Logical zooming of a directed graph
地域：
NY
NY Armonk
摘要
A method for displaying a relational diagram on a screen where at least one view of the relational diagram is larger than an available viewing area provided by the screen. The method comprises steps of detecting a predetermined action performed on a first element of the relational diagram, determining one or more relevant elements associated with the first element, and modifying a view of the relational diagram to display the first element and the one or more relevant elements on the screen.
說明書
This application is a Continuation of U.S. patent application Ser. No. 15/286,866, filed on Oct. 6, 2016, which is a Continuation of U.S. patent application Ser. No. 11/958,726, filed on Dec. 18, 2007, the entirety of each which is incorporated herein by reference.
The present invention relates generally to the display of information, and in particular to the display of relationships between entities in large relational diagrams.
Conventional methods and apparatuses for displaying large diagrams are known. U.S. Pat. No. 6,437,799, describes a directed graph that is logically zoomed, whereby the appearance of a node directly related to a target node can be exaggerated and the structure of an entire graph can be readily understood. The directed graph is used in which hierarchical nodes are connected by arcs. In the directed graph, a node that has a predetermined logical relationship with a selected node is displayed differently than are the other nodes. For example, a displayed node logically near the selected node is large, while a displayed node logically distant is small, or the node logically near the selected node is moved closer to the selected node.
權(quán)利要求
What is claimed is:1. A method for displaying a relational diagram on a display, at least one view of the relational diagram being larger than an available viewing area provided by the display, the method comprising:detecting a predetermined action performed on a first element included in a first portion of a relational diagram displayed within a display area limit of a display screen; and, responsive to detecting the predetermined action performed on the first element:determining one or more relevant elements associated with the first element that is present in a second portion of the relational diagram in an area extending beyond the display area limit of the display screen so as to be unviewable in the display, and modifying the first portion of the relational diagram displayed within the display area limit of the display screen to include the one or more relevant elements dragging the one or more relevant elements from the second portion of the relational diagram displayed within the area extending beyond the display area limit of the display screen into the first portion of the relational diagram displayed within the display area limit of the display screen, wherein a location of any elements of the first portion of the relational diagram displayed within the display area limit of the display screen prior to the modification remains unchanged after the modification. 2. The method according to claim 1 , wherein a relevant element from the one or more relevant elements that is dragged from the second portion of the relational diagram displayed within the area extending beyond the display area limit of the display screen into the first portion of the relational diagram displayed within the display area limit of the display screen is determined according to a priority of the one or more relevant elements and the first element. 3. The method according to claim 1 , further comprising the step of applying visual effects to one or more of the first element and the one or more relevant elements. 4. A system for displaying a relational diagram on a display, whereon at least one view of the relational diagram is larger than an available viewing area provided by the display, the system comprising:a computer with memory and at least one processor and a display; and a display program comprising program instructions that execute in the memory of the computer in order to display a relational diagram on the display by: detecting a predetermined action performed on a first element included in a first portion of a relational diagram displayed within a display area limit of a display screen; and responsive to detecting the predetermined action performed on the first element:determining one or more relevant elements associated with the first element present in a second portion of the relational diagram in an area extending beyond the display area limit of the display screen so as to be unviewable in the display, and modifying the first portion of the relational diagram displayed within the display area limit of the display screen to include the one or more relevant elements from the second portion of the relational diagram displayed within the area extending beyond the display area limit of the display screen into the first portion of the relational diagram displayed within the display area limit of the display screen, wherein a location of any elements of the first portion of the relational diagram displayed within the display area limit of the display screen the modification remains unchanged after. 5. The system according to claim 4 , wherein a relevant element from the one or more relevant elements that is dragged from the second portion of the relational diagram displayed within the area extending beyond the display area limit of the display screen into the first portion of the relational diagram displayed within the display area limit of the display screen is determined according to a priority of the one or more relevant elements and the first element. 6. The system according to claim 4 , wherein the program instructions are further operable to apply visual effects to one or more of the first element and the one or more relevant elements. 7. A computer program product for displaying a relational diagram on a display, at least one view of the relational diagram being larger than an available viewing area provided by the display, the computer program product comprising a non-transitory computer readable storage medium having program instructions embodied therewith, the program instructions executable by a device to cause the device to perform a method comprising:detecting a predetermined action performed on a first element included in a first portion of a relational diagram displayed within a display area limit of a display screen; and, responsive to detecting the predetermined action performed on the first element:determining one or more relevant elements associated with the first element present in a second portion of the relational diagram in an area extending beyond the display area limit of the display screen so as to be unviewable in the display, and modifying the first portion of the relational diagram displayed within the display area limit of the display screen to include the one or more relevant elements from the second portion of the relational diagram displayed within the area extending beyond the display area limit of the display screen into the first portion of the relational diagram displayed within the display area limit of the display screen, wherein a location of any elements of the first portion of the relational diagram displayed within the display area limit of the display screen prior to the modification remains unchanged after the modification. 8. The computer program product according to claim 7 , wherein a relevant element from the one or more relevant elements that is dragged from the second portion of the relational diagram displayed within the area extending beyond the display area limit of the display screen into the first portion of the relational diagram displayed within the display area limit of the display screen is determined according to a priority of the one or more relevant elements and the first element. 9. The computer program product according to claim 7 , wherein the method further comprises the step of applying visual effects to one or more of the first element and the one or more relevant elements.
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