The invention aims at the problem that a traditional
data structure cannot support the network
multidimensional space data expression and provides a MDDRQ-Tree index structure for the network
multidimensional space data expression. The MDDRQ-Tree index structure is characterized in that: (1) a primary tree is transformed from an area
quadtree index structure divided through a rule of a
pyramid hierarchy structure, (2) an overlapping sub-
tree structure for supporting the
multidimensional data is provided, (3) the change of spatial resolution is reflected by the depth of the tree, and (4) all the nodes of the tree are
space object carriers. The invention organically integrates the
multidimensional space data such as frequently-used vector data, gridded data, process data, three-dimensional landscape map data, and the like. In the manner of data organization, scheduling and searching fit for the
network conditions, the invention can efficiently and rapidly support the
web publishing of the
multidimensional data for
mass data. Compared with the traditional method, the
index method of the invention can efficiently express and search the scale of the
mass multidimensional data. The more the data volume is, the more obvious the promoted efficiency is.