diff -r 000000000000 -r bca7a7e058a3 src/pyams_skin/resources/js/ext/flot/jquery.flot.symbol.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_skin/resources/js/ext/flot/jquery.flot.symbol.js	Thu Feb 13 11:43:31 2020 +0100
@@ -0,0 +1,98 @@
+/* Flot plugin that adds some extra symbols for plotting points.
+
+Copyright (c) 2007-2014 IOLA and Ole Laursen.
+Licensed under the MIT license.
+
+The symbols are accessed as strings through the standard symbol options:
+
+    series: {
+        points: {
+            symbol: "square" // or "diamond", "triangle", "cross", "plus", "ellipse", "rectangle"
+        }
+    }
+
+*/
+
+(function ($) {
+    // we normalize the area of each symbol so it is approximately the
+    // same as a circle of the given radius
+
+    var square = function (ctx, x, y, radius, shadow) {
+            // pi * r^2 = (2s)^2  =>  s = r * sqrt(pi)/2
+            var size = radius * Math.sqrt(Math.PI) / 2;
+            ctx.rect(x - size, y - size, size + size, size + size);
+        },
+        rectangle = function (ctx, x, y, radius, shadow) {
+            // pi * r^2 = (2s)^2  =>  s = r * sqrt(pi)/2
+            var size = radius * Math.sqrt(Math.PI) / 2;
+            ctx.rect(x - size, y - size, size + size, size + size);
+        },
+        diamond = function (ctx, x, y, radius, shadow) {
+            // pi * r^2 = 2s^2  =>  s = r * sqrt(pi/2)
+            var size = radius * Math.sqrt(Math.PI / 2);
+            ctx.moveTo(x - size, y);
+            ctx.lineTo(x, y - size);
+            ctx.lineTo(x + size, y);
+            ctx.lineTo(x, y + size);
+            ctx.lineTo(x - size, y);
+            ctx.lineTo(x, y - size);
+        },
+        triangle = function (ctx, x, y, radius, shadow) {
+            // pi * r^2 = 1/2 * s^2 * sin (pi / 3)  =>  s = r * sqrt(2 * pi / sin(pi / 3))
+            var size = radius * Math.sqrt(2 * Math.PI / Math.sin(Math.PI / 3));
+            var height = size * Math.sin(Math.PI / 3);
+            ctx.moveTo(x - size / 2, y + height / 2);
+            ctx.lineTo(x + size / 2, y + height / 2);
+            if (!shadow) {
+                ctx.lineTo(x, y - height / 2);
+                ctx.lineTo(x - size / 2, y + height / 2);
+                ctx.lineTo(x + size / 2, y + height / 2);
+            }
+        },
+        cross = function (ctx, x, y, radius, shadow) {
+            // pi * r^2 = (2s)^2  =>  s = r * sqrt(pi)/2
+            var size = radius * Math.sqrt(Math.PI) / 2;
+            ctx.moveTo(x - size, y - size);
+            ctx.lineTo(x + size, y + size);
+            ctx.moveTo(x - size, y + size);
+            ctx.lineTo(x + size, y - size);
+        },
+        ellipse = function(ctx, x, y, radius, shadow, fill) {
+            if (!shadow) {
+                ctx.moveTo(x + radius, y);
+                ctx.arc(x, y, radius, 0, Math.PI * 2, false);
+            }
+        },
+        plus = function (ctx, x, y, radius, shadow) {
+            var size = radius * Math.sqrt(Math.PI / 2);
+            ctx.moveTo(x - size, y);
+            ctx.lineTo(x + size, y);
+            ctx.moveTo(x, y + size);
+            ctx.lineTo(x, y - size);
+        },
+        handlers = {
+            square: square,
+            rectangle: rectangle,
+            diamond: diamond,
+            triangle: triangle,
+            cross: cross,
+            ellipse: ellipse,
+            plus: plus
+        };
+
+    square.fill = true;
+    rectangle.fill = true;
+    diamond.fill = true;
+    triangle.fill = true;
+    ellipse.fill = true;
+
+    function init(plot) {
+        plot.drawSymbol = handlers;
+    }
+
+    $.plot.plugins.push({
+        init: init,
+        name: 'symbols',
+        version: '1.0'
+    });
+})(jQuery);