dwg import: fix exception (fixes #21177)

jef-n · jef-n · commit 355deb590586 · 2019-02-19T19:56:40.000+01:00
diff --git a/src/app/dwg/qgsdwgimporter.cpp b/src/app/dwg/qgsdwgimporter.cpp
@@ -1606,6 +1606,12 @@ void QgsDwgImporter::addLWPolyline( const DRW_LWPolyline &data )
       }
     }
 
+    if ( p0 == p1 )
+    {
+      QgsDebugMsg( QStringLiteral( "i:%1,%2 empty segment skipped" ).arg( i0 ).arg( i1 ) );
+      continue;
+    }
+
     if ( staWidth == endWidth )
     {
       if ( s.empty() )

Original file line number	Diff line number	Diff line change
`@@ -1606,6 +1606,12 @@ void QgsDwgImporter::addLWPolyline( const DRW_LWPolyline &data )`
`1606`	`1606`	`}`
`1607`	`1607`	`}`
`1608`	`1608`
	`1609`	`+ if ( p0 == p1 )`
	`1610`	`+ {`
	`1611`	`+ QgsDebugMsg( QStringLiteral( "i:%1,%2 empty segment skipped" ).arg( i0 ).arg( i1 ) );`
	`1612`	`+ continue;`
	`1613`	`+ }`
	`1614`	`+`
`1609`	`1615`	`if ( staWidth == endWidth )`
`1610`	`1616`	`{`
`1611`	`1617`	`if ( s.empty() )`