Provided by: inventor-doc_2.1.5-10-24_all 
NAME
SbTime — class for representation of a time
INHERITS FROM
SbTime
SYNOPSIS
#include <Inventor/SbTime.h>
Methods from class SbTime:
SbTime()
SbTime(double sec)
SbTime(int32_t sec, long usec)
SbTime(const struct timeval *tv)
static SbTime getTimeOfDay()
void setToTimeOfDay()
static SbTime zero()
static SbTime max()
void setValue(double sec)
void setValue(int32_t sec, long usec)
void setValue(const struct timeval *tv)
void setMsecValue(unsigned long msec)
double getValue() const
void getValue(int32_t &sec, long &usec) const
void getValue(struct timeval *tv) const
unsigned long getMsecValue() const
SbString format(const char *fmt = "%S.%i") const
SbString formatDate(const char *fmt = "%A, %D %r") const
SbTime operator +(const SbTime &t0, const SbTime &t1)
SbTime operator -(const SbTime &t0, const SbTime &t1)
SbTime & operator +=(const SbTime &tm)
SbTime & operator -=(const SbTime &tm)
SbTime operator -() const
SbTime operator *(double s, const SbTime &tm)
SbTime operator *(const SbTime &tm, double s)
SbTime operator /(const SbTime &tm, double s)
SbTime & operator *=(double s)
SbTime & operator /=(double s)
double operator /(const SbTime &tm) const
SbTime operator %(const SbTime &tm) const
int operator ==(const SbTime &tm) const
int operator !=(const SbTime &tm) const
SbBool operator <(const SbTime &tm) const
SbBool operator >(const SbTime &tm) const
SbBool operator <=(const SbTime &tm) const
SbBool operator >=(const SbTime &tm) const
DESCRIPTION
This class represents and performs operations on time. Operations may be done in seconds, seconds and
microseconds, or using a struct timeval (defined in /usr/include/sys/time.h).
METHODS
SbTime()
SbTime(double sec)
SbTime(int32_t sec, long usec)
SbTime(const struct timeval *tv)
Constructors taking seconds, seconds and microseconds, or a struct timeval. NOTE that an integer
parameter will not automatically cast to a double to invoke the constructor taking seconds; that is,
SbTime(1) will result in a compilation error. SbTime(1.0) must be used instead. This is to avoid
errors in upgrading from an earlier release, in which SbTime(1) had different semantics. In future
releases, this distinction will be eliminated, and the effect of SbTime(1.0) and that of SbTime(1)
will be identical.
static SbTime getTimeOfDay()
Get the current time (seconds since Jan 1, 1970).
void setToTimeOfDay()
Set to the current time (seconds since Jan 1, 1970).
static SbTime zero()
Get a zero time.
static SbTime max()
Get a time far, far into the future.
void setValue(double sec)
Set time from a double (in seconds).
void setValue(int32_t sec, long usec)
Set time from seconds + microseconds.
void setValue(const struct timeval *tv)
Set time from a struct timeval.
void setMsecValue(unsigned long msec)
Set time from milliseconds.
double getValue() const
Get time in seconds as a double.
void getValue(int32_t &sec, long &usec) const
Get time in seconds and microseconds.
void getValue(struct timeval *tv) const
Get time in a struct timeval.
unsigned long getMsecValue() const
Get time in milliseconds (for Xt).
SbString format(const char *fmt = "%S.%i") const
Convert to a string. The default format is seconds with 3 digits of fraction precision. fmt is a
character string that consists of field descriptors and text characters, in a manner analogous to
cftime (3C) and printf (3S). Each field descriptor consists of a % character followed by another
character which specifies the replacement for the field descriptor. All other characters are copied
from fmt into the result. The following field descriptors are supported:
% the `%' character
D total number of days
H total number of hours
M total number of minutes
S total number of seconds
I total number of milliseconds
U total number of microseconds
h hours remaining after the days (00-23)
m minutes remaining after the hours (00-59)
s seconds remaining after the minutes (00-59)
i milliseconds remaining after the seconds (000-999)
u microseconds remaining after the seconds (000000-999999)
The uppercase descriptors are formatted with a leading `—' for negative times; the lowercase
descriptors are formatted fixed width, with leading zeros. For example, a reasonable format string
might be "elapsed time: %M minutes, %s seconds". The default value of fmt, "%S.%i", formats the time
as seconds with 3 digits of fractional precision.
SbString formatDate(const char *fmt = "%A, %D %r") const
Convert to a date string, interpreting the time as seconds since Jan 1, 1970. The default format gives
"Tuesday, 01/26/93 11:23:41 AM". See the cftime() reference page for explanation of the format string.
SbTime operator +(const SbTime &t0, const SbTime &t1)
SbTime operator -(const SbTime &t0, const SbTime &t1)
Addition and subtraction of two times.
SbTime & operator +=(const SbTime &tm)
SbTime & operator -=(const SbTime &tm)
Addition and subtraction of two times which modifies the time structure.
SbTime operator -() const
Unary negation.
SbTime operator *(double s, const SbTime &tm)
SbTime operator *(const SbTime &tm, double s)
SbTime operator /(const SbTime &tm, double s)
Multiplication and division by scalar.
SbTime & operator *=(double s)
SbTime & operator /=(double s)
Destructive multiplication and division by scalar.
double operator /(const SbTime &tm) const
Division by another time.
SbTime operator %(const SbTime &tm) const
Modulus for two times (remainder when time1 is divided by time2).
int operator ==(const SbTime &tm) const
int operator !=(const SbTime &tm) const
Equality operators.
SbBool operator <(const SbTime &tm) const
SbBool operator >(const SbTime &tm) const
SbBool operator <=(const SbTime &tm) const
SbBool operator >=(const SbTime &tm) const
Relational operators.
SEE ALSO
cftime
SbTime(3IV)()