Merge branch 'missing-hovering-circles-#6' into 'main'

fx points

Closes #6

See merge request chartwerk/line-pod!10

src/index.ts

@@ -181,7 +181,7 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
   }
 
   updateCrosshair(): void {
-    // Base don't know anything about crosshair circles, It is only for line pod
+    // Core doesn't know anything about crosshair circles, It is only for line pod
     this.appendCrosshairCircles();
   }
 
@@ -278,27 +278,29 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
   }
 
   getClosestIndex(datapoints: [number, number][], xValue: number, yValue: number): number {
-    let columnIdx; // 1 for y value, 0 for x value
-    let value; // xValue ot y Value
+    let columnIdx; // 0 for x value, 1 for y value,
+    let value; // xValue to y Value
     switch(this.options.crosshair.orientation) {
-      case CrosshairOrientation.HORIZONTAL:
+      case CrosshairOrientation.VERTICAL:
         columnIdx = 0;
         value = xValue;
         break;
-      case CrosshairOrientation.VERTICAL:
+      case CrosshairOrientation.HORIZONTAL:
         columnIdx = 1;
         value = yValue;
         break;
       case CrosshairOrientation.BOTH:
         // TODO: maybe use voronoi
-        columnIdx = 0;
+        columnIdx = 1;
         value = yValue;
       default:
         throw new Error(`Unknown type of crosshair orientaion: ${this.options.crosshair.orientation}`);
     }
+    
     // TODO: d3.bisect is not the best way. Use binary search
     const bisectIndex = this.d3.bisector((d: [number, number]) => d[columnIdx]).left;
     let closestIdx = bisectIndex(datapoints, value);
+
     // TODO: refactor corner cases
     if(closestIdx < 0) {
       return 0;