/// <summary>
/// Loads the VectorFeature array with the features from the
/// shapefile.
/// </summary>
public void LoadFile()
{
FileStream fs = new FileStream(_Filename, FileMode.Open);
BinaryReader br = new BinaryReader(fs);
//VectorFeature tempFeature;
int[] segments;
int segmentPosition;
int pointsInSegment;
PointA[] segmentPoints;
if (_ShapeType == ShapeType.Point)
{
_Features = new VectorPoint[_FeatureCount];
for (int a = 0; a < _FeatureCount; ++a)
{
// Point types don't have parts (segments) / one point per feature
VectorPoint tempFeature = new VectorPoint(1, _ShapeType);
tempFeature.Coordinates = new double[2];
fs.Seek(_OffsetOfRecord[a], 0);
br.ReadInt32(); //Record number (not needed)
br.ReadInt32(); //Content length (not needed)
tempFeature.Type = Enum.GetName(typeof(ShapeType), br.ReadInt32());
tempFeature.Coordinates[0] = br.ReadDouble();
tempFeature.Coordinates[1] = br.ReadDouble();
int colNum = 0;
foreach(string col in _Dbase.FieldNames)
{
tempFeature.Properties.Add(col.Trim().ToLower(), _Dbase[a][colNum].Trim().ToLower());
colNum++;
}
_Features[a] = tempFeature;
}
}
else
{
_Features = new VectorShape[_FeatureCount];
PointA[] tempPoints;
for (int a = 0; a < _FeatureCount; ++a)
{
fs.Seek(_OffsetOfRecord[a] + 44, 0);
int segmentCount = br.ReadInt32();
// Read the number of parts (segments) and create a new VectorFeature
VectorShape tempFeature = new VectorShape(segmentCount, _ShapeType);
fs.Seek(_OffsetOfRecord[a], 0);
br.ReadInt32(); //Record number (not needed)
br.ReadInt32(); //Content length (not needed)
tempFeature.Type = Enum.GetName(typeof(ShapeType), br.ReadInt32());
tempFeature.Bbox[0] = br.ReadDouble(); // X
tempFeature.Bbox[1] = br.ReadDouble(); // Y
tempFeature.Bbox[2] = br.ReadDouble(); // X
tempFeature.Bbox[3] = br.ReadDouble(); // Y
br.ReadInt32(); // Number of parts (segments) gotten earlier
tempPoints = new PointA[br.ReadInt32()]; // Number of points
segments = new int[segmentCount + 1];
//Read in the segment indexes
for (int b = 0; b < segmentCount; ++b)
{
segments[b] = br.ReadInt32();
}
//Read in *ALL* of the points in the feature
for (int c = 0; c < tempPoints.Length; ++c)
{
tempPoints[c] = new PointA(br.ReadDouble(), br.ReadDouble());
}
//Add in an ending point for the inner loop that follows (e)
segments[segmentCount] = tempPoints.Length;
//Watch your step...
for (int d = 0; d < segmentCount; ++d)
{
pointsInSegment = segments[d + 1] - segments[d];
segmentPoints = new PointA[pointsInSegment];
segmentPosition = 0;
for (int e = segments[d]; e < segments[d + 1]; ++e)
{
segmentPoints[segmentPosition] = tempPoints[e];
++segmentPosition;
}
tempFeature.Coordinates.Add(segmentPoints);
}
int colNum = 0;
foreach (string col in _Dbase.FieldNames)
{
tempFeature.Properties.Add(col.Trim().ToLower(), _Dbase[a][colNum].Trim().ToLower());
colNum++;
}
_Features[a] = tempFeature;
}
}
br.Close();
}
/// <summary>
/// Loads the VectorFeature array with the features from the
/// shapefile.
/// </summary>
public void LoadFile()
{
FileStream fs = new FileStream(_Filename, FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(fs);
//VectorFeature tempFeature;
int[] segments;
int segmentPosition;
int pointsInSegment;
PointA[] segmentPoints;
if (_ShapeType == ShapeType.Point)
{
_Features = new VectorPoint[_FeatureCount];
for (int a = 0; a < _FeatureCount; ++a)
{
// Point types don't have parts (segments) / one point per feature
VectorPoint tempFeature = new VectorPoint(1);
tempFeature.Coordinates = new double[2];
fs.Seek(_OffsetOfRecord[a], 0);
br.ReadInt32(); //Record number (not needed)
br.ReadInt32(); //Content length (not needed)
tempFeature.Type = Enum.GetName(typeof(ShapeType), br.ReadInt32());
tempFeature.Coordinates[0] = br.ReadDouble();
tempFeature.Coordinates[1] = br.ReadDouble();
int colNum = 0;
foreach (string col in _Dbase.FieldNames)
{
tempFeature.Properties.Add(col.Trim().ToLower(), _Dbase[a][colNum].Trim().ToLower());
colNum++;
}
_Features[a] = tempFeature;
}
}
else
{
_Features = new VectorShape[_FeatureCount];
PointA[] tempPoints;
for (int a = 0; a < _FeatureCount; ++a)
{
fs.Seek(_OffsetOfRecord[a] + 44, 0);
int segmentCount = br.ReadInt32();
// Read the number of parts (segments) and create a new VectorFeature
VectorShape tempFeature = new VectorShape(segmentCount, _ShapeType);
fs.Seek(_OffsetOfRecord[a], 0);
br.ReadInt32(); //Record number (not needed)
br.ReadInt32(); //Content length (not needed)
tempFeature.Type = Enum.GetName(typeof(ShapeType), br.ReadInt32());
tempFeature.Bbox[0] = br.ReadDouble(); // X
tempFeature.Bbox[1] = br.ReadDouble(); // Y
tempFeature.Bbox[2] = br.ReadDouble(); // X
tempFeature.Bbox[3] = br.ReadDouble(); // Y
br.ReadInt32(); // Number of parts (segments) gotten earlier
tempPoints = new PointA[br.ReadInt32()]; // Number of points
segments = new int[segmentCount + 1];
//Read in the segment indexes
for (int b = 0; b < segmentCount; ++b)
{
segments[b] = br.ReadInt32();
}
//Read in *ALL* of the points in the feature
for (int c = 0; c < tempPoints.Length; ++c)
{
tempPoints[c] = new PointA(br.ReadDouble(), br.ReadDouble());
}
//Add in an ending point for the inner loop that follows (e)
segments[segmentCount] = tempPoints.Length;
//Watch your step...
for (int d = 0; d < segmentCount; ++d)
{
pointsInSegment = segments[d + 1] - segments[d];
segmentPoints = new PointA[pointsInSegment];
segmentPosition = 0;
for (int e = segments[d]; e < segments[d + 1]; ++e)
{
segmentPoints[segmentPosition] = tempPoints[e];
++segmentPosition;
}
tempFeature.Coordinates.Add(segmentPoints);
}
int colNum = 0;
foreach (string col in _Dbase.FieldNames)
{
tempFeature.Properties.Add(col.Trim().ToLower(), _Dbase[a][colNum].Trim().ToLower());
colNum++;
}
_Features[a] = tempFeature;
}
}
br.Close();
}
