diff --git a/app/src/main/java/clock/socoolby/com/clock/widget/animatorview/animator/clockanimator/CubicOvalLineClock.java b/app/src/main/java/clock/socoolby/com/clock/widget/animatorview/animator/clockanimator/CubicOvalLineClock.java
new file mode 100644
index 0000000..1efc572
--- /dev/null
+++ b/app/src/main/java/clock/socoolby/com/clock/widget/animatorview/animator/clockanimator/CubicOvalLineClock.java
@@ -0,0 +1,10 @@
+package clock.socoolby.com.clock.widget.animatorview.animator.clockanimator;
+
+//三次卵形线 https://baike.baidu.com/item/卵形线/5147382
+//公式：已知卵形线的长、短、对称半径a、b、c这三个特征参数，在平面直角坐标系中，以卵形线的对称轴作为x轴，x轴正向与卵形线小头方向一致，卵形线的卵心作为坐标系原点．以正数a、b、c(a>b)为长、短、对称半径的卵形线在直角坐标系中示意图如图2所示。其三次卵形方程为
+//    x^2           y^2
+//------------- + -------- = 1
+//(a-b)x + ab       c^2
+
+public class CubicOvalLineClock {
+}
diff --git a/screenshot/device-adv.png b/screenshot/device-adv.png
new file mode 100644
index 0000000..fcbe3fa
Binary files /dev/null and b/screenshot/device-adv.png differ
diff --git a/screenshot/device-base-image.png b/screenshot/device-base-image.png
new file mode 100644
index 0000000..f439390
Binary files /dev/null and b/screenshot/device-base-image.png differ
diff --git a/screenshot/device-base.png b/screenshot/device-base.png
new file mode 100644
index 0000000..9ddc986
Binary files /dev/null and b/screenshot/device-base.png differ
diff --git a/screenshot/device-full-clock.png b/screenshot/device-full-clock.png
new file mode 100644
index 0000000..03f7acd
Binary files /dev/null and b/screenshot/device-full-clock.png differ
diff --git a/screenshot/device-full.png b/screenshot/device-full.png
new file mode 100644
index 0000000..be7c7c6
Binary files /dev/null and b/screenshot/device-full.png differ