drop pixel skipping optimization w/ annotations, too

[dygraphs.git] / dygraph-canvas.js

diff --git a/dygraph-canvas.js b/dygraph-canvas.js
index 4606dfb..04c53b8 100644 (file)
--- a/dygraph-canvas.js
+++ b/dygraph-canvas.js
@@ -786,7 +786,9 @@ DygraphCanvasRenderer.prototype._renderLineChart = function() {
             prevX = point.canvasx;
             prevY = point.canvasy;
           } else {
-            // TODO(danvk): figure out why this conditional is necessary.
+            // TODO(antrob): skip over points that lie on a line that is already
+            // going to be drawn. There is no need to have more than 2
+            // consecutive points that are collinear.
             if (strokeWidth) {
               ctx.beginPath();
               ctx.strokeStyle = color;