snapshot.

yaxis.go

@@ -0,0 +1,28 @@
+package chart
+
+// YAxis is a veritcal rule of the range.
+// There can be (2) y-axes; a primary and secondary.
+type YAxis struct {
+	axis
+}
+
+// Render renders the axis.
+func (ya YAxis) Render(r Renderer, canvasBox Box, ra Range, axisType YAxisType) {
+	var tx int
+	if axisType == YAxisPrimary {
+		tx = canvasBox.Right + DefaultYAxisMargin
+	} else if axisType == YAxisSecondary {
+		tx = canvasBox.Left - DefaultYAxisMargin
+	}
+
+	r.SetFontColor(ya.Style.GetFontColor(DefaultAxisColor))
+	r.SetFontSize(ya.Style.GetFontSize(DefaultFontSize))
+
+	ticks := ya.getTicks(ra)
+	for _, t := range ticks {
+		v := t.Value
+		y := ra.Translate(v)
+		ty := int(y)
+		r.Text(t.Label, tx, ty)
+	}
+}