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nilv:: geodesic wall surfaces

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This commit is contained in:
Zeno Rogue 2019-08-06 21:09:12 +02:00
parent 21a7869e0b
commit 4d64618600
2 changed files with 11 additions and 0 deletions
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7
nonisotropic.cpp
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@ -526,6 +526,13 @@ namespace nilv {
} }
}; };
hyperpoint on_geodesic(hyperpoint s0, hyperpoint s1, ld x) {
using namespace hyperpoint_vec;
hyperpoint local = inverse(nisot::translate(s0)) * s1;
hyperpoint h = get_inverse_exp(local, 100);
return nisot::translate(s0) * formula_exp(h * x);
}
} }
namespace nisot { namespace nisot {

4
polygons.cpp
View File

@ -717,6 +717,8 @@ void geometry_information::make_wall(int id, vector<hyperpoint> vertices, vector
hyperpoint v2 = vertices[(a+1)%n] - center; hyperpoint v2 = vertices[(a+1)%n] - center;
texture_order([&] (ld x, ld y) { texture_order([&] (ld x, ld y) {
hyperpoint h = center + v1 * x + v2 * y; hyperpoint h = center + v1 * x + v2 * y;
if(nil && (x || y))
h = nilv::on_geodesic(center, nilv::on_geodesic(v1+center, v2+center, y / (x+y)), x + y);
if(sol || !binarytiling) { hpcpush(normalize(h)); return; } if(sol || !binarytiling) { hpcpush(normalize(h)); return; }
hyperpoint res = binary::parabolic3(h[0], h[1]) * xpush0(yy*h[2]); hyperpoint res = binary::parabolic3(h[0], h[1]) * xpush0(yy*h[2]);
hpcpush(res); hpcpush(res);
@ -728,6 +730,8 @@ void geometry_information::make_wall(int id, vector<hyperpoint> vertices, vector
int STEP = vid.texture_step; int STEP = vid.texture_step;
for(int a=0; a<n; a++) for(int y=0; y<STEP; y++) { for(int a=0; a<n; a++) for(int y=0; y<STEP; y++) {
hyperpoint h = (vertices[a] * (STEP-y) + vertices[(a+1)%n] * y)/STEP; hyperpoint h = (vertices[a] * (STEP-y) + vertices[(a+1)%n] * y)/STEP;
if(nil)
h = nilv::on_geodesic(vertices[a], vertices[(a+1)%n], y * 1. / STEP);
if(sol || !binarytiling) { hpcpush(normalize(h)); continue; } if(sol || !binarytiling) { hpcpush(normalize(h)); continue; }
hyperpoint res = binary::parabolic3(h[0], h[1]) * xpush0(yy*h[2]); hyperpoint res = binary::parabolic3(h[0], h[1]) * xpush0(yy*h[2]);
hpcpush(res); hpcpush(res);