# Project
## 1 New
When starting a new project, you can create a single-origin project using OSGB and OBJ data or simultaneously load multiple OSGB and OBJ data to create a multi-origin project.
### Project Setting
* **Project Name**: User Custom.
* **Project Path**: User Custom.
* **OSGB Path**: Include the tile data file and metadata.xml.
* **OBJ Path**: Include the tile data file and metadata.xml.
Note: The project cannot edit the model without the OBJ data, which can only use the color adjustment and measurement function. The offset and coordinate system of OSGB and OBJ should be consistent.
{% hint style="success" %} Get3D Viewer provides free model format conversion function.
{% endhint %}
### Multi-Origin Project
### Spatial Framework Setting
This is an optional feature. Use the spatial framework file exported from **Get3D Mapper**, in **.json** format. If anomalies occur in the estimated tile size, setting a spatial framework is required. Otherwise, it may affect the operation of water surface refinement, road flatten, specified flatten, and other functions.
There are two ways to set the spatial framework:
1. Upload Spatial Framework File
2. Manually Input Parameters
### AT File Setting
This is an optional feature. Use the AT file exported from **Get3D Mapper** in **.xml** format. The coordinate system must match with OSGB/OBJ. This is used for AT mapping.
For details, refer to section AT Mapping.
Click **Browse** and select AT file. The **Select AT File** will display the image path, image count, and the number of missing images.
[How to export AT file in Get3D Mapper.](https://docs.get3d.ai/get3d-mapper/software-overview/menu-bar#id-2.3-export-block)
## 2 Open
Get3D ModelFun loads the project from the **\*.mfj** file. This function is used to open a project file.
## 3 Open Recent
This feature lists the **project file** the user has recently opened and lets users quickly reopen recently used **project files** to improve work efficiency.
## 4 Save
This function saves the user's changes to the current project.
## 5 Close
Close the project in the current window.
## 6 Reset
This function is used to reset current project.
{% hint style="danger" %}
After the reset, the data is initialized as the state of the creation project. All the geometry and texture operations are reset.
{% endhint %}
## 7 Setting
This is project setting feature, used to set spatial framework and AT file.
## 8 Backup and Restore
This feature is used to backup data. The backup content is OBJ geometry processing and texture processing. If needed, click **Restore** to recover data.
* **Backup**: Click to back up all tile data at this moment.
* **Delete**: Remove a backup record.
* **Restore**: Choose the record and the associated tiles, click **Restore** button to restore the tile data to the designated backup record.
* **Close**: Close the Backup and Restore window.
There are multiple ways to select tiles to restore. If no tile is selected, the recovery is invalid and the model is not restored.
## 9 Export Model
After editing the model, use this function to export OBJ/OSGB format models.
Select the exported model type and exported path.
Manually or automatically select the tiles to be exported.
* **Modified**: Selecting all edited tiles.
* **Select All**: Selecting all tiles.
* **Invert**: Invert the selection of selected tiles.
* **Remove:** Remove the selection
Click **Apply** to export models. Click **Task** to see the status of processing.
If tasks failed, click **Retry Task** to export again.
## 10 Exit
This function is used to close Get3D ModelFun software.
