diff --git a/ArchitectureColoredPainting/src/Editor/util/PaintingUtil.cpp b/ArchitectureColoredPainting/src/Editor/util/PaintingUtil.cpp
index 93cf184..a46ffa4 100644
--- a/ArchitectureColoredPainting/src/Editor/util/PaintingUtil.cpp
+++ b/ArchitectureColoredPainting/src/Editor/util/PaintingUtil.cpp
@@ -41,7 +41,8 @@ Painting PaintingUtil::transfromToPainting(QString jsonFilePath) {
 	shared_ptr<LayerManager> layerManager = make_shared<LayerManager>(jsonObj, elementManager.get());
 	LayerWrapper* root = layerManager->getRoot();
 	root->getCache();
-	handleLayerWrapper(root, QTransform(), painting, contourMap, QSize(jsonObj.value("width").toVariant().value<int>(), jsonObj.value("height").toVariant().value<int>()));
+	double maxWidth = getMaxLineWidth(root, QTransform());
+	handleLayerWrapper(root, QTransform(), painting, maxWidth, contourMap, QSize(jsonObj.value("width").toVariant().value<int>(), jsonObj.value("height").toVariant().value<int>()));
 	clear();
 	return painting;
 	//qDebug() << elementManager->toJson();
@@ -70,7 +71,7 @@ Painting PaintingUtil::transfromToPainting(QString jsonFilePath) {
 
 }
 
-void PaintingUtil::handleLayerWrapper(LayerWrapper* nowLayer, QTransform transform, Painting& painting, std::unordered_map<LayerWrapper*, Contour>& contourMap, const QSize& screenSize) {
+void PaintingUtil::handleLayerWrapper(LayerWrapper* nowLayer, QTransform transform, Painting& painting, double& maxWidth, std::unordered_map<LayerWrapper*, Contour>& contourMap, const QSize& screenSize) {
 	LeafLayerWrapper* leafLayer = dynamic_cast<LeafLayerWrapper*>(nowLayer);
 	qDebug() << nowLayer;
 
@@ -80,7 +81,7 @@ void PaintingUtil::handleLayerWrapper(LayerWrapper* nowLayer, QTransform transfo
 
 		GroupElement* wrapperElement = dynamic_cast<GroupElement*>(leafLayer->wrappedElement);
 		if (wrapperElement != nullptr) {
-			handleLayerWrapper(wrapperElement->sourceLayer, transform, painting, contourMap, screenSize);
+			handleLayerWrapper(wrapperElement->sourceLayer, transform, painting, maxWidth, contourMap, screenSize);
 			return;
 		}
 
@@ -90,7 +91,7 @@ void PaintingUtil::handleLayerWrapper(LayerWrapper* nowLayer, QTransform transfo
 		//qDebug() << leafLayer<<"------" << painterPath;
 		// transform to -1£¬ 1
 		QTransform trans;
-		double maxLen = std::max(bound.width(), bound.height()) * 1.00001 * 2;
+		double maxLen = (std::max(bound.width(), bound.height()) + 2 * maxWidth) * 1.00001 * 2;
 		//qDebug() << maxLen << bound;
 		trans.scale(1 / maxLen, 1 / maxLen);
 		trans.translate(-bound.center().x(), -bound.center().y());
@@ -157,8 +158,60 @@ void PaintingUtil::handleLayerWrapper(LayerWrapper* nowLayer, QTransform transfo
 	FolderLayerWrapper* folderLayer = dynamic_cast<FolderLayerWrapper*>(nowLayer);
 	if (folderLayer != nullptr) {
 		for (auto sonLayer : folderLayer->children) {
-			handleLayerWrapper(sonLayer.get(), transform, painting, contourMap, screenSize);
+			handleLayerWrapper(sonLayer.get(), transform, painting, maxWidth, contourMap, screenSize);
 		}
 	}
 	return;
+}
+
+double PaintingUtil::getMaxLineWidth(LayerWrapper* nowLayer, QTransform transform) {
+	LeafLayerWrapper* leafLayer = dynamic_cast<LeafLayerWrapper*>(nowLayer);
+	transform = nowLayer->property.transform * transform;
+
+	double maxWidth = 0;
+	if (leafLayer != nullptr) {
+
+		GroupElement* wrapperElement = dynamic_cast<GroupElement*>(leafLayer->wrappedElement);
+		if (wrapperElement != nullptr) {
+			return getMaxLineWidth(wrapperElement->sourceLayer, transform);
+		}
+
+		PixelPath pixelPath = nowLayer->getCache();
+		QPainterPath painterPath = pixelPath.originPath;
+		QRectF bound = painterPath.boundingRect();
+		//qDebug() << maxLen << bound;
+		// 
+		//++zIndexCount;
+		auto baseStyles = leafLayer->styles->toBaseStyles();
+		qDebug() << baseStyles.size();
+		for (auto& baseStyle : std::views::reverse(baseStyles)) {
+			double lineWidth = 0;
+			QPainterPath path;
+
+			std::shared_ptr<MaterialStyle> material;
+
+			if (baseStyle.material->type() == Renderer::MaterialStyleType::kStroke) {
+				qDebug() << "MaterialStyleType::kStroke";
+				std::shared_ptr copy = baseStyle.material->clone();
+				lineWidth = std::static_pointer_cast<MaterialStyleStroke>(copy)->halfWidth;
+				maxWidth = std::max(maxWidth, lineWidth);
+			}
+			else
+			{
+				qDebug() << "MaterialStyleType::kFill";
+				material = baseStyle.material;
+				path = painterPath;
+			}
+		}
+
+		return maxWidth;
+	}
+
+	FolderLayerWrapper* folderLayer = dynamic_cast<FolderLayerWrapper*>(nowLayer);
+	if (folderLayer != nullptr) {
+		for (auto sonLayer : folderLayer->children) {
+			maxWidth = std::max(maxWidth, getMaxLineWidth(sonLayer.get(), transform));
+		}
+	}
+	return maxWidth;
 }
\ No newline at end of file
diff --git a/ArchitectureColoredPainting/src/Editor/util/PaintingUtil.h b/ArchitectureColoredPainting/src/Editor/util/PaintingUtil.h
index 2e6258b..76517cb 100644
--- a/ArchitectureColoredPainting/src/Editor/util/PaintingUtil.h
+++ b/ArchitectureColoredPainting/src/Editor/util/PaintingUtil.h
@@ -12,8 +12,8 @@ private:
 	static void clear();
 	//static const double pi;
 	static QJsonObject readJsonFile(QString jsonFilePath);
-	static void handleLayerWrapper(LayerWrapper* nowLayer, QTransform transform, Renderer::Painting& painting, std::unordered_map<LayerWrapper*, Contour>& contourMap, const QSize& screenSize);
-	//static double getMaxLineWidth(LayerWrapper* root);
+	static void handleLayerWrapper(LayerWrapper* nowLayer, QTransform transform, Renderer::Painting& painting, double &maxWidth, std::unordered_map<LayerWrapper*, Contour>& contourMap, const QSize& screenSize);
+	static double getMaxLineWidth(LayerWrapper* nowLayer, QTransform transform);
 public:
 	static Renderer::Painting transfromToPainting(QString jsonFilePath);
 };