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. */