Roaming The Drop-down Button provides the function of continuously panning the Map Browsing map content in the current Map. The button consists of two parts: one is the button part, which can be clicked to directly execute the corresponding function, and the other is the Drop-down Button part, which will pop up the drop-down menu when clicked, and the corresponding function can be further realized by selecting the items in the drop-down menu.
Roam
Click the Roam button, or select the Roam item in the Drop-down Button menu. The Operation Status in the current Map changes to the roaming status, and the status of the mouse in the current Map changes to 
.
In addition, pressing the letter A on the keyboard or holding down the middle mouse button can also switch the status of the current Map to the Operation Status for panning and browsing the map.
- Hold down the left mouse button and drag in the current Map, and the map in the Map will be translated in the direction of the mouse drag. Release the left mouse button to stop the panning operation. At this time, the map in Map will be refreshed once.
- Because the map is not refreshed in real time during the process of panning the map by holding down the left mouse button, a blank part of the map will appear in the Map. The map will not refresh until you release the left mouse button to stop the panning operation.
- If you need to refresh in real time while panning the map, you can use the Real-time Pan function.
Real-time Pan
Click the Roaming Drop-down Button, and select the Real-time Pan option in the pop-up drop-down menu. The Operation Status in the current Map changes to the Real-time Pan status, and the status of the mouse in the current Map changes to 
.
- Press and hold the left mouse button in the current Map to drag, and the map in the Map will translate in the direction of the mouse drag. When the left mouse button is released, the translation operation can be stopped. In the process of map translation, the map will be refreshed in real time, so that the map translation browsing process is very smooth.
Global Pan
Global Pan refers to the seamless navigation of the eastern and western hemispheres when browsing the World Map, which realizes the same experience of browsing the world map on the plane as on the sphere. After Global Pan is turned on, the starting and ending longitude of the displayed World Map range is not limited to the range of -180 to + 180 longitude, and the starting and ending range changes with the movement of the mouse.
This function is mainly used for some special scenarios that need to cross the eastern and western hemispheres, such as drawing global navigation or aviation routes, and measuring the distance across the eastern and western hemispheres. Click the Roaming Drop-down Button in the Browse group of the Map tab and select the Global Pan option to turn on the function.
Global Pan has certain requirements for the reference coordinate system of the map. At present, there are two kinds of coordinate systems supporting Global Pan: WGS 1984 in the Projected Coordinate System of longitude and latitude and World Mercator in the Projected Coordinate System.
| Parameter Name | Parameter value |
| Geodetic Reference System | D_WGS_1984 |
| Reference Spheroid | WGS_1984 |
| Semimajor Axis | 6378137 |
| Spheroid Flattening | 0.00335281066474748 |
| Parameter Name | Parameter value |
| Geodetic Reference System | D_WGS_1984 |
| Reference Spheroid | WGS_1984 |
| Semimajor Axis | 6378137 |
| Spheroid Flattening | 0.00335281066474748 |
| Geographic Coordinate System | GCS_WGS_1984 |
| Projection Type | Mercator |
| Center Meridian | 0 |
| Central Parallel | 0 |
| Standard Parallel (1) | 0 |
| Standard Parallel (2) | 0 |
| Offset X | 0 |
| Offset Y | 0 |
| Scale Factor | 0.9996 |
| Azimuth | 0 |
| First Point Meridian | 0 |
| Second Point Meridian | 0 |