Layer Reordering via Overlap Detection in Digital Graphics
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Solution Overview
Problem
Conventional methods for manipulating the layering order of graphics objects in digital canvases require repetitive commands for large depth changes and lack clear visual feedback, leading to user confusion about changes in the rendered display.
Innovation Solution
A computer-implemented method that defines a subset of graphics objects based on overlap, allowing a single reordering command to move a selected layer above or below other objects, including intervening layers, providing clear visual feedback through a layering-order control and stacking-order indicator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional methods use repetitive commands to adjust layer depth, then the layering order can be changed, but the operation becomes time-consuming and inefficient when large depth changes are needed
Solution Approach 1:
The patent segments the layer reordering operation by defining a subset of graphics objects based on spatial overlap. Instead of moving layers one position at a time through repetitive commands, the system identifies all overlapping objects and reorders them in a single operation, effectively segmenting the problem into manageable groups that can be processed together.
Solution Approach 2:
The system performs preliminary action by pre-defining the subset of graphics objects that overlap with the selected object before executing the reordering command. This preliminary identification of relevant objects allows the system to prepare the reordering operation in advance, so that when the user issues a reordering command, the system can immediately execute the complete reordering without requiring multiple sequential commands.
2Ease of operation
If conventional methods change layer depth without visual feedback, then the layering order can be adjusted, but the user becomes confused about whether changes are visible
Solution Approach 1:
The patent implements feedback by providing visual indicators that show the layering order of graphics objects. The system displays information about which objects overlap and their relative depths, giving users immediate visual feedback about the layering structure. This feedback mechanism allows users to understand the current state and the effect of reordering operations without confusion.
Solution Approach 2:
The system uses color changes as a visual feedback mechanism to indicate layering order and selection state. By changing colors or visual properties of graphics objects based on their layer depth and selection status, the system provides intuitive visual information about the current layering configuration, making it clear to users which objects are selected and how their layers relate to overlapping objects.
3Manufacturing precision
If the system moves layers by absolute depth positions, then precise layer control is achieved, but non-overlapping layers cannot be meaningfully reordered
Solution Approach 1:
The patent applies local quality by defining the reordering operation locally within the subset of overlapping graphics objects rather than globally across all layers. The system identifies which objects actually overlap in the rendered display and limits the reordering operation to that local group. This approach maintains precision for overlapping objects while avoiding meaningless reordering of non-overlapping layers, as the operation is adapted to the local spatial relationships.
Solution Approach 2:
The system implements dynamics by making the reordering operation adaptive to the spatial relationships between objects. Rather than applying a fixed absolute depth reordering to all layers, the system dynamically determines the subset of overlapping objects and applies reordering only where it has visual meaning. This dynamic adaptation allows the same reordering command to be meaningfully applied whether objects are closely overlapping or widely separated, as long as they are in the same overlapping subset.
Data Source
AI summary
A technique for manipulating the layering order of graphical objects in a digital canvas or document is disclosed. A graphics object that is included in a layer in the digital canvas or document is selected. The digital canvas or document is searched in order to define a subset of graphics objects that includes the selected graphics object and any other graphics objects that overlap with the selected graphics object. A layering-order control enables a user to move the layer associated with the selected graphics object to a depth in the digital canvas or document that includes a layer associated with one of the other graphics objects in the subset of graphics objects. The concurrent re-positioning of multiple layers associated with two or more selected graphics objects is also disclosed.