Syntax
[C/C++:]
void ggSetAxesScaling(int scale, int nints, float vbeg, float vend,int xory);
[F90:]
subroutine ggSetAxesScaling(scale, nints, vbeg, vend, xory)
integer, intent(in) :: scale, nints, xory
real, intent(in) :: vbeg, vend
Arguments
scale
The type of scaling to be used
|
= GLINEARTYPE1 |
Linear scaling automatically calculated from the available axis length. Results in a range which includes vbeg and vend as closely as possible, divided into approximately nints intervals |
|
= GLINEARTYPE2 |
Linear scaling automatically calculated to
produce precisely nints intervals in a range
including vbeg and vend |
|
= GLINEARTYPE3 |
Linear scaling selected by the user with precisely nints intervals, vbeg on the first interval and vend on the last interval |
|
= GDISCRETE |
Discrete axis with nints columns or rows
and tick marks at the column or row centres
|
nints
The number of intervals on a linear axis, or the number of columns or rows on a discrete axis. The value of
nints is irrelevant when used with logarithmic scaling
vbeg
Value specifying the beginning of the range to be included on the axis
vend
Value specifying the end of the range to be included on the axis
xory
Specified axis
|
= GXAXIS |
The X axis is defined |
|
= GYAXIS |
The Y axis is defined |
Description
The routine ggSetAxesScaling() defines the scaling characteristics of the last
xory axis defined by ggSetAxesPos(), or the default axis if ggSetAxesPos() has not been called. If graphical drawing begins before ggSetAxesScaling() is called, the following defaults are used:
scale = GLINEARTYPE3
nints = 9
vbeg = 1.0
vend = 10.0
If, for
scale = GLINEARTYPE1, GLINEARTYPE2, GLINEARTYPE3, or GDISCRETE,
vbeg =
vend, the following defaults are used:
new
vbeg =
vbeg - 0.5 * (exponent of
vbeg)
new
vend =
vend + 0.5 * (exponent of
vend)
If, for
scale = GLOG10,
vbeg =
vend, the following default is used:
vbeg =
vbeg/10
vend = 10 *
vend
The actual number of intervals and ranges calculated by ggSetAxesScaling() may be enquired through the routine ggEnqAxesScaling().
Successive calls to ggSetAxesScaling() for a particular axis override previous calls for that axis. Coordinates defined in terms of axes set up by ggSetAxesScaling() and ggSetAxesPos() are referred to as graphical axes coordinates.
The effects of ggSetAxesScaling() may be overridden using ggRestoreAxesSettings(), allowing parameters set by ggSetAxesScaling() to be restored to their default values.
See Also
ggSetAxesScaling UsageggSetAxesPosggRestoreAxesSettingsggEnqAxesScaling
