wnextd_c |

Table of contents## Procedurewnextd_c ( Extract the endpoints from a DP window ) void wnextd_c ( SpiceChar side, SpiceCell * window ) ## AbstractExtract the left or right endpoints from a double precision window. ## Required_ReadingWINDOWS ## KeywordsWINDOWS ## Brief_I/OVARIABLE I/O DESCRIPTION -------- --- -------------------------------------------------- side I Extract left ('L') or right ('R') endpoints. window I-O Window to be extracted. ## Detailed_Inputside indicates whether the left or right endpoints of the intervals in the window are to be extracted. 'L', 'l' Left endpoints. 'R', 'r' Right endpoints. If `side' is not recognized, the input window is not changed. window on input, is a window containing zero or more intervals. `window' must be declared as a double precision SpiceCell. CSPICE provides the following macro, which declares and initializes the cell SPICEDOUBLE_CELL ( window, WINDOWSZ ); where WINDOWSZ is the maximum capacity of `window'. ## Detailed_Outputwindow on output, is the collection of singleton intervals containing either the left or the right endpoints of the intervals in the original window. ## ParametersNone. ## Exceptions1) If the endpoint specification, `side', is not recognized, the error SPICE(INVALIDENDPNTSPEC) is signaled by a routine in the call tree of this routine. 2) The cardinality of the input `window' must be even. Left endpoints of stored intervals must be strictly greater than preceding right endpoints. Right endpoints must be greater than or equal to corresponding left endpoints. Invalid window data are not diagnosed by this routine and may lead to unpredictable results. 3) If the `window' cell argument has a type other than SpiceDouble, the error SPICE(TYPEMISMATCH) is signaled. ## FilesNone. ## ParticularsThis routine replaces every interval in the input window with the singleton interval containing one of the endpoints of the interval. ## ExamplesLet window contain the intervals [ 1, 3 ] [ 7, 11 ] [ 23, 27 ] [ 29, 29 ] Then the call ## RestrictionsNone. ## Literature_ReferencesNone. ## Author_and_InstitutionN.J. Bachman (JPL) J. Diaz del Rio (ODC Space) H.A. Neilan (JPL) W.L. Taber (JPL) I.M. Underwood (JPL) ## Version-CSPICE Version 1.0.1, 05-AUG-2021 (JDR) Edited the header to comply with NAIF standard. Extended description of argument "window" in -Detailed_Input to include type and preferred declaration method. Added entry #2 in -Exceptions section. -CSPICE Version 1.0.0, 29-JUL-2002 (NJB) (HAN) (WLT) (IMU) ## Index_Entriesextract the endpoints from a d.p. window |

Fri Dec 31 18:41:15 2021