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PNS: Local min distance has a minimum points requirement 

Fixes https://gitlab.com/kicad/code/kicad/-/issues/8510
This commit is contained in:
Jon Evans 2021-05-29 12:39:14 -04:00
parent eff9746f34
commit bd59da3642
1 changed files with 29 additions and 19 deletions
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48
pcbnew/router/pns_line_placer.cpp
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@ -470,28 +470,10 @@ static bool cursorDistMinimum( const SHAPE_LINE_CHAIN& aL, const VECTOR2I& aCurs
int minDistGlob = std::numeric_limits<int>::max();
int minPGlob = -1;
for( int i = 0; i < dists.size() - 3; i++ )
{
if( dists[i + 2] > dists[i + 1] && dists[i] > dists[i + 1] )
{
int d = dists[i + 1];
if( d < minDistLoc )
{
minDistLoc = d;
minPLoc = i + 1;
}
}
}
if ( dists.back() < minDistLoc && minPLoc >= 0 )
{
minDistLoc = dists.back();
minPLoc = dists.size() - 1;
}
for( int i = 0; i < dists.size(); i++ )
{
int d = dists[i];
if( d < minDistGlob )
{
minDistGlob = d;
@ -499,6 +481,34 @@ static bool cursorDistMinimum( const SHAPE_LINE_CHAIN& aL, const VECTOR2I& aCurs
}
}
if( dists.size() >= 3 )
{
for( int i = 0; i < dists.size() - 3; i++ )
{
if( dists[i + 2] > dists[i + 1] && dists[i] > dists[i + 1] )
{
int d = dists[i + 1];
if( d < minDistLoc )
{
minDistLoc = d;
minPLoc = i + 1;
}
}
}
if( dists.back() < minDistLoc && minPLoc >= 0 )
{
minDistLoc = dists.back();
minPLoc = dists.size() - 1;
}
}
else
{
// Too few points: just use the global
minDistLoc = minDistGlob;
minPLoc = minPGlob;
}
// fixme: I didn't make my mind yet if local or global minimum feels better. I'm leaving both
// in the code, enabling the global one by default
minPLoc = -1;