public WhenCreatingAPointFromXyValues()
{
_fixture = new Fixture();
_x = _fixture.Create <double>();
_y = _fixture.Create <double>();
_sut = new PointM(_x, _y);
}
internal static ShapeContent ReadPolyLineMFromRecord(BinaryReader reader, ShapeRecordHeader header)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
reader.ReadBytes(BoundingBoxByteLength.ToInt32()); // skip BoundingBox
var numberOfParts = reader.ReadInt32LittleEndian();
var numberOfPoints = reader.ReadInt32LittleEndian();
var parts = new int[numberOfParts];
for (var partIndex = 0; partIndex < numberOfParts; partIndex++)
{
parts[partIndex] = reader.ReadInt32LittleEndian();
}
var points = new PointM[numberOfPoints];
for (var pointIndex = 0; pointIndex < numberOfPoints; pointIndex++)
{
points[pointIndex] = new PointM(
reader.ReadDoubleLittleEndian(),
reader.ReadDoubleLittleEndian());
}
var contentLengthWithoutMeasures = ContentHeaderLength
.Plus(ByteLength.Int32.Times(numberOfParts)) // Parts
.Plus(ByteLength.Double.Times(numberOfPoints * 2)); // Points(X,Y)
if (header.ContentLength > contentLengthWithoutMeasures)
{
reader.ReadBytes(MeasureRangeByteLength.ToInt32()); // skip MeasureRange
for (var measureIndex = 0; measureIndex < numberOfPoints; measureIndex++)
{
points[measureIndex].ChangeMeasurement(reader.ReadDoubleLittleEndian()); // Points[i].M
}
}
var lines = new ILineString[numberOfParts];
var toPointIndex = points.Length;
for (var partIndex = numberOfParts - 1; partIndex >= 0; partIndex--)
{
var fromPointIndex = parts[partIndex];
lines[partIndex] = new LineString(
new PointSequence(new ArraySegment <PointM>(points, fromPointIndex, toPointIndex - fromPointIndex)),
GeometryConfiguration.GeometryFactory);
toPointIndex = fromPointIndex;
}
return(new PolyLineMShapeContent(new MultiLineString(lines)));
}
public WhenCreatingAPointFromACoordinate()
{
_fixture = new Fixture();
_coordinate = new Coordinate(
_fixture.Create <double>(),
_fixture.Create <double>(),
_fixture.Create <double>()
);
_sut = new PointM(_coordinate);
}
public WhenCreatingAPointFromAnCoordinateSequence()
{
_fixture = new Fixture();
_xySequence = new DotSpatialAffineCoordinateSequence(1, Ordinates.XYZ);
_xySequence.SetOrdinate(0, Ordinate.X, _fixture.Create <double>());
_xySequence.SetOrdinate(0, Ordinate.Y, _fixture.Create <double>());
_xySequence.SetOrdinate(0, Ordinate.Z, _fixture.Create <double>());
_sut = new PointM(_xySequence);
}
internal static ShapeContent ReadPolyLineMGeometry(BinaryReader reader)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
reader.ReadBytes(BoundingBoxByteLength.ToInt32()); // skip BoundingBox
var numberOfParts = reader.ReadInt32LittleEndian();
var numberOfPoints = reader.ReadInt32LittleEndian();
var parts = new int[numberOfParts];
for (var partIndex = 0; partIndex < numberOfParts; partIndex++)
{
parts[partIndex] = reader.ReadInt32LittleEndian();
}
var points = new PointM[numberOfPoints];
for (var pointIndex = 0; pointIndex < numberOfPoints; pointIndex++)
{
points[pointIndex] = new PointM(
reader.ReadDoubleLittleEndian(),
reader.ReadDoubleLittleEndian());
}
if (reader.BaseStream.CanSeek && reader.BaseStream.Position != reader.BaseStream.Length)
{
reader.ReadBytes(MeasureRangeByteLength.ToInt32()); // skip MeasureRange
for (var measureIndex = 0; measureIndex < numberOfPoints; measureIndex++)
{
points[measureIndex].ChangeMeasurement(reader.ReadDoubleLittleEndian()); // Points[i].M
}
} //else try-catch-EndOfStreamException?? or only support seekable streams?
var lines = new ILineString[numberOfParts];
var toPointIndex = points.Length;
for (var partIndex = numberOfParts - 1; partIndex >= 0; partIndex--)
{
var fromPointIndex = parts[partIndex];
lines[partIndex] = new LineString(
new PointSequence(new ArraySegment <PointM>(points, fromPointIndex, toPointIndex - fromPointIndex)),
GeometryConfiguration.GeometryFactory);
toPointIndex = fromPointIndex;
}
return(new PolyLineMShapeContent(new MultiLineString(lines)));
}
public void SetOrdinate(int index, Ordinate ordinate, double value)
{
if (index >= _points.Length)
{
return;
}
_points[index] = new PointM(
ordinate == Ordinate.X ? value : _points[index].X,
ordinate == Ordinate.Y ? value : _points[index].Y,
ordinate == Ordinate.Z ? value : _points[index].Z,
ordinate == Ordinate.M ? value : _points[index].M
);
}
public PointShapeContent(PointM shape)
{
Shape = shape ?? throw new ArgumentNullException(nameof(shape));
ShapeType = ShapeType.Point;
ContentLength = Length;
}
