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1. ## Drawing of bissectrisa.

How I can draw the blue line?

2. if you have normals of A and B pointing to one direction, then blue line direction will be (n(A) + n(B))/2

3. Originally Posted by realMakc
if you have normals of A and B pointing to one direction, then blue line direction will be (n(A) + n(B))/2
How I can determine normals direction relative one another?

4. On the 2nd thought, you can also do this with direction vectors themselves. Assuming you know some two points on A and B, you have d(A) = (A - O)/|A - O| and d(B) = (B - O)/|B - O|, then d(C) = (d(A) + d(B)) / |d(A) + d(B)|

5. Originally Posted by realMakc
On the 2nd thought, you can also do this with direction vectors themselves. Assuming you know some two points on A and B, you have d(A) = (A - O)/|A - O| and d(B) = (B - O)/|B - O|, then d(C) = (d(A) + d(B)) / |d(A) + d(B)|
I dont understand mean the d(C) - what is it?

6. direction vector of line C

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