/// <summary>
/// Get the z values and populate each one of them in Coordinate.Z
/// If there are M values, return an array with those.
/// </summary>
/// <param name="file">The reader</param>
/// <param name="totalRecordLength">Total number of bytes in this record</param>
/// <param name="currentlyReadBytes">How many bytes are read from this record</param>
/// <param name="buffer">The coordinate buffer</param>
/// <param name="skippedList">A list of indices which have not been added to the buffer</param>
protected void GetZMValues(BigEndianBinaryReader file, int totalRecordLength, ref int currentlyReadBytes, ICoordinateBuffer buffer, HS skippedList = null)
{
if (skippedList == null)
skippedList = new HS();
var numPoints = buffer.Capacity;
if (HasZValue())
{
boundingBox[boundingBoxIndex++] = ReadDouble(file, totalRecordLength, ref currentlyReadBytes);
boundingBox[boundingBoxIndex++] = ReadDouble(file, totalRecordLength, ref currentlyReadBytes);
var numSkipped = 0;
for (var i = 0; i < numPoints; i++)
{
var z = ReadDouble(file, totalRecordLength, ref currentlyReadBytes);
if (!skippedList.Contains(i))
buffer.SetZ(i-numSkipped, z);
else numSkipped++;
}
}
// Trond: Note that M value is always optional per the shapefile spec. So we need to test total read record bytes
// v.s. read bytes to see if we have them or not
// Also: If we have Z we might have M. Per shapefile defn.
if ((HasMValue() || HasZValue()) && currentlyReadBytes < totalRecordLength)
{
boundingBox[boundingBoxIndex++] = ReadDouble(file, totalRecordLength, ref currentlyReadBytes);
boundingBox[boundingBoxIndex++] = ReadDouble(file, totalRecordLength, ref currentlyReadBytes);
var numSkipped = 0;
for (var i = 0; i < numPoints; i++)
{
var m = ReadDouble(file, totalRecordLength, ref currentlyReadBytes);
if (!skippedList.Contains(i))
buffer.SetM(i - numSkipped, m);
else numSkipped++;
}
}
if (currentlyReadBytes < totalRecordLength)
{
int remaining = totalRecordLength - currentlyReadBytes;
file.ReadBytes(remaining * 2);
}
}
/// <summary>
/// Get the z values and populate each one of them in Coordinate.Z
/// If there are M values, return an array with those.
/// </summary>
/// <param name="file">The reader</param>
/// <param name="totalRecordLength">Total number of bytes in this record</param>
/// <param name="currentlyReadBytes">How many bytes are read from this record</param>
/// <param name="buffer">The coordinate buffer</param>
/// <param name="skippedList">A list of indices which have not been added to the buffer</param>
protected void GetZMValues(BigEndianBinaryReader file, int totalRecordLength, ref int currentlyReadBytes, ICoordinateBuffer buffer, HS skippedList = null)
{
if (skippedList == null)
{
skippedList = new HS();
}
var numPoints = buffer.Capacity;
if (HasZValue())
{
boundingBox[boundingBoxIndex++] = ReadDouble(file, totalRecordLength, ref currentlyReadBytes);
boundingBox[boundingBoxIndex++] = ReadDouble(file, totalRecordLength, ref currentlyReadBytes);
var numSkipped = 0;
for (var i = 0; i < numPoints; i++)
{
var z = ReadDouble(file, totalRecordLength, ref currentlyReadBytes);
if (!skippedList.Contains(i))
{
buffer.SetZ(i - numSkipped, z);
}
else
{
numSkipped++;
}
}
}
// Trond: Note that M value is always optional per the shapefile spec. So we need to test total read record bytes
// v.s. read bytes to see if we have them or not
// Also: If we have Z we might have M. Per shapefile defn.
if ((HasMValue() || HasZValue()) && currentlyReadBytes < totalRecordLength)
{
boundingBox[boundingBoxIndex++] = ReadDouble(file, totalRecordLength, ref currentlyReadBytes);
boundingBox[boundingBoxIndex++] = ReadDouble(file, totalRecordLength, ref currentlyReadBytes);
var numSkipped = 0;
for (var i = 0; i < numPoints; i++)
{
var m = ReadDouble(file, totalRecordLength, ref currentlyReadBytes);
if (!skippedList.Contains(i))
{
buffer.SetM(i - numSkipped, m);
}
else
{
numSkipped++;
}
}
}
if (currentlyReadBytes < totalRecordLength)
{
int remaining = totalRecordLength - currentlyReadBytes;
file.ReadBytes(remaining * 2);
}
}
