X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fspring.cc;h=312b2ed00f49644598966832b50d1598396eae3b;hb=0a0274a3bf5792dfb7ce3719f5dfaef36059affe;hp=c576da374329bf22b196982c3276343587b56fbb;hpb=54b02666750062788185bd3f99e644d621e348c2;p=lilypond.git diff --git a/lily/spring.cc b/lily/spring.cc index c576da3743..312b2ed00f 100644 --- a/lily/spring.cc +++ b/lily/spring.cc @@ -1,7 +1,7 @@ /* This file is part of LilyPond, the GNU music typesetter. - Copyright (C) 2007--2011 Joe Neeman + Copyright (C) 2007--2012 Joe Neeman LilyPond is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -57,16 +57,15 @@ Spring::update_blocking_force () // Conceptually, this should be +inf, but 0.0 meets the requirements // of Simple_spacer and creates fewer cases of 0.0*inf to handle. blocking_force_ = 0.0; + else if (inverse_compress_strength_ > 0.0) + blocking_force_ = (min_distance_ - distance_) / inverse_compress_strength_; else - if (inverse_compress_strength_ > 0.0) - blocking_force_ = (min_distance_ - distance_) / inverse_compress_strength_; - else - blocking_force_ = 0.0; + blocking_force_ = 0.0; } /* scale a spring, but in a way that doesn't violate min_distance */ void -Spring::operator*= (Real r) +Spring::operator *= (Real r) { distance_ = max (min_distance_, distance_ * r); inverse_compress_strength_ = max (0.0, distance_ - min_distance_); @@ -75,7 +74,7 @@ Spring::operator*= (Real r) } bool -Spring::operator> (Spring const &other) const +Spring::operator > (Spring const &other) const { return blocking_force_ > other.blocking_force_; } @@ -98,9 +97,9 @@ merge_springs (vector const &springs) min_distance = max (springs[i].min_distance (), min_distance); } - avg_stretch /= springs.size (); - avg_compress /= springs.size (); - avg_distance /= springs.size (); + avg_stretch /= Real (springs.size ()); + avg_compress /= Real (springs.size ()); + avg_distance /= Real (springs.size ()); avg_distance = max (min_distance + 0.3, avg_distance); Spring ret = Spring (avg_distance, min_distance); @@ -203,7 +202,7 @@ Spring::length (Real f) const Real force = max (f, blocking_force_); Real inv_k = force < 0.0 ? inverse_compress_strength_ : inverse_stretch_strength_; - if (isinf(force)) + if (isinf (force)) { programming_error ("cruelty to springs"); force = 0.0;