Pen interaction-based primitive topological composition method

Abstract

The invention discloses a pen interaction-based primitive topological composition method, which relates to the field of computer interaction and comprises the following steps of: drawing a sketch on a touch screen by using a touch pen; selecting the drawn sketch, calling a sketch recognition engine based on a YOLOv5 neural network for recognition, recognizing standard primitive information and irrelevant writing information, wherein the standard primitive information comprises primitive category and position information; removing sketch stroke information corresponding to the standard primitive from stroke data of the sketch, and identifying the remaining sketch strokes as line segments; judging a primitive connection relation according to the identified primitive category, primitive position, line segment and position relation between the line segment and the primitive so as to establish a graph structure expression; according to the graph structure representation, the primitive category and the line segment, converting into a normalized topological structure graph, and displaying on the original drawing position of the touch screen; and storing the topological structure diagram, and editing the standard primitives and the topological structure diagram as required.

Description

technical field [0001] The invention relates to the field of computer interaction, in particular to a graphic element topology composition method based on pen interaction. Background technique [0002] In daily study, work and life, some diagrams are often needed to assist in formulating plans (for example: flowcharts, military action process diagrams COA, etc.), designing (for example: UML class diagrams, circuit design diagrams) and understanding relationships (for example: UML Example diagrams, system architecture diagrams, etc.). At present, the mainstream production method of these diagrams is that the user uses the keyboard and mouse to select graphic elements and place them on the canvas to form a tree-like, chain-like or network-like topological graph structure, such as drawing flowcharts and UML class diagrams in Visio. All this way. [0003] The composition method using the keyboard and mouse is currently considered to have the following disadvantages: (1) It req...

AI Technical Summary

Problems solved by technology

[0003] The composition method using the keyboard and mouse is currently considered to have the following disadvantages: (1) It requires users to learn and master the software, which increases the cognitive burden of non-professional users; (2) There are many constraints on the input form and content, which limits the user's instant thinking (3) In addition, the keyboard and mouse interactive input method is not suitable for mobile scenes and large-screen interactive scenes

There is redundancy and inefficiency in this usage

Images