SVG: Make sure graduations are properly aligned with grid

Signed-off-by: Sebastien GODARD <sysstat@users.noreply.github.com>

diff --git a/svg_stats.c b/svg_stats.c
index 6f2976d1b2dab1b3a4064d0d8aa590ce01769d56..c0727285a5e344f6094195eddbc215e9fef3cd85 100644 (file)
--- a/svg_stats.c
+++ b/svg_stats.c
@@ -647,7 +647,7 @@ void draw_activity_graphs(int g_nr, int g_type, char *title[], char *g_title[],
        unsigned int asfactor[16];
        long int k;
        double lmax, xfactor, yfactor, ypos, gmin, gmax;
-       char cur_time[32], val[32];
+       char cur_time[32], val[32], stmp[32];
 
        /* Translate to proper position for current activity */
        printf("<g id=\"g%d\" transform=\"translate(0,%d)\">\n",
@@ -777,9 +777,15 @@ void draw_activity_graphs(int g_nr, int g_type, char *title[], char *g_title[],
                while (ypos * j <= lmax);
                j = 0;
                do {
+                       /*
+                        * Use same rounded value for graduation numbers as for grid lines
+                        * to make sure they are properly aligned.
+                        */
+                       sprintf(stmp, "%.2f", ypos * j);
+
                        printf("<text x=\"0\" y=\"%ld\" style=\"fill: white; stroke: none; font-size: 12px; "
                               "text-anchor: end\">%.*f.</text>\n",
-                              (long) (ypos * j * yfactor), dp, ypos * j);
+                              (long) (atof(stmp) * yfactor), dp, ypos * j);
                        j++;
                }
                while (ypos * j <= lmax);