reorganize imports

add List Unique Values tool


git-svn-id: http://sextante.googlecode.com/svn/trunk/soft/bindings/qgis-plugin@310 881b9c09-3ef8-f3c2-ec3d-21d735c97f4d

Author: alexander.bruy@gmail.com

src/sextante/ftools/FToolsAlgorithmProvider.py

@@ -1,49 +1,67 @@
-from sextante.core.AlgorithmProvider import AlgorithmProvider
-
 import os
+
 from PyQt4 import QtGui
-from sextante.ftools.Centroids import Centroids
+
+from sextante.core.AlgorithmProvider import AlgorithmProvider
+
+# analysis tools
+from sextante.ftools.SumLines import SumLines
+from sextante.ftools.MeanCoords import MeanCoords
+from sextante.ftools.UniqueValues import UniqueValues
+from sextante.ftools.BasicStatistics import BasicStatistics
+from sextante.ftools.PointsInPolygon import PointsInPolygon
+from sextante.ftools.LinesIntersection import LinesIntersection
+from sextante.ftools.NearestNeighbourAnalysis import NearestNeighbourAnalysis
+
+# data management tools
+
+# geometry tools
 from sextante.ftools.Delaunay import Delaunay
-from sextante.ftools.SimplifyGeometries import SimplifyGeometries
-from sextante.ftools.VoronoiPolygons import VoronoiPolygons
-from sextante.ftools.ExportGeometryInfo import ExportGeometryInfo
+from sextante.ftools.Centroids import Centroids
 from sextante.ftools.ExtractNodes import ExtractNodes
+from sextante.ftools.VoronoiPolygons import VoronoiPolygons
 from sextante.ftools.LinesToPolygons import LinesToPolygons
 from sextante.ftools.PolygonsToLines import PolygonsToLines
+from sextante.ftools.SimplifyGeometries import SimplifyGeometries
+from sextante.ftools.ExportGeometryInfo import ExportGeometryInfo
+from sextante.ftools.MultipartToSingleparts import MultipartToSingleparts
 from sextante.ftools.SinglePartsToMultiparts import SinglePartsToMultiparts
-from sextante.ftools.BasicStatistics import BasicStatistics
-from sextante.ftools.PointsInPolygon import PointsInPolygon
-from sextante.ftools.SumLines import SumLines
-from sextante.ftools.MeanCoords import MeanCoords
-from sextante.ftools.NearestNeighbourAnalysis import NearestNeighbourAnalysis
-from sextante.ftools.LinesIntersection import LinesIntersection
-from sextante.ftools.ConvexHull import ConvexHull
-from sextante.ftools.FixedDistanceBuffer import FixedDistanceBuffer
-from sextante.ftools.VariableDistanceBuffer import VariableDistanceBuffer
+
+# geoprocessing tools
+from sextante.ftools.Clip import Clip
+from sextante.ftools.Union import Union
 from sextante.ftools.Dissolve import Dissolve
+from sextante.ftools.ConvexHull import ConvexHull
 from sextante.ftools.Difference import Difference
 from sextante.ftools.Intersection import Intersection
-from sextante.ftools.Union import Union
-from sextante.ftools.Clip import Clip
+from sextante.ftools.FixedDistanceBuffer import FixedDistanceBuffer
+from sextante.ftools.VariableDistanceBuffer import VariableDistanceBuffer
+
+# research tools
 from sextante.ftools.ExtentFromLayer import ExtentFromLayer
 from sextante.ftools.RandomSelection import RandomSelection
 from sextante.ftools.SelectByLocation import SelectByLocation
 from sextante.ftools.RandomSelectionWithinSubsets import RandomSelectionWithinSubsets
-from sextante.ftools.MultipartToSingleparts import MultipartTosingleparts
 
 class FToolsAlgorithmProvider(AlgorithmProvider):
 
     def __init__(self):
         AlgorithmProvider.__init__(self)
-        self.alglist = [SinglePartsToMultiparts(), PolygonsToLines(),
-                     LinesToPolygons(), ExportGeometryInfo(), ExtractNodes(),
-                     Centroids(), SimplifyGeometries(), Delaunay(), VoronoiPolygons(),
-                     SumLines(), BasicStatistics(), PointsInPolygon(),
-                     NearestNeighbourAnalysis(), MeanCoords(), LinesIntersection(),
-                     ConvexHull(), FixedDistanceBuffer(), VariableDistanceBuffer(),
-                     Dissolve(), Difference(), Intersection(), Union(), Clip(), ExtentFromLayer(),
-                     RandomSelection(), RandomSelectionWithinSubsets(), SelectByLocation(),
-                     MultipartTosingleparts()]
+        self.alglist = [SumLines(), PointsInPolygon(), BasicStatistics(),
+                        NearestNeighbourAnalysis(), MeanCoords(), LinesIntersection(),
+                        UniqueValues(),
+                        # data management
+                        # geometry
+                        ExportGeometryInfo(), Centroids(), Delaunay(), VoronoiPolygons(),
+                        SimplifyGeometries(), MultipartToSingleparts(), SinglePartsToMultiparts(),
+                        PolygonsToLines(), LinesToPolygons(), ExtractNodes(),
+                        # geoprocessing
+                        ConvexHull(), FixedDistanceBuffer(), VariableDistanceBuffer(),
+                        Dissolve(), Difference(), Intersection(), Union(), Clip(),
+                        # research
+                        ExtentFromLayer(), RandomSelection(), RandomSelectionWithinSubsets(),
+                        SelectByLocation()
+                       ]
 
     def getDescription(self):
         return "fTools (Vector analysis)"
@@ -57,6 +75,5 @@ def getIcon(self):
     def _loadAlgorithms(self):
         self.algs = self.alglist
 
-
     def getSupportedOutputTableExtensions(self):
         return ["csv"]

src/sextante/ftools/MultipartToSingleparts.py

@@ -9,7 +9,7 @@
 from sextante.core.GeoAlgorithmExecutionException import GeoAlgorithmExecutionException
 from sextante.outputs.OutputVector import OutputVector
 
-class MultipartTosingleparts(GeoAlgorithm):
+class MultipartToSingleparts(GeoAlgorithm):
 
     INPUT = "INPUT"
     OUTPUT = "OUTPUT"

src/sextante/ftools/UniqueValues.py

@@ -0,0 +1,53 @@
+import os.path
+
+from PyQt4 import QtGui
+
+from sextante.core.GeoAlgorithm import GeoAlgorithm
+from sextante.core.QGisLayers import QGisLayers
+from sextante.core.GeoAlgorithmExecutionException import GeoAlgorithmExecutionException
+
+from sextante.parameters.ParameterVector import ParameterVector
+from sextante.parameters.ParameterTableField import ParameterTableField
+
+from sextante.outputs.OutputHTML import OutputHTML
+from sextante.outputs.OutputNumber import OutputNumber
+
+from sextante.ftools import ftools_utils
+
+class UniqueValues(GeoAlgorithm):
+
+    INPUT_LAYER = "INPUT_LAYER"
+    FIELD_NAME = "FIELD_NAME"
+    TOTAL_VALUES = "TOTAL_VALUES"
+    OUTPUT = "OUTPUT"
+
+    def getIcon(self):
+        return QtGui.QIcon(os.path.dirname(__file__) + "/icons/unique.png")
+
+    def defineCharacteristics(self):
+        self.name = "List unique values"
+        self.group = "Analysis tools"
+        self.addParameter(ParameterVector(UniqueValues.INPUT_LAYER, "Input layer", ParameterVector.VECTOR_TYPE_ANY))
+        self.addParameter(ParameterTableField(UniqueValues.FIELD_NAME, "Targer field", UniqueValues.INPUT_LAYER, ParameterTableField.DATA_TYPE_ANY))
+        self.addOutput(OutputHTML(UniqueValues.OUTPUT, "Unique values"))
+        self.addOutput(OutputNumber(UniqueValues.TOTAL_VALUES, "Total unique values"))
+
+    def processAlgorithm(self, progress):
+        layer = QGisLayers.getObjectFromUri(self.getParameterValue(UniqueValues.INPUT_LAYER))
+        fieldName = self.getParameterValue(UniqueValues.FIELD_NAME)
+
+        outputFile = self.getOutputValue(UniqueValues.OUTPUT)
+
+        values = layer.uniqueValues(layer.fieldNameIndex(fieldName))
+        self.createHTML(outputFile, values)
+        self.setOutputValue(UniqueValues.TOTAL_VALUES, len(values))
+
+    def createHTML(self, outputFile, algData):
+        f = open(outputFile, "w")
+        f.write("<p>Total unique values: " + str(len(algData)) + "</p>")
+        f.write("<p>Unique values:</p>")
+        f.write("<ul>")
+        for s in algData:
+            f.write("<li>" + unicode(s.toString()) + "</li>")
+        f.write("</ul>")
+        f.close()