wnexpd_c |

Table of contents## Procedurewnexpd_c ( Expand the intervals of a DP window ) void wnexpd_c ( SpiceDouble left, SpiceDouble right, SpiceCell * window ) ## AbstractExpand each of the intervals of a double precision window. ## Required_ReadingWINDOWS ## KeywordsWINDOWS ## Brief_I/OVARIABLE I/O DESCRIPTION -------- --- -------------------------------------------------- left I Amount subtracted from each left endpoint. right I Amount added to each right endpoint. window I-O Window to be expanded. ## Detailed_Inputleft is the amount to be subtracted from the left endpoint of each interval in the input window. The amount `left' is signed. right is the amount to be added to the right endpoint of each interval in the window. The amount `right' is signed. 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 original window with each of its intervals expanded by `left' units on the left and `right' units on the right. ## ParametersNone. ## Exceptions1) 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. 2) If the `window' cell argument has a type other than SpiceDouble, the error SPICE(TYPEMISMATCH) is signaled. ## FilesNone. ## ParticularsThis routine expands (lengthens) each of the intervals in the input window. The adjustments are not necessarily symmetric. That is, left units are subtracted from the left endpoint of each interval, and right units are added to the right endpoint of each interval, where left and right may be different. Intervals are merged when expansion causes them to overlap. ## ExamplesLet window contain the intervals [ 1, 3 ] [ 7, 11 ] [ 23, 27 ] [ 29, 29 ] Then the following series of calls ## 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 #1 in -Exceptions section. -CSPICE Version 1.0.0, 29-JUL-2002 (NJB) (HAN) (WLT) (IMU) ## Index_Entriesexpand the intervals of a d.p. window |

Fri Dec 31 18:41:15 2021