Geometric modelling method of hot pepper fruit

Abstract

The invention discloses a geometric modelling method of hot pepper fruit, comprising the following steps: S1, respectively acquiring three-dimensional data points of each partial surface of the hot pepper fruit according to the mark points on the surface of the hot pepper fruit; S2, respectively carrying out modelling on each part according to the three-dimensional data of each part by utilizing a NURBS (non-uniform rational B-spline) curved surface; and S3, splicing the models of each part into a complete model of the hot pepper fruit by adopting a spline splicing method. According to the invention, the shape of the constructed fruit can be flexibly controlled, the surface of the fruit is smoother, sense of concave-convex is strong, and no crack is produced at the splicing position.

Description

technical field [0001] The invention relates to the technical field of digital agriculture, in particular to a geometric modeling method of pepper fruit. Background technique [0002] Digital plants are the basic research work of digital agriculture. It comprehensively utilizes digital technology to conduct quantitative and visualized research on the life process of plants and agricultural production processes. , collaborative scientific research experiments, integrated applications, and results sharing, etc., to provide supporting technologies and information service platforms. [0003] With the continuous improvement of computer hardware performance and continuous research in the fields of virtual plant modeling and landscape design, it is possible and necessary to have higher realistic plant modeling. [0004] Pepper fruit is long cylindrical, with thick flesh, bright and beautiful color; it is divided into red, yellow, purple, green and other colors. The whole fruit is...

AI Technical Summary

Problems solved by technology

[0010] The fruit constructed by the method of rotating the contour line according to the trajectory line is relatively smooth, and it is difficult to construct the plant fruit with a strong surface concave-convex feeling;

[0011] The modeling method of plant fruit based on the surface parameter equation is not flexible enough to control the shape of the fruit;

[0012] The method of constructing fruit by splicing multiple Bezier surfaces cannot achieve seamless and smooth splicing of surfaces, and it is prone to cracks and cracks on the surface.

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