single arc line & readme doc

.clang-tidy

@@ -23,6 +23,9 @@ Checks: "
 				-cppcoreguidelines-init-variables,
         -cppcoreguidelines-pro-type-member-init,
         "
+CheckOptions:
+  - key:             misc-non-private-member-variables-in-classes.Level
+    value:           None
 
 WarningsAsErrors: ''
 HeaderFilterRegex: '.*'

README.md

@@ -1,2 +1,95 @@
 # PMClassifier
-
+用于计算Extrusion体在空间查询点处的SDF
+## Extrusion体描述
+- 沿多段线路径拉伸
+```C++
+class ExtrudedSolidPolyline {
+	/**
+	* @brief Construct a new extruded solid using a polyline as the axis
+	* @param profiles The profiles of the extruded solid
+	* @param axis The axis of the extruded solid
+	* @param rScale The radius scale of the extruded solid, unused for now
+	*/
+	ExtrudedSolidPolyline(std::vector<Polyline> profiles, Polyline axis, real rScale = 1.0);
+}
+```
+- 沿单段线路径拉伸
+```C++
+class ExtrudeSolidArcLine : public ExtrudedSolidPolyline {
+public:
+	/**
+	* @brief Construct a new extruded solid using an arc line as the axis
+	* @param profiles The profiles of the extruded solid
+	* @param axis The axis of the extruded solid
+	* @param rScale The radius scale of the extruded solid, unused for now
+	*/
+	ExtrudeSolidArcLine(std::vector<Polyline> profiles, ArcLine axis, real rScale = 1.0);
+}; 
+```
+- 沿螺旋路径拉伸
+```C++
+class ExtrudedSolidHelixLine {
+public:
+	/**
+	* @brief Construct a new extruded solid using a helix as the axis
+	* @param profiles The profiles of the extruded solid (still polyline)
+	* @param axis The axis of the extruded solid
+	* @param rScale The radius scale of the extruded solid, unused for now
+	*/
+	ExtrudedSolidHelixLine(std::vector<Polyline> profiles, HelixLine axis, real rScale = 1.0);
+}; 
+```
+## 曲线描述
+- 多段线
+```C++
+using Pt3Array = std::vector<Vec3>;
+class Polyline {
+public:
+		/**
+		* @brief Construct a new Polyline object
+		* @param points The points of the polyline
+		* @param bugles The bugles of the polyline
+		* @param refNormal The reference normal of the polyline
+		* @param closed Whether the polyline is closed
+		*/
+    Polyline(Pt3Array points, std::vector<real> bugles, const Vec3 &refNormal, bool closed = false);
+}
+```
+- 单段线/圆弧线
+```C++
+class ArcLine : public Polyline {
+public:
+	/**
+	* @brief Construct a new ArcLine object
+	* @param a The start point of the arc line
+	* @param b The end point of the arc line
+	* @param bugle The bugle of the arc line
+	* @param refNormal The reference normal of the arc line
+	*/
+    ArcLine(const Vec3 &a, const Vec3 &b, real bugle, const Vec3 &refNormal);
+};
+```
+- 螺旋线
+```C++
+class HelixLine : public ILine {
+public:
+	/**
+	* @brief Construct a new HelixLine object
+	* @param axisStart The start point of the helix line
+	* @param axisEnd The end point of the helix line
+	* @param r The radius of the helix line
+	* @param advancePerRound The advance per round of the helix line
+	* @param startDir The direction from axisStart to start of the helix line
+	*/
+    HelixLine(const Vec3 &axisStart, const Vec3 &axisEnd, real r, real advancePerRound,
+              const Vec3 &startDir);
+}
+```
+## 距离查询
+对拉伸体对象使用.sdf(Vec3 queryPoint)
+```C++
+Polyline axis{...};
+ExtrudedSolidPolyline a{..., axis};
+const Vec3 queryP = Vec3(...);
+auto f = a.sdf(queryP);
+```

include/line.hpp

@@ -39,6 +39,11 @@ class ILine {
 public:
     int aaa;
     virtual ~ILine() = default;
+    ILine() = default;
+    ILine(const ILine &) = default;
+    ILine &operator=(const ILine &) = default;
+    ILine(ILine &&) = default;
+    ILine &operator=(ILine &&) = default;
 
     virtual Vec3 eval(real t) = 0;
 
@@ -55,6 +60,20 @@ public:
     [[nodiscard]] virtual bool isEndParam(real t) const = 0;
 };
 
+inline static ClosestDescOnSeg segPtDist(const Vec3 &p, const Vec3 &A, const Vec3 &B) {
+    Vec3 AB = B - A;
+    Vec3 AP = p - A;
+    real h = std::clamp(AP.dot(AB) / AB.dot(AB), 0., 1.);
+    return {h, (AP - AB * h).norm()};
+}
+
+inline static ClosestDescOnSeg segPtDist(const Vec2 &p, const Vec2 &A, const Vec2 &B) {
+    Vec2 AB = B - A;
+    Vec2 AP = p - A;
+    real h = std::clamp(AP.dot(AB) / AB.dot(AB), 0., 1.);
+    return {h, (AP - AB * h).norm()};
+}
+
 template <typename VecType> // Vec2 or Vec3
 struct CircularArc {
     VecType center;
@@ -64,7 +83,7 @@ struct CircularArc {
     VecType u;
     VecType v;
     VecType inCircleDir;
-    PtBoundaryRelation inCircleCheck(const VecType &pt) const {
+    [[nodiscard]] PtBoundaryRelation inCircleCheck(const VecType &pt) const {
         real d = (pt - center).norm();
         return d < radius ? Inside : d > radius ? Outside : OnBoundary;
     }
@@ -79,37 +98,6 @@ struct AA {
 
 const real DISC_ARC_ANGLE = std::numbers::pi * 0.125;
 
-namespace detail {
-void initCircularArcInfo(const Vec3 &a, const Vec3 &b, real bugle, const Vec3 &refNormal,
-                         CircularArc<Vec3> &res) {
-    if (isEqual(bugle, 0)) {
-        res.radius = INFINITY;
-        res.theta = 0;
-        res.h = INFINITY;
-        res.inCircleDir = refNormal.cross(b - a).normalize();
-        res.u = res.inCircleDir;
-        res.v = refNormal.cross(res.u);
-        return;
-    }
-
-    Vec3 abHalf = (b - a) * HALF;
-    Vec3 abNorm = abHalf.normalize();
-    real theta = std::atan(fabs(bugle)) * 4;
-    res.inCircleDir = abNorm.cross(refNormal) * (bugle > 0 ? 1 : -1);
-
-    if (fabs(bugle) == 1) {
-        res.h = 0;
-    } else {
-        res.h = abHalf.norm() / std::tan(theta * HALF);
-    }
-    res.center = a + abHalf - res.inCircleDir * res.h;
-    res.theta = theta;
-    res.radius = (res.center - a).norm();
-    res.u = (a - res.center).normalize();
-    res.v = refNormal.cross(res.u);
-}
-} // namespace detail
-
 class Polyline : public ILine {
 public:
     Polyline(Pt3Array points, std::vector<real> bugles, const Vec3 &refNormal, bool closed = false)
@@ -136,18 +124,17 @@ public:
         return circularArcs;
     }
 
-private:
+protected:
     Pt3Array _points;
     std::vector<real> _bugles;
     Vec3 _refNormal;
     bool _closed;
-
     std::vector<CircularArc<Vec3>> circularArcs;
 
 public:
     void initSegInfo() {
         for (size_t i = 0; i < _bugles.size(); ++i) {
-            detail::initCircularArcInfo(_points[i], _points[(i + 1) % _points.size()], _bugles[i],
+            initCircularArcInfo(_points[i], _points[(i + 1) % _points.size()], _bugles[i],
                                 _refNormal, circularArcs[i]);
         }
     }
@@ -332,22 +319,39 @@ public:
         }
         std::cout << "}\n";
     }
-    static ClosestDescOnSeg segPtDist(const Vec3 &p, const Vec3 &A, const Vec3 &B) {
-        Vec3 AB = B - A;
-        Vec3 AP = p - A;
-        real h = std::clamp(AP.dot(AB) / AB.dot(AB), 0., 1.);
-        return {h, (AP - AB * h).norm()};
+
+    [[nodiscard]] bool isEndParam(real t) const override {
+        return t < EPS_END_PARAM || t > static_cast<real>(_bugles.size()) - EPS_END_PARAM;
     }
 
-    static ClosestDescOnSeg segPtDist(const Vec2 &p, const Vec2 &A, const Vec2 &B) {
-        Vec2 AB = B - A;
-        Vec2 AP = p - A;
-        real h = std::clamp(AP.dot(AB) / AB.dot(AB), 0., 1.);
-        return {h, (AP - AB * h).norm()};
+private:
+    void initCircularArcInfo(const Vec3 &a, const Vec3 &b, real bugle, const Vec3 &refNormal,
+                             CircularArc<Vec3> &res) {
+        if (isEqual(bugle, 0)) {
+            res.radius = INFINITY;
+            res.theta = 0;
+            res.h = INFINITY;
+            res.inCircleDir = refNormal.cross(b - a).normalize();
+            res.u = res.inCircleDir;
+            res.v = refNormal.cross(res.u);
+            return;
         }
 
-    [[nodiscard]] bool isEndParam(real t) const override {
-        return t < EPS_END_PARAM || t > static_cast<real>(_bugles.size()) - EPS_END_PARAM;
+        Vec3 abHalf = (b - a) * HALF;
+        Vec3 abNorm = abHalf.normalize();
+        real theta = std::atan(fabs(bugle)) * 4;
+        res.inCircleDir = abNorm.cross(refNormal) * (bugle > 0 ? 1 : -1);
+
+        if (fabs(bugle) == 1) {
+            res.h = 0;
+        } else {
+            res.h = abHalf.norm() / std::tan(theta * HALF);
+        }
+        res.center = a + abHalf - res.inCircleDir * res.h;
+        res.theta = theta;
+        res.radius = (res.center - a).norm();
+        res.u = (a - res.center).normalize();
+        res.v = refNormal.cross(res.u);
     }
 };
 
@@ -481,27 +485,19 @@ public:
 };
 
 // 单段圆弧
-// 其实就是
-class ArcLine : public ILine {
+class ArcLine : public Polyline {
 public:
     ArcLine(const Vec3 &a, const Vec3 &b, real bugle, const Vec3 &refNormal)
-        : _a(a), _b(b), _bugle(bugle), _refNormal(refNormal.normalize()) {}
-
-    bool isEndParam(real t) const override { return t < EPS || t > 1 - EPS; }
-    Vec3 eval(real t) override { return {}; };
-
-    Vec3 der1(real t) override { return {}; };
-
-    Vec3 der2(real t) override { return {}; };
-
+        // : _a(a), _b(b), _bugle(bugle), _refNormal(refNormal.normalize()) {}
+        : Polyline(Pt3Array{{a, b}}, std::vector<real>{bugle}, refNormal, false) {}
     ClosestDescOnSeg getClosestParam(const Vec3 &p) override { return {}; };
+    [[nodiscard]] const std::vector<real> &getBugles() const = delete;
+    [[nodiscard]] const real &getBugle() const { return _bugles[0]; }
 
-private:
-    Vec3 _a, _b, _refNormal;
-    real _bugle;
-    CircularArc<Vec3> _circularArc;
-
-    void initArcInfo() { detail::initCircularArcInfo(_a, _b, _bugle, _refNormal, _circularArc); }
+    // private:
+    // Vec3 _a, _b, _refNormal;
+    // real _bugle;
+    // CircularArc<Vec3> _circularArc;
 };
 
 class PolynomialLine : public ILine {

include/solid.hpp

@@ -50,6 +50,8 @@ protected:
     std::vector<Pt2Array> _localProfiles2D;
     std::vector<std::vector<CircularArc<Vec2>>> _localArcs2d;
     Vec3 _biNormalStartPt;
+
+public:
     IExtrudedSolidBase(std::vector<Polyline> profiles, AxisLineType axis, real rScale)
         : ISolid(), _profiles(std::move(profiles)), _axis(std::move(axis)), _rScale(rScale) {
         assert(!_profiles.empty());
@@ -263,6 +265,9 @@ private:
 
     static ClosestDescOnSeg distance2Arc2D(const Vec2 &p2D, const Vec2 &a, const Vec2 &b,
                                            const CircularArc<Vec2> &arc) {
+        if (isEqual(arc.theta, 0)) {
+            return segPtDist(p2D, a, b);
+        }
         const Vec2 &center = arc.center;
         Vec2 op = p2D - center;
         Vec2 q = center + arc.radius * op.normalize(); // closest pt on circle
@@ -370,6 +375,12 @@ public:
     // }
 };
 
+class ExtrudeSolidArcLine : public ExtrudedSolidPolyline {
+public:
+    ExtrudeSolidArcLine(std::vector<Polyline> profiles, ArcLine axis, real rScale = 1.0)
+        : ExtrudedSolidPolyline(std::move(profiles), std::move(axis), rScale) {}
+};
+
 class ExtrudedSolidHelixLine : public IExtrudedSolidBase<HelixLine> {
 public:
     ExtrudedSolidHelixLine(std::vector<Polyline> profiles, HelixLine axis, real rScale = 1.0)

main.cpp

@@ -4,18 +4,10 @@
 // TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
 // click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
 int main() {
-    // TIP Press <shortcut actionId="RenameElement"/> when your caret is at the
-    // <b>lang</b> variable name to see how CLion can help you rename it.
-    auto lang = "C++";
-    std::cout << "Hello and welcome to " << lang << "!\n";
-
-    for (int i = 1; i <= 5; i++) {
-        // TIP Press <shortcut actionId="Debug"/> to start debugging your code.
-        // We have set one <icon src="AllIcons.Debugger.Db_set_breakpoint"/>
-        // breakpoint for you, but you can always add more by pressing
-        // <shortcut actionId="ToggleLineBreakpoint"/>.
-        std::cout << "i = " << i << std::endl;
-    }
+    Polyline axis{{}, {}, Vec3()};
+    ExtrudedSolidPolyline a({axis}, axis);
+    const Vec3 queryP = Vec3();
+    auto f = a.sdf(queryP);
 
     return 0;
 }