/* * geo_names.c * *  This encapsulates all of the value-naming mechanism of  *  libgeotiff.  * *  Written By: Niles Ritter */#include "geotiffio.h"#include "geonames.h"#include "geo_tiffp.h" /* for tag names */static KeyInfo _formatInfo[] =  {   {TYPE_BYTE,    "Byte"},   {TYPE_SHORT,   "Short"},   {TYPE_LONG,    "Long"},   {TYPE_RATIONAL,"Rational"},   {TYPE_ASCII,   "Ascii"},   {TYPE_FLOAT,   "Float"},   {TYPE_DOUBLE,  "Double"},   {TYPE_SBYTE,   "SignedByte"},   {TYPE_SSHORT,  "SignedShort"},   {TYPE_SLONG,  "SignedLong"},   {TYPE_UNKNOWN, "Unknown"},    END_LIST};static KeyInfo _tagInfo[] =  {    {GTIFF_PIXELSCALE,  "ModelPixelScaleTag"},    {GTIFF_TRANSMATRIX, "ModelTransformationTag"},    {GTIFF_TIEPOINTS,   "ModelTiepointTag"},     /* This alias maps the Intergraph symbol to the current tag */    {GTIFF_TRANSMATRIX, "IntergraphMatrixTag"},    END_LIST};static char *FindName(KeyInfo *info,int key){   static char errmsg[80];      while (info->ki_key>=0 && info->ki_key != key) info++;   if (info->ki_key<0)   {	   sprintf(errmsg,"Unknown-%d", key );	   return errmsg;   }   return info->ki_name;}char *GTIFKeyName(geokey_t key){   return FindName( &_keyInfo[0],key);}char *GTIFTypeName(tagtype_t type){   return FindName( &_formatInfo[0],type);}char *GTIFTagName(int tag){   return FindName( &_tagInfo[0],tag);}char *GTIFValueName(geokey_t key, int value){   KeyInfo *info;      switch (key)   {	/* All codes using linear/angular/whatever units */	case GeogLinearUnitsGeoKey: 	case ProjLinearUnitsGeoKey: 	case GeogAngularUnitsGeoKey: 	case GeogAzimuthUnitsGeoKey: 		                      info=_geounitsValue; break;   	/* put other key-dependent lists here */	case GTModelTypeGeoKey:       info=_modeltypeValue; break;	case GTRasterTypeGeoKey:      info=_rastertypeValue; break;	case GeographicTypeGeoKey:    info=_geographicValue; break;	case GeogGeodeticDatumGeoKey: info=_geodeticdatumValue; break;	case GeogEllipsoidGeoKey:     info=_ellipsoidValue; break;	case GeogPrimeMeridianGeoKey: info=_primemeridianValue; break;	case ProjectedCSTypeGeoKey:   info=_pcstypeValue; break;	case ProjectionGeoKey:        info=_projectionValue; break;	case ProjCoordTransGeoKey:    info=_coordtransValue; break;	case VerticalCSTypeGeoKey:    info=_vertcstypeValue; break;	case VerticalDatumGeoKey:     info=_vdatumValue; break;	/* And if all else fails... */   	default:                      info = _csdefaultValue;break;   }      return FindName( info,value);}/*  * Inverse Utilities (name->code)  */static int FindCode(KeyInfo *info,char *key){   while (info->ki_key>=0 && strcmp(info->ki_name,key) ) info++;   if (info->ki_key<0)   {	/* not a registered key; might be generic code */	if (!strncmp(key,"Unknown-",8))	{		int code=-1;		sscanf(key,"Unknown-%d",&code);		return code;	}	else return -1;   }   return info->ki_key;}int GTIFKeyCode(char *key){   return FindCode( &_keyInfo[0],key);}int GTIFTypeCode(char *type){   return FindCode( &_formatInfo[0],type);}int GTIFTagCode(char *tag){   return FindCode( &_tagInfo[0],tag);}/* *  The key must be determined with GTIFKeyCode() before *  the name can be encoded. */int GTIFValueCode(geokey_t key, char *name){   KeyInfo *info;      switch (key)   {	/* All codes using linear/angular/whatever units */	case GeogLinearUnitsGeoKey: 	case ProjLinearUnitsGeoKey: 	case GeogAngularUnitsGeoKey: 	case GeogAzimuthUnitsGeoKey: 		                      info=_geounitsValue; break;   	/* put other key-dependent lists here */	case GTModelTypeGeoKey:       info=_modeltypeValue; break;	case GTRasterTypeGeoKey:      info=_rastertypeValue; break;	case GeographicTypeGeoKey:    info=_geographicValue; break;	case GeogGeodeticDatumGeoKey: info=_geodeticdatumValue; break;	case GeogEllipsoidGeoKey:     info=_ellipsoidValue; break;	case GeogPrimeMeridianGeoKey: info=_primemeridianValue; break;	case ProjectedCSTypeGeoKey:   info=_pcstypeValue; break;	case ProjectionGeoKey:        info=_projectionValue; break;	case ProjCoordTransGeoKey:    info=_coordtransValue; break;	case VerticalCSTypeGeoKey:    info=_vertcstypeValue; break;	case VerticalDatumGeoKey:     info=_vdatumValue; break;	/* And if all else fails... */   	default:                      info = _csdefaultValue;break;   }      return FindCode( info,name);}