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 . ...

Three different forms are possible for representing Results of calculation of spherical coordinates: . the form designated as EMP is similar to that used in the Ephemerides of Minor Planets, having formal precision of 0.01 minute of time in right ascension and 0.1 minute of arc in declination. Longitude, latitude, azimuth and altitude are also displayed with comparable formal precision. the form designated as Positions has enhanced formal precision. ...

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. ...

... 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. ...

. Search near object or position . Help . | HyperLeda home | Documentation | Search by name | Search near a position | Define a sample | SQL Search | . Object designation . Find coordinates in . Celestial position . Search radius . (arcmin) . Display an image from DSS . Display an image from . Display with . (java applet) . List objects in . order by right ascension designation . The lay-out of this page has been last modified on: 2002/05/05 . HyperLeda . Questions: leda@univ-lyon1.fr

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 ...

... Pro dRdpix, Image,X0, Y0 ;Read the value of the pixel under the cursor ;Display x,y and the pixel value under the cursor ;+ ; NAME: ; DRDPIX ; ; Exactly like rdpix, except uses data coordinates rather than device ; coordinates. PURPOSE: ; Interactively display the X position, Y position, and pixel value ; of the cursor. CATEGORY: ; Image display. ... PROCEDURE: ; Instructions are printed and the pixel values are printed as the ; cursor is moved over the image. ...

... 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...

... 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. ...