pik4dThere 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 >Who are we? Pix4D is a market leader in photogrammetry software technology.. Our products enable you to ditize reality and measure from images taken from planes, drones, phones, or