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Re: [Geotools-gt2-users] Exporting to shape file with projection coordinates
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From: suri <sur...@gm...> - 2014-10-15 04:53:57
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I little confused with the coordinates . Any how i got the answer by creating polygons with latllong(georeferenced) values instead of creating with XY (original) values. thanks. /*- – - – - – – - – – - – – - – – - – – - – – - – – - – – - – – - – – - - Please consider your environmental responsibility. Before printing this e-mail message, ask yourself whether you really need a hard copy. Life is what happens to you, while you're busy making other plans We do not inherit the earth from our ancestors; we borrow it from our children. Leave them a living planet reduce your carbon foot print. ------------------------------------------------------------ --------------------------------*/ yours suri chinna On Tue, Oct 14, 2014 at 9:56 PM, Jody Garnett <jod...@gm...> wrote: > I am not sure I understand where you are stuck? What do you mean by "including > geodetic coordinates" ? > > Jody Garnett > > On Mon, Oct 13, 2014 at 10:57 PM, suri <sur...@gm...> wrote: > >> >> I have collections of polygon features. Each point in a polygon has local >> cooridantes (x y values) and geodetic Coordinates (latitude and longitude >> in decimal degree computed externaly) i can export the shape file(vector) >> with xy values using geotools. >> >> How can i export the data by including geodetic coordinates? >> >> >> Point - X Y values - correspoinding latitude and longitude >> >> Polygon points have coordinates with (x y values) i have find the latlong >> values for each point in the shapefile externally by using rubbersheeting >> method given in >> http://www.corrmap.com/features/rubber-sheeting_transformation.php now i >> need to project the lat long values into the shapefile along with x y >> values of the points. >> >> >> Polygons [ p1,p2,p3,p4........soon] >> p1 - (x ,y) already in the shapefile (lat, long) computed externally. >> >> id-->*******x********y***************lon*********lat >> >> 79-->(8912.811,1481.9799):(80.205185,13.336138) >> >> 80-->(8912.811,1481.9766):(80.205185,13.336108) >> >> 93-->(8912.656,1481.9835):(80.2038,13.336171) >> >> 140-->(8912.8125,1482.0161):(80.20521,13.336465) >> >> >> My code for exporting shape file with x and y coordinates and i need to >> include projection (lat long). >> >> /** >> * Writes the Shapes in the featureList into the given File >> * >> * @param theFile Reference to the File >> * @param featureList The list of features to be written >> * >> * @return TRUE if successfully written; Else FALSE >> */ >> public boolean writeShape(File theFile, List featureList) throws >> Exception >> { >> ShapefileDataStoreFactory dSFactory = new >> ShapefileDataStoreFactory(); >> >> Map params = new HashMap(); >> params.put("url", theFile.toURI().toURL()); >> params.put("create spatial index", Boolean.TRUE); >> >> ShapefileDataStore newDataStore = >> (ShapefileDataStore) >> dSFactory.createNewDataStore(params); >> >> newDataStore.createSchema(featureBuilder.getFeatureType()); >> newDataStore.forceSchemaCRS(DefaultGeographicCRS.WGS84); >> >> String typeName = newDataStore.getTypeNames()[0]; >> SimpleFeatureSource featureSource = >> >> newDataStore.getFeatureSource(typeName); >> >> boolean success = false; >> if (featureSource instanceof SimpleFeatureStore) >> { >> SimpleFeatureStore featureStore = >> (SimpleFeatureStore)featureSource; >> >> SimpleFeatureCollection collection = >> new >> ListFeatureCollection(featureBuilder.getFeatureType(), >> featureList); >> >> Transaction transaction = new DefaultTransaction("create"); >> featureStore.setTransaction(transaction); >> >> try >> { >> featureStore.addFeatures(collection); >> transaction.commit(); >> success = true; >> } >> catch (Exception exp) >> { >> if (DEBUG) exp.printStackTrace(); >> transaction.rollback(); >> success = false; >> } >> finally >> { >> transaction.close(); >> } >> } >> >> if (success) showMessage(sCreated); >> return success; >> } >> >> private SimpleFeatureBuilder createFeatureBuilder() >> { >> SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder(); >> builder.setCRS(DefaultGeographicCRS.WGS84); >> builder.setName(plotName); >> >> builder.add(sPolygon, Polygon.class); >> builder.length(32).add(plotName, String.class); >> builder.length(32).add(sArea, String.class); >> >> final SimpleFeatureType featureType = builder.buildFeatureType(); >> return new SimpleFeatureBuilder(featureType); >> } >> >> public boolean addPolygonFeature(List featureList, Point3D[] >> thePoints, >> String polyId, float area) throws >> Exception >> { >> Polygon aPoly = createPolygon(thePoints); >> >> if (aPoly == null) >> { >> StringBuffer buf = new StringBuffer(); >> buf.append(WError1); >> buf.append(polyId); >> buf.append(WError2); >> String error = buf.toString(); >> >> int opt = GUIBase.showConfirmDialog(error, "Confirm", GUI_YN); >> return (opt == GUIBase.GUI_YES); >> } >> >> SimpleFeature feature = featureBuilder.buildFeature(null); >> feature.setAttribute(plotName, polyId); >> feature.setAttribute(sPolygon, aPoly); >> feature.setAttribute(sArea, area); >> featureList.add(feature); >> return true; >> } >> >> /** >> * Creates a polygon feature from Array of FMBPoints >> * >> * @param thePoints Array of Point3Ds >> * >> * @return Reference to the Polygon object >> */ >> public static Polygon createPolygon(Point3D[] thePoints) >> { >> int count = (thePoints == null) ? 0 : thePoints.length; >> if (count < 1) return null; >> >> // Store Coordinates of polygon as a LINESTRING. >> StringBuffer buffer = new StringBuffer(); >> buffer.append("POLYGON(("); >> >> for (int i=0; i<count; i++) >> { >> buffer.append(thePoints[i].x); >> buffer.append(SPACE); >> buffer.append(thePoints[i].y); >> buffer.append(COMMA); >> } >> >> String lineString = buffer.toString(); >> lineString = lineString.substring(0, lineString.length()-1) + >> "))"; >> if (DEBUG) System.out.println(lineString); >> >> try >> { >> // Creating the Geometry (Polygon) >> return (Polygon) wktReader.read(lineString); >> } >> catch (Exception excep) { } >> >> return null; >> } >> >> >> >> /*- – - – - – – - – – - – – - – – - – – - – – - – – - – – - – – - – – - - >> >> Please consider your environmental responsibility. >> Before printing this e-mail message, ask yourself whether you really need >> a hard copy. >> >> Life is what happens to you, while you're busy making other plans >> >> We do not inherit the earth from our ancestors; we borrow it from our >> children. >> Leave them a living planet reduce your carbon foot print. >> ------------------------------------------------------------ >> --------------------------------*/ >> >> >> >> >> >> >> yours suri chinna >> >> >> ------------------------------------------------------------------------------ >> Comprehensive Server Monitoring with Site24x7. >> Monitor 10 servers for $9/Month. >> Get alerted through email, SMS, voice calls or mobile push notifications. >> Take corrective actions from your mobile device. >> http://p.sf.net/sfu/Zoho >> _______________________________________________ >> GeoTools-GT2-Users mailing list >> Geo...@li... >> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users >> >> > |
