fixed block

apps/main.cpp

@@ -23,5 +23,9 @@ int main(int argc, char **argv) {
     std::cout<<vec<<std::endl;
     std::cout<<vec.len()<<std::endl;
     std::cout<<block<<std::endl;
+    std::vector<LinAlg::Vector3> normals=block.getNormals();
+    for(LinAlg::Vector3 vector:normals){
+        std::cout<<vector<<std::endl;
+    }
     return 0;
 }

include/Block/block.h

@@ -6,6 +6,8 @@
 #define BLOCK_BLOCK_H
 
 #include <LinAlg/vector3.h>
+#include <LinAlg/plane.h>
+#include <vector>
 
 namespace Volumes{
     class Block{
@@ -13,7 +15,8 @@ namespace Volumes{
         Block(const LinAlg::Vector3& v1, double x, double y, double z): corners{v1,
                                                                                 v1 + LinAlg::Vector3(x, 0, 0),
                                                                                 v1 + LinAlg::Vector3(x, y, 0),
-                                                                                v1 + LinAlg::Vector3(0, y, z), v1,
+                                                                                v1 + LinAlg::Vector3(0, y, 0),
+                                                                                v1+ LinAlg::Vector3(0, y, z),
                                                                                 v1 + LinAlg::Vector3(x, y, z),
                                                                                 v1 + LinAlg::Vector3(x, 0, z),
                                                                                 v1 + LinAlg::Vector3(0, 0, z)}{};
@@ -35,7 +38,12 @@ namespace Volumes{
             return os;
         }
 
+        std::vector<LinAlg::Vector3> getNormals();
+
+        LinAlg::Vector3 getNormal(u_int8_t index);
+
     private:
+
         LinAlg::Vector3 corners[8];
     };
 }

include/LinAlg/matrix3.h

@@ -5,14 +5,13 @@
 #ifndef VOLSVECS_MATRIX3_H
 #define VOLSVECS_MATRIX3_H
 
+#include "LinAlg/matrixmxn.h"
+
 namespace LinAlg{
-    class Matrix3{
+    class Matrix3: public Matrix<3,3>{
     public:
 
     private:
-        short static getIndex(int x, int y);
-
-        double elements[9];
     };
 }
 

include/LinAlg/matrixmxn.h

@@ -8,6 +8,9 @@
 namespace LinAlg{
     template<short m,short n>
     class Matrix{
+    public:
+
+        virtual ~Matrix()=default;
 
     protected:
         int static getIndex(short x, short y){
@@ -15,8 +18,8 @@ namespace LinAlg{
             if(y>=n) return -2;
             return x+y*n;
         }
-    private:
+
-        double _entris[m*n];
+        double _entries[m*n];
     };
 }
 

include/LinAlg/plane.h

@@ -0,0 +1,22 @@
+//
+// Created by nb on 21.07.24.
+//
+
+#ifndef VOLSVECS_PLANE_H
+#define VOLSVECS_PLANE_H
+
+#include "LinAlg/vector3.h"
+
+namespace LinAlg{
+    class Plane{
+    public:
+        Plane(const Vector3& a, const Vector3& b, const Vector3& c): _entries{a, b-a, c-a}{};
+
+        Vector3 getNormal();
+
+        virtual ~Plane()=default;
+    private:
+        Vector3 _entries[3];
+    };
+}
+#endif //VOLSVECS_PLANE_H

src/block.cpp

@@ -10,4 +10,42 @@ namespace Volumes{
         LinAlg::Vector3 z= corners[7] - corners[0];
         return x.len()*y.len()*z.len();
     }
+
+    std::vector<LinAlg::Vector3> Block::getNormals() {
+        std::vector<LinAlg::Vector3> ret;
+        for(int i=0;i<6;i++) {
+            ret.push_back(getNormal(i));
+        }
+        return ret;
+    }
+
+    LinAlg::Vector3 Block::getNormal(u_int8_t index) {
+        switch(index){
+            case 0:{
+                LinAlg::Plane tmp(corners[1],corners[0],corners[2]);
+                return tmp.getNormal();
+            };
+            case 1:{
+                LinAlg::Plane tmp(corners[3],corners[4],corners[2]);
+                return tmp.getNormal();
+            }
+            case 2:{
+                LinAlg::Plane tmp(corners[7],corners[4],corners[0]);
+                return tmp.getNormal();
+            }
+            case 3:{
+                LinAlg::Plane tmp(corners[5],corners[6],corners[2]);
+                return tmp.getNormal();
+            }
+            case 4:{
+                LinAlg::Plane tmp(corners[5],corners[4],corners[6]);
+                return tmp.getNormal();
+            }
+            case 5:{
+                LinAlg::Plane tmp(corners[6],corners[7],corners[1]);
+                return tmp.getNormal();
+            }
+            default: return LinAlg::Vector3();
+        }
+    }
 }

src/matrix3.cpp

@@ -4,7 +4,4 @@
 #include "LinAlg/matrix3.h"
 
 namespace LinAlg{
-    short Matrix3::getIndex(int x, int y) {
-        return x+y*3;
-    }
 }

src/plane.cpp

@@ -0,0 +1,11 @@
+//
+// Created by nb on 21.07.24.
+//
+#include "LinAlg/plane.h"
+
+namespace LinAlg{
+    Vector3 Plane::getNormal() {
+        Vector3 temp = (_entries[1].cross(_entries[2])).norm();
+        return temp;
+    }
+}