Section 3: library functions
WFMath::RotMatrix – A dim dimensional rotation matrix. Technically, a member of the group O(dim). Synopsis #include <rotmatrix.h> Public Member Functions RotMatrix & identity () set the matrix to the identity matrix CoordType elem (const int i, const int j) const get the (i, j) element of the matrix bool setVals (const CoordType vals[dim][dim], double precision=WFMATH_EPSILON)…
WFMath::RotBox – A dim dimensional box, lying at an arbitrary angle. Synopsis #include <rotbox.h> Public Member Functions RotBox () construct an uninitialized box RotBox (const Point< dim > &p, const Vector< dim > &size, const RotMatrix< dim > &orientation) construct a box from the given parameters RotBox (const RotBox &b) construct a copy of the…
WFMath::Quaternion – A normalized quaterion. Synopsis #include <quaternion.h> Public Member Functions Quaternion () Construct a Quatertion. Quaternion (CoordType w_in, CoordType x_in, CoordType y_in, CoordType z_in) Construct a Quaternion from (w, x, y, z) components. Quaternion (int axis, CoordType angle) Construct a Quaternion giving a rotation around axis by angle. Quaternion (const Vector< 3 > &axis,…
WFMath::Polygon< 2 > – The 2D specialization of the Polygon<> template. Synopsis #include <polygon.h> Public Member Functions Polygon (const AtlasInType &a) Construct a polygon from an object passed by Atlas. AtlasOutType toAtlas () const Create an Atlas object from the box. void fromAtlas (const AtlasInType &a) Set the box’s value to that given by an…
WFMath::Point – A dim dimensional point. Synopsis #include <point.h> Public Member Functions Point () Construct an uninitialized point. Point (const Point &p) Construct a copy of a point. Point (const AtlasInType &a) Construct a point from an object passed by Atlas. Point (const Vector< dim > vector) Construct a point from a vector. AtlasOutType toAtlas…
WFMath::Ball – A dim dimensional ball. Synopsis #include <ball.h> Public Member Functions Ball () construct an uninitialized ball Ball (const Point< dim > ¢er, CoordType radius) construct a ball with the given center and radius Ball (const Ball &b) construct a copy of a ball Ball (const AtlasInType &a) Construct a ball from an object…
WFMath::AxisBox – A dim dimensional axis-aligned box. Synopsis #include <axisbox.h> Public Member Functions AxisBox () Construct an uninitialized box. AxisBox (const Point< dim > &p1, const Point< dim > &p2, bool ordered=false) Construct a box with opposite corners p1 and p2. AxisBox (const AxisBox &a) Construct a copy of a box. AxisBox (const AtlasInType &a)…
NAME stpttf.f – SYNOPSIS Functions/Subroutines subroutine stpttf (TRANSR, UPLO, N, AP, ARF, INFO) STPTTF copies a triangular matrix from the standard packed format (TP) to the rectangular full packed format (TF). Function/Subroutine Documentation subroutine stpttf (characterTRANSR, characterUPLO, integerN, real, dimension( 0: * )AP, real, dimension( 0: * )ARF, integerINFO) STPTTF copies a triangular matrix from…
NAME stptrs.f – SYNOPSIS Functions/Subroutines subroutine stptrs (UPLO, TRANS, DIAG, N, NRHS, AP, B, LDB, INFO) STPTRS Function/Subroutine Documentation subroutine stptrs (characterUPLO, characterTRANS, characterDIAG, integerN, integerNRHS, real, dimension( * )AP, real, dimension( ldb, * )B, integerLDB, integerINFO) STPTRS Purpose: STPTRS solves a triangular system of the form A * X = B or A**T *…
NAME sla_syrfsx_extended.f – SYNOPSIS Functions/Subroutines subroutine sla_syrfsx_extended (PREC_TYPE, UPLO, N, NRHS, A, LDA, AF, LDAF, IPIV, COLEQU, C, B, LDB, Y, LDY, BERR_OUT, N_NORMS, ERR_BNDS_NORM, ERR_BNDS_COMP, RES, AYB, DY, Y_TAIL, RCOND, ITHRESH, RTHRESH, DZ_UB, IGNORE_CWISE, INFO) SLA_SYRFSX_EXTENDED improves the computed solution to a system of linear equations for symmetric indefinite matrices by performing extra-precise iterative…
NAME sla_syrcond.f – SYNOPSIS Functions/Subroutines REAL function sla_syrcond (UPLO, N, A, LDA, AF, LDAF, IPIV, CMODE, C, INFO, WORK, IWORK) SLA_SYRCOND estimates the Skeel condition number for a symmetric indefinite matrix. Function/Subroutine Documentation REAL function sla_syrcond (characterUPLO, integerN, real, dimension( lda, * )A, integerLDA, real, dimension( ldaf, * )AF, integerLDAF, integer, dimension( * )IPIV, integerCMODE,…
NAME slahr2.f – SYNOPSIS Functions/Subroutines subroutine slahr2 (N, K, NB, A, LDA, TAU, T, LDT, Y, LDY) SLAHR2 reduces the specified number of first columns of a general rectangular matrix A so that elements below the specified subdiagonal are zero, and returns auxiliary matrices which are needed to apply the transformation to the unreduced part…
NAME slahqr.f – SYNOPSIS Functions/Subroutines subroutine slahqr (WANTT, WANTZ, N, ILO, IHI, H, LDH, WR, WI, ILOZ, IHIZ, Z, LDZ, INFO) SLAHQR computes the eigenvalues and Schur factorization of an upper Hessenberg matrix, using the double-shift/single-shift QR algorithm. Function/Subroutine Documentation subroutine slahqr (logicalWANTT, logicalWANTZ, integerN, integerILO, integerIHI, real, dimension( ldh, * )H, integerLDH, real, dimension(…
sd-daemon, SD_EMERG, SD_ALERT, SD_CRIT, SD_ERR, SD_WARNING, SD_NOTICE, SD_INFO, SD_DEBUG – APIs for new-style daemons Synopsis #include <systemd/sd-daemon.h> pkg-config –cflags –libs libsystemd Description sd-daemon.h provide APIs for new-style daemons, as implemented by the systemd(1) init system. See sd_listen_fds(3), sd_notify(3), sd_booted(3), sd_is_fifo(3), sd_watchdog_enabled(3) for more information about the functions implemented. In addition to these functions, a couple…
sd-daemon, SD_EMERG, SD_ALERT, SD_CRIT, SD_ERR, SD_WARNING, SD_NOTICE, SD_INFO, SD_DEBUG – APIs for new-style daemons Synopsis #include <systemd/sd-daemon.h> pkg-config –cflags –libs libsystemd Description sd-daemon.h provide APIs for new-style daemons, as implemented by the systemd(1) init system. See sd_listen_fds(3), sd_notify(3), sd_booted(3), sd_is_fifo(3), sd_watchdog_enabled(3) for more information about the functions implemented. In addition to these functions, a couple…
SDL_SaveBMP – Save an SDL_Surface as a Windows BMP file. Synopsis #include "SDL.h" int SDL_SaveBMP(SDL_Surface *surface, const char *file); Description Saves the SDL_Surface surface as a Windows BMP file named file. Return Value Returns 0 if successful or -1 if there was an error. See Also SDL_LoadBMP
SDL_ResizeEvent – Window resize event structure Structure Definition typedef struct{ Uint8 type; int w, h; } SDL_ResizeEvent; Structure Data type SDL_VIDEORESIZE w, h New width and height of the window Description SDL_ResizeEvent is a member of the SDL_Event union and is used when an event of type SDL_VIDEORESIZE is reported. When SDL_RESIZABLE is passed as…
SDL_RemoveTimer – Remove a timer which was added with SDL_AddTimer. Synopsis #include "SDL.h" SDL_bool SDL_RemoveTimer(SDL_TimerID id); Description Removes a timer callback previously added with SDL_AddTimer. Return Value Returns a boolean value indicating success. Examples SDL_RemoveTimer(my_timer_id); See Also SDL_AddTimer
SDL_GetCursor – Get the currently active mouse cursor. Synopsis #include "SDL.h" SDL_Cursor *SDL_GetCursor(void); Description Returns the currently active mouse cursor. See Also SDL_SetCursor, SDL_CreateCursor, SDL_ShowCursor
SDL_GetClipRect – Gets the clipping rectangle for a surface. Synopsis #include "SDL.h" void SDL_GetClipRect(SDL_Surface *surface, SDL_Rect *rect); Description Gets the clipping rectangle for a surface. When this surface is the destination of a blit, only the area within the clip rectangle is drawn into. The rectangle pointed to by rect will be filled with the…