Visual layout method based on multi-stage task FIG decomposition system modules

The present invention pertains to information visualization, relates to visualization, the community display technology, discloses a visual layout algorithm based on FIG multistage task system modules decomposition, including an exploded view, partially positioning, global placement, without overlapping optimization process. It presents a characteristic to reflect the clustering, closeness of correlation, non-overlapping node layout method. Firstly, FIG multistage system task module decomposed, the decomposition tree, to find the three seed regular map; secondly, from the bottom up for each local submap layout; Finally, from the top down to the node in FIG. globally layout. In order to prevent and reduce overlap, adjustment parameter λ is introduced from the energy function is corrected by adjusting parameters such that the layout to avoid overlap, the layout to achieve good results.