Changes between Version 1 and Version 2 of 3DDistancecalc

Timestamp:

Mar 30, 2011, 11:45:54 AM (13 years ago)

Author:

nicklas

Comment:

—

3DDistancecalc

@@ -172 +172 @@
 So in our example each slice contains 5 vertex-points. 
 
-Then we use the first vertex point together with the 6:th and the “point on plane” to define a perpendicular line (vector actually) to the plane.
+Then we use the first vertex point together with the 6:th and the “point on plane” to define a perpendicular line (vector actually) to the plane.[[BR]]
+[[Image(plane1.png)]]
 
-Then we use the 6:th vertex point and the 11 and do the same.
+Then we use the 6:th vertex point and the 11 and do the same.[[BR]]
+[[Image(plane2.png)]]
 
-Then the 11 and the 16 and last 16 and the 21.
+Then the 11 and the 16 [[BR]]
+[[Image(plane3.png)]]
 
-Depending on if the total number of vertex points is dividable by 4 the outcome will vary.[[BR]]
+and at last 16 and the 21.[[BR]]
+[[Image(plane4.png)]]
+
+
+From those perpendicular vectors we calculate an average normal vector that we use in the surface calculations.
+
+Depending on if the total number of vertex points is dividable by 4 the outcome will vary.
+
 The idea is to walk the way around in about 4 steps and use the average result.