From f89078bfddfd6ab85b39cd3130cba5b34db53021 Mon Sep 17 00:00:00 2001
From: means88 <kk2505061@gmail.com>
Date: Tue, 28 Mar 2017 16:24:09 +0800
Subject: [PATCH 1/2] fix render problem of empty data

---
 src/index.js | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/src/index.js b/src/index.js
index ae3357a..7affbe9 100644
--- a/src/index.js
+++ b/src/index.js
@@ -23,6 +23,12 @@ export default function createG2(__operation) {
       const { data: newData, width: newWidth, height: newHeight, plotCfg: newPlotCfg } = newProps;
       const { data: oldData, width: oldWidth, height: oldHeight, plotCfg: oldPlotCfg } = this.props;
 
+      if (oldData.length === 0 && newData.length > 0) {
+        this.destroyChart();
+        this.initChart(newProps);
+        return;
+      }
+
       if (newPlotCfg !== oldPlotCfg) {
         console.warn('plotCfg 不支持修改');
       }
@@ -40,9 +46,7 @@ export default function createG2(__operation) {
     }
 
     componentWillUnmount() {
-      this.chart.destroy();
-      this.chart = null;
-      this.chartId = null;
+      this.destroyChart();
     }
 
     initChart(props) {
@@ -58,6 +62,14 @@ export default function createG2(__operation) {
       this.chart = chart;
     }
 
+    destroyChart() {
+      if (this.chart) {
+        this.chart.destroy();
+      }
+      this.chart = null;
+      this.chartId = null;
+    }
+
     render() {
       return (<div id={this.chartId} />);
     }

From 0863aa3dcc782a247f5f264aa508b99453942eb8 Mon Sep 17 00:00:00 2001
From: means88 <kk2505061@gmail.com>
Date: Tue, 28 Mar 2017 16:36:56 +0800
Subject: [PATCH 2/2] remove chartId before unmount

---
 src/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/index.js b/src/index.js
index 7affbe9..e1e51b1 100644
--- a/src/index.js
+++ b/src/index.js
@@ -47,6 +47,7 @@ export default function createG2(__operation) {
 
     componentWillUnmount() {
       this.destroyChart();
+      this.chartId = null;
     }
 
     initChart(props) {
@@ -67,7 +68,6 @@ export default function createG2(__operation) {
         this.chart.destroy();
       }
       this.chart = null;
-      this.chartId = null;
     }
 
     render() {