Patterns of Aerial Triangulation by Independent Models

Abstract

The position of the non-zero elements in the coefficient matrix of the reduced normal equations are directly defined based on the existence of tie points between the models. The shape and the size of the matrix and the fill-in elements during its factorization depend on the geometric configuration of the models in the network, ~~ well as the order of sequencing the models in the block. The ordering scheme of the models of homogeneou~Onetworks is investigated for variable geometrical parameters. With the aid of computer graphics, the pattern and size of the reduced matrix could be established from the topology of the network before any measurements take place. Manipulation of the ordering of models, beside other considerations of the method and strategy of the matrix decomposition, and the computation facilities would lead to the most efficient use of the computer storage and economy in computation time.