crsproj.h

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#pragma once
 
/*+
________________________________________________________________________
 
 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Raman Singh
 Date:          April 2017
________________________________________________________________________
 
-*/
 
#include "crsmod.h"
#include "latlong.h"
#include "manobjectset.h"
#include "uistring.h"
 
class BufferStringSet;
 
namespace Coords
{
 
typedef int ProjectionID;
 
mExpClass(CRS) AuthorityCode
{
public:
                        AuthorityCode(const char* auth,ProjectionID i)
                            : authority_(auth),id_(i) {}
                        AuthorityCode(const AuthorityCode& oth)
                            : authority_(oth.authority_),id_(oth.id_) {}
 
    BufferString        authority() const { return authority_; }
    ProjectionID        id() const        { return id_; }
 
    bool                operator ==(const AuthorityCode&) const;
 
    static AuthorityCode        fromString(const char*);
    BufferString        toString() const;
 
protected:
 
    BufferString        authority_;
    ProjectionID        id_;
};
 
 
mExpClass(CRS) Projection
{ mODTextTranslationClass(Projection);
public:
 
                                Projection(AuthorityCode,const char* usernm,
                                           const char* defstr);
    virtual                     ~Projection();
 
    AuthorityCode               authCode() const        { return authcode_; }
    BufferString                userName() const        { return usernm_; }
    BufferString                defStr() const          { return defstr_; }
 
    virtual bool                isOK() const;
    virtual bool                getReady() const        { return true; }
 
    virtual bool                isOrthogonal() const;
    virtual bool                isLatLong() const       { return false; }
    virtual bool                isFeet() const;
    virtual bool                isMeter() const;
 
    static void                 getAll( TypeSet<AuthorityCode>&,
                                        BufferStringSet& names,
                                        BufferStringSet& defstrs,
                                        bool orthogonalonly=false );
    static const Projection*    getByAuthCode(AuthorityCode);
    static const Projection*    getByName(const char*);
    static BufferString         getInfoText(const char* defstr);
 
protected:
 
    virtual LatLong             toGeographic(const Coord&,
                                             bool wgs84=false) const;
    virtual Coord               fromGeographic(const LatLong&,
                                               bool wgs84=false) const;
 
    BufferString                defstr_;
 
private:
 
    virtual Coord               transformTo(const Projection& target,
                                            LatLong) const;
    virtual LatLong             transformTo(const Projection& target,
                                            Coord) const;
 
    AuthorityCode               authcode_;
    BufferString                usernm_;
 
    friend class ProjectionBasedSystem;
};
 
 
mExpClass(CRS) ProjectionRepos : public ManagedObjectSet<Projection>
{ mODTextTranslationClass(ProjectionRepos);
public:
 
                                ProjectionRepos(const char* key,
                                                uiString desc);
 
    const char*                 key() const             { return key_.buf(); }
    uiString                    description() const     { return desc_; }
 
    bool                        readFromFile(const char* fnm);
 
    const Projection*           getByAuthCode(AuthorityCode) const;
    const Projection*           getByName(const char*) const;
 
    static void                                 addRepos(ProjectionRepos*);
    static const ProjectionRepos*               getRepos(const char* key);
    static const ObjectSet<ProjectionRepos>&    reposSet()
                                                { return reposset_; }
    static void                                 getAuthKeys(BufferStringSet&);
    static void                                 initStdRepos();
 
protected:
 
    BufferString                key_;
    uiString                    desc_;
 
    static ObjectSet<ProjectionRepos>   reposset_;
 
};
 
}; //namespace