diff --git a/src/traces/parcoords/axisbrush.js b/src/traces/parcoords/axisbrush.js
index e67c4c108e2..1e7cc8fcc65 100644
--- a/src/traces/parcoords/axisbrush.js
+++ b/src/traces/parcoords/axisbrush.js
@@ -78,6 +78,7 @@ function setHighlight(d) {
     if(!d.brush.filterSpecified) {
         return '0,' + d.height;
     }
+
     var pixelRanges = unitToPx(d.brush.filter.getConsolidated(), d.height);
     var dashArray = [0]; // we start with a 0 length selection as filter ranges are inclusive, not exclusive
     var p, sectionHeight, iNext;
@@ -102,7 +103,7 @@ function setHighlight(d) {
 
 function unitToPx(unitRanges, height) {
     return unitRanges.map(function(pr) {
-        return pr.map(function(v) { return v * height; }).sort(sortAsc);
+        return pr.map(function(v) { return Math.max(0, v * height); }).sort(sortAsc);
     });
 }
 
@@ -270,13 +271,6 @@ function attachDragBehavior(selection) {
                 var topViolation = Math.max(0, s.newExtent[1] - 1);
                 s.newExtent[0] += bottomViolation;
                 s.newExtent[1] -= topViolation;
-                if(s.grabbingBar) {
-                    // in case of bar dragging (non-resizing interaction, unlike north/south resize or new bar creation)
-                    // the constraint adjustment must apply to the other end of the bar as well, otherwise it'd
-                    // shorten or lengthen
-                    s.newExtent[1] += bottomViolation;
-                    s.newExtent[0] -= topViolation;
-                }
 
                 d.brush.filterSpecified = true;
                 s.extent = s.stayingIntervals.concat([s.newExtent]);
diff --git a/test/image/baselines/gl2d_parcoords_out-of-range_selected-below.png b/test/image/baselines/gl2d_parcoords_out-of-range_selected-below.png
new file mode 100644
index 00000000000..fb8c2e6902a
Binary files /dev/null and b/test/image/baselines/gl2d_parcoords_out-of-range_selected-below.png differ
diff --git a/test/image/mocks/gl2d_parcoords_out-of-range_selected-below.json b/test/image/mocks/gl2d_parcoords_out-of-range_selected-below.json
new file mode 100644
index 00000000000..27f09936bfe
--- /dev/null
+++ b/test/image/mocks/gl2d_parcoords_out-of-range_selected-below.json
@@ -0,0 +1,154 @@
+{
+    "data": [
+        {
+            "type": "parcoords",
+            "dimensions": [
+                {
+                    "label": "A+1",
+                    "range": [
+                        1,
+                        2
+                    ],
+                    "constraintrange": [
+                        1.25,
+                        1.75
+                    ],
+                    "values": [
+                        1,
+                        1.25,
+                        1.5,
+                        1.75,
+                        2
+                    ]
+                },
+                {
+                    "label": "2A",
+                    "range": [
+                        0,
+                        2
+                    ],
+                    "constraintrange": [
+                        0.5,
+                        1.5
+                    ],
+                    "values": [
+                        0,
+                        0.5,
+                        1,
+                        1.5,
+                        2
+                    ]
+                },
+                {
+                    "label": "A",
+                    "range": [
+                        0,
+                        1
+                    ],
+                    "constraintrange": [
+                        0.25,
+                        0.75
+                    ],
+                    "values": [
+                        0,
+                        0.25,
+                        0.5,
+                        0.75,
+                        1
+                    ]
+                },
+                {
+                    "label": "Above",
+                    "range": [
+                        0,
+                        1
+                    ],
+                    "constraintrange": [
+                        0.25,
+                        1.25
+                    ],
+                    "values": [
+                        0,
+                        0.25,
+                        0.5,
+                        0.75,
+                        1
+                    ]
+                },
+                {
+                    "label": "Below",
+                    "range": [
+                        0,
+                        1
+                    ],
+                    "constraintrange": [
+                        -0.25,
+                        0.75
+                    ],
+                    "values": [
+                        0,
+                        0.25,
+                        0.5,
+                        0.75,
+                        1
+                    ]
+                },
+                {
+                    "label": "2/above",
+                    "range": [
+                        0,
+                        1
+                    ],
+                    "constraintrange": [
+                        [
+                            0.25,
+                            0.5
+                        ],
+                        [
+                            0.75,
+                            1.25
+                        ]
+                    ],
+                    "values": [
+                        0,
+                        0.25,
+                        0.5,
+                        0.75,
+                        1
+                    ]
+                },
+                {
+                    "label": "2/below",
+                    "range": [
+                        0,
+                        1
+                    ],
+                    "constraintrange": [
+                        [
+                            -0.25,
+                            0.25
+                        ],
+                        [
+                            0.5,
+                            0.75
+                        ]
+                    ],
+                    "values": [
+                        0,
+                        0.25,
+                        0.5,
+                        0.75,
+                        1
+                    ]
+                }
+            ]
+        }
+    ],
+    "layout": {
+        "width": 600,
+        "height": 400,
+        "title": {
+            "text": "Should display & select constraintrange below/above ranges"
+        }
+    }
+}