Program: TRACE Purpose: TRACE plots image values at user given positions as function of distance to a plot centre (in 2-d (sub)sets). Category: ANALYSIS, PLOTTING File: trace.c Author: M.G.R. Vogelaar Keywords: INSET= Give set (, subset): Only one subset is allowed. ... XYBOX= Give size of box around one pixel: [3,3] The resulting value at a selected position is an average of the pixels in the defined box around that position. ... POSITION= Give position x, y: Physical values are allowed. ...

... to_tsquery( [ configuration , ] querytext text) RETURNS TSQUERY . ... Query rewriting is a set of functions and operators for tsquery type. ... We'll expand query supernovae using table-driven rewriting rules. =# create table aliases (t tsquery primary key, s tsquery); =# insert into aliases values(to_tsquery('supernovae'), to_tsquery('supernovae|sn')); =# select rewrite(to_tsquery('supernovae'), 'select * from aliases') && to_tsquery('crab'); ?column? --------------------------------- ( 'supernova'...

... CYLINDRICAL PROJECTIONS: -Jc lon0 / lat0 / scale (Cassini) -Jj lon0 / scale (Miller) -Jm scale ( Mercator - Greenwich and Equator as origin) -Jm lon0 / lat0 / scale ( Mercator - Give meridian and standard parallel) -Joa lon0 / lat0 / azimuth / scale (Oblique Mercator - point and azimuth) -Job lon0 / lat0 / lon1 / lat1 / scale (Oblique Mercator - two points) -Joc lon0 / Je lon0 / lat0 / scale (Equidistant). Jf lon0 / lat0 / horizon / scale (Gnomonic). ...

... The exact directions of the offsets are parallel to the rows and columns of the CCD on which the aperture is specified. ... It is often useful to explicitly specify the desired rotation of the WFPC2 field-of-view on the sky. ... Figure 7.8 shows the CCD orientation and aperture locations relative to the U3 axis. ... Obtain the Position Angle (PA) of the source axis on the sky, measured in the standard way, North through East. ... desired source angle in field-of-view measured CW from +U3 axis) . ...

User catalogs allow you enter positions for your objects into a file, to save time during an observing run. ... Before diving into the details, here is an example: # default coordinate system and object # (these are the standard defaults, so if you like them you can omit this line) CSys=FK5; Date =2000; RotType= Object ; RotAng=0 # some random objects # Name Pos1 (e.g. RA) Pos2 (e.g. Dec) Options in keyword-value format NGC6543 rot 90 ... Object Data . Defaults . Catalog Options . ...

... 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. ...

This document contains a summary of the user interface for filtering rows in binary tables. Table filtering allows a program to select rows from an table (e.g., X-ray event list) by checking each row against one or more expressions involving the columns in the table. When a table is filtered, only valid rows satisfying these expressions are passed through for processing. ... select rows whose pha value is exactly 10 . ... 10 pha select rows whose pha value is in the range of 10 to 50 . ...

To proceed to drawing tracks of some objects select Tracks item in menu bar and then select Input Data in drop-down menu. Enter initial and final dates of time interval in corresponding data fields of the Input Data dialog box Input Data . ... The frame with horizontal and vertical scales corresponding to the right ascension and declination axes appears on screen. ... Depending on specifications introduced in the Input Data dialog box the picture represents tracks up to three different objects. ...

... For instance, motion event handlers are passed a pointer to a GdkEventMotion structure which looks (in part) like: struct _GdkEventMotion { GdkEventType type; GdkWindow *window; guint32 time; gdouble x; gdouble y; ... guint state; ... }; . ... The second field specifies the events we are interested in. ... The "motion_notify_event" and "button_press_event" handlers are pretty simple: static gint button_press_event (GtkWidget *widget, GdkEventButton *event) { if (event->button == 1 && pixmap != ...

... A file upload element on an HTML form. ... JavaScript 1.1: added type property . ... The HTML INPUT tag, with "file" as the value of the TYPE attribute. For a given form, the JavaScript runtime engine creates appropriate FileUpload objects and puts these objects in the elements array of the corresponding Form object. ... form . ... For all FileUpload objects, the value of the type property is "file" . ... Use the value property to obtain the file name that the user typed into a FileUpload object. ...

... The following gives the various command lines for running the program. omsource In this case the program will prompt the user to select an image file, either from a list of previously assessed files or from a directory. When the main window is displayed the user will also be able to select an existing source-list file by clicking on the sourcelist button. ... Again,the user can load a source-list by clicking on the sourcelist button. omsource imageset=... newsrclistset=... wdxset=.. ...

... Content Model: one ore more OPTION elements . The SELECT element is used for single and