Initial OpenECOMP Portal commit

[portal.git] / ecomp-portal-BE / war / static / fusion / d3 / js / fisheye.js

diff --git a/ecomp-portal-BE/war/static/fusion/d3/js/fisheye.js b/ecomp-portal-BE/war/static/fusion/d3/js/fisheye.js
new file mode 100644 (file)
index 0000000..e1addd7
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+++ b/ecomp-portal-BE/war/static/fusion/d3/js/fisheye.js
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+(function() {
+  d3.fisheye = {
+    scale: function(scaleType) {
+      return d3_fisheye_scale(scaleType(), 3, 0);
+    },
+    circular: function() {
+      var radius = 200,
+          distortion = 2,
+          k0,
+          k1,
+          focus = [0, 0];
+
+      function fisheye(d) {
+        var dx = d.x - focus[0],
+            dy = d.y - focus[1],
+            dd = Math.sqrt(dx * dx + dy * dy);
+        if (!dd || dd >= radius) return {x: d.x, y: d.y, z: 1};
+        var k = k0 * (1 - Math.exp(-dd * k1)) / dd * .75 + .25;
+        return {x: focus[0] + dx * k, y: focus[1] + dy * k, z: Math.min(k, 10)};
+      }
+
+      function rescale() {
+        k0 = Math.exp(distortion);
+        k0 = k0 / (k0 - 1) * radius;
+        k1 = distortion / radius;
+        return fisheye;
+      }
+
+      fisheye.radius = function(_) {
+        if (!arguments.length) return radius;
+        radius = +_;
+        return rescale();
+      };
+
+      fisheye.distortion = function(_) {
+        if (!arguments.length) return distortion;
+        distortion = +_;
+        return rescale();
+      };
+
+      fisheye.focus = function(_) {
+        if (!arguments.length) return focus;
+        focus = _;
+        return fisheye;
+      };
+
+      return rescale();
+    }
+  };
+
+  function d3_fisheye_scale(scale, d, a) {
+
+    function fisheye(_) {
+      var x = scale(_),
+          left = x < a,
+          v,
+          range = d3.extent(scale.range()),
+          min = range[0],
+          max = range[1],
+          m = left ? a - min : max - a;
+      if (m == 0) m = max - min;
+      return (left ? -1 : 1) * m * (d + 1) / (d + (m / Math.abs(x - a))) + a;
+    }
+
+    fisheye.distortion = function(_) {
+      if (!arguments.length) return d;
+      d = +_;
+      return fisheye;
+    };
+
+    fisheye.focus = function(_) {
+      if (!arguments.length) return a;
+      a = +_;
+      return fisheye;
+    };
+
+    fisheye.copy = function() {
+      return d3_fisheye_scale(scale.copy(), d, a);
+    };
+
+    fisheye.nice = scale.nice;
+    fisheye.ticks = scale.ticks;
+    fisheye.tickFormat = scale.tickFormat;
+    return d3.rebind(fisheye, scale, "domain", "range");
+  }
+})();