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Add a 1nm tolerance to prevent rotated pad roundoff errors. 

Fixes https://gitlab.com/kicad/code/kicad/issues/4139
This commit is contained in:
Jeff Young 2020-05-22 18:03:42 +01:00
parent 94ed433f64
commit 9a08ee2778
1 changed files with 3 additions and 2 deletions
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5
pcbnew/drc/drc.cpp
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@ -1209,6 +1209,7 @@ bool DRC::doPadToPadsDrc( BOARD_COMMIT& aCommit, D_PAD* aRefPad, D_PAD** aStart,
int x_limit )
{
const static LSET all_cu = LSET::AllCuMask();
constexpr int TOLERANCE = 1; // 1nm tolerance for rotated pad rounding errors.
LSET layerMask = aRefPad->GetLayerSet() & all_cu;
@ -1347,8 +1348,8 @@ bool DRC::doPadToPadsDrc( BOARD_COMMIT& aCommit, D_PAD* aRefPad, D_PAD** aStart,
continue;
}
int minClearance = aRefPad->GetClearance( pad, &m_clearanceSource );
int actual;
int minClearance = aRefPad->GetClearance( pad, &m_clearanceSource ) - TOLERANCE;
int actual;
if( !checkClearancePadToPad( aRefPad, pad, minClearance, &actual ) )
{