pik4dLeverage Pix4D photogrammetry expertise on with PIX4Dcloud. Automatically extract information from images by generating 2D and 3D maps and models,There are three methods to import a tie point .csv or .txt file into PIX4Dmatic. One is accessible through the File tab in the main header, and the others are accessible from the Tie Points panel. [1] Go to the Menu bar and select File >