dc-sdk/CHANGES_en.md

# Change Log

### 2.2.2 - 2021-05-29

#### Additions 🎉

- Open some Cesium internal properties
- Add viewshed analysis
- Add contour line analysis

#### Fixes 🔧

- Improve camera general tools
- Improve the heading-pitch-roll setting of Tileset

### 2.2.1 - 2021-05-22

#### Additions 🎉

- Add camera video layer and plane video layer
- Add plane video overlay
- Add model primitive overlay

#### Fixes 🔧

- Improve the wind layer add fix the issue[#28](https://github.com/dvgis/dc-sdk/issues/28)
- Repair the problem that the auxiliary view cone of video fusion function cannot be displayed[#29](https://github.com/dvgis/dc-sdk/issues/29)
- Improve the video primitive 
- Repair the problem that the animation function cannot be used after the scene time is stoped[#31](https://github.com/dvgis/dc-sdk/issues/31)

### 2.2.0 - 2021-05-09

#### Breaking Changes 📣

- Upgrade Cesium to version 1.81.0
- Rewrite the HeatLayer

#### Additions 🎉

- Add dynamic layer
- Add dynamic model and dynamic billbard
- Add model management functions for model expansion and merging
- Add daylight 、through-view function

### 2.1.4 - 2021-04-24

#### Additions 🎉

- Add map functions for creating TMS, Grid, Mapbox, MapboxStyle
- Add clipping module, including: globe clipping, terrain clipping
- Add GroundSkyBox

#### Fixes 🔧

- Improve the plot module and fix the issue[#26](https://github.com/dvgis/dc-sdk/issues/26)
- Improve the position editor module
- Fix the FeatureGridLayer show and hide issue

### 2.1.3 - 2021-04-17

#### Additions 🎉

- Open section Cesium internal functions
- Add FeatureGridLayer

#### Fixes 🔧

- Fix the plot bugs[#24](https://github.com/dvgis/dc-sdk/issues/24)
- Rewritten logo

### 2.1.2 - 2021-04-10

#### Additions 🎉

- Add DivIcon mouse-over and mouse-out functions
- Add resolution and viewBounds properties

#### Fixes 🔧

- Fix the problem that AroundPoint and AroundView will be accelerated by multiple starts[#22](https://github.com/dvgis/dc-sdk/issues/22)
- Fix the problem that mouse events do not work when the overlay is OSGB[#23](https://github.com/dvgis/dc-sdk/issues/23)

### 2.1.1 - 2021-04-06

#### Fixes 🔧

- Repair the problem that some modules version numbers are not uniform

### 2.1.0 - 2021-04-03

#### Breaking Changes 📣

- Upgrade Cesium to version 1.80.0

#### Additions 🎉

- Add GeoTools class, mainly using Turf for overlay related calculations

#### Fixes 🔧

- Modify the HtmlLayer set show error problem
- Improve the authentication rules of accessToken

### 2.0.0 - 2021-03-27

#### Breaking Changes 📣

- Refactor the entire framework code and modularize the code
- Consolidated previously scattered modules
- Refactored the dependencies on DC in each module package
- Redeveloped the user manual
- Support for custom installation and full installation of DC

#### Additions 🎉

- Added token authentication function. Authentication can use some analysis and point editor functions
- Add support for turf module, you can get turf by `const { turf } = DC.Namespace`.

#### Fixes 🔧

- Fix location bar time delay issue
- Fixed the problem of invalid speed setting for radar scan material