Fix for issue 274: broken step plots

diff --git a/dygraph-canvas.js b/dygraph-canvas.js
index 9b2be25..9c2e4da 100644 (file)
--- a/dygraph-canvas.js
+++ b/dygraph-canvas.js
@@ -875,6 +875,7 @@ DygraphCanvasRenderer.prototype._renderLineChart = function() {
             ctx.lineWidth = strokeWidth;
             if (stepPlot) {
               this._dashedLine(ctx, prevX, prevY, point.canvasx, prevY, strokePattern);
+              prevX = point.canvasx;
             }
             this._dashedLine(ctx, prevX, prevY, point.canvasx, point.canvasy, strokePattern);
             prevX = point.canvasx;