/// <summary>
/// 判断数据是否是有效数据
/// </summary>
/// <returns></returns>
public bool IsValidDataSource()
{
_ogrLayer.ResetReading();
int featureCount = _ogrLayer.GetFeatureCount(1);
if (featureCount <= 0)
{
return(false);
}
Feature pFeature = _ogrLayer.GetNextFeature();
if (pFeature == null)
{
return(false);
}
Geometry pGeom = pFeature.GetGeometryRef();
if (pGeom == null)
{
return(false);
}
if (pGeom.GetGeometryType() == wkbGeometryType.wkbNone || pGeom.GetGeometryType() == wkbGeometryType.wkbUnknown)
{
return(false);
}
return(true);
}
/// <summary>
/// Returns geometry Object IDs whose bounding box intersects 'bbox'
/// </summary>
/// <param name="bbox"></param>
/// <returns></returns>
public Collection <uint> GetObjectIDsInView(SharpMap.Geometries.BoundingBox bbox)
{
_OgrLayer.SetSpatialFilterRect(bbox.Min.X, bbox.Min.Y, bbox.Max.X, bbox.Max.Y);
OSGeo.OGR.Feature _OgrFeature = null;
_OgrLayer.ResetReading();
Collection <uint> _ObjectIDs = new Collection <uint>();
while ((_OgrFeature = _OgrLayer.GetNextFeature()) != null)
{
_ObjectIDs.Add((uint)_OgrFeature.GetFID());
_OgrFeature.Dispose();
}
return(_ObjectIDs);
}
/// <summary>
/// Returns geometry Object IDs whose bounding box intersects 'bbox'
/// </summary>
/// <param name="bbox"></param>
/// <returns></returns>
public Collection <uint> GetObjectIDsInView(IEnvelope bbox)
{
_OgrLayer.SetSpatialFilterRect(bbox.MinX, bbox.MinY, bbox.MaxX, bbox.MaxY);
OSGeo.OGR.Feature _OgrFeature = null;
_OgrLayer.ResetReading();
Collection <uint> _ObjectIDs = new Collection <uint>();
while ((_OgrFeature = _OgrLayer.GetNextFeature()) != null)
{
_ObjectIDs.Add((uint)_OgrFeature.GetFID());
_OgrFeature.Dispose();
}
return(_ObjectIDs);
}
public static string ToGeoJson(string shpPath)
{
OSGeo.OGR.Ogr.RegisterAll();
Driver drv = Ogr.GetDriverByName("ESRI Shapefile");
using (var ds = drv.Open(shpPath, 0))
{
OSGeo.OGR.Layer layer = ds.GetLayerByIndex(0);
OSGeo.OGR.Feature f;
layer.ResetReading();
System.Text.StringBuilder sb = new System.Text.StringBuilder();
while ((f = layer.GetNextFeature()) != null)
{
var geom = f.GetGeometryRef();
if (geom != null)
{
var geometryJson = geom.ExportToJson(null);
sb.AppendLine(geometryJson);
}
}
return(sb.ToString());
}
}
public FeatureWrapper GetNextFeature()
{
var feature = _ogrLayer.GetNextFeature();
if (feature == null)
{
return(null);
}
var featureWrapper = new FeatureWrapper(feature);
return(featureWrapper);
}
/// <summary>
/// Adds the features for the dxf files.
/// </summary>
/// <param name="fs">The list of featuresets the features get added to.</param>
/// <param name="styles">The list of lists the styles get added to.</param>
/// <param name="layer">The layer to get the features from.</param>
/// <param name="fieldCount">The number of field contained in the features datarow.</param>
/// <param name="schema">The list of columns used to fill the datarow.</param>
private static void AddFeatures(Dictionary <FeatureType, IFeatureSet> fs, Dictionary <FeatureType, List <string> > styles, Layer layer, int fieldCount, IList <Column> schema)
{
var wkbReader = new WKBReader();
OgrFeature ogrFeature = layer.GetNextFeature();
while (ogrFeature != null)
{
var wkbGeometry = GetGeometry(ogrFeature);
var geometry = wkbReader.Read(wkbGeometry);
if (geometry != null && geometry.IsValid && !geometry.IsEmpty)
{
IFeature feature = new Feature(geometry);
if (feature.FeatureType != FeatureType.Unspecified)
{
fs[feature.FeatureType].Features.Add(feature);
for (int i = 0; i < fieldCount; i++)
{
feature.DataRow[i] = GetValue(i, schema, ogrFeature) ?? DBNull.Value;
}
var str = ogrFeature.GetStyleString();
if (!string.IsNullOrWhiteSpace(str))
{
str = RemoveText(str);
feature.DataRow["style"] = str;
if (!styles[feature.FeatureType].Contains(str))
{
// add the style to the layer
styles[feature.FeatureType].Add(str);
}
}
}
}
ogrFeature = layer.GetNextFeature();
}
}
/// <summary>
/// Adds the features for the other file types.
/// </summary>
/// <param name="fs">The featureset the features get added to.</param>
/// <param name="styles">The list the styles get added to.</param>
/// <param name="layer">The layer to get the features from.</param>
/// <param name="ogrFeatureDefinition">The feature definition that contains the field count.</param>
/// <param name="schema">The list of columns used to fill the datarow.</param>
private static void AddFeatures(IFeatureSet fs, IList <string> styles, Layer layer, FeatureDefn ogrFeatureDefinition, IList <Column> schema)
{
var wkbReader = new WKBReader();
OgrFeature ogrFeature = layer.GetNextFeature();
var fieldCount = ogrFeatureDefinition.GetFieldCount();
while (ogrFeature != null)
{
var wkbGeometry = GetGeometry(ogrFeature);
var geometry = wkbReader.Read(wkbGeometry);
if (geometry != null && geometry.IsValid && !geometry.IsEmpty)
{
IFeature feature = new Feature(geometry);
if (fs.Features.Count == 0 || feature.FeatureType == fs.FeatureType)
{
fs.Features.Add(feature);
for (int i = 0; i < fieldCount; i++)
{
feature.DataRow[i] = GetValue(i, schema, ogrFeature) ?? DBNull.Value;
}
var str = ogrFeature.GetStyleString();
feature.DataRow["style"] = str;
if (!styles.Contains(str))
{
// add the style to the layer
styles.Add(str);
}
}
}
ogrFeature = layer.GetNextFeature();
}
}
public static void ConvertSHPtoGJSON(string shapefilePath, out StringBuilder gJSON)
{
string shpPath = shapefilePath;
Ogr.RegisterAll();
OSGeo.OGR.Driver drv = Ogr.GetDriverByName("ESRI Shapefile");
var ds = drv.Open(shpPath, 0);
/*
* Driver geoJSONDriver = Ogr.GetDriverByName("GeoJSON");
*
* string geojsonfilepath = @"c:\temp\us_counties_test.json";
*
* if (System.IO.File.Exists(geojsonfilepath))
* System.IO.File.Delete(geojsonfilepath);
*
* geoJSONDriver.CreateDataSource(@"c:\temp\us_counties_test.json", null);
*/
OSGeo.OGR.Layer layer = ds.GetLayerByIndex(0);
OSGeo.OGR.Feature f;
layer.ResetReading();
System.Text.StringBuilder sb = new System.Text.StringBuilder();
var options = new[]
{
"-f", "GeoJSON",
"-lco", "RFC7946=YES"
};
while ((f = layer.GetNextFeature()) != null)
{
var geom = f.GetGeometryRef();
if (geom != null)
{
var geometryJson = geom.ExportToJson(options);
sb.AppendLine(geometryJson);
}
}
gJSON = sb;
}
//read data really
private static FeatureCollection GetFeatureCollection(OSGeo.OGR.Layer layer, GisSmartTools.Data.Schema schema)
{
FeatureCollection fc = new FeatureCollection();
OSGeo.OGR.Feature feature;
OSGeo.OGR.FeatureDefn posDefn = layer.GetLayerDefn();
int fieldCount = posDefn.GetFieldCount();
int iField = 0;
//read all the features in layer
while ((feature = layer.GetNextFeature()) != null)
{
OSGeo.OGR.Geometry geometry = feature.GetGeometryRef();
GisSmartTools.Data.Feature feat = new Feature(feature.GetFID(), schema, null);
//get and save feature's attributes
for (iField = 0; iField < fieldCount; iField++)
{
OSGeo.OGR.FieldDefn oField = posDefn.GetFieldDefn(iField);
Object objAttr;
FieldType ft = oField.GetFieldType();
switch (ft)
{
case FieldType.OFTString:
objAttr = feature.GetFieldAsString(iField);
break;
case FieldType.OFTInteger:
objAttr = feature.GetFieldAsInteger(iField);
break;
case FieldType.OFTReal:
objAttr = feature.GetFieldAsDouble(iField);
break;
case FieldType.OFTWideString:
objAttr = feature.GetFieldAsString(iField);
break;
case FieldType.OFTStringList:
objAttr = feature.GetFieldAsStringList(iField);
break;
case FieldType.OFTIntegerList:
int outCount;
objAttr = feature.GetFieldAsIntegerList(iField, out outCount);
break;
case FieldType.OFTRealList:
int outCount2;
objAttr = feature.GetFieldAsDoubleList(iField, out outCount2);
break;
case FieldType.OFTWideStringList:
objAttr = feature.GetFieldAsStringList(iField);
break;
default:
objAttr = feature.GetFieldAsString(iField);
break;
}
feat.AddAttribute(oField.GetName(), objAttr);
}
//get geometry
if (geometry != null)
{
OSGeo.OGR.wkbGeometryType goetype = geometry.GetGeometryType();
switch (goetype) //according to the type, we operate differently
{
case wkbGeometryType.wkbPoint:
if (geometry != null && goetype == wkbGeometryType.wkbPoint)
{
feat.geometry = new PointD(geometry.GetX(0), geometry.GetY(0));
}
//add feature to featureCollection
fc.InsertFeature(feat);
break;
case wkbGeometryType.wkbLineString:
List <PointD> pointlist = new List <PointD>();
int pointcount = geometry.GetPointCount();
for (int k = 0; k < pointcount; k++)
{
pointlist.Add(new PointD(geometry.GetX(k), geometry.GetY(k)));
}
feat.geometry = new SimplePolyline(pointlist);
//add feature to featureCollection
fc.InsertFeature(feat);
break;
case wkbGeometryType.wkbMultiLineString:
feat.geometry = GetPolyline(geometry);
fc.InsertFeature(feat);
break;
case wkbGeometryType.wkbPolygon:
feat.geometry = GetSimplePolygon(geometry);
//add feature to featureCollection
fc.InsertFeature(feat);
break;
case wkbGeometryType.wkbMultiPolygon:
feat.geometry = GetPolygon(geometry);
fc.InsertFeature(feat);
break;
default:
//we don't support another geometry types,
//so we don't load those records to avoid errors
break;
}
}
else
{
Console.WriteLine("kkkkkkkkkkkkkkkkkkkkkkkkkkkkkk");
}
}
return(fc);
}
protected override void SolveInstance(IGH_DataAccess DA)
{
///Gather GHA inputs
List <Curve> boundary = new List <Curve>();
DA.GetDataList <Curve>("Boundary", boundary);
string shpFilePath = string.Empty;
DA.GetData <string>("Vector Data Location", ref shpFilePath);
bool cropIt = true;
DA.GetData <Boolean>("Crop file", ref cropIt);
string userSRStext = "WGS84";
DA.GetData <string>(2, ref userSRStext);
///GDAL setup
///Some preliminary testing has been done to read SHP, GeoJSON, OSM, KML, MVT, GML and GDB
///It can be spotty with KML, MVT and GML and doesn't throw informative errors. Likely has to do with getting a valid CRS and
///TODO: resolve errors with reading KML, MVT, GML.
DataSource dataSource = CreateDataSource(shpFilePath);
List <Layer> layerSet = GetLayers(dataSource);
///Declare trees
GH_Structure <GH_Rectangle> recs = new GH_Structure <GH_Rectangle>();
GH_Structure <GH_String> spatialReferences = new GH_Structure <GH_String>();
GH_Structure <GH_String> fnames = new GH_Structure <GH_String>();
GH_Structure <GH_String> fset = new GH_Structure <GH_String>();
GH_Structure <GH_Point> gset = new GH_Structure <GH_Point>();
GH_Structure <GH_Point> gsetUser = new GH_Structure <GH_Point>();
GH_Structure <GH_Rectangle> recsUser = new GH_Structure <GH_Rectangle>();
GH_Structure <GH_String> gtype = new GH_Structure <GH_String>();
GH_Structure <IGH_GeometricGoo> gGoo = new GH_Structure <IGH_GeometricGoo>();
///Loop through each layer. Layers usually occur in Geodatabase GDB format. SHP usually has only one layer.
for (int iLayer = 0; iLayer < dataSource.GetLayerCount(); iLayer++)
{
OSGeo.OGR.Layer layer = dataSource.GetLayerByIndex(iLayer);
if (layer == null)
{
Console.WriteLine($"Couldn't fetch advertised layer {iLayer}");
System.Environment.Exit(-1);
}
long count = layer.GetFeatureCount(1);
int featureCount = System.Convert.ToInt32(count);
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, $"Layer #{iLayer} {layer.GetName()} has {featureCount} features");
///Get the spatial reference of the input vector file and set to WGS84 if not known
///
OSGeo.OSR.SpatialReference sourceSRS = new SpatialReference(Osr.SRS_WKT_WGS84);
string spatialReference = GetSpatialReference(layer, iLayer, dataSource, sourceSRS);
spatialReferences.Append(new GH_String(spatialReference), new GH_Path(iLayer));
///Set transform from input spatial reference to Rhino spatial reference
///TODO: look into adding a step for transforming to CRS set in SetCRS
OSGeo.OSR.SpatialReference rhinoSRS = new OSGeo.OSR.SpatialReference("");
rhinoSRS.SetWellKnownGeogCS("WGS84");
///TODO: verify the userSRS is valid
///TODO: use this as override of global SetSRS
OSGeo.OSR.SpatialReference userSRS = new OSGeo.OSR.SpatialReference("");
userSRS.SetFromUserInput(userSRStext);
///These transforms move and scale in order to go from userSRS to XYZ and vice versa
Transform userSRSToModelTransform = Heron.Convert.GetUserSRSToModelTransform(userSRS);
Transform modelToUserSRSTransform = Heron.Convert.GetModelToUserSRSTransform(userSRS);
Transform sourceToModelSRSTransform = Heron.Convert.GetUserSRSToModelTransform(sourceSRS);
Transform modelToSourceSRSTransform = Heron.Convert.GetModelToUserSRSTransform(sourceSRS);
///Get OGR envelope of the data in the layer in the sourceSRS
OSGeo.OGR.Envelope ext = new OSGeo.OGR.Envelope();
layer.GetExtent(ext, 1);
OSGeo.OGR.Geometry extMinSourceOgr = new OSGeo.OGR.Geometry(wkbGeometryType.wkbPoint);
extMinSourceOgr.AddPoint(ext.MinX, ext.MinY, 0.0);
extMinSourceOgr.AssignSpatialReference(sourceSRS);
OSGeo.OGR.Geometry extMaxSourceOgr = new OSGeo.OGR.Geometry(wkbGeometryType.wkbPoint);
extMaxSourceOgr.AddPoint(ext.MaxX, ext.MaxY, 0.0);
extMaxSourceOgr.AssignSpatialReference(sourceSRS);
///Get extents in Rhino SRS
Point3d extPTmin = Heron.Convert.OgrPointToPoint3d(extMinSourceOgr, sourceToModelSRSTransform);
Point3d extPTmax = Heron.Convert.OgrPointToPoint3d(extMaxSourceOgr, sourceToModelSRSTransform);
Rectangle3d rec = new Rectangle3d(Plane.WorldXY, extPTmin, extPTmax);
recs.Append(new GH_Rectangle(rec), new GH_Path(iLayer));
///Get extents in userSRS
///Can give odd results if crosses 180 longitude
extMinSourceOgr.TransformTo(userSRS);
extMaxSourceOgr.TransformTo(userSRS);
Point3d extPTminUser = Heron.Convert.OgrPointToPoint3d(extMinSourceOgr, userSRSToModelTransform);
Point3d extPTmaxUser = Heron.Convert.OgrPointToPoint3d(extMaxSourceOgr, userSRSToModelTransform);
Rectangle3d recUser = new Rectangle3d(Plane.WorldXY, extPTminUser, extPTmaxUser);
recsUser.Append(new GH_Rectangle(recUser), new GH_Path(iLayer));
if (boundary.Count == 0 && cropIt == true)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Define a boundary or set cropIt to False");
}
else if (boundary.Count == 0 && cropIt == false)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Clipping boundary has not been defined. File extents will be used instead");
boundary.Add(rec.ToNurbsCurve());
}
///Loop through input boundaries
for (int i = 0; i < boundary.Count; i++)
{
OSGeo.OGR.FeatureDefn def = layer.GetLayerDefn();
///Get the field names
List <string> fieldnames = new List <string>();
for (int iAttr = 0; iAttr < def.GetFieldCount(); iAttr++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iAttr);
fnames.Append(new GH_String(fdef.GetNameRef()), new GH_Path(i, iLayer));
}
///Check if boundary is contained in extent
if (!rec.IsValid || ((rec.Height == 0) && (rec.Width == 0)))
{
///Get field data if even if no geometry is present in the layer
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "One or more vector datasource bounds are not valid.");
OSGeo.OGR.Feature feat;
int m = 0;
while ((feat = layer.GetNextFeature()) != null)
{
///Loop through field values
for (int iField = 0; iField < feat.GetFieldCount(); iField++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iField);
fset.Append(new GH_String(feat.GetFieldAsString(iField)), new GH_Path(i, iLayer, m));
fdef.Dispose();
}
m++;
feat.Dispose();
}
}
else if (boundary[i] == null)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Clipping boundary " + i + " not set.");
}
else if (!boundary[i].IsValid)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Clipping boundary " + i + " is not valid.");
}
else if (rec.IsValid && Curve.PlanarClosedCurveRelationship(rec.ToNurbsCurve(), boundary[i], Plane.WorldXY, Rhino.RhinoDoc.ActiveDoc.ModelAbsoluteTolerance) == RegionContainment.Disjoint)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "One or more clipping boundaries may be outside the bounds of the vector datasource.");
}
else
{
///Create bounding box for clipping geometry
Point3d min = boundary[i].GetBoundingBox(true).Min;
Point3d max = boundary[i].GetBoundingBox(true).Max;
min.Transform(modelToSourceSRSTransform);
max.Transform(modelToSourceSRSTransform);
double[] minpT = new double[3];
double[] maxpT = new double[3];
minpT[0] = min.X;
minpT[1] = min.Y;
minpT[2] = min.Z;
maxpT[0] = max.X;
maxpT[1] = max.Y;
maxpT[2] = max.Z;
OSGeo.OGR.Geometry ebbox = OSGeo.OGR.Geometry.CreateFromWkt("POLYGON((" + minpT[0] + " " + minpT[1] + ", " + minpT[0] + " " + maxpT[1] + ", " + maxpT[0] + " " + maxpT[1] + ", " + maxpT[0] + " " + minpT[1] + ", " + minpT[0] + " " + minpT[1] + "))");
///Create bounding box for clipping geometry
///Not working on MVT type files
//boundary[i].Transform(modelToSourceSRSTransform);
//OSGeo.OGR.Geometry ebbox = Heron.Convert.CurveToOgrPolygon(boundary[i]);
///Clip Shapefile
///http://pcjericks.github.io/py-gdalogr-cookbook/vector_layers.html
OSGeo.OGR.Layer clipped_layer = layer;
if (cropIt)
{
clipped_layer.SetSpatialFilter(ebbox);
}
///Loop through geometry
OSGeo.OGR.Feature feat;
def = clipped_layer.GetLayerDefn();
int m = 0;
while ((feat = clipped_layer.GetNextFeature()) != null)
{
OSGeo.OGR.Geometry geom = feat.GetGeometryRef();
OSGeo.OGR.Geometry sub_geom;
OSGeo.OGR.Geometry geomUser = feat.GetGeometryRef().Clone();
OSGeo.OGR.Geometry sub_geomUser;
///reproject geometry to WGS84 and userSRS
///TODO: look into using the SetCRS global variable here
if (geom.GetSpatialReference() == null)
{
geom.AssignSpatialReference(sourceSRS);
}
if (geomUser.GetSpatialReference() == null)
{
geomUser.AssignSpatialReference(sourceSRS);
}
geom.TransformTo(rhinoSRS);
geomUser.TransformTo(userSRS);
gtype.Append(new GH_String(geom.GetGeometryName()), new GH_Path(i, iLayer, m));
if (feat.GetGeometryRef() != null)
{
///Convert GDAL geometries to IGH_GeometricGoo
gGoo.AppendRange(Heron.Convert.OgrGeomToGHGoo(geomUser, userSRSToModelTransform), new GH_Path(i, iLayer, m));
/// Get Feature Values
if (fset.PathExists(new GH_Path(i, iLayer, m)))
{
fset.get_Branch(new GH_Path(i, iLayer, m)).Clear();
}
for (int iField = 0; iField < feat.GetFieldCount(); iField++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iField);
if (feat.IsFieldSet(iField))
{
fset.Append(new GH_String(feat.GetFieldAsString(iField)), new GH_Path(i, iLayer, m));
}
else
{
fset.Append(new GH_String("null"), new GH_Path(i, iLayer, m));
}
}
///End get Feature Values
///Start get points if open polylines and points
for (int gpc = 0; gpc < geom.GetPointCount(); gpc++)
{
///Loop through geometry points for Rhino SRS
double[] ogrPt = new double[3];
geom.GetPoint(gpc, ogrPt);
Point3d pt3D = new Point3d(ogrPt[0], ogrPt[1], ogrPt[2]);
pt3D.Transform(Heron.Convert.WGSToXYZTransform());
gset.Append(new GH_Point(pt3D), new GH_Path(i, iLayer, m));
///Loop through geometry points for User SRS
double[] ogrPtUser = new double[3];
geomUser.GetPoint(gpc, ogrPtUser);
Point3d pt3DUser = new Point3d(ogrPtUser[0], ogrPtUser[1], ogrPtUser[2]);
pt3DUser.Transform(userSRSToModelTransform);
gsetUser.Append(new GH_Point(pt3DUser), new GH_Path(i, iLayer, m));
///End loop through geometry points
/// Get Feature Values
if (fset.PathExists(new GH_Path(i, iLayer, m)))
{
fset.get_Branch(new GH_Path(i, iLayer, m)).Clear();
}
for (int iField = 0; iField < feat.GetFieldCount(); iField++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iField);
if (feat.IsFieldSet(iField))
{
fset.Append(new GH_String(feat.GetFieldAsString(iField)), new GH_Path(i, iLayer, m));
}
else
{
fset.Append(new GH_String("null"), new GH_Path(i, iLayer, m));
}
}
///End Get Feature Values
}
///End getting points if open polylines or points
///Start getting points if closed polylines and multipolygons
for (int gi = 0; gi < geom.GetGeometryCount(); gi++)
{
sub_geom = geom.GetGeometryRef(gi);
OSGeo.OGR.Geometry subsub_geom;
sub_geomUser = geomUser.GetGeometryRef(gi);
OSGeo.OGR.Geometry subsub_geomUser;
if (sub_geom.GetGeometryCount() > 0)
{
for (int n = 0; n < sub_geom.GetGeometryCount(); n++)
{
subsub_geom = sub_geom.GetGeometryRef(n);
subsub_geomUser = sub_geomUser.GetGeometryRef(n);
for (int ptnum = 0; ptnum < subsub_geom.GetPointCount(); ptnum++)
{
///Loop through geometry points
double[] ogrPt = new double[3];
subsub_geom.GetPoint(ptnum, ogrPt);
Point3d pt3D = new Point3d(ogrPt[0], ogrPt[1], ogrPt[2]);
pt3D.Transform(Heron.Convert.WGSToXYZTransform());
gset.Append(new GH_Point(pt3D), new GH_Path(i, iLayer, m, gi, n));
///Loop through geometry points for User SRS
double[] ogrPtUser = new double[3];
subsub_geomUser.GetPoint(ptnum, ogrPtUser);
Point3d pt3DUser = new Point3d(ogrPtUser[0], ogrPtUser[1], ogrPtUser[2]);
pt3DUser.Transform(userSRSToModelTransform);
gsetUser.Append(new GH_Point(pt3DUser), new GH_Path(i, iLayer, m, gi, n));
///End loop through geometry points
}
subsub_geom.Dispose();
subsub_geomUser.Dispose();
}
}
else
{
for (int ptnum = 0; ptnum < sub_geom.GetPointCount(); ptnum++)
{
///Loop through geometry points
double[] ogrPt = new double[3];
sub_geom.GetPoint(ptnum, ogrPt);
Point3d pt3D = new Point3d(ogrPt[0], ogrPt[1], ogrPt[2]);
pt3D.Transform(Heron.Convert.WGSToXYZTransform());
gset.Append(new GH_Point(pt3D), new GH_Path(i, iLayer, m, gi));
///Loop through geometry points for User SRS
double[] ogrPtUser = new double[3];
sub_geomUser.GetPoint(ptnum, ogrPtUser);
Point3d pt3DUser = new Point3d(ogrPtUser[0], ogrPtUser[1], ogrPtUser[2]);
pt3DUser.Transform(userSRSToModelTransform);
gsetUser.Append(new GH_Point(pt3DUser), new GH_Path(i, iLayer, m, gi));
///End loop through geometry points
}
}
sub_geom.Dispose();
sub_geomUser.Dispose();
/// Get Feature Values
if (fset.PathExists(new GH_Path(i, iLayer, m)))
{
fset.get_Branch(new GH_Path(i, iLayer, m)).Clear();
}
for (int iField = 0; iField < feat.GetFieldCount(); iField++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iField);
if (feat.IsFieldSet(iField))
{
fset.Append(new GH_String(feat.GetFieldAsString(iField)), new GH_Path(i, iLayer, m));
}
else
{
fset.Append(new GH_String("null"), new GH_Path(i, iLayer, m));
}
}
///End Get Feature Values
}
//m++;
}
m++;
geom.Dispose();
geomUser.Dispose();
feat.Dispose();
} ///end while loop through features
} ///end clipped layer else statement
} ///end loop through boundaries
layer.Dispose();
}///end loop through layers
dataSource.Dispose();
DA.SetDataTree(0, recs);
DA.SetDataTree(1, spatialReferences);
DA.SetDataTree(2, fnames);
DA.SetDataTree(3, fset);
DA.SetDataTree(4, gset);
DA.SetDataTree(5, gsetUser);
DA.SetDataTree(6, recsUser);
DA.SetDataTree(7, gGoo);
DA.SetDataTree(8, gtype);
}
public static bool CovertRegion2Line(string path, string savePath)
{
try
{
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
if (dr == null)
{
Console.WriteLine("启动驱动失败！\n");
}
OSGeo.OGR.DataSource ds = dr.Open(path, 0);
int layerCount = ds.GetLayerCount();
OSGeo.OGR.Layer layer = ds.GetLayerByIndex(0);
FeatureDefn fdf = layer.GetLayerDefn();
int fieldCount = fdf.GetFieldCount();
// 创建数据源
DataSource oDS = dr.CreateDataSource(savePath, null);
if (oDS == null)
{
Console.WriteLine("创建矢量文件【%s】失败！\n", savePath);
return(false);
}
OSGeo.OSR.SpatialReference srs = layer.GetSpatialRef();
// 创建图层，创建一个多边形图层，这里没有指定空间参考，如果需要的话，需要在这里进行指定
Layer oLayer = oDS.CreateLayer("line", srs, OSGeo.OGR.wkbGeometryType.wkbMultiLineString, null);
if (oLayer == null)
{
Console.WriteLine("图层创建失败！\n");
return(false);
}
for (int i = 0; i < fieldCount; i++)
{
FieldDefn fieldDefn = fdf.GetFieldDefn(i);
oLayer.CreateField(fieldDefn, 1);
}
FeatureDefn oDefn = oLayer.GetLayerDefn();
OSGeo.OGR.Feature feat;
while ((feat = layer.GetNextFeature()) != null)
{
Feature oFeatureMulty = new Feature(oDefn);
OSGeo.OGR.Geometry geometry = feat.GetGeometryRef();
for (int i = 0; i < fieldCount; i++)
{
string value = feat.GetFieldAsString(i);
oFeatureMulty.SetField(i, value);
}
OSGeo.OGR.wkbGeometryType goetype = geometry.GetGeometryType();
if (goetype == OSGeo.OGR.wkbGeometryType.wkbPolygon)
{
Geometry tempGeo = new Geometry(wkbGeometryType.wkbMultiLineString);
int count = geometry.GetGeometryCount();
for (int j = 0; j < count; j++)
{
Geometry line = new Geometry(wkbGeometryType.wkbLinearRing);
Geometry geo = geometry.GetGeometryRef(j);
for (int i = 0; i < geo.GetPointCount(); i++)
{
double x = geo.GetX(i);
double y = geo.GetY(i);
line.AddPoint(x, y, 0);
}
tempGeo.AddGeometryDirectly(line);
}
oFeatureMulty.SetGeometry(tempGeo);
}
oLayer.SetFeature(oFeatureMulty);
}
oLayer.Dispose();
layer.Dispose();
oDS.Dispose();
ds.Dispose();
dr.Dispose();
}
catch
{ }
return(false);
}
/// <summary>
/// 转换并纠偏，只使用与火星坐标纠偏
/// </summary>
/// <param name="dataTable">数据表，如果是点表中含X,Y字段，如果是线和面，表中含有PATH字段</param>
/// <param name="filePath">存储路径</param>
/// <param name="geoType">数据类型，暂时支持简单的点线面</param>
//public static void saveShpFile(DataTable dataTable,string filePath,wkbGeometryType geoType)
//{
// saveShpFile(dataTable, filePath, geoType, ProjectConvert.GCJ_WGS);
//}
/// <summary>
/// 导出shp数据到表格
/// </summary>
/// <param name="path">文件路径</param>
/// <returns>DataTable</returns>
public static DataTable GetData(string path)
{
try
{
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
if (dr == null)
{
Console.WriteLine("启动驱动失败！\n");
}
OSGeo.OGR.DataSource ds = dr.Open(path, 0);
int layerCount = ds.GetLayerCount();
OSGeo.OGR.Layer layer = ds.GetLayerByIndex(0);
DataTable dataTable = new DataTable();
FeatureDefn fdf = layer.GetLayerDefn();
int fieldCount = fdf.GetFieldCount();
for (int i = 0; i < fieldCount; i++)
{
dataTable.Columns.Add(fdf.GetFieldDefn(i).GetName(), Type.GetType("System.String"));
}
if (fdf.GetGeomType() == OSGeo.OGR.wkbGeometryType.wkbPoint)
{
if (!dataTable.Columns.Contains("X"))
{
dataTable.Columns.Add("X", Type.GetType("System.String"));
}
if (!dataTable.Columns.Contains("Y"))
{
dataTable.Columns.Add("Y", Type.GetType("System.String"));
}
}
else if (fdf.GetGeomType() == OSGeo.OGR.wkbGeometryType.wkbPolygon || fdf.GetGeomType() == OSGeo.OGR.wkbGeometryType.wkbLineString)
{
if (!dataTable.Columns.Contains("PATH"))
{
dataTable.Columns.Add("PATH", Type.GetType("System.String"));
}
}
OSGeo.OGR.Feature feat;
while ((feat = layer.GetNextFeature()) != null)
{
DataRow row = dataTable.NewRow();
OSGeo.OGR.Geometry geometry = feat.GetGeometryRef();
for (int i = 0; i < fieldCount; i++)
{
string value = feat.GetFieldAsString(i);
row[i] = value.Replace(",", "");
}
OSGeo.OGR.wkbGeometryType goetype = geometry.GetGeometryType();
if (goetype == OSGeo.OGR.wkbGeometryType.wkbPoint)
{
double x = geometry.GetX(0);
double y = geometry.GetY(0);
row["X"] = x.ToString();
row["Y"] = y.ToString();
}
else if (goetype == OSGeo.OGR.wkbGeometryType.wkbLineString)
{
string points = "";
for (int i = 0; i < geometry.GetPointCount(); i++)
{
double x = geometry.GetX(i);
double y = geometry.GetY(i);
points += x.ToString() + "|" + y.ToString() + ";";
}
if (points != "")
{
points.Substring(0, points.Length - 1);
}
row["PATH"] = points;
}
else if (goetype == OSGeo.OGR.wkbGeometryType.wkbPolygon)
{
int count = geometry.GetGeometryCount();
string points = "";
for (int j = 0; j < count; j++)
{
Geometry geo = geometry.GetGeometryRef(j);
for (int i = 0; i < geo.GetPointCount(); i++)
{
double x = geo.GetX(i);
double y = geo.GetY(i);
points += x.ToString() + "|" + y.ToString() + ";";
}
if (points != "")
{
points.Substring(0, points.Length - 1);
}
points += "|";
}
if (points != "")
{
points.Substring(0, points.Length - 1);
}
row["PATH"] = points;
}
}
layer.Dispose();
ds.Dispose();
dr.Dispose();
return(dataTable);
}
catch
{
return(null);
}
}
/// <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)
{
Curve boundary = null;
DA.GetData <Curve>(0, ref boundary);
int zoom = -1;
DA.GetData <int>(1, ref zoom);
string filePath = string.Empty;
DA.GetData <string>(2, ref filePath);
if (!filePath.EndsWith(@"\"))
{
filePath = filePath + @"\";
}
string prefix = string.Empty;
DA.GetData <string>(3, ref prefix);
if (prefix == "")
{
prefix = mbSource;
}
string URL = mbURL;
string mbToken = string.Empty;
DA.GetData <string>(4, ref mbToken);
if (mbToken == "")
{
string hmbToken = System.Environment.GetEnvironmentVariable("HERONMAPBOXTOKEN");
if (hmbToken != null)
{
mbToken = hmbToken;
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Using Mapbox token stored in Environment Variable HERONMAPBOXTOKEN.");
}
else
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Error, "No Mapbox token is specified. Please get a valid token from mapbox.com");
return;
}
}
bool run = false;
DA.GetData <bool>("Run", ref run);
///GDAL setup
RESTful.GdalConfiguration.ConfigureOgr();
OSGeo.OGR.Ogr.RegisterAll();
RESTful.GdalConfiguration.ConfigureGdal();
GH_Curve imgFrame;
GH_String tCount;
GH_Structure <GH_String> fnames = new GH_Structure <GH_String>();
GH_Structure <GH_String> fvalues = new GH_Structure <GH_String>();
GH_Structure <IGH_GeometricGoo> gGoo = new GH_Structure <IGH_GeometricGoo>();
GH_Structure <GH_String> gtype = new GH_Structure <GH_String>();
GH_Structure <IGH_GeometricGoo> gGooBuildings = new GH_Structure <IGH_GeometricGoo>();
int tileTotalCount = 0;
int tileDownloadedCount = 0;
///Get image frame for given boundary
if (!boundary.GetBoundingBox(true).IsValid)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Boundary is not valid.");
return;
}
BoundingBox boundaryBox = boundary.GetBoundingBox(true);
//create cache folder for vector tiles
string cacheLoc = filePath + @"HeronCache\";
List <string> cachefilePaths = new List <string>();
if (!Directory.Exists(cacheLoc))
{
Directory.CreateDirectory(cacheLoc);
}
//tile bounding box array
List <Point3d> boxPtList = new List <Point3d>();
//get the tile coordinates for all tiles within boundary
var ranges = Convert.GetTileRange(boundaryBox, zoom);
var x_range = ranges.XRange;
var y_range = ranges.YRange;
if (x_range.Length > 100 || y_range.Length > 100)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Error, "This tile range is too big (more than 100 tiles in the x or y direction). Check your units.");
return;
}
///cycle through tiles to get bounding box
List <Polyline> tileExtents = new List <Polyline>();
List <double> tileHeight = new List <double>();
List <double> tileWidth = new List <double>();
for (int y = (int)y_range.Min; y <= y_range.Max; y++)
{
for (int x = (int)x_range.Min; x <= x_range.Max; x++)
{
//add bounding box of tile to list for translation
Polyline tileExtent = Heron.Convert.GetTileAsPolygon(zoom, y, x);
tileExtents.Add(tileExtent);
tileWidth.Add(tileExtent[0].DistanceTo(tileExtent[1]));
tileHeight.Add(tileExtent[1].DistanceTo(tileExtent[2]));
boxPtList.AddRange(tileExtent.ToList());
cachefilePaths.Add(cacheLoc + mbSource.Replace(" ", "") + zoom + "-" + x + "-" + y + ".mvt");
tileTotalCount = tileTotalCount + 1;
}
}
tCount = new GH_String(tileTotalCount + " tiles (" + tileDownloadedCount + " downloaded / " + (tileTotalCount - tileDownloadedCount) + " cached)");
///bounding box of tile boundaries
BoundingBox bboxPts = new BoundingBox(boxPtList);
///convert bounding box to polyline
List <Point3d> imageCorners = bboxPts.GetCorners().ToList();
imageCorners.Add(imageCorners[0]);
imgFrame = new GH_Curve(new Rhino.Geometry.Polyline(imageCorners).ToNurbsCurve());
///tile range as string for (de)serialization of TileCacheMeta
string tileRangeString = "Tile range for zoom " + zoom.ToString() + ": "
+ x_range[0].ToString() + "-"
+ y_range[0].ToString() + " to "
+ x_range[1].ToString() + "-"
+ y_range[1].ToString();
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, tileRangeString);
///Query Mapbox URL
///download all tiles within boundary
///API to query
string mbURLauth = mbURL + mbToken;
if (run == true)
{
for (int y = (int)y_range.Min; y <= (int)y_range.Max; y++)
{
for (int x = (int)x_range.Min; x <= (int)x_range.Max; x++)
{
//create tileCache name
string tileCache = mbSource.Replace(" ", "") + zoom + "-" + x + "-" + y + ".mvt";
string tileCacheLoc = cacheLoc + tileCache;
//check cache folder to see if tile image exists locally
if (File.Exists(tileCacheLoc))
{
}
else
{
string urlAuth = Heron.Convert.GetZoomURL(x, y, zoom, mbURLauth);
System.Net.WebClient client = new System.Net.WebClient();
client.DownloadFile(urlAuth, tileCacheLoc);
client.Dispose();
///https://gdal.org/development/rfc/rfc59.1_utilities_as_a_library.html
///http://osgeo-org.1560.x6.nabble.com/gdal-dev-How-to-convert-shapefile-to-geojson-using-c-bindings-td5390953.html#a5391028
///ogr2ogr is slow
//OSGeo.GDAL.Dataset httpDS = OSGeo.GDAL.Gdal.OpenEx("MVT:"+urlAuth,4,null,null,null);
//var transOptions = new OSGeo.GDAL.GDALVectorTranslateOptions(new[] { "-s_srs","EPSG:3857", "-t_srs", "EPSG:4326","-skipfailures" });
//var transDS = OSGeo.GDAL.Gdal.wrapper_GDALVectorTranslateDestName(mvtLoc + zoom + "-" + x + "-" + y , httpDS, transOptions, null, null);
//httpDS.Dispose();
//transDS.Dispose();
tileDownloadedCount = tileDownloadedCount + 1;
}
}
}
}
//add to tile count total
tCount = new GH_String(tileTotalCount + " tiles (" + tileDownloadedCount + " downloaded / " + (tileTotalCount - tileDownloadedCount) + " cached)");
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, tCount.ToString());
///Build a VRT file
///https://stackoverflow.com/questions/55386597/gdal-c-sharp-wrapper-for-vrt-doesnt-write-a-vrt-file
//string vrtFile = cacheLoc + "mapboxvector.vrt";
//AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, vrtFile);
//var vrtOptions = new OSGeo.GDAL.GDALBuildVRTOptions(new[] { "-overwrite" });
//var vrtDataset = OSGeo.GDAL.Gdal.wrapper_GDALBuildVRT_names(vrtFile, cachefilePaths.ToArray(), vrtOptions, null, null);
//vrtDataset.Dispose();
///Set transform from input spatial reference to Rhino spatial reference
///TODO: look into adding a step for transforming to CRS set in SetCRS
OSGeo.OSR.SpatialReference rhinoSRS = new OSGeo.OSR.SpatialReference("");
rhinoSRS.SetWellKnownGeogCS("WGS84");
///TODO: verify the userSRS is valid
///TODO: use this as override of global SetSRS
OSGeo.OSR.SpatialReference userSRS = new OSGeo.OSR.SpatialReference("");
//userSRS.SetFromUserInput(userSRStext);
userSRS.SetFromUserInput("WGS84");
OSGeo.OSR.SpatialReference sourceSRS = new SpatialReference("");
sourceSRS.SetFromUserInput("EPSG:3857");
///These transforms move and scale in order to go from userSRS to XYZ and vice versa
Transform userSRSToModelTransform = Heron.Convert.GetUserSRSToModelTransform(userSRS);
Transform modelToUserSRSTransform = Heron.Convert.GetModelToUserSRSTransform(userSRS);
Transform sourceToModelSRSTransform = Heron.Convert.GetUserSRSToModelTransform(sourceSRS);
Transform modelToSourceSRSTransform = Heron.Convert.GetModelToUserSRSTransform(sourceSRS);
//OSGeo.GDAL.Driver gdalOGR = OSGeo.GDAL.Gdal.GetDriverByName("VRT");
//var ds = OSGeo.GDAL.Gdal.OpenEx(vrtFile, 4, ["VRT","MVT"], null, null);
int t = 0;
foreach (string mvtTile in cachefilePaths)// cachefilePaths)
{
OSGeo.OGR.Driver drv = OSGeo.OGR.Ogr.GetDriverByName("MVT");
OSGeo.OGR.DataSource ds = OSGeo.OGR.Ogr.Open("MVT:" + mvtTile, 0);
string[] mvtOptions = new[] { "CLIP", "NO" };
//OSGeo.OGR.DataSource ds = drv.Open(mvtTile, 0);
if (ds == 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;
}
///Morph raw mapbox tile points to geolocated tile
Vector3d moveDir = tileExtents[t].ElementAt(0) - new Point3d(0, 0, 0);
Transform move = Transform.Translation(moveDir);
Transform scale = Transform.Scale(Plane.WorldXY, tileWidth[t] / 4096, tileHeight[t] / 4096, 1);
Transform scaleMove = Transform.Multiply(move, scale);
for (int iLayer = 0; iLayer < ds.GetLayerCount(); iLayer++)
{
OSGeo.OGR.Layer layer = ds.GetLayerByIndex(iLayer);
long count = layer.GetFeatureCount(1);
int featureCount = System.Convert.ToInt32(count);
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Layer #" + iLayer + " " + layer.GetName() + " has " + featureCount + " features");
//if (layer.GetName() == "admin" || layer.GetName() == "building")
//{
OSGeo.OGR.FeatureDefn def = layer.GetLayerDefn();
///Get the field names
List <string> fieldnames = new List <string>();
for (int iAttr = 0; iAttr < def.GetFieldCount(); iAttr++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iAttr);
fnames.Append(new GH_String(fdef.GetNameRef()), new GH_Path(iLayer, t));
}
///Loop through geometry
OSGeo.OGR.Feature feat;
int m = 0;
///error "Self-intersection at or near point..." when zoom gets below 12 for water
///this is an issue with the way mvt simplifies geometries at lower zoom levels and is a known problem
///TODO: look into how to fix invalid geom and return to the typical while loop iterating method
//while ((feat = layer.GetNextFeature()) != null)
while (true)
{
try
{
feat = layer.GetNextFeature();
}
catch
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Some features had invalid geometry and were skipped.");
continue;
}
if (feat == null)
{
break;
}
OSGeo.OGR.Geometry geom = feat.GetGeometryRef();
///reproject geometry to WGS84 and userSRS
///TODO: look into using the SetCRS global variable here
gtype.Append(new GH_String(geom.GetGeometryName()), new GH_Path(iLayer, t, m));
Transform tr = scaleMove; // new Transform(1);
if (feat.GetGeometryRef() != null)
{
///Convert GDAL geometries to IGH_GeometricGoo
foreach (IGH_GeometricGoo gMorphed in Heron.Convert.OgrGeomToGHGoo(geom, tr))
{
//gMorphed.Morph(morph);
gGoo.Append(gMorphed, new GH_Path(iLayer, t, m));
}
if (layer.GetName() == "building")
{
if (feat.GetFieldAsString(def.GetFieldIndex("extrude")) == "true")
{
double unitsConversion = Rhino.RhinoMath.UnitScale(Rhino.RhinoDoc.ActiveDoc.ModelUnitSystem, Rhino.UnitSystem.Meters);
double height = System.Convert.ToDouble(feat.GetFieldAsString(def.GetFieldIndex("height"))) / unitsConversion;
double min_height = System.Convert.ToDouble(feat.GetFieldAsString(def.GetFieldIndex("min_height"))) / unitsConversion;
bool underground = System.Convert.ToBoolean(feat.GetFieldAsString(def.GetFieldIndex("underground")));
if (geom.GetGeometryType() == wkbGeometryType.wkbPolygon)
{
Extrusion bldg = Heron.Convert.OgrPolygonToExtrusion(geom, tr, height, min_height, underground);
IGH_GeometricGoo bldgGoo = GH_Convert.ToGeometricGoo(bldg);
gGooBuildings.Append(bldgGoo, new GH_Path(iLayer, t, m));
}
if (geom.GetGeometryType() == wkbGeometryType.wkbMultiPolygon)
{
List <Extrusion> bldgs = Heron.Convert.OgrMultiPolyToExtrusions(geom, tr, height, min_height, underground);
foreach (Extrusion bldg in bldgs)
{
IGH_GeometricGoo bldgGoo = GH_Convert.ToGeometricGoo(bldg);
gGooBuildings.Append(bldgGoo, new GH_Path(iLayer, t, m));
}
}
}
}
/// Get Feature Values
if (fvalues.PathExists(new GH_Path(iLayer, t, m)))
{
//fvalues.get_Branch(new GH_Path(iLayer, t, m)).Clear();
}
for (int iField = 0; iField < feat.GetFieldCount(); iField++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iField);
if (feat.IsFieldSet(iField))
{
fvalues.Append(new GH_String(feat.GetFieldAsString(iField)), new GH_Path(iLayer, t, m));
}
else
{
fvalues.Append(new GH_String("null"), new GH_Path(iLayer, t, m));
}
}
}
m++;
geom.Dispose();
feat.Dispose();
}///end while loop through features
//}///end layer by name
layer.Dispose();
}///end loop through layers
ds.Dispose();
t++;
}///end loop through mvt tiles
//write out new tile range metadata for serialization
TileCacheMeta = tileRangeString;
DA.SetData(0, imgFrame);
DA.SetDataTree(1, fnames);
DA.SetDataTree(2, fvalues);
DA.SetDataTree(3, gGoo);
DA.SetDataList(4, "copyright Mapbox");
DA.SetDataTree(5, gtype);
DA.SetDataTree(6, gGooBuildings);
DA.SetDataList(7, tileExtents);
}
protected override void SolveInstance(IGH_DataAccess DA)
{
List <Curve> boundary = new List <Curve>();
DA.GetDataList <Curve>(0, boundary);
string shpFileLoc = "";
DA.GetData <string>("Vector Data Location", ref shpFileLoc);
///GDAL setup
///Some preliminary testing has been done to read SHP, GeoJSON, OSM, KML, MVT, GML and GDB
///It can be spotty with KML, MVT and GML and doesn't throw informative errors. Likely has to do with getting a valid CRS and
///TODO: resolve errors with reading KML, MVT, GML.
RESTful.GdalConfiguration.ConfigureOgr();
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver drv = OSGeo.OGR.Ogr.GetDriverByName("ESRI Shapefile");
OSGeo.OGR.DataSource ds = OSGeo.OGR.Ogr.Open(shpFileLoc, 0);
if (ds == 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;
}
List <OSGeo.OGR.Layer> layerset = new List <OSGeo.OGR.Layer>();
List <int> fc = new List <int>();
for (int iLayer = 0; iLayer < ds.GetLayerCount(); iLayer++)
{
OSGeo.OGR.Layer layer = ds.GetLayerByIndex(iLayer);
if (layer == null)
{
Console.WriteLine("Couldn't fetch advertised layer " + iLayer);
System.Environment.Exit(-1);
}
else
{
layerset.Add(layer);
}
}
///Declare trees
GH_Structure <GH_String> layname = new GH_Structure <GH_String>();
GH_Structure <GH_Integer> fcs = new GH_Structure <GH_Integer>();
GH_Structure <GH_Rectangle> recs = new GH_Structure <GH_Rectangle>();
GH_Structure <GH_String> sRefs = new GH_Structure <GH_String>();
GH_Structure <GH_String> fnames = new GH_Structure <GH_String>();
GH_Structure <GH_String> fset = new GH_Structure <GH_String>();
GH_Structure <GH_Point> gset = new GH_Structure <GH_Point>();
///Loop through each layer. Layers usually occur in Geodatabase GDB format. SHP usually has only one layer.
for (int iLayer = 0; iLayer < ds.GetLayerCount(); iLayer++)
{
OSGeo.OGR.Layer layer = ds.GetLayerByIndex(iLayer);
if (layer == null)
{
Console.WriteLine("Couldn't fetch advertised layer " + iLayer);
System.Environment.Exit(-1);
}
long count = layer.GetFeatureCount(1);
int featureCount = System.Convert.ToInt32(count);
fcs.Append(new GH_Integer(featureCount), new GH_Path(iLayer));
layname.Append(new GH_String(layer.GetName()), new GH_Path(iLayer));
///Get OGR envelope of the data in the layer
OSGeo.OGR.Envelope ext = new OSGeo.OGR.Envelope();
layer.GetExtent(ext, 1);
Point3d extMin = new Point3d();
Point3d extMax = new Point3d();
extMin.X = ext.MinX;
extMin.Y = ext.MinY;
extMax.X = ext.MaxX;
extMax.Y = ext.MaxY;
///Get the spatial reference of the input vector file and set to WGS84 if not known
OSGeo.OSR.SpatialReference sr = new SpatialReference(Osr.SRS_WKT_WGS84);
string sRef = "";
if (layer.GetSpatialRef() == null)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Coordinate Reference System (CRS) is missing. CRS set automatically set to WGS84.");
sr.ImportFromXML(shpFileLoc);
string pretty = "";
sr.ExportToPrettyWkt(out pretty, 0);
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, pretty);
sr.SetWellKnownGeogCS("WGS84");
sRef = "Coordinate Reference System (CRS) is missing. CRS set automatically set to WGS84.";
//sr.ImportFromEPSG(2263);
}
else
{
if (layer.GetSpatialRef().Validate() != 0)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Coordinate Reference System (CRS) is unknown or unsupported. CRS set automatically set to WGS84.");
sr.SetWellKnownGeogCS("WGS84");
sRef = "Coordinate Reference System (CRS) is unknown or unsupported. SRS set automatically set to WGS84.";
}
else
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Remark, "Coordinate Reference System (CRS) set from layer" + iLayer + ".");
sr = layer.GetSpatialRef();
sr.ExportToWkt(out sRef);
}
}
sRefs.Append(new GH_String(sRef), new GH_Path(iLayer));
///Set transform from input spatial reference to Rhino spatial reference
///TODO: look into adding a step for transforming to CRS set in SetCRS
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);
///Get bounding box of data in layer
double[] extMinPT = new double[3] {
extMin.X, extMin.Y, extMin.Z
};
double[] extMaxPT = new double[3] {
extMax.X, extMax.Y, extMax.Z
};
coordTransform.TransformPoint(extMinPT);
coordTransform.TransformPoint(extMaxPT);
Point3d extPTmin = new Point3d(extMinPT[0], extMinPT[1], extMinPT[2]);
Point3d extPTmax = new Point3d(extMaxPT[0], extMaxPT[1], extMaxPT[2]);
Rectangle3d rec = new Rectangle3d(Plane.WorldXY, Heron.Convert.ToXYZ(extPTmin), Heron.Convert.ToXYZ(extPTmax));
recs.Append(new GH_Rectangle(rec), new GH_Path(iLayer));
///Loop through input boundaries
for (int i = 0; i < boundary.Count; i++)
{
OSGeo.OGR.FeatureDefn def = layer.GetLayerDefn();
///Get the field names
List <string> fieldnames = new List <string>();
for (int iAttr = 0; iAttr < def.GetFieldCount(); iAttr++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iAttr);
fnames.Append(new GH_String(fdef.GetNameRef()), new GH_Path(i, iLayer));
}
///Check if boundary is contained in extent
if (!rec.IsValid || ((rec.Height == 0) && (rec.Width == 0)))
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "One or more vector datasource bounds are not valid.");
OSGeo.OGR.Feature feat;
int m = 0;
while ((feat = layer.GetNextFeature()) != null)
{
///Loop through field values
for (int iField = 0; iField < feat.GetFieldCount(); iField++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iField);
fset.Append(new GH_String(feat.GetFieldAsString(iField)), new GH_Path(i, iLayer, m));
fdef.Dispose();
}
m++;
feat.Dispose();
}
}
else if (boundary[i] == null)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Clipping boundary " + i + " not set.");
}
else if (!boundary[i].IsValid)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Clipping boundary " + i + " is not valid.");
}
else if (rec.IsValid && Curve.PlanarClosedCurveRelationship(rec.ToNurbsCurve(), boundary[i], Plane.WorldXY, Rhino.RhinoDoc.ActiveDoc.ModelAbsoluteTolerance) == RegionContainment.Disjoint)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "One or more boundaries may be outside the bounds of the vector datasource.");
}
else
{
///Create bounding box for clipping geometry
Point3d min = Heron.Convert.ToWGS(boundary[i].GetBoundingBox(true).Min);
Point3d max = Heron.Convert.ToWGS(boundary[i].GetBoundingBox(true).Max);
double[] minpT = new double[3];
double[] maxpT = new double[3];
minpT[0] = min.X;
minpT[1] = min.Y;
minpT[2] = min.Z;
maxpT[0] = max.X;
maxpT[1] = max.Y;
maxpT[2] = max.Z;
revTransform.TransformPoint(minpT);
revTransform.TransformPoint(maxpT);
///Convert to OGR geometry
///TODO: add conversion from GH geometry to OGR to Convert class
OSGeo.OGR.Geometry ebbox = OSGeo.OGR.Geometry.CreateFromWkt("POLYGON((" + minpT[0] + " " + minpT[1] + ", " + minpT[0] + " " + maxpT[1] + ", " + maxpT[0] + " " + maxpT[1] + ", " + maxpT[0] + " " + minpT[1] + ", " + minpT[0] + " " + minpT[1] + "))");
///Clip Shapefile
///http://pcjericks.github.io/py-gdalogr-cookbook/vector_layers.html
///TODO: allow for polyline/curve as clipper, not just bounding box
OSGeo.OGR.Layer clipped_layer = layer;
clipped_layer.SetSpatialFilter(ebbox);
///Loop through geometry
OSGeo.OGR.Feature feat;
def = clipped_layer.GetLayerDefn();
int m = 0;
while ((feat = clipped_layer.GetNextFeature()) != null)
{
OSGeo.OGR.Geometry geom = feat.GetGeometryRef();
OSGeo.OGR.Geometry sub_geom;
///reproject geometry to WGS84
///TODO: look into using the SetCRS global variable here
geom.Transform(coordTransform);
if (feat.GetGeometryRef() != null)
{
///Start get points if open polylines and points
for (int gpc = 0; gpc < geom.GetPointCount(); gpc++)
{
///Loop through geometry points
double[] pT = new double[3];
pT[0] = geom.GetX(gpc);
pT[1] = geom.GetY(gpc);
pT[2] = geom.GetZ(gpc);
if (Double.IsNaN(geom.GetZ(gpc)))
{
pT[2] = 0;
}
//coordTransform.TransformPoint(pT);
Point3d pt3D = new Point3d();
pt3D.X = pT[0];
pt3D.Y = pT[1];
pt3D.Z = pT[2];
gset.Append(new GH_Point(Heron.Convert.ToXYZ(pt3D)), new GH_Path(i, iLayer, m));
///End loop through geometry points
/// Get Feature Values
if (fset.PathExists(new GH_Path(i, iLayer, m)))
{
fset.get_Branch(new GH_Path(i, iLayer, m)).Clear();
}
for (int iField = 0; iField < feat.GetFieldCount(); iField++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iField);
if (feat.IsFieldSet(iField))
{
fset.Append(new GH_String(feat.GetFieldAsString(iField)), new GH_Path(i, iLayer, m));
}
else
{
fset.Append(new GH_String("null"), new GH_Path(i, iLayer, m));
}
}
///End Get Feature Values
}
///End getting points if open polylines or points
///Start getting points if closed polylines and multipolygons
for (int gi = 0; gi < geom.GetGeometryCount(); gi++)
{
sub_geom = geom.GetGeometryRef(gi);
OSGeo.OGR.Geometry subsub_geom;
List <Point3d> geom_list = new List <Point3d>();
///trouble getting all points. this is a troubleshoot
///gset.Append(new GH_Point(new Point3d(0, 0, sub_geom.GetGeometryCount())), new GH_Path(i, iLayer, m, gi));
if (sub_geom.GetGeometryCount() > 0)
{
for (int n = 0; n < sub_geom.GetGeometryCount(); n++)
{
subsub_geom = sub_geom.GetGeometryRef(n);
for (int ptnum = 0; ptnum < subsub_geom.GetPointCount(); ptnum++)
{
///Loop through geometry points
double[] pT = new double[3];
pT[0] = subsub_geom.GetX(ptnum);
pT[1] = subsub_geom.GetY(ptnum);
pT[2] = subsub_geom.GetZ(ptnum);
Point3d pt3D = new Point3d();
pt3D.X = pT[0];
pt3D.Y = pT[1];
pt3D.Z = pT[2];
gset.Append(new GH_Point(Heron.Convert.ToXYZ(pt3D)), new GH_Path(i, iLayer, m, gi, n));
///End loop through geometry points
}
subsub_geom.Dispose();
}
}
else
{
for (int ptnum = 0; ptnum < sub_geom.GetPointCount(); ptnum++)
{
///Loop through geometry points
double[] pT = new double[3];
pT[0] = sub_geom.GetX(ptnum);
pT[1] = sub_geom.GetY(ptnum);
pT[2] = sub_geom.GetZ(ptnum);
Point3d pt3D = new Point3d();
pt3D.X = pT[0];
pt3D.Y = pT[1];
pt3D.Z = pT[2];
gset.Append(new GH_Point(Heron.Convert.ToXYZ(pt3D)), new GH_Path(i, iLayer, m, gi));
///End loop through geometry points
}
}
sub_geom.Dispose();
/// Get Feature Values
if (fset.PathExists(new GH_Path(i, iLayer, m)))
{
fset.get_Branch(new GH_Path(i, iLayer, m)).Clear();
}
for (int iField = 0; iField < feat.GetFieldCount(); iField++)
{
OSGeo.OGR.FieldDefn fdef = def.GetFieldDefn(iField);
if (feat.IsFieldSet(iField))
{
fset.Append(new GH_String(feat.GetFieldAsString(iField)), new GH_Path(i, iLayer, m));
}
else
{
fset.Append(new GH_String("null"), new GH_Path(i, iLayer, m));
}
}
///End Get Feature Values
}
//m++;
}
m++;
feat.Dispose();
} ///end while loop through features
}
} //end loop through boundaries
layer.Dispose();
}///end loop through layers
ds.Dispose();
DA.SetDataTree(0, layname);
DA.SetDataTree(1, fcs);
DA.SetDataTree(2, recs);
DA.SetDataTree(3, sRefs);
DA.SetDataTree(4, fnames);
DA.SetDataTree(5, fset);
DA.SetDataTree(6, gset);
}
public static void ReportLayer(Layer layer)
{
FeatureDefn def = layer.GetLayerDefn();
Console.WriteLine( "Layer name: " + def.GetName() );
Console.WriteLine( "Feature Count: " + layer.GetFeatureCount(1) );
Envelope ext = new Envelope();
layer.GetExtent(ext, 1);
Console.WriteLine( "Extent: " + ext.MinX + "," + ext.MaxX + "," +
ext.MinY + "," + ext.MaxY);
/* -------------------------------------------------------------------- */
/* Reading the spatial reference */
/* -------------------------------------------------------------------- */
OSGeo.OSR.SpatialReference sr = layer.GetSpatialRef();
string srs_wkt;
if ( sr != null )
{
sr.ExportToPrettyWkt( out srs_wkt, 1 );
}
else
srs_wkt = "(unknown)";
Console.WriteLine( "Layer SRS WKT: " + srs_wkt );
/* -------------------------------------------------------------------- */
/* Reading the fields */
/* -------------------------------------------------------------------- */
Console.WriteLine("Field definition:");
for( int iAttr = 0; iAttr < def.GetFieldCount(); iAttr++ )
{
FieldDefn fdef = def.GetFieldDefn( iAttr );
Console.WriteLine( fdef.GetNameRef() + ": " +
fdef.GetFieldTypeName( fdef.GetFieldType() ) + " (" +
fdef.GetWidth() + "." +
fdef.GetPrecision() + ")");
}
/* -------------------------------------------------------------------- */
/* Reading the shapes */
/* -------------------------------------------------------------------- */
Console.WriteLine( "" );
Feature feat;
while( (feat = layer.GetNextFeature()) != null )
{
ReportFeature(feat, def);
feat.Dispose();
}
}
public override void DoWork(Action <string, double> ReportProgress, Action Done)
{
// Checking for cancellation
if (CancellationToken.IsCancellationRequested)
{
return;
}
///Make sure there's an API key
string mbToken = ApiKey;
if (mbToken == "")
{
string hmbToken = System.Environment.GetEnvironmentVariable("HERONMAPBOXTOKEN");
if (hmbToken != null)
{
mbToken = hmbToken;
RuntimeMessages.Add((GH_RuntimeMessageLevel.Remark, "Using Mapbox token stored in Environment Variable HERONMAPBOXTOKEN."));
}
else
{
RuntimeMessages.Add((GH_RuntimeMessageLevel.Error, "No Mapbox token is specified. Please get a valid token from mapbox.com"));
return;
}
}
///GDAL setup
RESTful.GdalConfiguration.ConfigureOgr();
OSGeo.OGR.Ogr.RegisterAll();
///Set transform from input spatial reference to Rhino spatial reference
///TODO: look into adding a step for transforming to CRS set in SetCRS
OSGeo.OSR.SpatialReference rhinoSRS = new OSGeo.OSR.SpatialReference("");
rhinoSRS.SetWellKnownGeogCS("WGS84");
///TODO: verify the userSRS is valid
///TODO: use this as override of global SetSRS
OSGeo.OSR.SpatialReference userSRS = new OSGeo.OSR.SpatialReference("");
//userSRS.SetFromUserInput(userSRStext);
userSRS.SetFromUserInput("WGS84");
///Mapbox uses EPSG:3857
OSGeo.OSR.SpatialReference sourceSRS = new SpatialReference("");
sourceSRS.SetFromUserInput("EPSG:3857");
///These transforms move and scale in order to go from userSRS to XYZ and vice versa
Transform userSRSToModelTransform = Heron.Convert.GetUserSRSToModelTransform(userSRS);
Transform modelToUserSRSTransform = Heron.Convert.GetModelToUserSRSTransform(userSRS);
Transform sourceToModelSRSTransform = Heron.Convert.GetUserSRSToModelTransform(sourceSRS);
Transform modelToSourceSRSTransform = Heron.Convert.GetModelToUserSRSTransform(sourceSRS);
double lat = Heron.Convert.XYZToWGS(Location).Y;
double lon = Heron.Convert.XYZToWGS(Location).X;
///Setup contour style and unit type
string contourType = String.Empty;
double?contourNum = Contour;
if (contourNum < 0.0)
{
contourNum = 0.0;
}
double unitConversion = Rhino.RhinoMath.UnitScale(Rhino.RhinoDoc.ActiveDoc.ModelUnitSystem, Rhino.UnitSystem.Meters);
if (MapboxIsochroneSpeckle.MinutesOrMeters == "Distance")
{
contourType = "contours_meters=";
contourNum = contourNum * unitConversion;
}
else
{
contourType = "contours_minutes=";
if (contourNum > 60)
{
contourNum = 60;
RuntimeMessages.Add((GH_RuntimeMessageLevel.Warning, "Maximum minute contour is 60. Contour value reduced to 60."));
}
}
///Make sure Denoise is between 0..1
double?denoiseNum = Denoise;
if (denoiseNum < 0.0)
{
denoiseNum = 0.0;
}
if (denoiseNum > 1.0)
{
denoiseNum = 1.0;
}
///Make sure Generalize is > 0
double?generalizeNum = Generalize * unitConversion;
if (generalizeNum < 0.0)
{
generalizeNum = 0.0;
}
///Construct URL query string
string url = @"https://api.mapbox.com/isochrone/v1/mapbox/";
if (!String.IsNullOrEmpty(MapboxIsochroneSpeckle.Profile))
{
url = url + MapboxIsochroneSpeckle.Profile.ToLower() + "/";
}
if (lon > -180.0 && lon <= 180.0)
{
url = url + lon + "%2C";
}
if (lat > -90.0 && lat <= 90.0)
{
url = url + lat + "?";
}
if (!String.IsNullOrEmpty(contourType))
{
url = url + contourType.ToLower();
}
if (contourNum != null)
{
url = url + contourNum;
}
url = url + "&polygons=true";
if (denoiseNum != null)
{
url = url + "&denoise=" + denoiseNum;
}
if (generalizeNum != null)
{
url = url + "&generalize=" + generalizeNum;
}
if (mbToken != "")
{
url = url + "&access_token=" + mbToken;
}
Url = url;
if (CancellationToken.IsCancellationRequested)
{
return;
}
if (Run)
{
List <IGH_GeometricGoo> gGoo = new List <IGH_GeometricGoo>();
OSGeo.OGR.DataSource dataSource = OSGeo.OGR.Ogr.Open(url, 0);
if (dataSource == null)
{
RuntimeMessages.Add((GH_RuntimeMessageLevel.Error, "Mapbox returned an invalid response."));
return;
}
///Only interested in geometry, not fields or values
OSGeo.OGR.Layer ogrLayer = dataSource.GetLayerByIndex(0);
OSGeo.OGR.Feature feat;
while ((feat = ogrLayer.GetNextFeature()) != null)
{
OSGeo.OGR.Geometry geomUser = feat.GetGeometryRef().Clone();
///reproject geometry to WGS84 and userSRS
///TODO: look into using the SetCRS global variable here
if (geomUser.GetSpatialReference() == null)
{
geomUser.AssignSpatialReference(userSRS);
}
geomUser.TransformTo(userSRS);
if (feat.GetGeometryRef() != null)
{
gGoo.AddRange(Heron.Convert.OgrGeomToGHGoo(geomUser, userSRSToModelTransform));
}
}
Isochrones = gGoo;
}
Done();
}
private void btnTest_Click(object sender, EventArgs e)
{
Gdal.SetConfigOption("SHAPE_ENCODING", "UTF-8");
using (DataSource ds = Ogr.Open(DistrictImport.GetShapefileName(), 0))
{
using (OSGeo.OGR.Layer l = ds.GetLayerByIndex(0))
{
OSGeo.OGR.Feature f;
while (null != (f = l.GetNextFeature()))
{
this.Log(f.GetFieldAsString("NAMEARABIC"));
}
}
}
//var dlgSelectPGeo = new OpenFileDialog
//{
// Title = "Please select a Personal Geodatabase",
// Filter = "Microsoft Access database|*.accdb",
// InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop)
//};
//var dlgSelectFileGDB = new FolderBrowserDialog
//{
// RootFolder = Environment.SpecialFolder.Desktop,
// Description = "Please select an ESRI FileGeodatabasee (a folder with .gdb ending)"
//};
//if (dlgSelectFileGDB.ShowDialog() != System.Windows.Forms.DialogResult.OK)
//{
// return;
//};
//if (!dlgSelectFileGDB.SelectedPath.EndsWith(".gdb"))
//{
// Log("Selected folder does not have the correct *.gdb extension");
// return;
//}
//using (OSGeo.OGR.DataSource districtDataSource = OSGeo.OGR.Ogr.Open(dlgSelectFileGDB.SelectedPath, 0))
//{
// if (districtDataSource == null)
// {
// Log("The data source does not exist");
// }
// using (OSGeo.OGR.Layer lyr = districtDataSource.GetLayerByName("Street_name_signs"))
// {
// if (lyr == null)
// {
// Log("The layer could not be opened");
// return;
// }
// OSGeo.OGR.Feature f;
// var districtLayer = new List<OgrFeature>();
// var of = new OgrStreetNameSign();
// while (null != (f = lyr.GetNextFeature()))
// {
// of.PopulateFromOgrFeature(f);
// districtLayer.Add(of);
// Log(of.QR_CODE);
// }
// Log(districtLayer.Count);
// }
//}
//var s = new SignTestTableANS();
//Log(s.CreateStatement());
}
