记录一下如何创建DirectedGraph,便于以后查找使用
static ShapefileDataStore sds= null; static DirectedGraph graph = null; ShapefileDataStoreFactory dataStoreFactory = new ShapefileDataStoreFactory(); try { sds = (ShapefileDataStore)dataStoreFactory.createDataStore(new File("E://桌面//route_LI.shp").toURI().toURL()); } catch (IOException e) { e.printStackTrace(); } //设置编码 Charset charset = Charset.forName("GBK"); sds.setCharset(charset); String typeName = null; try { typeName = sds.getTypeNames()[0]; } catch (IOException e) { e.printStackTrace(); } FeatureSource featureSource = null; try { featureSource = sds.getFeatureSource (typeName); } catch (IOException e) { e.printStackTrace(); } SimpleFeatureCollection fCollection =null; try { fCollection = (SimpleFeatureCollection) featureSource.getFeatures(); } catch (IOException e1) { e1.printStackTrace(); } DirectedLineStringGraphGenerator lineStringGen = new DirectedLineStringGraphGenerator(); FeatureGraphGenerator featureGen = new FeatureGraphGenerator(lineStringGen); featureGen.setGraphBuilder(new BasicDirectedLineGraphBuilder()); SimpleFeatureIterator iterator = fCollection.features(); try { while (iterator.hasNext()) { SimpleFeature feature = iterator.next(); featureGen.add(feature); } } finally { iterator.close(); } sds.dispose(); graph = (DirectedGraph)featureGen.getGraph();