Improved plotting

htroot/Network.html

@@ -388,7 +388,7 @@ document.getElementById("apilink").setAttribute("href", "Network.xml?" + window.
       scale: number of hours per scale unit in the bottom line
      -->
     <h3><b>Count of Connected Senior Peers</b> in the last two days, scale = 1h</h3>
-    <img src="/NetworkHistory.png?columns=cC&scale=1&maxtime=48" />
+    <img src="/NetworkHistory.png?columns=cC&scale=1&maxtime=48&width=809" />
     <h3><b>Count of all Active Peers Per Day</b> in the last week, scale = 1d</h3>
     <img src="/NetworkHistory.png?columns=aD&scale=24&maxtime=168" />
     <h3><b>Count of all Active Peers Per Week</b> in the last 30d, scale = 7d</h3>

htroot/NetworkHistory.java

@@ -97,8 +97,20 @@ public class NetworkHistory {
                 if (v != null && v.longValue() > 0) minpeers = Math.min(minpeers, (int) v.longValue());
             }
         }
-        maxpeers = 10 * ((maxpeers / 9 * 10) / 10);
+        if (minpeers < 0) {
-        minpeers = 10 * ((minpeers * 9 / 10) / 10);
+        	ConcurrentLog.warn("NetworkHistory", "Negative value in plot. columns:"+columns);
+        	minpeers=0;
+        }
+        if (minpeers==maxpeers) {
+        	minpeers=Math.max(0,minpeers-10);
+            maxpeers+=10;
+        }
+        if (maxpeers-minpeers > 2*minpeers) minpeers=0; // if we are close enough to zero, use zero as minimum
+        int order=(int)Math.log10(maxpeers-minpeers);
+        int scale=(int)Math.pow(10, order);
+        minpeers=(minpeers/scale)*scale;
+        maxpeers=((maxpeers/scale)+1)*scale;
+        if ((maxpeers-minpeers)/scale < 3) scale=scale/2;
         final int leftborder = 30;
         final int rightborder = 10;
         final int width = post.getInt("width", 768 + leftborder + rightborder);
@@ -107,7 +119,7 @@ public class NetworkHistory {
         final int topborder = 20;
         final int bottomborder = 20;
         final int vspace = height - topborder - bottomborder;
-        final int leftscale = 10 * (maxpeers / 100);
+        final int leftscale = scale;
         String timestr = maxtime + " HOURS";
         if (maxtime > 24 && maxtime % 24 == 0) timestr = (maxtime / 24) + " DAYS";
         if (maxtime == 168) timestr = "WEEK";
@@ -120,12 +132,14 @@ 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 PEER '" + sb.peers.myName() + "' INDEX SIZE HISTORY: NUMBER OF DOCUMENTS";
+        if (columns.contains("cI")) headline = "YACY PEER '" + sb.peers.myName().toUpperCase() + "' INDEX SIZE HISTORY: NUMBER OF DOCUMENTS";
-        if (columns.contains("cR")) headline = "YACY PEER '" + sb.peers.myName() + "' INDEX SIZE HISTORY: NUMBER OF RWI ENTRIES";
+        if (columns.contains("cR")) headline = "YACY PEER '" + sb.peers.myName().toUpperCase() + "' 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);
-        int pixelperscale = Math.max(16, hspace / (maxtime / bottomscale));
+        long pps = (long)hspace * (long)bottomscale / maxtime;
+        int pixelperscale = Math.max(8, (int)pps );
         chart.declareDimension(ChartPlotter.DIMENSION_BOTTOM, bottomscale, pixelperscale, -maxtime, 0x000000l, 0xCCCCCCl, "TIME/HOURS");
-        pixelperscale = Math.max(16, 10 * ((vspace * leftscale / (maxpeers - minpeers)) / 10));
+        pps = (long)vspace * (long)leftscale / (maxpeers-minpeers);
+        pixelperscale = Math.max(8, (int)pps );
         chart.declareDimension(ChartPlotter.DIMENSION_LEFT, leftscale, pixelperscale, minpeers, 0x008800l, null , columns.contains("cI") ? "DOCUMENTS" : columns.contains("cR") ? "RWIs" : "PEERS");
         
         // write the data

source/net/yacy/visualization/ChartPlotter.java

@@ -168,7 +168,7 @@ public class ChartPlotter extends RasterPlotter {
             }
             setColor(colorNaming);
             line(x - 3, y, x + 3, y, 100);
-            s1 = (s >= 1000000 && s % 10000 == 0) ? Integer.toString(s / 1000000) + "M" : (s >= 1000 && s % 1000 == 0) ? Integer.toString(s / 1000) + "K" : Integer.toString(s);
+            s1 = (s >= 1000000 && s % 1000000 == 0) ? Integer.toString(s / 1000000) + "M" : (s >= 1000 && s % 1000 == 0) ? Integer.toString(s / 1000) + "K" : Integer.toString(s);
             if (s1.length() > s1max) s1max = s1.length();
             PrintTool.print(this, (left) ? this.leftborder - 4 : this.width - this.rightborder + 4, y, 0, s1, (left) ? 1 : -1, 80);
             y -= pixelperscale;