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- tentaivo di correzione intersezione tra segmenti di retta quasi paralleli.
This commit is contained in:
Dario Sassi
2026-01-12 08:15:06 +01:00
parent 4a0bd638fa
commit afef5597b2
1 changed files with 10 additions and 0 deletions
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IntersLineLine.cpp
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@@ -158,6 +158,16 @@ IntersLineLine::IntersFiniteLines( const CurveLine& Line1, const CurveLine& Line
bool bParallel = ( abs( dCrossXY) < SIN_EPS_ANG_ZERO * ( dLen1XY * dLen2XY)) ;
// flag per segmenti che si allontanano significativamente
bool bFarEnds = ( nS1Side != 0 || nE1Side != 0 || nS2Side != 0 || nE2Side != 0) ;
// analisi casi speciali di quasi parallelismo
if ( ! bParallel && abs( dCrossXY) < ( 0.1 * DEGTORAD) * ( dLen1XY * dLen2XY)) {
if (( nS1Side == 0 && nS2Side == 0 && ! AreSamePointXYEpsilon( ptS1, ptS2, 2 * EPS_SMALL)) ||
( nS1Side == 0 && nE2Side == 0 && ! AreSamePointXYEpsilon( ptS1, ptE2, 2 * EPS_SMALL)) ||
( nE1Side == 0 && nS2Side == 0 && ! AreSamePointXYEpsilon( ptE1, ptS2, 2 * EPS_SMALL)) ||
( nE1Side == 0 && nE2Side == 0 && ! AreSamePointXYEpsilon( ptE1, ptE2, 2 * EPS_SMALL))) {
bParallel = true ;
bFarEnds = false ;
}
}
// se non sono paralleli e si allontanano tra loro abbastanza
if ( ! bParallel && bFarEnds) {