/// <summary>
/// Load media from stream.
/// </summary>
/// <param name="stream">
/// A <see cref="Stream"/> where the media data is stored.
/// </param>
/// <param name="criteria">
/// A <see cref="MediaCodecCriteria"/> that specify parameters for loading an media stream.
/// </param>
/// <returns>
/// An <see cref="Image"/> holding the media data.
/// </returns>
/// <exception cref="ArgumentNullException">
/// Exception thrown if <paramref name="stream"/> or <paramref name="criteria"/> is null.
/// </exception>
public Image Load(Stream stream, ImageCodecCriteria criteria)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
if (criteria == null)
{
throw new ArgumentNullException("criteria");
}
const int BufferBlockSize = 4096;
byte[] buffer = new byte[stream.Length];
int bufferOffset = 0, bytesRed;
// Read the stream content
while ((bytesRed = stream.Read(buffer, bufferOffset, BufferBlockSize)) > 0)
{
bufferOffset += bytesRed;
}
GCHandle bufferHandle = GCHandle.Alloc(buffer, GCHandleType.Pinned);
try {
Gdal.FileFromMemBuffer("/vsimem/GdalLoad", buffer.Length, bufferHandle.AddrOfPinnedObject());
using (Dataset dataset = Gdal.Open("/vsimem/GdalLoad", Access.GA_ReadOnly)) {
return(Load(dataset, criteria));
}
} finally {
// Release virtual path
Gdal.Unlink("/vsimem/GdalLoad");
bufferHandle.Free();
}
}
public static void Main(string[] args)
{
if (args.Length != 1)
{
usage();
}
byte[] imageBuffer;
using (FileStream fs = new FileStream(args[0], FileMode.Open, FileAccess.Read))
{
using (BinaryReader br = new BinaryReader(fs))
{
long numBytes = new FileInfo(args[0]).Length;
imageBuffer = br.ReadBytes((int)numBytes);
br.Close();
fs.Close();
}
}
Gdal.AllRegister();
string memFilename = "/vsimem/inmemfile";
try
{
Gdal.FileFromMemBuffer(memFilename, imageBuffer);
Dataset ds = Gdal.Open(memFilename, Access.GA_ReadOnly);
Console.WriteLine("Raster dataset parameters:");
Console.WriteLine(" RasterCount: " + ds.RasterCount);
Console.WriteLine(" RasterSize (" + ds.RasterXSize + "," + ds.RasterYSize + ")");
Driver drv = Gdal.GetDriverByName("GTiff");
if (drv == null)
{
Console.WriteLine("Can't get driver.");
System.Environment.Exit(-1);
}
drv.CreateCopy("sample.tif", ds, 0, null, null, null);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
Gdal.Unlink(memFilename);
}
}
/// <summary>
/// Create a raster.
/// </summary>
/// <param name="leaveopen"></param>
public override void Create(bool leaveopen = false)
{
if (GISFileInfo.Exists)
{
Gdal.Unlink(GISFileInfo.FullName);
}
CreateDS(driver, GISFileInfo, Extent, Proj, Datatype);
RefreshFileInfo();
if (!leaveopen)
{
UnloadDS();
}
}
protected override void SolveInstance(IGH_DataAccess DA)
{
List <Curve> boundary = new List <Curve>();
DA.GetDataList <Curve>(0, boundary);
string IMG_file = string.Empty;
DA.GetData <string>(1, ref IMG_file);
RESTful.GdalConfiguration.ConfigureGdal();
OSGeo.GDAL.Gdal.AllRegister();
Dataset datasource = Gdal.Open(IMG_file, Access.GA_ReadOnly);
OSGeo.GDAL.Driver drv = datasource.GetDriver();
if (datasource == null)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Error, "The vector datasource was unreadable by this component. It may not a valid file type for this component or otherwise null/empty.");
return;
}
///Get info about image
string srcInfo = string.Empty;
List <string> infoOptions = new List <string> {
"-stats"
};
srcInfo = Gdal.GDALInfo(datasource, new GDALInfoOptions(infoOptions.ToArray()));
///Get the spatial reference of the input raster file and set to WGS84 if not known
///Set up transform from source to WGS84
OSGeo.OSR.SpatialReference sr = new SpatialReference(Osr.SRS_WKT_WGS84);
if (datasource.GetProjection() == null)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Coordinate Reference System (CRS) is missing. CRS set automatically set to WGS84.");
}
else
{
sr = new SpatialReference(datasource.GetProjection());
if (sr.Validate() != 0)
{
///Check if SRS needs to be converted from ESRI format to WKT to avoid error:
///"No translation for Lambert_Conformal_Conic to PROJ.4 format is known."
///https://gis.stackexchange.com/questions/128266/qgis-error-6-no-translation-for-lambert-conformal-conic-to-proj-4-format-is-kn
SpatialReference srEsri = sr;
srEsri.MorphFromESRI();
string projEsri = string.Empty;
srEsri.ExportToWkt(out projEsri);
///If no SRS exists, check Ground Control Points SRS
SpatialReference srGCP = new SpatialReference(datasource.GetGCPProjection());
string projGCP = string.Empty;
srGCP.ExportToWkt(out projGCP);
if (!string.IsNullOrEmpty(projEsri))
{
datasource.SetProjection(projEsri);
sr = srEsri;
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Spatial Reference System (SRS) morphed form ESRI format.");
}
else if (!string.IsNullOrEmpty(projGCP))
{
datasource.SetProjection(projGCP);
sr = srGCP;
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Spatial Reference System (SRS) set from Ground Control Points (GCPs).");
}
else
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Spatial Reference System (SRS) is unknown or unsupported. SRS assumed to be WGS84." +
"Try setting the SRS with the GdalWarp component using -t_srs EPSG:4326 for the option input.");
sr.SetWellKnownGeogCS("WGS84");
}
}
else
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Data source SRS: EPSG:" + sr.GetAttrValue("AUTHORITY", 1));
}
}
//OSGeo.OSR.SpatialReference sr = new SpatialReference(ds.GetProjection());
OSGeo.OSR.SpatialReference dst = new OSGeo.OSR.SpatialReference("");
dst.SetWellKnownGeogCS("WGS84");
OSGeo.OSR.CoordinateTransformation coordTransform = new OSGeo.OSR.CoordinateTransformation(sr, dst);
OSGeo.OSR.CoordinateTransformation revTransform = new OSGeo.OSR.CoordinateTransformation(dst, sr);
double[] adfGeoTransform = new double[6];
double[] invTransform = new double[6];
datasource.GetGeoTransform(adfGeoTransform);
Gdal.InvGeoTransform(adfGeoTransform, invTransform);
int width = datasource.RasterXSize;
int height = datasource.RasterYSize;
///Dataset bounding box
double oX = adfGeoTransform[0] + adfGeoTransform[1] * 0 + adfGeoTransform[2] * 0;
double oY = adfGeoTransform[3] + adfGeoTransform[4] * 0 + adfGeoTransform[5] * 0;
double eX = adfGeoTransform[0] + adfGeoTransform[1] * width + adfGeoTransform[2] * height;
double eY = adfGeoTransform[3] + adfGeoTransform[4] * width + adfGeoTransform[5] * height;
///Transform to WGS84
double[] extMinPT = new double[3] {
oX, eY, 0
};
double[] extMaxPT = new double[3] {
eX, oY, 0
};
coordTransform.TransformPoint(extMinPT);
coordTransform.TransformPoint(extMaxPT);
Point3d dsMin = new Point3d(extMinPT[0], extMinPT[1], extMinPT[2]);
Point3d dsMax = new Point3d(extMaxPT[0], extMaxPT[1], extMaxPT[2]);
Rectangle3d dsbox = new Rectangle3d(Plane.WorldXY, Heron.Convert.WGSToXYZ(dsMin), Heron.Convert.WGSToXYZ(dsMax));
double pixelWidth = dsbox.Width / width;
double pixelHeight = dsbox.Height / height;
///Declare trees
GH_Structure <GH_Point> pointcloud = new GH_Structure <GH_Point>();
GH_Structure <GH_Integer> rCount = new GH_Structure <GH_Integer>();
GH_Structure <GH_Integer> cCount = new GH_Structure <GH_Integer>();
GH_Structure <GH_Mesh> tMesh = new GH_Structure <GH_Mesh>();
for (int i = 0; i < boundary.Count; i++)
{
GH_Path path = new GH_Path(i);
Curve clippingBoundary = boundary[i];
if (!clip)
{
clippingBoundary = dsbox.ToNurbsCurve();
}
string clippedTopoFile = "/vsimem/topoclipped.tif";
if (!(dsbox.BoundingBox.Contains(clippingBoundary.GetBoundingBox(true).Min) && (dsbox.BoundingBox.Contains(clippingBoundary.GetBoundingBox(true).Max))) && clip)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "One or more boundaries may be outside the bounds of the topo dataset.");
}
///Offsets to mesh/boundary based on pixel size
Point3d clipperMinPreAdd = clippingBoundary.GetBoundingBox(true).Corner(true, false, true);
Point3d clipperMinPostAdd = new Point3d(clipperMinPreAdd.X, clipperMinPreAdd.Y, clipperMinPreAdd.Z);
Point3d clipperMin = Heron.Convert.XYZToWGS(clipperMinPostAdd);
Point3d clipperMaxPreAdd = clippingBoundary.GetBoundingBox(true).Corner(false, true, true);
///add/subtract pixel width if desired to get closer to boundary
Point3d clipperMaxPostAdd = new Point3d();
Point3d clipperMax = new Point3d();
if (clip)
{
clipperMaxPostAdd = new Point3d(clipperMaxPreAdd.X + pixelWidth, clipperMaxPreAdd.Y - pixelHeight, clipperMaxPreAdd.Z);
clipperMax = Heron.Convert.XYZToWGS(clipperMaxPostAdd);
}
else
{
clipperMaxPostAdd = new Point3d(clipperMaxPreAdd.X, clipperMaxPreAdd.Y, clipperMaxPreAdd.Z);
clipperMax = Heron.Convert.XYZToWGS(clipperMaxPostAdd);
}
double lonWest = clipperMin.X;
double lonEast = clipperMax.X;
double latNorth = clipperMin.Y;
double latSouth = clipperMax.Y;
var translateOptions = new[]
{
"-of", "GTiff",
"-a_nodata", "0",
"-projwin_srs", "WGS84",
"-projwin", $"{lonWest}", $"{latNorth}", $"{lonEast}", $"{latSouth}"
};
using (Dataset clippedDataset = Gdal.wrapper_GDALTranslate(clippedTopoFile, datasource, new GDALTranslateOptions(translateOptions), null, null))
{
Band band = clippedDataset.GetRasterBand(1);
width = clippedDataset.RasterXSize;
height = clippedDataset.RasterYSize;
clippedDataset.GetGeoTransform(adfGeoTransform);
Gdal.InvGeoTransform(adfGeoTransform, invTransform);
rCount.Append(new GH_Integer(height), path);
cCount.Append(new GH_Integer(width), path);
Mesh mesh = new Mesh();
List <Point3d> verts = new List <Point3d>();
//var vertsParallel = new System.Collections.Concurrent.ConcurrentDictionary<double[][], Point3d>(Environment.ProcessorCount, ((Urow - 1) * (Lrow - 1)));
double[] bits = new double[width * height];
band.ReadRaster(0, 0, width, height, bits, width, height, 0, 0);
for (int col = 0; col < width; col++)
{
for (int row = 0; row < height; row++)
{
// equivalent to bits[col][row] if bits is 2-dimension array
double pixel = bits[col + row * width];
if (pixel < -10000)
{
pixel = 0;
}
double gcol = adfGeoTransform[0] + adfGeoTransform[1] * col + adfGeoTransform[2] * row;
double grow = adfGeoTransform[3] + adfGeoTransform[4] * col + adfGeoTransform[5] * row;
///convert to WGS84
double[] wgsPT = new double[3] {
gcol, grow, pixel
};
coordTransform.TransformPoint(wgsPT);
Point3d pt = new Point3d(wgsPT[0], wgsPT[1], wgsPT[2]);
verts.Add(Heron.Convert.WGSToXYZ(pt));
}
/*Parallel.For(Urow, Lrow - 1, rowP =>
* {
* // equivalent to bits[col][row] if bits is 2-dimension array
* double pixel = bits[col + rowP * width];
* if (pixel < -10000)
* {
* pixel = 0;
* }
*
* double gcol = adfGeoTransform[0] + adfGeoTransform[1] * col + adfGeoTransform[2] * rowP;
* double grow = adfGeoTransform[3] + adfGeoTransform[4] * col + adfGeoTransform[5] * rowP;
*
* Point3d pt = new Point3d(gcol, grow, pixel);
* vertsParallel[] = Heron.Convert.ToXYZ(pt);
* });
* */
}
//Create meshes
//non Parallel
mesh.Vertices.AddVertices(verts);
//Parallel
//mesh.Vertices.AddVertices(vertsParallel.Values);
for (int u = 1; u < cCount[path][0].Value; u++)
{
for (int v = 1; v < rCount[path][0].Value; v++)
{
mesh.Faces.AddFace(v - 1 + (u - 1) * (height), v - 1 + u * (height), v - 1 + u * (height) + 1, v - 1 + (u - 1) * (height) + 1);
//(k - 1 + (j - 1) * num2, k - 1 + j * num2, k - 1 + j * num2 + 1, k - 1 + (j - 1) * num2 + 1)
}
}
//mesh.Flip(true, true, true);
tMesh.Append(new GH_Mesh(mesh), path);
band.Dispose();
}
Gdal.Unlink("/vsimem/topoclipped.tif");
}
datasource.Dispose();
DA.SetDataTree(0, tMesh);
DA.SetData(1, dsbox);
DA.SetData(2, srcInfo);
}
/// <summary>
/// This is the method that actually does the work.
/// </summary>
/// <param name="DA">The DA object is used to retrieve from inputs and store in outputs.</param>
protected override void SolveInstance(IGH_DataAccess DA)
{
///TODO: fix crash with "multi" types in a branch for shapefiles, can't create lines in a points layer
/// fix mesh/polygon face creation issue on sphere, dropping faces or flipped faces
/// fix swtich case for shapfiles so that points and multipoints (eg) are written to the same file. don't use switch anymore, us ifs
/// fix sql statements, they don't seem to have an effect. Need these to work for pulling apart geometry collections.
///Gather GHA inputs
string filename = string.Empty;
DA.GetData <string>("Vector Data Filename", ref filename);
string folder = string.Empty;
DA.GetData <string>("Vector Data Folder", ref folder);
folder = Path.GetFullPath(folder);
if (!folder.EndsWith(Path.DirectorySeparatorChar.ToString()))
{
folder += Path.DirectorySeparatorChar;
}
string shpPath = folder + filename + drvExtension;
///for more than one geometry type, a list of files for shapefile output needs to be established
List <string> shpPathList = new List <string>();
List <string> shpTypeList = new List <string>();
List <string> fields = new List <string>();
DA.GetDataList <string>("Fields", fields);
GH_Structure <GH_String> values = new GH_Structure <GH_String>();
DA.GetDataTree <GH_String>("Values", out values);
GH_Structure <IGH_GeometricGoo> gGoo = new GH_Structure <IGH_GeometricGoo>();
DA.GetDataTree <IGH_GeometricGoo>("Feature Geometry", out gGoo);
bool export = false;
DA.GetData <bool>("Export", ref export);
///GDAL setup
RESTful.GdalConfiguration.ConfigureOgr();
OSGeo.GDAL.Gdal.SetConfigOption("OGR_SKIP", "KML");
string driverType = drvType;
//OSGeo.OGR.Driver drv = Ogr.GetDriverByName("LIBKML");// driverType);
OSGeo.OGR.Driver drv = Ogr.GetDriverByName("GeoJSON");
if (export == true)
{
///File setup for save
FileInfo file = new FileInfo(folder);
file.Directory.Create();
if (File.Exists(shpPath))
{
drv.DeleteDataSource(shpPath);
}
///Create virtual datasource to be converted later
///Using geojson as a flexiblle base file type which can be converted later with ogr2ogr
DataSource ds = drv.CreateDataSource("/vsimem/out.geojson", null);
///Use WGS84 spatial reference
OSGeo.OSR.SpatialReference dst = new OSGeo.OSR.SpatialReference("");
dst.SetWellKnownGeogCS("WGS84");
Transform transform = Heron.Convert.XYZToWGSTransform();
///Use OGR catch-all for geometry types
var gtype = wkbGeometryType.wkbGeometryCollection;
///Create layer
//string[] layerOptions = new string[] { "LIBKML_USE_SCHEMADATA=NO", "LIBKML_USE_SIMPLEFIELD=NO", "LIBKML_ALTITUDEMODE_FIELD=relativeToGround" };
//string[] layerOptions = new string[] { "LIBKML_STRICT_COMPLIANCE=FALSE" };
OSGeo.OGR.Layer layer = ds.CreateLayer(filename, dst, gtype, null);
FeatureDefn def = layer.GetLayerDefn();
///Add fields to layer
for (int f = 0; f < fields.Count; f++)
{
OSGeo.OGR.FieldDefn fname = new OSGeo.OGR.FieldDefn(fields[f], OSGeo.OGR.FieldType.OFTString);
layer.CreateField(fname, f);
}
///Specific fields for LIBKML for use in Google Earth
///See LIBMKL driver for more info https://gdal.org/drivers/vector/libkml.html
if (drvType == "LIBKML")
{
OSGeo.OGR.FieldDefn kmlFieldAltitudeMode = new OSGeo.OGR.FieldDefn("altitudeMode", OSGeo.OGR.FieldType.OFTString);
layer.CreateField(kmlFieldAltitudeMode, fields.Count());
//OSGeo.OGR.FieldDefn kmlFieldExtrude = new OSGeo.OGR.FieldDefn("tessellate", OSGeo.OGR.FieldType.OFTInteger);
//layer.CreateField(kmlFieldExtrude, fields.Count()+1);
}
for (int a = 0; a < gGoo.Branches.Count; a++)
{
///create feature
OSGeo.OGR.Feature feature = new OSGeo.OGR.Feature(def);
///Set LIBKML specific fields for use in Google Earth, defaulting to 'relativeToGround'. Consider setting to 'absolute'.
if (drvType == "LIBKML")
{
feature.SetField("altitudeMode", "relativeToGround");
//feature.SetField("altitudeMode", "absolute");
//feature.SetField("tessellate", 0);
}
///TODO: Build style table
OSGeo.OGR.StyleTable styleTable = new StyleTable();
//feature.SetStyleString("BRUSH(fc:#0000FF);PEN(c:#000000)");
///Get geometry type(s) in branch
var geomList = gGoo.Branches[a];
string geomType = string.Empty;
List <string> geomTypeList = geomList.Select(o => o.TypeName).ToList();
///Test if geometry in the branch is of the same type.
///If there is more than one element of a type, tag as multi, if there is more than one type, tag as mixed
if (geomTypeList.Count == 1)
{
geomType = geomTypeList.First();
}
else if (geomTypeList.Count > 1 && geomTypeList.All(gt => gt == geomTypeList.First()))
{
geomType = "Multi" + geomTypeList.First();
}
else
{
geomType = "Mixed";
}
///For testing
//AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, geomType);
///Add geomtery to feature
///Create containers for translating from GH Goo
Point3d pt = new Point3d();
List <Point3d> pts = new List <Point3d>();
Curve crv = null;
List <Curve> crvs = new List <Curve>();
Mesh mesh = new Mesh();
Mesh multiMesh = new Mesh();
switch (geomType)
{
case "Point":
geomList.First().CastTo <Point3d>(out pt);
feature.SetGeometry(Heron.Convert.Point3dToOgrPoint(pt, transform));
if (!shpTypeList.Contains("POINT"))
{
shpTypeList.Add("POINT");
}
break;
case "MultiPoint":
foreach (var point in geomList)
{
point.CastTo <Point3d>(out pt);
pts.Add(pt);
}
feature.SetGeometry(Heron.Convert.Point3dsToOgrMultiPoint(pts, transform));
if (!shpTypeList.Contains("MULTIPOINT"))
{
shpTypeList.Add("MULTIPOINT");
}
break;
case "Curve":
geomList.First().CastTo <Curve>(out crv);
feature.SetGeometry(Heron.Convert.CurveToOgrLinestring(crv, transform));
if (!shpTypeList.Contains("LINESTRING"))
{
shpTypeList.Add("LINESTRING");
}
break;
case "MultiCurve":
foreach (var curve in geomList)
{
curve.CastTo <Curve>(out crv);
crvs.Add(crv);
}
feature.SetGeometry(Heron.Convert.CurvesToOgrMultiLinestring(crvs, transform));
if (!shpTypeList.Contains("MULTILINESTRING"))
{
shpTypeList.Add("MULTILINESTRING");
}
break;
case "Mesh":
geomList.First().CastTo <Mesh>(out mesh);
feature.SetGeometry(Heron.Convert.MeshToMultiPolygon(mesh, transform));
if (!shpTypeList.Contains("MULTIPOLYGON"))
{
shpTypeList.Add("MULTIPOLYGON");
}
break;
case "MultiMesh":
foreach (var m in geomList)
{
Mesh meshPart = new Mesh();
m.CastTo <Mesh>(out meshPart);
multiMesh.Append(meshPart);
}
feature.SetGeometry(Heron.Convert.MeshToMultiPolygon(multiMesh, transform));
if (!shpTypeList.Contains("MULTIPOLYGON"))
{
shpTypeList.Add("MULTIPOLYGON");
}
break;
case "Mixed":
OSGeo.OGR.Geometry geoCollection = new OSGeo.OGR.Geometry(wkbGeometryType.wkbGeometryCollection);
for (int gInt = 0; gInt < geomList.Count; gInt++)
{
string geomTypeMixed = geomTypeList[gInt];
switch (geomTypeMixed)
{
case "Point":
geomList[gInt].CastTo <Point3d>(out pt);
geoCollection.AddGeometry(Heron.Convert.Point3dToOgrPoint(pt, transform));
break;
case "Curve":
geomList[gInt].CastTo <Curve>(out crv);
geoCollection.AddGeometry(Heron.Convert.CurveToOgrLinestring(crv, transform));
break;
case "Mesh":
geomList[gInt].CastTo <Mesh>(out mesh);
geoCollection.AddGeometry(Ogr.ForceToMultiPolygon(Heron.Convert.MeshToMultiPolygon(mesh, transform)));
break;
default:
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Not able to export " + geomType + " geometry at branch " + gGoo.get_Path(a).ToString() +
". Geometry must be a Point, Curve or Mesh.");
break;
}
}
feature.SetGeometry(geoCollection);
if (!shpTypeList.Contains("GEOMETRYCOLLECTION"))
{
shpTypeList.Add("GEOMETRYCOLLECTION");
}
break;
default:
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Not able to export " + geomType + " geometry at branch " + gGoo.get_Path(a).ToString() +
". Geometry must be a Point, Curve or Mesh.");
break;
}
///Give the feature a unique ID
feature.SetFID(a);
///Add values to fields
GH_Path path = gGoo.get_Path(a);
for (int vInt = 0; vInt < fields.Count; vInt++)
{
string val = string.Empty;
if (values.get_Branch(path) != null)
{
val = values.get_DataItem(path, vInt).ToString();
}
feature.SetField(fields[vInt], val);
}
///Save feature to layer
layer.CreateFeature(feature);
///Cleanup
feature.Dispose();
}
layer.Dispose();
ds.Dispose();
drv.Dispose();
///Convert in memory dataset to file using ogr2ogr
///For KML set 'altitudeMode' to 'relativeToGround' or 'absolute'
///Set base options for all export types
if (drvType == "KML")
{
drvType = "LIBKML";
}
List <string> ogr2ogrOptions = new List <string> {
"-overwrite",
"-f", drvType,
"-dim", "XYZ",
"-skipfailures",
//"-lco", "LIBKML_STRICT_COMPLIANCE=FALSE",
//"-lco", "AltitudeMode=absolute",
//"-dsco", "SHAPE_REWIND_ON_WRITE=YES"
};
Dataset src = Gdal.OpenEx("/vsimem/out.geojson", 0, null, null, null);
if (drvType != "ESRI Shapefile")
{
Dataset destDataset = Gdal.wrapper_GDALVectorTranslateDestName(shpPath, src, new GDALVectorTranslateOptions(ogr2ogrOptions.ToArray()), null, null);
destDataset.Dispose();
shpPathList.Add(shpPath);
}
///Export multiple layers for shapefile
///https://trac.osgeo.org/gdal/wiki/FAQVector#HowdoItranslateamixedgeometryfiletoshapefileformat
else
{
///
if (shpTypeList.Count <= 1 && shpTypeList.First() != "GEOMETRYCOLLECTION")
{
if (shpTypeList.First() == "POLYGON" || shpTypeList.First() == "MULTIPOLYGON")
{
ogr2ogrOptions.AddRange(new List <string> {
"-lco", "SHPT=MULTIPATCH"
});
}
Dataset destDataset = Gdal.wrapper_GDALVectorTranslateDestName(shpPath, src, new GDALVectorTranslateOptions(ogr2ogrOptions.ToArray()), null, null);
destDataset.Dispose();
shpPathList.Add(shpPath);
}
else
{
///Add -explodecollections for mixed geometries in a branch
///"-where" statement is not necessary, but could speed up big datasets
string shpFileName = string.Empty;
List <string> ogr2ogrShpOptions = new List <string>();
if (shpTypeList.Contains("POINT") || shpTypeList.Contains("MULTIPOINT"))
{
shpFileName = folder + filename + "_points.shp";
shpPathList.Add(shpFileName);
List <string> ogr2ogrShpOptionsPts = new List <string> {
"-overwrite",
"-f", drvType,
"-dim", "XYZ",
"-skipfailures"
};
//ogr2ogrShpOptionsPts.AddRange(new List<string> { "-where", "ogr_geometry=POINT", "-where", "ogr_geometry=MULTIPOINT", "-lco", "SHPT=MULTIPOINTZ", "-nlt", "PROMOTE_TO_MULTI"});
ogr2ogrShpOptionsPts.AddRange(new List <string> {
"-sql", "SELECT * FROM " + filename + " WHERE OGR_GEOMETRY='MULTIPOINT' OR OGR_GEOMETRY='POINT'", "-lco", "SHPT=MULTIPOINTZ", "-nlt", "PROMOTE_TO_MULTI"
});
//ogr2ogrShpOptionsPts.AddRange(new List<string> { "-dialect", "sqlite", "-sql", "select * from " + filename + " where GeometryType(geometry) in ('POINT','MULTIPOINT')", "-lco", "SHPT=MULTIPOINTZ", "-nlt", "PROMOTE_TO_MULTI" });
Dataset destDatasetPoint = Gdal.wrapper_GDALVectorTranslateDestName(shpFileName, src, new GDALVectorTranslateOptions(ogr2ogrShpOptionsPts.ToArray()), null, null);
destDatasetPoint.Dispose();
}
if (shpTypeList.Contains("LINESTRING") || shpTypeList.Contains("MULTILINESTRING"))
{
shpFileName = folder + filename + "_lines.shp";
shpPathList.Add(shpFileName);
List <string> ogr2ogrShpOptionsLines = new List <string> {
"-overwrite",
"-f", drvType,
"-dim", "XYZ",
"-skipfailures"
};
//ogr2ogrShpOptionsLines.AddRange(new List<string> { "-where", "ogr_geometry=LINESTRING25D", "-where", "ogr_geometry=MULTILINESTRING25D", "-lco", "SHPT=ARCZ", "-nlt", "PROMOTE_TO_MULTI" });
ogr2ogrShpOptionsLines.AddRange(new List <string> {
"-sql", "SELECT * FROM " + filename + " WHERE OGR_GEOMETRY='LINESTRING' OR OGR_GEOMETRY='MULTILINESTRING'", "-lco", "SHPT=ARCZ", "-nlt", "PROMOTE_TO_MULTI"
});
//ogr2ogrShpOptionsLines.AddRange(new List<string> { "-dialect", "sqlite", "-sql", "select * from " + filename + " where GeometryType(geometry) in ('LINESTRING','MULTILINESTRING')", "-lco", "SHPT=ARCZ", "-nlt", "PROMOTE_TO_MULTI" });
Dataset destDatasetLinestring = Gdal.wrapper_GDALVectorTranslateDestName(shpFileName, src, new GDALVectorTranslateOptions(ogr2ogrShpOptionsLines.ToArray()), null, null);
destDatasetLinestring.Dispose();
}
if (shpTypeList.Contains("POLYGON") || shpTypeList.Contains("MULTIPOLYGON"))
{
shpFileName = folder + filename + "_polygons.shp";
shpPathList.Add(shpFileName);
List <string> ogr2ogrShpOptionsPolygons = new List <string> {
"-overwrite",
"-f", drvType,
"-dim", "XYZ",
"-skipfailures",
"-dsco", "SHAPE_REWIND_ON_WRITE=NO"
};
//ogr2ogrShpOptionsPolygons.AddRange(new List<string> { "-where", "ogr_geometry=POLYGON", "-where", "ogr_geometry=MULTIPOLYGON", "-lco", "SHPT=POLYGONZ", "-nlt", "PROMOTE_TO_MULTI" });
ogr2ogrShpOptionsPolygons.AddRange(new List <string> {
"-sql", "SELECT * FROM " + filename + " WHERE OGR_GEOMETRY='MULTIPOLYGON25D' OR OGR_GEOMETRY='POLYGON25D'", "-lco", "SHPT=POLYGONZ", "-nlt", "PROMOTE_TO_MULTI"
});
Dataset destDatasetPolygon = Gdal.wrapper_GDALVectorTranslateDestName(shpFileName, src, new GDALVectorTranslateOptions(ogr2ogrShpOptionsPolygons.ToArray()), null, null);
destDatasetPolygon.Dispose();
}
///Not working properly when multiple geometry types are part of the same branch for SHP export.
if (shpTypeList.Contains("GEOMETRYCOLLECTION"))
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "One or more branches contain a mix of geometry types.");
///export points
shpFileName = folder + filename + "_gc-points.shp";
shpPathList.Add(shpFileName);
List <string> ogr2ogrShpOptionsGCPts = new List <string> {
"-overwrite",
"-f", drvType,
"-dim", "XYZ",
"-skipfailures"
};
ogr2ogrShpOptionsGCPts.AddRange(new List <string> {
"-explodecollections", "-where", "ogr_geometry=GEOMETRYCOLLECTION", "-lco", "SHPT=MULTIPOINTZ", "-nlt", "PROMOTE_TO_MULTI"
});
//ogr2ogrShpOptionsGCPts.AddRange(new List<string> { "-explodecollections", "-sql", "SELECT * FROM " + filename + " WHERE OGR_GEOMETRY='MULTIPOINT' OR OGR_GEOMETRY='POINT'", "-lco", "SHPT=MULTIPOINTZ", "-nlt", "PROMOTE_TO_MULTI" });
Dataset destDatasetGCPoints = Gdal.wrapper_GDALVectorTranslateDestName(shpFileName, src, new GDALVectorTranslateOptions(ogr2ogrShpOptionsGCPts.ToArray()), null, null);
destDatasetGCPoints.Dispose();
///export lines
shpFileName = folder + filename + "_gc-lines.shp";
shpPathList.Add(shpFileName);
List <string> ogr2ogrShpOptionsGCLines = new List <string> {
"-overwrite",
"-f", drvType,
"-dim", "XYZ",
"-skipfailures"
};
ogr2ogrShpOptionsGCLines.AddRange(new List <string> {
"-explodecollections", "-where", "ogr_geometry=GEOMETRYCOLLECTION", "-lco", "SHPT=ARCZ", "-nlt", "PROMOTE_TO_MULTI"
});
//ogr2ogrShpOptionsGCLines.AddRange(new List<string> { "-explodecollections", "-sql", "SELECT * FROM " + filename + " WHERE OGR_GEOMETRY='MULTILINESTRING25D' OR OGR_GEOMETRY='LINESTRING25D'", "-lco", "SHPT=ARCZ", "-nlt", "PROMOTE_TO_MULTI" });
Dataset destDatasetGCLines = Gdal.wrapper_GDALVectorTranslateDestName(shpFileName, src, new GDALVectorTranslateOptions(ogr2ogrShpOptionsGCLines.ToArray()), null, null);
destDatasetGCLines.Dispose();
///export meshes
shpFileName = folder + filename + "_gc-polygons.shp";
shpPathList.Add(shpFileName);
List <string> ogr2ogrShpOptionsGCPolygons = new List <string> {
"-overwrite",
"-f", drvType,
"-dim", "XYZ",
"-skipfailures",
"-dsco", "SHAPE_REWIND_ON_WRITE=NO"
};
ogr2ogrShpOptionsGCPolygons.AddRange(new List <string> {
"-explodecollections", "-where", "ogr_geometry=GEOMETRYCOLLECTION", "-lco", "SHPT=POLYGONZ", "-nlt", "PROMOTE_TO_MULTI"
});
//ogr2ogrShpOptionsGCPolygons.AddRange(new List<string> { "-explodecollections", "-sql", "SELECT * FROM " + filename + " WHERE OGR_GEOMETRY='MULTIPOLYGON' OR OGR_GEOMETRY='POLYGON'", "-lco", "SHPT=POLYGONZ", "-nlt", "PROMOTE_TO_MULTI" });
Dataset destDatasetGCPolygons = Gdal.wrapper_GDALVectorTranslateDestName(shpFileName, src, new GDALVectorTranslateOptions(ogr2ogrShpOptionsGCPolygons.ToArray()), null, null);
destDatasetGCPolygons.Dispose();
}
}
}
///Clean up
Gdal.Unlink("/vsimem/out.geojson");
}
DA.SetDataList(0, shpPathList);
}