diff --git a/ArchitectureColoredPainting/res/Shaders/element.comp b/ArchitectureColoredPainting/res/Shaders/element.comp
index e215250..eb74677 100644
--- a/ArchitectureColoredPainting/res/Shaders/element.comp
+++ b/ArchitectureColoredPainting/res/Shaders/element.comp
@@ -917,6 +917,7 @@ float getLocalWidth(float t, vec2 lengthRate, float originWidth, uint widthMapSi
         if (currentLengthRate <= level)
         {
             float a = (currentLengthRate - lastLevel) / (level - lastLevel);
+            a = smoothstep(0,1,a);
             width = mix(lastWidth, currentWidth, a);
             found = true;
             break;
diff --git a/UnitTest/ElementRendererTest.cpp b/UnitTest/ElementRendererTest.cpp
index 5356603..981c0b0 100644
--- a/UnitTest/ElementRendererTest.cpp
+++ b/UnitTest/ElementRendererTest.cpp
@@ -253,27 +253,27 @@ namespace UnitTest
 			w.show();
 			a.exec();
 		}
-		TEST_METHOD(TestBothSidesGradientWidth)
+		TEST_METHOD(TestGradientWidth)
 		{
 			/*QPainterPath testPath;
 			testPath.moveTo(50, 50);
 			testPath.cubicTo(50, 200, 200, 300, 300, 300);*/
 			QPainterPath testPath;
-			SvgFileLoader().loadSvgFile("../../svg/3.svg", testPath);
-			testPath = QTransform::fromScale(10, 10).map(testPath);
+			SvgFileLoader().loadSvgFile("../../svg/3_2.svg", testPath);
+			testPath = QTransform::fromScale(3, 3).map(testPath);
 			QApplication a(argc, argv);
 			class StyleStrokeRadialGradient : public Renderer::ElementStyle
 			{
 				virtual std::vector<Renderer::BaseStyle> toBaseStyles() const override
 				{
 					std::map<float, Material> materialMap = {
-						{0.20, Material{QColor(255,255,255)}},
-						{0.60, Material{QColor(165,176,207)}},
-						{1.00, Material{QColor(58,64,151)}}
+						{0.40, Material{QColor(58,64,151)}},
+						{0.80, Material{QColor(165,176,207)}},
+						{1.00, Material{QColor(255,255,255)}}
 					};
 					return { BaseStyle(std::make_shared<TransformStyle>(),
-						std::make_shared<MaterialStyleStroke>(90, StrokeType::kRightSide, StrokeEndType::kFlatRound,
-							std::make_shared<StrokeRadialGradient>(materialMap, false), std::map<float, float>{ {0.6,1},{0.8, 0.8},{0.94,0.6}, {0.96,0.6},{0.97,0.4},{1,0.1}})) };
+						std::make_shared<MaterialStyleStroke>(80, StrokeType::kLeftSide, StrokeEndType::kFlatRound,
+							std::make_shared<StrokeRadialGradient>(materialMap, false), std::map<float, float>{ {0,1}, {0.95, 0.8},{1,0}})) };
 				}
 			} style;
 			TestGLWidget w(style, testPath);
diff --git a/svg/3_2.svg b/svg/3_2.svg
new file mode 100644
index 0000000..e74b429
--- /dev/null
+++ b/svg/3_2.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 38.66 57"><defs><style>.cls-1{fill:none;stroke:#fff;stroke-miterlimit:10;}</style></defs><g id="图层_2" data-name="图层 2"><g id="图层_1-2" data-name="图层 1"><path class="cls-1" d="M.81,0C.12,12.47.64,23.24,1.87,29.9c1.85,10,3.32,18,10.21,22.72,5.59,3.83,15.45,6,21.45.77,2.53-2.22,4.92-5.91,4.6-10a9.27,9.27,0,0,0-2-5.55,1.84,1.84,0,0,0-2.16-.51c-.67.36-1.39,1.08-1.11,1.79s1.81,1,2.85.59"/></g></g></svg>
\ No newline at end of file