector. ...

polimplot -- Plot a polarization vector map . ... inpol = "" [name] . Input linear polarization image (in %) to plot. inpopa = "" [name] . Input image for position angle of linear polarization vectors (degrees). poi_err = "" [boolean] . ... Name of corresponding polarization position angle error image (degrees). ... This task is a flexible tool for plotting a polarization vector map from two images of the polarization and the position angle of the polarization vector. ...

Set the display of the status bar, tool bar, locator bar, and properties associated with the display of the pointer position in the Locator bar. ... Set fixed point . ... When the fixed point is set, and the display format is (DX, DY), (DIST), or (R, Theta) then give the location relative to the fixed point. ... Set the fixed point to (0.0, 0.0). ... DX, DY] Display the delta in X and Y of the position of the mouse relative to the fixed point, or (0, 0) if no fixed point has been selected. ...

Program to display an object's position in real time} {Set the delimiter to % so we can use , in prompts} set_delimiter(%) {On first pass, get the name of the object etc.} if (s1=.) set_string (s1%Sun) display _title(+++ Real-time Positions +++) write_string (Possible objects are:) new_line write_string (Sun, Moon, name of a planet, parabolic or elliptical) new_line new_line ...

Next: Graphics Display Up: Commands Grouped by Previous: Image Directory and . ... CLEAR/DISPLAY Reset monitor . CLEAR/LUT Bypass LUT in screen segment on monitor . ... CUTS/IMAGE Set display thresholds for image . ... DISPLAY/CHANNEL Display image loaded into channel . ... EXTRACT/CURSOR Extract a subframe from the frame currently . ... LOAD/ITT Load an intensity transfer table . LOAD/LUT Load a colour lookup table into display unit . LOAD/TABLE Display table data on image display . ...