+ implement global draw styles

+ use double precision in XML file
+ fix crash with in SoBrepFaceSet

git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5083 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d

src/Base/Writer.cpp

@@ -177,6 +177,8 @@ ZipWriter::ZipWriter(const char* FileName)
     //FIXME: Check whether this is correct
     ZipStream.imbue(std::locale::classic());
 #endif
+    ZipStream.precision(12);
+    ZipStream.setf(ios::fixed,ios::floatfield);
 }
 
 ZipWriter::ZipWriter(std::ostream& os) 
@@ -188,6 +190,8 @@ ZipWriter::ZipWriter(std::ostream& os)
     //FIXME: Check whether this is correct
     ZipStream.imbue(std::locale::classic());
 #endif
+    ZipStream.precision(12);
+    ZipStream.setf(ios::fixed,ios::floatfield);
 }
 
 void ZipWriter::writeFiles(void)