2021-06-17 21:58:25 +02:00
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#ifndef PRJFILE_H
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#define PRJFILE_H
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#include <QFile>
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#include "projection.h"
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class Datum;
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class Ellipsoid;
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class PrimeMeridian;
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class PRJFile
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{
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public:
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PRJFile(const QString &fileName);
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2021-06-22 07:42:48 +02:00
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const Projection &projection() const {return _projection;}
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const QString &errorString() const {return _errorString;}
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private:
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enum Token {
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START, /* Initial value */
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EOI, /* End of File */
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ERROR, /* Parse error */
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NUMBER, /* Real number */
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STRING, /* String */
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LBRK, /* '[' */
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RBRK, /* ']' */
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2021-06-22 07:42:48 +02:00
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COMMA, /* ',' */
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2021-06-17 21:58:25 +02:00
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/* Keywords */
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2021-06-21 23:35:31 +02:00
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COMPD_CS, PROJCS, PROJECTION, GEOGCS, DATUM, SPHEROID, PRIMEM, UNIT,
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AUTHORITY, AXIS, TOWGS84, PARAMETER, NORTH, SOUTH, EAST, WEST, UP, DOWN,
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OTHER, VERT_CS, VERT_DATUM, GEOCCS, FITTED_CS, LOCAL_CS
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2021-06-17 21:58:25 +02:00
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};
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struct CTX {
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CTX(const QString &fileName) : file(fileName), token(START) {}
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QFile file;
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Token token;
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QString string;
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double number;
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};
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Token keyword(CTX &ctx);
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int getChar(CTX &ctx);
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void error(CTX &ctx);
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void nextToken(CTX &ctx);
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void compare(CTX &ctx, Token token);
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void CS(CTX &ctx);
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void horizontalCS(CTX &ctx);
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void verticalCS(CTX &ctx);
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void geographicCS(CTX &ctx, GCS *gcs);
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void projectedCS(CTX &ctx, PCS *pcs);
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void compdCS(CTX &ctx);
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void projection(CTX &ctx, Projection::Method *method);
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void parameter(CTX &ctx, Projection::Setup *setup);
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void datum(CTX &ctx, Datum *dtm, int *epsg);
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void verticalDatum(CTX &ctx);
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void unit(CTX &ctx, double *val, int *epsg);
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void angularUnit(CTX &ctx, AngularUnits *au, int *epsg);
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void primeMeridian(CTX &ctx, PrimeMeridian *pm, int *epsg);
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void linearUnit(CTX &ctx, LinearUnits *lu);
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void spheroid(CTX &ctx, Ellipsoid *el);
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void authority(CTX &ctx, int *epsg);
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void toWGS84(CTX &ctx, double *dx, double *dy, double *dz, double *rx,
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double *ry, double *rz, double *ds);
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void twinAxis(CTX &ctx);
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void axis(CTX &ctx);
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void axisType(CTX &ctx);
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void optAuthority(CTX &ctx, int *epsg);
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void optDatum(CTX &ctx, double *dx, double *dy, double *dz, double *rx,
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double *ry, double *rz, double *ds, int *epsg);
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void optDatum2(CTX &ctx, double *dx, double *dy, double *dz, double *rx,
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double *ry, double *rz, double *ds, int *epsg);
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void optGeographicCS(CTX &ctx, int *epsg);
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void optGeographicCS2(CTX &ctx, int *epsg);
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void optProjectedCS(CTX &ctx, int *epsg);
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void optProjectedCS2(CTX &ctx, int *epsg);
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void optCS(CTX &ctx, int *epsg);
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void optVerticalCS(CTX &ctx, int *epsg);
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void optVerticalCS2(CTX &ctx, int *epsg);
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Projection _projection;
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QString _errorString;
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};
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#endif // PRJFILE_H
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