Remove deprecated units from QGis

- DecimalDegrees
- DegreesMinutesSeconds
- DegreesDecimalMinutes

all these were replaced long ago by QGis::Degrees

doc/api_break.dox

@@ -50,6 +50,8 @@ This page tries to maintain a list with incompatible changes that happened in pr
 <li>permissiveToDouble() and permissiveToInt() where moved out of the QGis class and renamed to qgsPermissiveToDouble() and
 qgsPermissiveToInt()</li>
 <li>The constants DEFAULT_IDENTIFY_RADIUS and MINIMUM_POINT_SIZE were removed</li>
+<li>QGis::DecimalDegrees, DegreesMinutesSeconds and DegreesDecimalMinutes have been removed, and have all been replaced
+with the general Degrees unit</li>
 </ul>
 
 \subsection qgis_api_break_3_0_QgsAuthConfigUriEdit QgsAuthConfigUriEdit

python/core/qgis.sip

@@ -151,13 +151,7 @@ class Qgis
       Kilometers, /*!< kilometers */
       Yards, /*!< imperial yards */
       Miles, /*!< terrestial miles */
-
       UnknownUnit, /*!< unknown distance unit */
-
-      // for [1.4;1.8] api compatibility
-      DecimalDegrees,         // was 2
-      DegreesMinutesSeconds,  // was 4
-      DegreesDecimalMinutes,  // was 5
     };
 
     //! Provides the canonical name of the type value

src/analysis/vector/qgstransectsample.cpp

@@ -181,7 +181,7 @@ int QgsTransectSample::createSample( QProgressDialog* pd )
     double minDistanceLayerUnits = minDistance;
     //if minDistance is in meters and the data in degrees, we need to apply a rough conversion for the buffer distance
     double bufferDist = bufferDistance( minDistance );
-    if ( mMinDistanceUnits == Meters && mStrataLayer->crs().mapUnits() == Qgis::DecimalDegrees )
+    if ( mMinDistanceUnits == Meters && mStrataLayer->crs().mapUnits() == Qgis::Degrees )
     {
       minDistanceLayerUnits = minDistance / 111319.9;
     }
@@ -710,7 +710,7 @@ double QgsTransectSample::bufferDistance( double minDistanceFromAttribute ) cons
     bufferDist = mBaselineBufferDistance;
   }
 
-  if ( mMinDistanceUnits == Meters && mStrataLayer->crs().mapUnits() == Qgis::DecimalDegrees )
+  if ( mMinDistanceUnits == Meters && mStrataLayer->crs().mapUnits() == Qgis::Degrees )
   {
     bufferDist /= 111319.9;
   }

src/core/qgis.h

@@ -165,13 +165,7 @@ class CORE_EXPORT Qgis
       Kilometers = 8, /*!< kilometers */
       Yards = 9, /*!< imperial yards */
       Miles = 10, /*!< terrestial miles */
-
       UnknownUnit = 3, /*!< unknown distance unit */
-
-      // for [1.4;1.8] api compatibility
-      DecimalDegrees = 2,         // was 2
-      DegreesMinutesSeconds = 2,  // was 4
-      DegreesDecimalMinutes = 2,  // was 5
     };
 
     //! Provides the canonical name of the type value

src/core/qgsunittypes.cpp

@@ -217,12 +217,6 @@ double QgsUnitTypes::fromUnitToUnitFactor( Qgis::UnitType fromUnit, Qgis::UnitTy
 #define YARDS_TO_METER 0.9144
 #define YARDS_TO_FEET 3.0
 #define MILES_TO_METER 1609.344
-  // Unify degree units
-  // remove for QGIS 3.0, as extra degree types will be removed
-  if ( fromUnit == Qgis::DecimalDegrees || fromUnit == Qgis::DegreesMinutesSeconds || fromUnit == Qgis::DegreesDecimalMinutes )
-    fromUnit = Qgis::Degrees;
-  if ( toUnit == Qgis::DecimalDegrees || toUnit == Qgis::DegreesMinutesSeconds || toUnit == Qgis::DegreesDecimalMinutes )
-    toUnit = Qgis::Degrees;
 
   // Calculate the conversion factor between the specified units
   switch ( fromUnit )