Closed area mark point generation method and computer storage medium

Abstract

The invention discloses a closed area mark point generation method and a computer storage medium, and relates to the technical field of three-dimensional printing. Comprising the following steps: acquiring first coordinate values and second coordinate values of all vertexes on a polygonal contour of a closed area; at least obtaining a first coordinate value of the pre-mark point, wherein the first coordinate value of the pre-mark point is between a maximum value and a minimum value in the first coordinate values of all the vertexes; acquiring a first straight line, wherein the first straight line passes through the pre-mark point and is parallel to the second coordinate axis; intersection points of the first straight line and all the edges of the polygonal contour are obtained, and the intersection points are ranked into ranked intersection point sets according to the second coordinate values of the intersection points; a mark point is obtained, a second coordinate value of the mark point is between a first value and a second value, the first value and the second value are second coordinate values of two adjacent intersection points in the sorting intersection point group respectively, and the first coordinate value of the mark point is the first coordinate value of the pre-mark point. And the generated mark points can clearly and accurately mark the closed area.

Description

technical field [0001] The invention relates to the technical field of three-dimensional printing, in particular to a method for generating marker points in a closed area and a computer storage medium. Background technique [0002] 3D printing technology is a technology based on digital model files, using powder-like adhesive materials to construct objects by layer-by-layer printing. 3D printing is generally first modeled by computer modeling software, and then the built 3D model is sliced ​​to form a layer-by-layer section, and the 3D printing equipment is guided to print layer by layer according to the filling path, so as to realize the rapid prototyping of objects. When printing, sometimes it is necessary to partition the cross-sections of each layer formed to form multiple closed areas. In , all closed areas need to be sorted according to requirements, and then printed in the sorted order. During the testing and debugging of 3D printing, the 3D printing equipment will ...

AI Technical Summary

Problems solved by technology

During the testing and debugging of 3D printing, the 3D printing equipment will display the outline of each closed area and the marker points matching the closed area, and mark the marker points by marking them and displaying the markers at the positions of the marker points. The printing serial number of this closed area, adopts the center of gravity of the closed area as the marking point in the prior art, but when the closed area is some special graphics, its center of gravity will fall outside the closed area, and at this time using the center of gravity as the marking point cannot be used for the closed area. Areas are clearly and accurately identified

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