Contour line generation method, system, device and storage medium based on model shadow
A contour line and shadow technology, applied in the field of 3D image geometric modeling, can solve the problem of low efficiency of calculation curve visibility, achieve the effect of improving analysis flexibility, improving analysis efficiency, and simplifying complexity
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Embodiment 1
[0051] The present embodiment provides a model-based method of generating the shadow contour, the present method is effective to solve the conventional calculation according to the geometric characteristics curve for complex models result in low visibility efficiency, the present method does not consider the geometric features of the model, the simplified contour generating method step, but can also control accuracy by the view scale curve discrete points and to control the accuracy of the generated contour line, so that the user can more easily control the precision of the results.
[0052] like figure 1 , The profile generating method according to the present embodiment includes the following steps:
[0053] Step S1: the model view transform processing on an object according to a desired ratio and the desired view angle, and the model object to the view transform to obtain the shaded area projected on the projection plane;
[0054] Step S2: transforming the model object on the e...
Embodiment 2
[0074] This embodiment is based on the contour generation system of the model shadow, the system performs a model-based shadow-based contour generation method according to the embodiment, such as Figure 12 As shown, its system includes the following modules:
[0075] View transform module for transforming the edge line on the model object and the model object according to the desired view ratio and viewing angle;
[0076] The projection module is used to project a model object after the view transform and the edge line projected into the projection plane;
[0077] The determination module is used to determine whether the edge line on the projection plane and the shaded area obtained by the model object projection is met;
[0078] The output module is used to output the edge line region satisfying the contour condition as an outline.
Embodiment 3
[0080] This embodiment provides an electronic device comprising a processor, a memory, and a computer program stored on the memory and can run on the processor, the processor implements the computer program. A model-based shaded contour generation method; additionally, the present embodiment also provides a storage medium that stores a computer program that implements the above-described model-based contour distribution method.
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