Re: [fpc-pascal] Tree structure
On Tue, 12 Feb 2013, Leonardo M. Ramé wrote: Hi, I would like to know if there's a standard tree structure where each node is a TObject. With standard I mean, in a standard package, like fcl-base. there is one in the generics. But not as a regular class. Michael.___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Tree structure
On 2013-02-12 16:13, Leonardo M. Ramé wrote: Hi, I would like to know if there's a standard tree structure where each node is a TObject. With standard I mean, in a standard package, like fcl-base. Leonardo M. Ramé http://leonardorame.blogspot.com ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal FCL_base does have one: avl_tree but so does LCL, which is named AvgLvlTree (found in LazUtils) I hope that helps... ;) Kind regards, Torsten Bonde Christiansen. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Tree structure
On Tue, 12 Feb 2013, Torsten Bonde Christiansen wrote: On 2013-02-12 16:13, Leonardo M. Ramé wrote: Hi, I would like to know if there's a standard tree structure where each node is a TObject. With standard I mean, in a standard package, like fcl-base. Leonardo M. Ramé http://leonardorame.blogspot.com ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal FCL_base does have one: avl_tree Does not allow multiple children, only left/right, no ? Michael.___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Tree structure
On 2013-02-12 16:36, Michael Van Canneyt wrote: On Tue, 12 Feb 2013, Torsten Bonde Christiansen wrote: On 2013-02-12 16:13, Leonardo M. Ramé wrote: Hi, I would like to know if there's a standard tree structure where each node is a TObject. With standard I mean, in a standard package, like fcl-base. Leonardo M. Ramé http://leonardorame.blogspot.com ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal FCL_base does have one: avl_tree Does not allow multiple children, only left/right, no ? Michael. True - but the original question gives no hint to whether this is desired or not... :) -Torsten. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Tree structure
From: Michael Van Canneyt mich...@freepascal.org To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org Sent: Tuesday, February 12, 2013 12:36 PM Subject: Re: [fpc-pascal] Tree structure On Tue, 12 Feb 2013, Torsten Bonde Christiansen wrote: On 2013-02-12 16:13, Leonardo M. Ramé wrote: Hi, I would like to know if there's a standard tree structure where each node is a TObject. With standard I mean, in a standard package, like fcl-base. Leonardo M. Ramé http://leonardorame.blogspot.com FCL_base does have one: avl_tree Does not allow multiple children, only left/right, no ? Michael. Isn't that a balanced binary tree? I'm looking for a simple tree structure (http://en.wikipedia.org/wiki/Tree_%28data_structure%29) Leonardo M. Ramé http://leonardorame.blogspot.com ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Tree structure
- Original Message - From: Michael Van Canneyt mich...@freepascal.org To: Leonardo M. Ramé martinr...@yahoo.com; FPC-Pascal users discussions fpc-pascal@lists.freepascal.org Cc: Sent: Tuesday, February 12, 2013 12:28 PM Subject: Re: [fpc-pascal] Tree structure On Tue, 12 Feb 2013, Leonardo M. Ramé wrote: Hi, I would like to know if there's a standard tree structure where each node is a TObject. With standard I mean, in a standard package, like fcl-base. there is one in the generics. But not as a regular class. Michael Which one?. Leonardo M. Ramé http://leonardorame.blogspot.com ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Tree structure
On 2013-02-12 15:44, Leonardo M. Ramé wrote: Isn't that a balanced binary tree? I'm looking for a simple tree structure (http://en.wikipedia.org/wiki/Tree_%28data_structure%29) It should be rather simple to create. A simple Composite design pattern and about 30-45 minutes with some accompanied unit tests, and you should have everything you want. Regards, - Graeme - -- fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal http://fpgui.sourceforge.net/ ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Tree structure
- Original Message - From: Leonardo M. Ramé martinr...@yahoo.com To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org Cc: Sent: Tuesday, February 12, 2013 12:45 PM Subject: Re: [fpc-pascal] Tree structure - Original Message - From: Michael Van Canneyt mich...@freepascal.org To: Leonardo M. Ramé martinr...@yahoo.com; FPC-Pascal users discussions fpc-pascal@lists.freepascal.org Cc: Sent: Tuesday, February 12, 2013 12:28 PM Subject: Re: [fpc-pascal] Tree structure On Tue, 12 Feb 2013, Leonardo M. Ramé wrote: Hi, I would like to know if there's a standard tree structure where each node is a TObject. With standard I mean, in a standard package, like fcl-base. there is one in the generics. But not as a regular class. Michael Which one?. Well, I think TAvlTree fits the bill. Leonardo M. Ramé http://leonardorame.blogspot.com ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Tree structure
On 12.02.2013 16:44, Leonardo M. Ramé wrote: From: Michael Van Canneyt mich...@freepascal.org To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org Sent: Tuesday, February 12, 2013 12:36 PM Subject: Re: [fpc-pascal] Tree structure On Tue, 12 Feb 2013, Torsten Bonde Christiansen wrote: On 2013-02-12 16:13, Leonardo M. Ramé wrote: Hi, I would like to know if there's a standard tree structure where each node is a TObject. With standard I mean, in a standard package, like fcl-base. Leonardo M. Ramé http://leonardorame.blogspot.com FCL_base does have one: avl_tree Does not allow multiple children, only left/right, no ? Michael. Isn't that a balanced binary tree? I'm looking for a simple tree structure (http://en.wikipedia.org/wiki/Tree_%28data_structure%29) You could take a look at $fpcdir/packages/fcl-stl/gtree.pp (only in 2.7.1). Regards, Sven ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
