ViewDesignEngine
e276ce5a64
P2 B-Rep建模: - brep: fillet/chamfer/shell 完整实现 - brep: box/cylinder/sphere 实体工厂 - brep: extrude/revolve/sweep/loft 建模操作 P3 数据交换: - foundation: PLY 读写（ASCII+二进制） - foundation: glTF 2.0 导出（JSON+bin） P4 高级算法/杀手功能: - sketch: 2D 草图约束求解器（Newton-Raphson, 9种约束类型） - core: ICP 点云配准（SVD最优变换+KD-Tree加速） 新增模块: vde_sketch
49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
#pragma once
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#include "vde/core/point.h"
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#include <vector>
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#include <string>
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namespace vde::sketch {
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struct SketchPoint { int id; Point2D pos; bool fixed = false; };
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struct SketchLine { int id, p0, p1; };
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struct SketchCircle { int id, center; double radius; };
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enum class ConstraintType {
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Horizontal, Vertical, Parallel, Perpendicular, Coincident,
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EqualLength, Distance, Radius, Tangent, Concentric, FixedPoint
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};
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struct Constraint {
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ConstraintType type;
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std::vector<int> elements;
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double value = 0.0;
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};
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struct SolverResult {
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bool converged = false; int iterations = 0; double residual = 0.0;
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std::vector<Point2D> points; std::string message;
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};
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class ConstraintSolver {
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public:
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int add_point(double x, double y, bool fixed = false);
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int add_line(int p0, int p1);
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int add_circle(int center, double radius);
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void add_constraint(ConstraintType type, const std::vector<int>& elements, double val = 0.0);
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void fix_point(int pid) { if(pid>=0&&pid<(int)points_.size()) points_[pid].fixed=true; }
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[[nodiscard]] SolverResult solve(int max_iter = 100, double tol = 1e-8);
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[[nodiscard]] int degrees_of_freedom() const;
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[[nodiscard]] const std::vector<SketchPoint>& points() const { return points_; }
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private:
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std::vector<SketchPoint> points_;
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std::vector<SketchLine> lines_;
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std::vector<SketchCircle> circles_;
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std::vector<Constraint> constraints_;
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double eval_constraint(const Constraint& c) const;
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};
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} // namespace vde::sketch
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