feat: 暴露方法给父组件，用于获取图表图片数据

src/views/backOfficeSystem/JudgmentHome/ResearchHome/components/AnalysisReport/components/histogram.vue

@@ -161,6 +161,25 @@ const initChart = () => {
     }
   }, 100);
 };
+
+// 暴露方法给父组件，用于获取图表图片数据
+defineExpose({
+  getChartImage: () => {
+    if (myChart.value) {
+      return myChart.value.getDataURL({
+        type: 'png',
+        pixelRatio: 2,
+        backgroundColor: '#fff'
+      });
+    }
+    return null;
+  },
+  resizeChart: () => {
+    if (myChart.value) {
+      myChart.value.resize();
+    }
+  }
+});
 </script>
 
 <style scoped>

src/views/backOfficeSystem/JudgmentHome/ResearchHome/components/AnalysisReport/components/maleNightingalePicture.vue

@@ -190,6 +190,25 @@ watch([
 ], () => {
   initChart();
 });
+
+// 暴露方法给父组件，用于获取图表图片数据
+defineExpose({
+  getChartImage: () => {
+    if (chartInstance.value) {
+      return chartInstance.value.getDataURL({
+        type: 'png',
+        pixelRatio: 2,
+        backgroundColor: '#fff'
+      });
+    }
+    return null;
+  },
+  resizeChart: () => {
+    if (chartInstance.value) {
+      chartInstance.value.resize();
+    }
+  }
+});
 </script>
 <style scoped>
 :deep(div) {