Tactio is a program for automatic surveying of the plain cross section through a 3D object.
Automatic survey means that a tachymeter independently scans a surface step by step. The strong point of the program is that the tachymeter measures the cross section, or sections, without the presence of the operator.
Tactio is developed for use in the Leica tachymeter (with laser distance measure). The automatic observations are registrated with a line code. The records are stored in Leica format, preferable in a gsi file.