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IMAGING-314-1 Logic improvement, print additional information #178

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Oct 19, 2021
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IMAGING-314-1 Logic improvement, print additional information #178

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85 changes: 84 additions & 1 deletion src/test/java/org/apache/commons/imaging/examples/tiff/ReadTagsAndImages.java
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Original file line number Diff line number Diff line change
Expand Up @@ -275,7 +275,7 @@ private static void summarizeGeoTiffTags(PrintStream ps, TiffDirectory directory
ps.format("%nContent Type: %s", contentTypeString);
String gdalNoDataString[] = directory.getFieldValue(
GdalLibraryTagConstants.EXIF_TAG_GDAL_NO_DATA, false);
if (gdalNoDataString != null || gdalNoDataString.length > 0) {
if (gdalNoDataString != null && gdalNoDataString.length > 0) {
ps.format(" GDAL No-Data value: %s", gdalNoDataString[0]);
}
ps.format("%n");
Expand Down Expand Up @@ -418,6 +418,63 @@ private static void summarizeGeoTiffTags(PrintStream ps, TiffDirectory directory
}
}

/**
* Provides specifications for Coordinate Transformation Codes as defined
* in Appendix 6.3.3.3 "Coordinate Transformation Codes" of the
* original GeoTiff specification (Ritter, 1995).
*/
enum CoordinateTransformationCode {
TransverseMercator( 1),
TransvMercator_Modified_Alaska( 2),
ObliqueMercator( 3),
ObliqueMercator_Laborde( 4),
ObliqueMercator_Rosenmund( 5),
ObliqueMercator_Spherical( 6),
Mercator( 7),
LambertConfConic_2SP( 8),
LambertConfConic_Helmert( 9),
LambertAzimEqualArea( 10),
AlbersEqualArea( 11),
AzimuthalEquidistant( 12),
EquidistantConic( 13),
Stereographic( 14),
PolarStereographic( 15),
ObliqueStereographic( 16),
Equirectangular( 17),
CassiniSoldner( 18),
Gnomonic( 19),
MillerCylindrical( 20),
Orthographic( 21),
Polyconic( 22),
Robinson( 23),
Sinusoidal( 24),
VanDerGrinten( 25),
NewZealandMapGrid( 26),
TransvMercator_SouthOriented( 27);

int key;

CoordinateTransformationCode(int key){
this.key = key;
}

/**
* Gets the enumeration value associated with the specified
* key if any.
* @param key a positive integer
* @return if the key is matched, a value enumeration value;
* otherwise, a null.
*/
static CoordinateTransformationCode getValueForKey(int key){
for(CoordinateTransformationCode v: values()){
if(v.key==key){
return v;
}
}
return null;
}
}

/**
* Interprets elements from one row of the GeoKey table, returning a
* descriptive string where possible. The GeoTIFF specification is
Expand Down Expand Up @@ -500,6 +557,18 @@ private static String interpretElements(
return "User-Defined Projection";
}
break;
case ProjectionGeoKey:
if(valueOrPosition==32767){
return "User-Defined";
}
break;
case ProjCoordTransGeoKey:
CoordinateTransformationCode code =
CoordinateTransformationCode.getValueForKey(valueOrPosition);
if(code!=null){
return code.name();
}
break;
case ProjLinearUnitsGeoKey:
switch (valueOrPosition) {
case 9001:
Expand All @@ -511,6 +580,20 @@ private static String interpretElements(
default:
break;
}
break;
case ProjStdParallel1GeoKey:
case ProjStdParallel2GeoKey:
case ProjNatOriginLongGeoKey:
case ProjFalseEastingGeoKey:
case ProjFalseNorthingGeoKey:
case ProjFalseOriginLongGeoKey:
case ProjFalseOriginLatGeoKey:
case ProjFalseOriginEastingGeoKey:
case ProjFalseOriginNorthingGeoKey:
case ProjCenterLongGeoKey:
case ProjCenterLatGeoKey:
return String.format("%13.4f", doubleParameters[valueOrPosition]);

default:
break;
}
Expand Down