Optical Digital Ruler for Precise Drawing Alignment
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Solution Overview
Problem
Users face challenges in drawing precise lines and shapes using electronic drawing services like ADOBE LINE and ADOBE SKETCH, as they often result in imprecise strokes due to variations in motion and lack of access to touchscreen devices or suitable display sizes for hardware rulers.
Innovation Solution
An optical digital ruler with at least two optical sensors is used to control an electronic template for precise drawing strokes, allowing users to position and manipulate templates on a canvas for creating straight lines or other shapes, even without a touchscreen, by translating movement into coordinates and aligning strokes with template edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users draw free-form strokes on a canvas using electronic drawing services, then drawing flexibility is improved, but drawing precision deteriorates due to motion variations
Solution Approach 1:
The patent introduces an optical digital ruler as an intermediary tool between the user and the canvas. The ruler includes optical sensors that detect its position and orientation, and an electronic template that provides guidance. The user interacts with the ruler rather than drawing directly on the canvas, allowing the ruler to mediate the drawing process by constraining strokes to follow template edges, thereby improving precision while maintaining ease of operation.
Solution Approach 2:
The patent replaces traditional mechanical drawing tools (such as physical rulers and straightedges) with an optical-digital system. The optical sensors and electronic template eliminate the need for physical contact between the user's hand and the canvas, substituting mechanical guidance with optical detection and digital rendering. This substitution allows for more precise position detection and template alignment, improving drawing precision without sacrificing flexibility.
2Manufacturing precision
If hardware rulers are used for precise drawing, then drawing precision is improved, but device accessibility deteriorates for non-touchscreen devices or small displays
Solution Approach 1:
The optical digital ruler is designed to be universally compatible with various display types, including non-touchscreen devices and devices with small displays. The system uses optical sensors to detect the ruler's position and an electronic template rendered on the display to provide guidance, rather than requiring direct touchscreen interaction or large display space. This multi-functional approach allows the same device to work across different platform types, improving accessibility while maintaining precision.
Solution Approach 2:
The patent transitions from two-dimensional physical ruler interaction to a system that incorporates the third dimension of optical sensing and digital rendering. The optical sensors detect the ruler's position in three-dimensional space, and the electronic template is rendered on the display according to the detected position and orientation. This dimensional transformation allows the system to adapt to different display sizes and types, improving accessibility while maintaining drawing precision.
3Measurement precision
If optical sensors are used to detect ruler position, then template positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The patent uses optical sensors to create a digital copy or representation of the ruler's physical position and orientation. Instead of directly measuring complex spatial relationships, the system captures the ruler's state through optical detection and translates it into digital coordinates that control the electronic template's position on the display. This copying approach simplifies the overall system by separating the physical sensing function from the digital rendering function, improving positioning accuracy while managing device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise drawing of straight lines and shapes on any display, including non-touchscreen devices, by aligning strokes with template edges, regardless of the user's motion, thus improving drawing accuracy and accessibility.
Implementation Method 1
The optical digital ruler includes at least two optical sensors configured to detect movement relative to a surface
Data Source
AI summary
Embodiments of the present invention provide systems, methods, and computer storage media directed to an optical digital ruler. The optical digital ruler includes at least two optical sensors allowing physical movement and rotation of the optical digital ruler to facilitate positioning a template on a canvas or background. As such, a particular drawing stroke on the canvas or background can be drawn in alignment with a template irrespective of whether a path input by a user via a stylus aligns with the template. In some implementations, a drawing stroke is aligned with a template edge when the optical digital ruler has been activated despite the location of the path.