Changeset 6b3826 for molecuilder/src/vector.cpp

Timestamp:

Nov 27, 2008, 9:55:08 AM (17 years ago)

Author:

Christian Neuen <neuen@…>

Children:

f5b58e

Parents:

a709c4

Message:

In vector a function for calculation of the vector-(cross-)product has been added.
In Boundary a new way for finding the non-convex boundary is implemented.
Currently problem with comparison of the return value of the map::find routine.

File:

• molecuilder/src/vector.cpp (modified) (2 diffs)

molecuilder/src/vector.cpp

@@ -115 +115 @@
 };
 
+
+/** Calculates VectorProduct between this and another vector.
+ *  -# returns the Product in place of vector from which it was initiated
+ *  -# ATTENTION: Only three dim.
+ *  \param *y array to vector with which to calculate crossproduct
+ *  \return \f$ x \times y \f&
+ */ 
+void Vector::VectorProduct(const Vector *y)
+{
+  Vector tmp;
+  tmp[0] = x[1]*y->x[2] - x[2]*y->x[1];
+  tmp[1] = x[2]*y->x[0] - x[0]*y->x[2];
+  tmp[2] = x[0]*y->x[1] - x[1]*Y->x[0];
+  this->CopyVector(&tmp);
+
+};
+
+
 /** projects this vector onto plane defined by \a *y.
  * \param *y array to normal vector of plane
@@ -184 +202 @@
 };
 
-/** Calculates the angle between this and another vector.
+/** Calculates the angle between this and another vector. 
  * \param *y array to second vector
  * \return \f$\acos\bigl(frac{\langle x, y \rangle}{|x||y|}\bigr)\f$