can attach ChartTracer to Array1DTracer

js/module/tracer/array1d.js

@@ -39,6 +39,23 @@ class Array1DTracer extends Array2DTracer {
     return this;
   }
 
+  processStep(step, options) {
+    super.processStep(step, options);
+    if (this.chartTracer) {
+      const newStep = $.extend(true, {}, step);
+      newStep.capsule = this.chartTracer.capsule;
+      newStep.s = newStep.y || newStep.sy;
+      newStep.e = newStep.ey;
+      delete newStep.x;
+      delete newStep.y;
+      delete newStep.sx;
+      delete newStep.sy;
+      delete newStep.ex;
+      delete newStep.ey;
+      this.chartTracer.processStep(newStep, options);
+    }
+  }
+
   setData(D) {
     return super.setData([D]);
   }

js/module/tracer/tracer.js

@@ -88,8 +88,13 @@ class Tracer {
   }
 
   attach(tracer) {
-    if (tracer.module === LogTracer) {
-      this.logTracer = tracer;
+    switch (tracer.module) {
+      case LogTracer:
+        this.logTracer = tracer;
+        break;
+      case ChartTracer:
+        this.chartTracer = tracer;
+        break;
     }
     return this;
   }