diff --git a/bar_chart.go b/bar_chart.go
index e008baf..32373b1 100644
--- a/bar_chart.go
+++ b/bar_chart.go
@@ -98,7 +98,7 @@ func barChartRender(opt barChartOption, result *basicRenderResult) ([]markPointR
 		})
 		divideValues := xRange.AutoDivide()
 		for j, item := range series.Data {
-			if j >= len(divideValues) {
+			if j >= xRange.divideCount {
 				continue
 			}
 			x := divideValues[j]
diff --git a/examples/charts/main.go b/examples/charts/main.go
index e10c7c0..cac7c10 100644
--- a/examples/charts/main.go
+++ b/examples/charts/main.go
@@ -423,6 +423,7 @@ func indexHandler(w http.ResponseWriter, req *http.Request) {
 						20.0,
 						6.4,
 						3.3,
+						10.2,
 					}),
 					YAxisIndex: 1,
 				},
@@ -441,6 +442,7 @@ func indexHandler(w http.ResponseWriter, req *http.Request) {
 						18.8,
 						6.0,
 						2.3,
+						20.2,
 					}),
 					YAxisIndex: 1,
 				},
@@ -458,6 +460,7 @@ func indexHandler(w http.ResponseWriter, req *http.Request) {
 						16.5,
 						12.0,
 						6.2,
+						30.3,
 					}),
 				},
 			},
diff --git a/line_chart.go b/line_chart.go
index 78790d3..c51997f 100644
--- a/line_chart.go
+++ b/line_chart.go
@@ -63,7 +63,7 @@ func lineChartRender(opt lineChartOption, result *basicRenderResult) ([]markPoin
 		seriesColor := theme.GetSeriesColor(index)
 
 		yRange := result.getYRange(series.YAxisIndex)
-		points := make([]Point, len(series.Data))
+		points := make([]Point, 0, len(series.Data))
 		// mark line
 		markLineRender(markLineRenderOption{
 			Draw:        d,
@@ -76,12 +76,15 @@ func lineChartRender(opt lineChartOption, result *basicRenderResult) ([]markPoin
 		})
 
 		for j, item := range series.Data {
+			if j >= xRange.divideCount {
+				continue
+			}
 			y := yRange.getRestHeight(item.Value)
 			x := xRange.getWidth(float64(j))
-			points[j] = Point{
+			points = append(points, Point{
 				Y: y,
 				X: x,
-			}
+			})
 			if !series.Label.Show {
 				continue
 			}