Dynamic Drawing Regions for Digital Whiteboard Collaboration
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Solution Overview
Problem
Digital whiteboards used for collaborative efforts often restrict users' flexibility in expression due to the lack of differentiation between multiple users' inputs, leading to coordination challenges and limited freedom in creative activities.
Innovation Solution
The implementation of 'drawing regions' on a digital whiteboard, where each region allows independent line appearance properties, enabling users to set their own brush styles and colors, and automatically adjusts boundaries to accommodate user input, allowing multiple users to work simultaneously without interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single common whiteboard surface is shared by multiple users, then collaboration is enabled, but user flexibility and individual expression are restricted
Solution Approach 1:
The whiteboard surface is divided into multiple drawing regions, each assigned to a specific user. This segmentation allows each user to have their own dedicated space with independent line appearance properties (color, width, style), thereby improving user flexibility and individual expression while maintaining the collaborative nature of the shared whiteboard.
Solution Approach 2:
Each drawing region is赋予 unique line appearance properties specific to its user, creating local quality differences across the whiteboard surface. This allows different parts of the whiteboard to have different characteristics (e.g., User A's region has red thick lines, User B's region has blue thin lines), enhancing individual expression within the collaborative environment.
2Productivity
If multiple users work simultaneously on the same whiteboard, then collaboration efficiency improves, but coordination challenges increase
Solution Approach 1:
By dividing the whiteboard into separate drawing regions for each user, the system enables simultaneous work without interference. Each user operates independently within their own region, eliminating the need for constant coordination while maintaining collaboration efficiency through the shared whiteboard surface.
Solution Approach 2:
The drawing region boundaries act as intermediaries that automatically manage user interactions. These boundaries prevent accidental interference between users while allowing the system to coordinate user activities seamlessly, improving ease of operation during simultaneous collaboration.
3Stability of the object's composition
If drawing regions have fixed boundaries, then region stability is maintained, but user creative freedom is limited when drawing extends beyond boundaries
Solution Approach 1:
The drawing region boundaries are made dynamic rather than fixed. When a user's drawing activity approaches or exceeds the current boundary, the system automatically expands the region to accommodate the new drawing area. This dynamic adjustment maintains region stability during normal use while providing creative freedom when users need to extend their drawings.
Data Source
AI summary
Roughly described, different drawing regions are opened for different users on the same whiteboard. Each drawing region has its own set of line appearance properties, which the user can set with a toolbar. Lines drawn in a drawing region adopt the line appearance properties then in effect for that drawing region, which also apply to replications of the line on other devices in the collaboration session. As the user draws toward a boundary of the user's drawing region, the boundary automatically moves so that the drawing continues to contain the user's drawing activity.