From: Philipp Klaus <klaus@physik.uni-frankfurt.de>
Date: Thu, 24 Aug 2017 11:40:06 +0000 (+0200)
Subject: DASH: properly plot horizontal lines
X-Git-Url: https://jspc29.x-matter.uni-frankfurt.de/git/?a=commitdiff_plain;h=2602676664f7d3e552790a5904894474688d1b0f;p=mvd_epics.git

DASH: properly plot horizontal lines
---

diff --git a/python_suite/dashboard/static/js/sparkline.js b/python_suite/dashboard/static/js/sparkline.js
index c4bc8a0..c3a1e3e 100644
--- a/python_suite/dashboard/static/js/sparkline.js
+++ b/python_suite/dashboard/static/js/sparkline.js
@@ -90,6 +90,7 @@ function sparkline() {
           .attr("y1", "0%")   // starting y point
           .attr("x2", "0%")   // ending x point
           .attr("y2", "100%") // ending y point
+          .attr("gradientUnits", "userSpaceOnUse")
           .attr("spreadMethod", "pad");
 
       chart.gradientColors().forEach(function (color, index) {
@@ -124,7 +125,9 @@ function sparkline() {
 
       // Scale the range of the data
       x.domain(d3.extent(data, function (d) { return d[0]; }));
-      y.domain(d3.extent(data, function (d) { return d[1]; }));
+      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);
 
 
       // Add the valueline path.