better scaling of network statistic graphs

htroot/NetworkHistory.java

@@ -93,13 +93,16 @@ public class NetworkHistory {
         }
         
         // find correct scale
-        int maxpeers = 10; // to be measured by pre-scanning the db
+        int maxpeers = 100, minpeers = Integer.MAX_VALUE; // to be measured by pre-scanning the db
         for (Map<String, Long> row: rows) {
             for (String column: columns) {
                 Long v = row.get(column);
                 if (v != null) maxpeers = Math.max(maxpeers, (int) v.longValue());
+                if (v != null && v.longValue() > 0) minpeers = Math.min(minpeers, (int) v.longValue());
             }
         }
+        maxpeers = 10 * ((maxpeers / 9 * 10) / 10);
+        minpeers = 10 * ((minpeers * 9 / 10) / 10);
         final int leftborder = 30;
         final int rightborder = 10;
         final int width = post.getInt("width", 768 + leftborder + rightborder);
@@ -108,7 +111,7 @@ public class NetworkHistory {
         final int topborder = 20;
         final int bottomborder = 20;
         final int vspace = height - topborder - bottomborder;
-        final int leftscale = maxpeers / 10;
+        final int leftscale = 10 * (maxpeers / 100);
         String timestr = maxtime + " HOURS";
         if (maxtime > 24 && maxtime % 24 == 0) timestr = (maxtime / 24) + " DAYS";
         if (maxtime == 168) timestr = "WEEK";
@@ -121,11 +124,11 @@ public class NetworkHistory {
         if (columns.contains("cC")) headline += ", ACTIVE SENIOR PEERS";
         if (columns.contains("cD")) headline += ", PASSIVE SENIOR PEERS";
         if (columns.contains("cP")) headline += ", POTENTIAL JUNIOR PEERS";
-        if (columns.contains("cI")) headline = "YACY INDEX SIZE HISTORY: NUMBER OF DOCUMENTS";
-        if (columns.contains("cR")) headline = "YACY INDEX SIZE HISTORY: NUMBER OF RWI ENTRIES";
+        if (columns.contains("cI")) headline = "YACY PEER '" + sb.peers.myName() + "' INDEX SIZE HISTORY: NUMBER OF DOCUMENTS";
+        if (columns.contains("cR")) headline = "YACY PEER '" + sb.peers.myName() + "' INDEX SIZE HISTORY: NUMBER OF RWI ENTRIES";
         ChartPlotter chart = new ChartPlotter(width, height, 0xFFFFFFl, 0x000000l, 0xAAAAAAl, leftborder, rightborder, topborder, bottomborder, headline, "IN THE LAST " + timestr);
         chart.declareDimension(ChartPlotter.DIMENSION_BOTTOM, bottomscale, hspace / (maxtime / bottomscale), -maxtime, 0x000000l, 0xCCCCCCl, "TIME/HOURS");
-        chart.declareDimension(ChartPlotter.DIMENSION_LEFT, leftscale, vspace * leftscale / maxpeers, 0, 0x008800l, null , columns.contains("cI") ? "DOCUMENTS" : columns.contains("cR") ? "RWIs" : "PEERS");
+        chart.declareDimension(ChartPlotter.DIMENSION_LEFT, leftscale, 10 * ((vspace * leftscale / (maxpeers - minpeers)) / 10), minpeers, 0x008800l, null , columns.contains("cI") ? "DOCUMENTS" : columns.contains("cR") ? "RWIs" : "PEERS");
         
         // write the data
         float x0, x1;