From: Philipp Klaus <klaus@physik.uni-frankfurt.de>
Date: Tue, 12 Sep 2017 16:09:21 +0000 (+0200)
Subject: DASH: sparklines y-axis extent now depends on HOPR/LOPR
X-Git-Url: https://jspc29.x-matter.uni-frankfurt.de/git/?a=commitdiff_plain;h=f02c0da89117aa0cd2061d5b9c37babdd26c34eb;p=mvd_epics.git

DASH: sparklines y-axis extent now depends on HOPR/LOPR
---

diff --git a/python_suite/dashboard/static/js/sparkline.js b/python_suite/dashboard/static/js/sparkline.js
index e17f7d1..4d6ba3c 100644
--- a/python_suite/dashboard/static/js/sparkline.js
+++ b/python_suite/dashboard/static/js/sparkline.js
@@ -11,6 +11,9 @@ function sparkline() {
   var width = 200;
   var height = 40;
   var precision = null;
+  var y_extent = null;
+  var upper_disp_limit = null;
+  var lower_disp_limit = null;
   var dataSource = '';
   var dataSourceType = '';
   var selector = 'body';
@@ -36,6 +39,24 @@ function sparkline() {
     return chart;
   };
 
+  chart.y_extent = function(value) {
+    if (!arguments.length) return y_extent;
+    y_extent = value;
+    return chart;
+  };
+
+  chart.upper_disp_limit = function(value) {
+    if (!arguments.length) return upper_disp_limit;
+    upper_disp_limit = value;
+    return chart;
+  };
+
+  chart.lower_disp_limit = function(value) {
+    if (!arguments.length) return lower_disp_limit;
+    lower_disp_limit = value;
+    return chart;
+  };
+
   chart.dataSource = function(value) {
     if (!arguments.length) return dataSource;
     dataSource = value;
@@ -117,10 +138,22 @@ function sparkline() {
       d3.json(chart.dataSource(), function(error, json) {
         if (error) return drawChart(error, json);
         chart.precision(json.precision);
+        chart.upper_disp_limit(json.upper_disp_limit);
+        chart.lower_disp_limit(json.lower_disp_limit);
+        calculateExtent(json.history);
         drawChart(error, json.history);
       });
     }
 
+    function calculateExtent(data) {
+      if ((upper_disp_limit !== null) && (lower_disp_limit !== null))
+        y_extent = [lower_disp_limit, upper_disp_limit];
+      else {
+        y_extent = d3.extent(data, function (d) { return d[1]; });
+        if (y_extent[0] == y_extent[1]) y_extent = [ y_extent[0]-.5, y_extent[0]+.5];
+      }
+    }
+
     /*
     * formats chart data and appends the sparkline
     */
@@ -134,9 +167,7 @@ function sparkline() {
 
       // Scale the range of the data
       x.domain(d3.extent(data, function (d) { return d[0]; }));
-      var extent = d3.extent(data, function (d) { return d[1]; });
-      if (extent[0] == extent[1]) extent = [ extent[0]-.5, extent[0]+.5];
-      y.domain(extent);
+      y.domain(y_extent);
 
 
       // Add the valueline path.