hi, i have tried your code, it apperears so much errors 5.6.1/GD/Graph/Map.pm line 367. Use of uninitialized value in numeric lt (<) at /usr/local/lib/perl5/site_perl/5.6.1/GD/Graph/Map.pm line 361. Use of uninitialized value in numeric gt (>) at /usr/local/lib/perl5/site_perl/5.6.1/GD/Graph/Map.pm line 310. Use of uninitialized value in numeric gt (>) at /usr/local/lib/perl5/site_perl/5.6.1/GD/Graph/Map.pm line 311. Use of uninitialized value in numeric gt (>) at /usr/local/lib/perl5/site_perl/5.6.1/GD/Graph/Map.pm line 366. Use of uninitialized value in numeric lt (<) at /usr/local/lib/perl5/site_perl/5.6.1/GD/Graph/Map.pm line 367. Use of uninitialized value in numeric lt (<) at /usr/local/lib/perl5/site_perl/5.6.1/GD/Graph/Map.pm line 361. Use of uninitialized value in numeric eq (==) at /usr/local/lib/perl5/site_perl/5.6.1/GD/Graph/Map.pm line 309. Use of uninitialized value in numeric eq (==) at /usr/local/lib/perl5/site_perl/5.6.1/GD/Graph/Map.pm line 309. Use of uninitialized value in numeric eq (==) at /usr/local/lib/perl5/site_perl/5.6.1/GD/Graph/Map.pm line 309. Use of uninitialized value in numeric eq (==) at /usr/local/lib/perl5/site_perl/5.6.1/GD/Graph/Map.pm line 309. Use of uninitialized value in numeric eq (==) at /usr/local/lib/perl5/site_perl/5.6.1/GD/Graph/Map.pm line 309. Use of uninitialized value in numeric eq (==) at /usr/local/lib/perl5/site_perl/5.6.1/GD/Graph/Map.pm line 309. Use of uninitialized value in numeric eq (==) at /usr/local/lib/perl5/site_perl/5.6.1/GD/Graph/Map.pm line 309. in fact i meet a same problem, it seems MAP does not work with the objet Pie. i am looking forward to your response mail liu_haisheng@mentor.com regards