diff options
Diffstat (limited to 'Master/texmf-dist/asymptote/three_surface.asy')
| -rw-r--r-- | Master/texmf-dist/asymptote/three_surface.asy | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/Master/texmf-dist/asymptote/three_surface.asy b/Master/texmf-dist/asymptote/three_surface.asy index bf070e2a4a9..faf56b546f4 100644 --- a/Master/texmf-dist/asymptote/three_surface.asy +++ b/Master/texmf-dist/asymptote/three_surface.asy @@ -1115,6 +1115,21 @@ patch subpatch(patch s, pair a, pair b) return patch(subpatch(s.P,a,b),s.straight,s.planar); } +// return an array containing an intersection times of path p and surface s. +real[] intersect(path3 p, patch s, real fuzz=-1) +{ + return intersect(p,s.P,fuzz); +} + +// return an array containing an intersection times of path p and surface s. +real[] intersect(path3 p, surface s, real fuzz=-1) +{ + for(int i=0; i < s.s.length; ++i) { + real[] T=intersect(p,s.s[i].P,fuzz); + if(T.length > 0) return T; + } + return new real[]; +} // return an array containing all intersection times of path p and patch s. real[][] intersections(path3 p, patch s, real fuzz=-1) @@ -1168,8 +1183,8 @@ bool overlap(triple[][] p, triple[][] q, real fuzz=-1) triple qmin=minbound(q); triple qmax=maxbound(q); - static real Fuzz=1000*realEpsilon; - real fuzz=max(10*fuzz,Fuzz*max(abs(pmin),abs(pmax))); + if(fuzz == -1) + fuzz=1000*realEpsilon*max(abs(pmin),abs(pmax),abs(qmin),abs(qmax)); return pmax.x+fuzz >= qmin.x && @@ -1363,7 +1378,7 @@ nullpens.cyclic=true; void draw(transform t=identity(), frame f, surface s, int nu=1, int nv=1, material[] surfacepen, pen[] meshpen=nullpens, - light light=currentlight, light meshlight=light, string name="", + light light=currentlight, light meshlight=nolight, string name="", render render=defaultrender, projection P=currentprojection) { bool is3D=is3D(); @@ -1450,7 +1465,7 @@ void draw(transform t=identity(), frame f, surface s, int nu=1, int nv=1, void draw(transform t=identity(), frame f, surface s, int nu=1, int nv=1, material surfacepen=currentpen, pen meshpen=nullpen, - light light=currentlight, light meshlight=light, string name="", + light light=currentlight, light meshlight=nolight, string name="", render render=defaultrender, projection P=currentprojection) { material[] surfacepen={surfacepen}; @@ -1462,7 +1477,7 @@ void draw(transform t=identity(), frame f, surface s, int nu=1, int nv=1, void draw(picture pic=currentpicture, surface s, int nu=1, int nv=1, material[] surfacepen, pen[] meshpen=nullpens, - light light=currentlight, light meshlight=light, string name="", + light light=currentlight, light meshlight=nolight, string name="", render render=defaultrender) { if(s.empty()) return; @@ -1507,7 +1522,7 @@ void draw(picture pic=currentpicture, surface s, int nu=1, int nv=1, void draw(picture pic=currentpicture, surface s, int nu=1, int nv=1, material surfacepen=currentpen, pen meshpen=nullpen, - light light=currentlight, light meshlight=light, string name="", + light light=currentlight, light meshlight=nolight, string name="", render render=defaultrender) { material[] surfacepen={surfacepen}; @@ -1519,7 +1534,7 @@ void draw(picture pic=currentpicture, surface s, int nu=1, int nv=1, void draw(picture pic=currentpicture, surface s, int nu=1, int nv=1, material[] surfacepen, pen meshpen, - light light=currentlight, light meshlight=light, string name="", + light light=currentlight, light meshlight=nolight, string name="", render render=defaultrender) { pen[] meshpen={meshpen}; |