****************************************************************************
* rrd__graph.c produce graphs from data in rrdfiles
****************************************************************************/
****************************************************************************
* rrd__graph.c produce graphs from data in rrdfiles
****************************************************************************/
double new_range = factor * (im->maxval - im->minval);
double gridstep = im->ygrid_scale.gridstep;
double minor_y, minor_y_px, minor_y_px_frac;
double new_range = factor * (im->maxval - im->minval);
double gridstep = im->ygrid_scale.gridstep;
double minor_y, minor_y_px, minor_y_px_frac;
ytr(im,DNAN); /* reset precalc */
/* make sure first minor gridline is on integer pixel y coord */
minor_y = gridstep * floor(im->minval / gridstep);
ytr(im,DNAN); /* reset precalc */
/* make sure first minor gridline is on integer pixel y coord */
minor_y = gridstep * floor(im->minval / gridstep);
for (i = sgrid; i <= egrid; i++){
double Y0=ytr(im,im->ygrid_scale.gridstep*i);
double YN=ytr(im,im->ygrid_scale.gridstep*(i+1));
for (i = sgrid; i <= egrid; i++){
double Y0=ytr(im,im->ygrid_scale.gridstep*i);
double YN=ytr(im,im->ygrid_scale.gridstep*(i+1));
/* Make sure at least 2 grid labels are shown, even if it doesn't agree
with the chosen settings. Add a label if required by settings, or if
there is only one label so far and the next grid line is out of bounds. */
/* Make sure at least 2 grid labels are shown, even if it doesn't agree
with the chosen settings. Add a label if required by settings, or if
there is only one label so far and the next grid line is out of bounds. */