Pan

Pan refers to the operation of panning the map view by holding and dragging the mouse to freely browse different areas.

The operation instructions are as follows:

1. Enable pan in any of the following ways:
   • In the Map tab -> Browse group, click the Pan button, or select the Pan item from its dropdown menu.
   • Press the A key on the keyboard.
   • Hold down the middle mouse button.
2. Pan the map: After entering pan mode, hold down the left mouse button and drag (if pan is enabled by holding the middle mouse button, simply drag directly), and the map will pan in the drag direction. Release the left button to stop panning, and the map will refresh accordingly.

Tip:

To optimize performance and ensure smooth panning operations, the system does not render the map in real-time by default during panning: when dragging the mouse, the map is converted to a bitmap for movement, so blank areas may appear; after releasing the mouse, the system immediately redraws based on the real data, completing the map refresh. If you need to view the complete map content while dragging, enable the Refresh the Walkthrough function.

Refresh the Walkthrough

Refresh the walkthrough pans the view by calling and drawing map data in real-time, so when the data volume is large, it may occupy more computational resources, potentially causing a decrease in refresh rate.

The operation instructions are as follows:

1. Enable the refresh the walkthrough function: In the Map tab -> Browse group -> Pan dropdown menu, click the RefreshPan button.
2. Pan the map: Hold down the left mouse button and drag, and the map will pan in the drag direction, with the map refreshing in real-time.

Global Pan

Global pan refers to seamless panning across the eastern and western hemispheres when browsing the world map, achieving the same experience as browsing a global map on a plane as on a sphere. This function is mainly used for special scenarios that require crossing the eastern and western hemispheres, such as drawing global navigation or aviation routes, and performing distance measurements across the hemispheres.

Global pan has certain requirements for the map's reference coordinate system. Currently, the coordinate systems supported for global pan are as follows: WGS 1984 in the geographic coordinate system and World Mercator in the projected coordinate system.

Click the Pan dropdown button in the Map tab Browse group, and select the Global Pan option to enable this function. After enabling global pan, the starting and ending longitudes of the displayed world map bounds are not limited to the -180 to +180 longitude range, and they change as the mouse pans.