3DPrinting/PrusaSlicer-NonPlainar
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Fix floating point divisions by zero when ground route has no bridge

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This commit is contained in:
tamasmeszaros 2023-01-09 15:20:35 +01:00
parent aec0c4a0dc
commit add0f89728
1 changed files with 11 additions and 3 deletions
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14
src/libslic3r/SLA/SupportTreeUtils.hpp
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@ -125,8 +125,11 @@ struct Beam_ { // Defines a set of rays displaced along a cone's surface
Beam_(const Ball &src_ball, const Ball &dst_ball) Beam_(const Ball &src_ball, const Ball &dst_ball)
: src{src_ball.p}, dir{dirv(src_ball.p, dst_ball.p)}, r1{src_ball.R} : src{src_ball.p}, dir{dirv(src_ball.p, dst_ball.p)}, r1{src_ball.R}
{ {
r2 = src_ball.R r2 = src_ball.R;
+ (dst_ball.R - src_ball.R) / distance(src_ball.p, dst_ball.p); auto d = distance(src_ball.p, dst_ball.p);
if (d > EPSILON)
r2 += (dst_ball.R - src_ball.R) / d;
} }
Beam_(const Vec3d &s, const Vec3d &d, double R) Beam_(const Vec3d &s, const Vec3d &d, double R)
@ -542,7 +545,7 @@ Vec3d check_ground_route(
if (brhit_dist < bridge_len) { if (brhit_dist < bridge_len) {
ret = (source.pos + brhit_dist * dir); ret = (source.pos + brhit_dist * dir);
} else { } else if (down_l > 0.) {
// check if pillar can be placed below // check if pillar can be placed below
auto gp = Vec3d{bridge_end.x(), bridge_end.y(), gndlvl}; auto gp = Vec3d{bridge_end.x(), bridge_end.y(), gndlvl};
double end_radius = wideningfn( double end_radius = wideningfn(
@ -565,6 +568,8 @@ Vec3d check_ground_route(
} }
ret = Vec3d{bridge_end.x(), bridge_end.y(), bridge_end.z() - gnd_hit_d}; ret = Vec3d{bridge_end.x(), bridge_end.y(), bridge_end.z() - gnd_hit_d};
} else {
ret = bridge_end;
} }
return ret; return ret;
@ -709,6 +714,9 @@ GroundConnection deepsearch_ground_connection(Ex policy,
{ {
double gndlvl = ground_level(sm); double gndlvl = ground_level(sm);
auto wfn = [end_radius, gndlvl](const Ball &src, const Vec3d &dir, double len) { auto wfn = [end_radius, gndlvl](const Ball &src, const Vec3d &dir, double len) {
if (len < EPSILON)
return src.R;
Vec3d dst = src.p + len * dir; Vec3d dst = src.p + len * dir;
double widening = end_radius - src.R; double widening = end_radius - src.R;
double zlen = dst.z() - gndlvl; double zlen = dst.z() - gndlvl;