This example shows an image space with elements.The elements are responsive to the point of attention by scaling their display size.The dynamic response is at the level of the element.Each element rearranges its position in the topology based on attraction to the point of attention and autonomous movement.The model avoids occlusion of ele- ments to allow direct line of site to each element at all times.The model contains a binary tree space subdivision model to speed up collision detection for large number of elements.As the number of elements increases,the density increases.Each element competes for maximum size in the given display area and therefore also for exposure to attention.As the elements collide they limit each other ís growth.If the point of atten- tion hits an element its growth rate increases and it will grow faster then its neighbors.