change the log

CHANGES_en.md

 # Change Log
 
+### 2.8.0 - 2021-12-04
+
+#### Breaking Changes 📣
+
+- Upgrade Cesium to version 1.88.0
+
+#### Additions 🎉
+
+- Add ground primitive layer
+- Add both replacement and append FS modes for 3Dtiles
+- Add water primitive holes param
+- Add hot layer support for classificationType
+
+#### Fixes 🔧
+
+- Improve the function of clearing or removing the primitive layer 
+- Improve the history track function
+
 ### 2.7.0 - 2021-11-13
 
 #### Breaking Changes 📣
 
 #### Additions 🎉
 
-- Added overlay clouds
+- Add overlay clouds
 - Add get LayerGroup function
 
 #### Fixes 🔧
 
 #### Additions 🎉
 
-- Added support for layer mouse events [#53](https://github.com/dvgis/dc-sdk/issues/54)
+- Add support for layer mouse events [#53](https://github.com/dvgis/dc-sdk/issues/54)
 - Add partial mouse default events [#54](https://github.com/dvgis/dc-sdk/issues/54)
 - Add function to get tile information
 

CHANGES_zh.md

 # Change Log
 
+### 2.8.0 - 2021-12-04
+
+#### Breaking Changes 📣
+
+- 升级 Cesium 到 1.88.0 版本
+
+#### Additions 🎉
+
+- 添加贴地图元图层
+- 添加3Dtiles的替换和追加片元着色器两种模式
+- 添加水面图元洞面参数
+- 添加热区图层对贴地的支持
+
+#### Fixes 🔧
+
+- 完善图元图层清除或移除功能
+- 完善历史轨迹功能
+
 ### 2.7.0 - 2021-11-13
 
 #### Breaking Changes 📣

modules/overlay/primitive/GroundPolylinePrimitive.js

+/**
+ * @Author: Caven
+ * @Date: 2021-12-01 20:31:02
+ */
+
+class GroundPolylinePrimitive {}
+
+export default GroundPolylinePrimitive

package.json

 {
   "name": "dc-sdk",
-  "version": "2.7.0",
+  "version": "2.8.0",
   "description": "The SDK is based on Cesium for secondary development of 2, 3D all-in-one WebGis application framework, the framework optimizes the use of Cesium and add some additional features, designed for developers to quickly build WebGis applications.",
   "repository": "https://github.com/dvgis/dc-sdk.git",
   "homepage": "https://www.dvgis.cn",

packages/base/package.json

 {
 	"name": "@dvgis/dc-base",
-	"version": "2.7.0",
+	"version": "2.8.0",
 	"description": "The SDK is based on Cesium for secondary development of 2, 3D all-in-one WebGis application framework, the framework optimizes the use of Cesium and add some additional features, designed for developers to quickly build WebGis applications.",
 	"repository": "https://github.com/dvgis/dc-sdk.git",
 	"homepage": "https://www.dvgis.cn",

packages/chart/package.json

 {
 	"name": "@dvgis/dc-chart",
-	"version": "2.7.0",
+	"version": "2.8.0",
 	"description": "The SDK is based on Cesium for secondary development of 2, 3D all-in-one WebGis application framework, the framework optimizes the use of Cesium and add some additional features, designed for developers to quickly build WebGis applications.",
 	"repository": "https://github.com/dvgis/dc-sdk.git",
 	"homepage": "https://www.dvgis.cn",
 	"license": "Apache 2.0",
 	"main": "dist/dc.chart.min.js",
 	"peerDependencies": {
-		"@dvgis/dc-base": "^2.7.0"
+		"@dvgis/dc-base": "^2.8.0"
 	},
 	"files": [
 		"dist"

packages/core/package.json

 {
 	"name": "@dvgis/dc-core",
-	"version": "2.7.0",
+	"version": "2.8.0",
 	"description": "The SDK is based on Cesium for secondary development of 2, 3D all-in-one WebGis application framework, the framework optimizes the use of Cesium and add some additional features, designed for developers to quickly build WebGis applications.",
 	"repository": "https://github.com/dvgis/dc-sdk.git",
 	"homepage": "https://www.dvgis.cn",
 	"license": "Apache 2.0",
 	"main": "dist/dc.core.min.js",
 	"peerDependencies": {
-		"@dvgis/dc-base": "^2.7.0"
+		"@dvgis/dc-base": "^2.8.0"
 	},
 	"files": [
 		"dist"

packages/mapv/package.json

 {
 	"name": "@dvgis/dc-mapv",
-	"version": "2.7.0",
+	"version": "2.8.0",
 	"description": "The SDK is based on Cesium for secondary development of 2, 3D all-in-one WebGis application framework, the framework optimizes the use of Cesium and add some additional features, designed for developers to quickly build WebGis applications.",
 	"repository": "https://github.com/dvgis/dc-sdk.git",
 	"homepage": "https://www.dvgis.cn",
 	"license": "Apache 2.0",
 	"main": "dist/dc.mapv.js",
 	"peerDependencies": {
-		"@dvgis/dc-base": "^2.7.0"
+		"@dvgis/dc-base": "^2.8.0"
 	},
 	"files": [
 		"dist"

packages/sdk/package.json

 {
 	"name": "@dvgis/dc-sdk",
-	"version": "2.7.0",
+	"version": "2.8.0",
 	"description": "The SDK is based on Cesium for secondary development of 2, 3D all-in-one WebGis application framework, the framework optimizes the use of Cesium and add some additional features, designed for developers to quickly build WebGis applications.",
 	"repository": "https://github.com/dvgis/dc-sdk.git",
 	"homepage": "https://www.dvgis.cn",