Merge pull request #2893 from NaturalGIS/processing_gdalwarp_extent

processing: add extent parameter to gdal_warp

Author: volaya

python/plugins/processing/algs/gdal/warp.py

@@ -31,6 +31,7 @@
 
 from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
 from processing.core.parameters import ParameterRaster
+from processing.core.parameters import ParameterExtent
 from processing.core.parameters import ParameterSelection
 from processing.core.parameters import ParameterCrs
 from processing.core.parameters import ParameterNumber
@@ -64,6 +65,7 @@ class warp(GdalAlgorithm):
     BIGTIFFTYPE = ['', 'YES', 'NO', 'IF_NEEDED', 'IF_SAFER']
     COMPRESSTYPE = ['NONE', 'JPEG', 'LZW', 'PACKBITS', 'DEFLATE']
     TFW = 'TFW'
+    RAST_EXT = 'RAST_EXT'
 
     def getIcon(self):
         return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'warp.png'))
@@ -84,6 +86,7 @@ def defineCharacteristics(self):
                                           0.0, None, 0.0))
         self.addParameter(ParameterSelection(self.METHOD,
                                              self.tr('Resampling method'), self.METHOD_OPTIONS))
+        self.addParameter(ParameterExtent(self.RAST_EXT, self.tr('Raster extent')))
 
         params = []
         params.append(ParameterSelection(self.RTYPE,
@@ -125,7 +128,8 @@ def getConsoleCommands(self):
         compress = self.COMPRESSTYPE[self.getParameterValue(self.COMPRESS)]
         bigtiff = self.BIGTIFFTYPE[self.getParameterValue(self.BIGTIFF)]
         tfw = unicode(self.getParameterValue(self.TFW))
-
+        rastext = unicode(self.getParameterValue(self.RAST_EXT))
+        
         arguments = []
         arguments.append('-ot')
         arguments.append(self.TYPE[self.getParameterValue(self.RTYPE)])
@@ -149,6 +153,18 @@ def getConsoleCommands(self):
             arguments.append(unicode(self.getParameterValue(self.TR)))
             arguments.append(unicode(self.getParameterValue(self.TR)))
         extra = unicode(self.getParameterValue(self.EXTRA))
+        regionCoords = rastext.split(',')
+        try:
+            rastext = []
+            rastext.append('-te')
+            rastext.append(regionCoords[0])
+            rastext.append(regionCoords[2])
+            rastext.append(regionCoords[1])
+            rastext.append(regionCoords[3])
+        except IndexError:
+            rastext = []
+        if rastext:
+            arguments.extend(rastext)
         if len(extra) > 0:
             arguments.append(extra)
         if GdalUtils.getFormatShortNameFromFilename(out) == "GTiff":