issues of the cost of the edge

[yjpzuishuai]

Q_a += 1.0f - clamp(float(4.0f * sqrt(3.0f) * triangle_area(new_v0, new_v1, new_v2) / pow(edge_length(new_v0, new_v1), 2) +pow(edge_length(new_v1, new_v2), 2) + pow(edge_length(new_v2, new_v0), 2) + 0.0000001f), 0.0f, 1.0f);
may be
Q_a += 1.0f - clamp(float(4.0f * sqrt(3.0f) * triangle_area(new_v0, new_v1, new_v2) / (pow(edge_length(new_v0, new_v1), 2) + pow(edge_length(new_v1, new_v2), 2) + pow(edge_length(new_v2, new_v0), 2) + 0.0000001f)), 0.0f, 1.0f);