how can i create a new shapefile ?

[benabdelkrim]

how can i create a new shapefile ?

[DGuidi]

You need to use the class ShapeFileDataWriter

var writer = new ShapefileDataWriter(filename, GeometryFactory.Default);
var header = new DbaseFileHeader();
// TODO configure attributes table
writer.Header = header
IFeature[] data = ...
writer.Write(data);

[benabdelkrim]

can you give an exemple how to use this ?? IFeature[] data = ...

[DGuidi]

basically you need to have an array of Feature objects, any feature it's composed of a NTS Geometry (a Point, a LineString or a Polygon) and a collection of attributes. Very easy to do when you try, follow the compiler :-) Bear in mind two things:

• you can create a shapefile using only one kind of geometry, so don't mix points with polygons in the same shapefile
• the list of attributes in each feature must match the definition in the header, so if you create an header with a single attribute with integer data and "OID" key (as example), then in the feature attribute you should add only an integer attribute with the same key

[benabdelkrim]

i tried this code but it's not working for me ! any help ? //create a shapeFile ShapefileDataWriter shapefileDataWriter = new ShapefileDataWriter(@"C:\Users\hp\Desktop\shape\test10", GeometryFactory.Default); DbaseFileHeader dbaseFileHeader = new DbaseFileHeader(); dbaseFileHeader.AddColumn("type", 'C',100, 100); shapefileDataWriter.Header = dbaseFileHeader; //add a point into shapefile IEnumerable result1 = null;
int counter = result.ToList().Count(); GeometryFactory geometryFactory = new GeometryFactory(); Coordinate coordinate = new Coordinate(2.2, 4.6); NetTopologySuite.Geometries.Point point = geometryFactory.CreatePoint(coordinate); Feature feature1 = new Feature(); feature1.Geometry = point; feature1.BoundingBox = new Envelope(); feature1.Attributes.Add("id", null); //feature1.Attributes.Add("x_coord", feature1); result1.ToList().Add(feature1); shapefileDataWriter.Write(result1);

[airbreather]

result1.ToList().Add(feature1);

You're adding feature1 to a different list than result1.

[DGuidi]

why not simply

List result1 = new List<IFeature>()
...
result1.Add(feature1);

?

and note that because you're adding in feature1 a field using key "id", you should use "id" (instead of "type") also in the header definition

[DGuidi]

actually it's more easier that I said earlier, take a look at this sample code from the tests.

You can obtain a valid header using this static method AFTER that you created the features you want to write

ShapefileDataWriter.GetHeader(features[0], features.Length)

so basically

//add a point into shapefile
var result1 = new List<Feature>();
GeometryFactory geometryFactory = GeometryFactory.Default
Coordinate coordinate = new Coordinate(2.2, 4.6);
NetTopologySuite.Geometries.Point point = geometryFactory.CreatePoint(coordinate);
Feature feature1 = new Feature();
feature1.Geometry = point;
// feature1.BoundingBox = new Envelope(); // NOT NEEDED
feature1.Attributes.Add("id", null);
result1.Add(feature1);

ShapefileDataWriter shapefileDataWriter = new ShapefileDataWriter(@"C:\Users\hp\Desktop\shape\test10", GeometryFactory.Default);
shapefileDataWriter.Header = ShapefileDataWriter.GetHeader(result1[0], result1.Length);
shapefileDataWriter.Write(result1);

hope this helps

[benabdelkrim]

thank you @DGuidi for your help now it is working for me