allow decimal positions y axis labels as soon as the max entry is < 10

git-svn-id: svn://svn.oetiker.ch/rrdtool/branches/1.2@529 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/program/src/rrd_graph.c b/program/src/rrd_graph.c
index 2fae2583de02cfda0e96f5edeafac79a4dbfc292..b53672fa05a4cb42c6fdfadb01bbd537c3278121 100644 (file)
--- a/program/src/rrd_graph.c
+++ b/program/src/rrd_graph.c
@@ -1614,14 +1614,16 @@ int draw_horizontal_grid(image_desc_t *im)
    
     int sgrid = (int)( im->minval / im->ygrid_scale.gridstep - 1);
     int egrid = (int)( im->maxval / im->ygrid_scale.gridstep + 1);
+    double MaxY;
     scaledstep = im->ygrid_scale.gridstep/im->magfact;
+    MaxY = scaledstep*(double)im->viewfactor*(double)egrid;
     for (i = sgrid; i <= egrid; i++){
        double Y0=ytr(im,im->ygrid_scale.gridstep*i);
        if ( Y0 >= im->yorigin-im->ysize
                 && Y0 <= im->yorigin){       
            if(i % im->ygrid_scale.labfact == 0){               
                if (i==0 || im->symbol == ' ') {
-                   if(scaledstep < 1){
+                   if(MaxY < 10) {
                        if(im->extra_flags & ALTYGRID) {
                            sprintf(graph_label,im->ygrid_scale.labfmt,scaledstep*im->viewfactor*i);
                        }
@@ -1632,7 +1634,7 @@ int draw_horizontal_grid(image_desc_t *im)
                        sprintf(graph_label,"%4.0f",scaledstep*im->viewfactor*i);
                    }
                }else {
-                   if(scaledstep < 1){
+                   if(MaxY < 10){
                        sprintf(graph_label,"%4.1f %c",scaledstep*im->viewfactor*i, im->symbol);
                    } else {
                        sprintf(graph_label,"%4.0f %c",scaledstep*im->viewfactor*i, im->symbol);