... Documentation for the Python objects defined by the project is divided into separate pages for each package, module, and class. The API documentation also includes two pages containing information about the project as a whole: a trees page, and an index page. ... A description of the package. ... A summary of the classes defined by the package. ... The module contents frame contains a list of every submodule, class, type, exception, function, and variable defined by a module or package. ...

... SphericalTexturedPolygon Member List . ... AllSky enum value (defined in SphericalRegion ) . ... contains (const Vec3d &p) const (defined in SphericalPolygon ) . ... inline, virtual] . ... getIntersection (const SphericalPolygon &r) const (defined in SphericalRegion ) . ... getSubtraction (const SphericalPolygon &r) const (defined in SphericalRegion ) . ... getUnion (const SphericalPolygon &r) const (defined in SphericalRegion ) . ... setContour (const QVector< TextureVertex > &contour) . ...

The astrometric information in FITS images (also referred to as the WCS) is stored in the header using a standard set of keywords. The reference location is defined by the following keywords: . ... CD1_1 is the partial of first axis coordinate w.r.t. x . ... This facilitates proper translation of pixel to sky coordinates for science analysis, and allows for all the necessary shifting information for each image to be stored in the header of the image itself for future alignment reference. ...

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. ...

Next: External Functions Up: Fitting of Data Previous: The Corrected Gauss--Newton . ... Basic functions are either defined in the system or defined by the user as external FORTRAN routines. ... Basic functions are specified by the name, the independent variable(s) and parameter(s), with optional guesses for the parameters, following the syntax: name(var1[, ];par1[, ]) [par1=value] . ... Parameters are defined by unique names after the semicolon in the function specification. ...

... In the above example, the second region uses the global coordinate system (PHYSICAL by default). ... Supported systems include: name description ---- ----------- PHYSICAL pixel coords of original file using LTM/LTV IMAGE pixel coords of current file FK4, B1950 sky coordinate systems FK5, J2000 sky coordinate systems GALACTIC sky coordinate systems ECLIPTIC sky coordinate systems ICRS currently same as J2000 LINEAR linear wcs as defined in file In addition, two mosaic coordinate ...

... The routine returns the offset (deltaX, deltaY) from the linear grid position for a specified detector location. ... the distortion (deltaX, deltaY) at the detector location (rawX, rawY) is derived from the distortion map stored in the extension FILTER-FilterId (e.g. FILTER-U, FILTER-V, FILTER-GRISM1 etc.) ... interpolate the extracted distortion points (RAWX_OFF ,RAWY_OFF ) and calculate the distortion (deltaX,deltaY) at the requested postion (rawX, rawY) . ... deltaX, deltaY . ...

... December 29, 1999 . The Decade that Defined Star System . ... The first extra-solar star system was discovered orbiting a pulsar in 1991. Slight changes in the precise arrival times of the pulses from the central small dense neutron star gave evidence of orbiting planets . ... As the decade comes to a close, over two dozen planetary star systems have been identified, one recently confirmed by the detection of a slight eclipse by the planet itself. ... About APOD > . ...

Astronomy Picture of the Day . ... 29.12.1999 . ... The first extra-solar star system was discovered orbiting a pulsar in 1991. Slight changes in the precise arrival times of the pulses from the central small dense neutron star gave evidence of orbiting planets . ... As the decade comes to a close, over two dozen planetary star systems have been identified, one recently confirmed by the detection of a slight eclipse by the planet itself. ... NASA Web Site Statements, Warnings, and Disclaimers . ...

... Packet Format . ... The TCC broadcasts UDP packets containing position information. ... Packet Header . ... int4 . ... double . ... pos, vel double . ... pos, vel, time double . ... See the TCC Message Keywords Dictionary for full definitions of most items in the "data" section of the packet. pos, vel double is a structure containing two doubles: "pos" and "vel"; it contains the same information as the TCC's "coordinates" (p,v,t triplets), but with time given by the "TAIDate" entry in the packet. ...

... Bojan Nikolic web pages (r. 329) . ... The order in which libraries to link to are passed to the linker is important . ... Many libraries use the GNU Autoconf/Automake build toolchain. ... Run the ./configure script, which looks for the various programs and libraries that the package needs . ... The simplest way is to run ./configure and make note of any complaints about missing programs or libraries that it reports. ... Some notes on the GNU toolchain . ... Passing options to configure . ...

Field centres for 6dF/FLAIR observations of the 6QZ survey. # 6dF fields have radius 2.844 deg. and were defined in the # J2000 system. FLAIR fields are square and are 5x5 deg # centred on UKST survey positions and defined in the B1950 # system. # 6dF : coordinates ( B1950 ) coordinates ( J2000 ) # Field hh mm ss.ss dd mm ss.s hh mm ss.ss dd mm ss.s sgp001 21 51 31.25 -30 11 45.4 21 54 25.40 -29 57 33.0 sgp002 22 10 08.35 -29 50 17.3 22 12 59.50 -29 35 25.0 sgp003 22 30 24.34 ...

... Preprocessor Compiler Control . ... This directive includes a file into code. ... include <file> or #include ``file'' . ... As another example if running program on MSDOS machine we want to include file msdos.h otherwise a default.h file. ... This is most often used with programs that translate other languages to C. For example, error messages produced by the C compiler can reference the file name and line numbers of the original source files instead of the intermediate C (translated) source files. ...

... This chapter introduces the concept of using positioned blocks or layers of HTML content, and looks at the ways to define positioned blocks of HTML content. ... Positioning HTML Content Using Styles . Positioning HTML Content Using the <LAYER> Tag . ... P> <P>More Content for layer 1.< ... P> </LAYER> <LAYER ID=layer2 TOP=60 LEFT=250 BGCOLOR=teal WIDTH=200> <P>Layer 2</P> </LAYER> <LAYER ID=layer3 TOP=170 LEFT=250 BGCOLOR="#6666FF"> <H1>Layer 3</H1> <P>This is a blue block of HTML content.< ...

dfos = Data Flow Operations System, the common tool set for DFO . The initialization file .dfosrc contains all environment variables which are shared amongst DFOS tools. E.g., $DFO_RAW_DIR is the directory root with raw data which may be defined e.g. as /data07/data/raw. ... that this variable is set and . that the defined directory exists. ... If no DFO variable is defined, the tools will stop. ... But for the DFOS tools it is sufficient to have the environment variables defined as such. ...

Next: Using a Java Web-based Graphical User Interface to access the SOHO Data Archive . ... A major problem with designing archives in astronomy is defining the data resolution. ... Expert users can create User Defined Functions (UDFs) that extract virtual attributes from files external to the database engine. ... Therefore, for the ISO Post Mission Archive, the concept of virtual data resolution with user defined functions has been designed and implemented as a novel database paradigm. ...

... In polar coordinates, the point P is defined by its distance r from the origin O (see drawing) and by its polar angle ("azimuth" on a map) between the x-axis and the "radius" r = OA, measured counter-clockwise. ... When one or both are negative , the angle f is larger than 90 degrees, and such angles never appears in any right-angled triangle. ... There is a simple solution , though: use the above equations to re-define sin f and cos f for such larger angles! ... But it also works for larger angles....

... sin f = y / r . cos f = x / r . ... They are now viewed as new definitions of the sine and cosine, for the polar angle f given by x and y ( a slightly different way of formulating this definition is described further below ). ... sin 2 f + cos 2 f = 1 . ... Angle . ... Many trigonometry texts define the sine and cosine slightly differently, using the so-called unit circle . ... Then the distance AB ("the sine line") equals sin a , and the distance OA ("the cosine line") equals cos a . ...

The following set of rules govern the evaluation of all shell variables. ... var signifies the value of var or nothing, if var is undefined. ${var} same as above except the braces enclose the name of the variable to be substituted. ${var-thing} value of var if var is defined; otherwise thing. $var is not set to thing. ${var=thing} value of var if var is defined; otherwise thing. If undefined $var is set to thing. ${var?message} If defined, $var; otherwise print message and exit the shell. ...