private void TryExportIceLine(Feature[] features, string iceLineShpFileName)
{
double geoX, geoY = 0;
GeoDo.RSS.Core.DrawEngine.ICoordinateTransform tran = _canvas.CoordTransform;
List <Feature> fets = new List <Feature>();
int oid = 0;
foreach (Feature fet in features)
{
ShapePolyline line = fet.Geometry as ShapePolyline;
List <ShapeLineString> newLineStrings = new List <ShapeLineString>();
ShapeLineString newpart = null;
ShapePoint newPt = null;
ShapeLineString part = null;;
List <ShapePoint> newpts = new List <ShapePoint>();
for (int m = 0; m < line.Parts.Length; m++)
{
part = line.Parts[m];
for (int j = 0; j < part.Points.Length; j++)
{
ShapePoint sp = part.Points[j];
if (line.IsProjected)
{
tran.Prj2Geo(sp.X, sp.Y, out geoX, out geoY);
newPt = new ShapePoint(geoX, geoY);
}
else
{
newPt = new ShapePoint(sp.X, sp.Y);
}
newpts.Add(newPt);
}
newpart = new ShapeLineString(newpts.ToArray());
newLineStrings.Add(newpart);
}
ShapePolyline sply = new ShapePolyline(newLineStrings.ToArray());
string[] fieldvalue = new string[] { fet.FieldValues[0] };
Feature outFet = new Feature(oid, sply, new string[] { _fieldName }, fieldvalue, null);
oid++;
fets.Add(outFet);
}
TryExport2ShapeFile(fets.ToArray(), iceLineShpFileName, enumShapeType.Polyline);
}
private Feature GetIceLineFeature(ref int oid, GeometryOfDrawed geo)
{
if (geo.ControlRasterPoints == null || geo.ControlRasterPoints.Length == 0)
{
return(null);
}
Feature fet = null;
List <ShapePoint> points = new List <ShapePoint>();
foreach (PointF rasterPoint in geo.RasterPoints)
{
double geoX, geoY;
_canvas.CoordTransform.Raster2Geo((int)rasterPoint.Y, (int)rasterPoint.X, out geoX, out geoY);
points.Add(new ShapePoint(geoX, geoY));
}
ShapeLineString shapeLine = new ShapeLineString(points.ToArray());
string fieldValue = "冰缘线" + (oid + 1).ToString();
fet = new Feature(oid, new ShapePolyline(new ShapeLineString[] { shapeLine }), new string[] { _fieldName }, new string[] { fieldValue }, new LabelLocation[] { new LabelLocation() });
oid++;
return(fet);
}
private unsafe Feature GetFeature(ContourLine cntLine, ICanvas canvas, int OID)
{
int ptCount = cntLine.Count;
ShapePoint[] pts = new ShapePoint[ptCount];
fixed(PointF *ptr0 = cntLine.Points)
{
PointF *ptr = ptr0;
for (int i = 0; i < ptCount; i++, ptr++)
{
double geoX, geoY;
canvas.CoordTransform.Prj2Geo(ptr->X, ptr->Y, out geoX, out geoY);
pts[i] = new ShapePoint(geoX, geoY);
}
}
ShapeLineString ring = new ShapeLineString(pts);
ShapePolyline ply = new ShapePolyline(new ShapeLineString[] { ring });
Feature fet = new Feature(OID, ply, new string[] { "Contour" }, new string[] { cntLine.ContourValue.ToString() }, null);
return(fet);
}
private unsafe Feature GetFeature(ContourLine cntLine, double resX, double resY,
double minX, double maxY, int OID)
{
int ptCount = cntLine.Count;
ShapePoint[] pts = new ShapePoint[ptCount];
fixed(PointF *ptr0 = cntLine.Points)
{
PointF *ptr = ptr0;
for (int i = 0; i < ptCount; i++, ptr++)
{
ptr->X = (float)(ptr->X * resX + minX);
ptr->Y = (float)(maxY - ptr->Y * resY);
pts[i] = new ShapePoint(ptr->X, ptr->Y);
}
}
ShapeLineString ring = new ShapeLineString(pts);
ShapePolyline ply = new ShapePolyline(new ShapeLineString[] { ring });
Feature fet = new Feature(OID, ply, new string[] { "Contour" }, new string[] { cntLine.ContourValue.ToString() }, null);
return(fet);
}
private Feature[] ConstructPoint(float[] lats, float[] lons)
{
List <Feature> features = new List <Feature>();
ShapePoint pt;
string[] fieldValues = null;
string[] fieldNames = null;
//除去经度、纬度属性
//int fieldCount = _fields.Length;
int pointCount = lats.Length;
List <ShapePoint> sps = new List <ShapePoint>();
for (int oid = 0; oid < pointCount; oid++)
{
pt = new ShapePoint(lons[oid], lats[oid]);
sps.Add(pt);
}
ShapeLineString[] parts = new ShapeLineString[] { new ShapeLineString(sps.ToArray()) };
ShapePolyline spl = new ShapePolyline(parts);
Feature f = new Feature(0, spl, fieldNames, fieldValues, null);
features.Add(f);
return(features.ToArray());
}
