Importing files with large coordinates

DXF and DWG files can contain elements with very large coordinates; this is especially true in the case of files with country coordinates. When you check the log file after having imported a file with large coordinates, you will find the following warning: Coordinates exceed 5,000 m. Large coordinates can cause problems when you edit the imported data in Allplan.

There are different ways of using this data without any problems:

• During import you can use the Adjust center of gravity to: options in the Settings, General Settings tab, to control how data with large coordinates is to be handled:
  • When you select the Off option, the data stays the same.
  • Select the Adjust center of gravity to: Offset option. This automatically sets an offset in the Project Settings: the origin of the file (= center of the min-max-box) is set to the origin of the coordinate system. You cannot use this option when you have already specified an offset in the Project Settings.
    
    Note: Here, offset means that the data is moved during import; the values by which the data is moved are automatically written to the project. This offset applies to the entire project. Setting an offset changes the coordinates of the existing drawing files in this project.
  • Select the Adjust center of gravity to: Origin option. This moves the center of the data to the origin of the Allplan coordinate system.
• During import you can specify an Additional offset in the Settings. This offset is used in addition to the offset set in the Project Settings. Pay attention to the direction of conversion when you set an offset:
  • Negative values for import
  • Positive values for export
• Import the data and move it towards the origin using the Move tool in Allplan.
• Specify offset coordinates in the Project Settings. The offset set is automatically taken into account when you export and import data.

Important: Using an offset is usually the better solution:

• Point coordinates are measured correctly, and they are not changed. This is particularly important when you need to export the data again (coordinates in site plans are legally binding).
• The offset set is automatically taken into account when you export and import data.
• Whenever you move data, you change the coordinates themselves. So you are advised to use this option only if you require the data for internal use and you do not need to export the data again (coordinates in site plans are legally binding).

If a project with large coordinates is at an advanced stage, Allplan provides another solution that helps you improve the representation.

• Select the Optimize working with large coordinates option in the Options, Desktop environment. The program internally optimizes the coordinates of the elements and restores the original values each time you have done something, for example, saved the file.

What do you want to do?

Determine offset values

Set an offset

Get information on solving offset problems

Solve problems when working with large coordinates, important steps

Use very large and local coordinates at the same time