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authorConstantin Jucovschi <cj@ubuntu.localdomain>2009-04-24 07:20:22 -0400
committerConstantin Jucovschi <cj@ubuntu.localdomain>2009-04-24 07:20:22 -0400
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treebd328a4dd4f92d32202241b5e3a7f36177792c5f /rasodmg/tiling.hh
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+/*
+* This file is part of rasdaman community.
+*
+* Rasdaman community is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* Rasdaman community is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with rasdaman community. If not, see <http://www.gnu.org/licenses/>.
+*
+* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
+rasdaman GmbH.
+*
+* For more information please see <http://www.rasdaman.org>
+* or contact Peter Baumann via <baumann@rasdaman.com>.
+/
+/**
+ * INCLUDE: tiling.hh
+ *
+ * MODULE: rasodmg
+ * CLASS: r_Tiling
+ *
+ * COMMENTS:
+ * None
+*/
+
+#ifndef _R_TILING_HH_
+#define _R_TILING_HH_
+
+class r_Tiling;
+class r_No_Tiling;
+class r_Size_Tiling;
+class r_Dimension_Tiling;
+class r_Minterval;
+
+// Include statements
+
+#include <vector>
+#include <iostream>
+using std::cout;
+
+#include "raslib/rminit.hh"
+#include "raslib/odmgtypes.hh"
+#include "raslib/mddtypes.hh"
+#include "raslib/error.hh"
+
+//@ManMemo: Module {\bf rasodmg}
+
+/*@Doc:
+
+ The {\tt r_Tiling} class is used to specify in which way the tiling is done
+ by the system. The core method that does that is called {\tt decomposeMDD()}
+ and must be implemented by all derived classes. It takes an object that
+ hasn't yet been split and divides it into tiles. Each derived class
+ implements a diferent decomposition method.
+*/
+
+class r_Tiling
+ {
+ public:
+
+ /// does not do anything
+ virtual ~r_Tiling();
+
+ /// Prints the current status of the object
+ virtual void print_status(std::ostream& os) const = 0;
+
+ /// Check compatibility of object domain with this tiling
+ virtual bool is_compatible(const r_Minterval& obj_domain, r_Bytes cellTypeSize) const = 0;
+
+ /// Decompose an object in tiles
+ virtual std::vector<r_Minterval>* compute_tiles(const r_Minterval& obj_domain, r_Bytes cell_size) const throw (r_Error) = 0;
+ /**
+ This method provides the core funcionality of this class. All derived
+ classes must implement it. As input parameters it takes the big object to
+ be decomposed and returns a set of tiles that compose the big object.
+ This method throws an exeception when the dimension specified, extend or
+ the cell_size are incompatible with the current tiling. You can check
+ compatibility by invoking is_compatible.
+ */
+
+ /// Clones this object
+ virtual r_Tiling* clone() const = 0;
+ /**
+ This method is similar to a copy constructor, this is, is returns a copy of
+ the current object. Derived classes must explicitly implement this method.
+ */
+
+ virtual r_Tiling_Scheme get_tiling_scheme() const = 0;
+ /**
+ return the type of tiling scheme
+ */
+
+ static const char* ASTERIX;
+ static const char* COLON;
+ static const char* COMMA;
+ static const char* LSQRBRA;
+ static const char* RSQRBRA;
+ static const long DefaultBase;
+ };
+
+class r_Size_Tiling : public r_Tiling
+ {
+ public:
+ /// Constructor that reads everything from a string
+ /// e.g."100"
+ r_Size_Tiling(const char* encoded) throw (r_Error);
+
+ /// Constructor for this object (Takes tile size as parameter)
+ r_Size_Tiling(r_Bytes ts = RMInit::clientTileSize);
+
+ /// does not do anything
+ virtual ~r_Size_Tiling();
+
+ /// Gets the current tile size
+ r_Bytes get_tile_size() const;
+
+ virtual void print_status(std::ostream& os) const;
+
+ /// returns true if the cellTypeSize is smaller or equal to the tile size and obj_domain has more than 0 dimensions
+ virtual bool is_compatible(const r_Minterval& obj_domain, r_Bytes cellTypeSize) const;
+
+ virtual std::vector<r_Minterval>* compute_tiles(const r_Minterval& obj_domain, r_Bytes cellTypeSize) const throw (r_Error);
+
+ virtual r_Tiling* clone() const;
+
+ virtual r_Tiling_Scheme get_tiling_scheme() const;
+
+ static const char* description;
+
+ protected:
+
+ /// Tile size
+ r_Bytes tile_size;
+ };
+
+
+class r_Dimension_Tiling : public r_Size_Tiling
+ {
+ public:
+ /// Constructor for this object (Takes dim (no of dimension) and tile size as parameter)
+ r_Dimension_Tiling(r_Dimension dim, r_Bytes ts = RMInit::clientTileSize);
+
+ /// does not do anything
+ virtual ~r_Dimension_Tiling();
+
+ /// Gets the current dimension
+ r_Dimension get_dimension() const;
+
+ virtual void print_status(std::ostream& os) const;
+
+ virtual bool is_compatible(const r_Minterval& obj_domain, r_Bytes cellTypeSize) const;
+ /// returns true if the cellTypeSize is smaller or equal to the tile size and the dimension fits the obj_domain
+
+ virtual std::vector<r_Minterval>* compute_tiles(const r_Minterval& obj_domain, r_Bytes cellTypeSize) const throw (r_Error) = 0;
+
+ virtual r_Tiling* clone() const = 0;
+
+ protected:
+
+ /// dimension the mdd must have
+ r_Dimension dimension;
+ };
+
+
+class r_No_Tiling : public r_Tiling
+ {
+ public:
+ /// Constructor that reads everything from a string e.g."100"
+ /// This string is ignored in the constructor, it is present
+ /// in order to have an uniform interface
+ r_No_Tiling(const char* encoded) throw (r_Error);
+ /// Constructor for this object
+ r_No_Tiling();
+
+ /// does not do anything
+ virtual ~r_No_Tiling();
+
+ /// Prints the current status of the object
+ virtual void print_status(std::ostream& os) const;
+
+ /// Check compatibility of object domain with this tiling
+ virtual bool is_compatible(const r_Minterval& obj_domain, r_Bytes cellTypeSize) const;
+ /// returns true
+
+ /// Decompose an object in tiles
+ virtual std::vector<r_Minterval>* compute_tiles(const r_Minterval& obj_domain, r_Bytes cellTypeSize) const throw (r_Error);
+ /// returns obj_domain
+
+ virtual r_Tiling* clone() const;
+
+ virtual r_Tiling_Scheme get_tiling_scheme() const;
+
+ static const char* description;
+ };
+
+
+/*@Doc:
+ Prints the status of a Tiling object to a stream
+*/
+//extern std::ostream& operator<<(std::ostream& os, const r_Size_Tiling& t);
+
+/*@Doc:
+ Prints the status of a Tiling object to a stream
+*/
+//extern std::ostream& operator<<(std::ostream& os, const r_No_Tiling& t);
+
+/*@Doc:
+ Prints the status of a Tiling object to a stream
+*/
+extern std::ostream& operator<<(std::ostream& os, const r_Tiling& t);
+
+#include "rasodmg/tiling.hh"
+#if (defined(__VISUALC__) && !defined(__EXECUTABLE__))
+ #define __EXECUTABLE__
+ #include "raslib/dlist.hh"
+ #undef __EXECUTABLE__
+#else
+ #include "raslib/dlist.hh"
+#endif
+
+#endif