PIX4Dsurvey allows importing surveyor text files to an existing project. This feature can be useful in many contexts when a surveyor needs to have available any surveyed points and use them to identify a real-world location on the model reconstruction.
IN THIS ARTICLE
The coordinate reference system of the project must be defined before importing a surveyor text file into a project. Once, the project is created and has a reference coordinate reference system then follow these instructions:
- Open a project in PIX4Dsurvey.
- Import the .txt, .csv or .xyz file into the project.
- Click Apply.
- Horizontal coordinate reference system: Defines the exact position of the objects in 2D.
- Vertical coordinate reference system: Defines the origin for height or depth values. For more information: How to use vertical coordinate systems and geoids - PIX4Dsurvey.
- Geoid: Refers to the local geoid model that covers the territory.
- Geoid height: Indicates the constant height over the Bessel 1841 ellipsoid that is used as a replacement for the geoid model.
- Column separator: This field defines the character used in the surveyor text file to separate different columns. Values are comma (,), semicolon (;), space ( ), or tab ( ).
- Decimal separator: This field defines the character used in the surveyor text file to define the decimals in a numeric value. Values are period (.) or comma (,).
- Skipped row: it is used to specify at which line to start reading values from the file. This option can be used if the field loses focus on the table.
- Column format: It is the format for reading the point locations in a file.
- PNEZD: Point#, Northing, Easting, Elevation, Description.
- PENZD: Point#, Easting, Northing, Elevation, Description.
- PNEZ: Point#, Northing, Easting, Elevation.
- PENZ: Point#, Easting, Northing, Elevation
- NEZ: Northing, Easting, Elevation.
- ENZ: Easting, Northing, Elevation.
- XYZ: Latitude, Longitude, Elevation.
- YXZ: Longitude, Latitude, Elevation.
- Custom: Indicates that the format field is entered manually.
- Horizontal accuracy: Refers to the precision with which the X/Y or easting/northing values were captured.
- Vertical accuracy: Refers to the precision with which the elevation values were captured.
Once the text file is imported, it is visible under the Layer tab in the Content sidebar. 
In the viewport, it is possible to visualize each of the imported text points with a icon. 
By clicking on one of the imported text points, the attributes corresponding to that point are shown, and this information is visible at the bottom section of the Content sidebar. 
In the Export sidebar, the text points layer can be exported as GeoJSON, .dxf, .zip (.shp), and .shp extension formats. 
Visualizing and exporting a text surveyor file in the viewport - PIX4Dsurvey.