2 tools for importing points from CSV to AutoCAD Map 3D / Civil 3D: ImportPoints vs. MapImport

by Vladimir Michl

AutoCAD Map 3D and Civil 3D provide two different tools for bringing coordinate-based point data (for example from CSV files) into your drawing. Although they may seem similar at first glance, they serve slightly different purposes and workflows. What are the main differences?

ImportPoints: Flexible Survey Data Import

The ImportPoints command is intended primarily for working with survey-style data. It allows you to import one or more files at once, supporting formats such as TXT, CSV, PRN, XYZ, AUF, NEZ, and PNT.

A key advantage of this tool is its flexibility. During the import process, you can define how the data is structured within the file. This includes specifying the order of values on each line—such as point ID, X and Y coordinates, elevation (Z), and description. If needed, you can even create a custom format to match your data source.

Coordinates are brought in either as simple XY values or transformed according to the assigned coordinate system. The resulting objects are created as survey points, making this method especially suitable for civil engineering and surveying workflows.

MapImport: GIS-Oriented Data Import

The MapImport command is designed for GIS-style data handling. While it also supports CSV and TXT formats, it can import a wide range of geospatial file types beyond those.

Unlike ImportPoints, MapImport handles only one file at a time. The structure of the input data must be selected from a predefined list rather than fully customized. In this context, coordinates are treated in GIS terms as Northing and Easting values.

The import preview is limited, showing only the first few rows of the dataset. However, MapImport offers additional GIS-specific capabilities, such as assigning a coordinate system directly during import. You can also define a block that will be inserted at each imported point location, which can be useful for mapping workflows.

For automation or scripting purposes, a command-line version of this tool is available as -MAPIMPORT.

Important Note

When working with files stored in cloud-synced folders (such as OneDrive), avoid importing them directly while they are mapped locations. This can lead to unexpected issues during the import process.