///////////
// RecordHeader
RecordHeader::RecordHeader(InStream &src)
{
mIndex = src.ReadUInt32();
SwapByteOrder(mIndex);
mLength = src.ReadUInt32();
SwapByteOrder(mLength);
uint32_t shapeTypeInt = src.ReadUInt32();
if(!IsSupportedShapeType(shapeTypeInt))
throw Exception("Unsupported shape type");
mShapeType = (ShapeType)shapeTypeInt;
}
////////
// FileHeader
FileHeader::FileHeader(InStream &src)
{
uint32_t magic = src.ReadUInt32();
if(magic != 0x0a270000)
throw Exception("Not a .shp file");
src.SkipBytes(20);
mFileLength = src.ReadUInt32();
SwapByteOrder(mFileLength);
mVersion = src.ReadUInt32();
if(mVersion != 1000)
throw Exception("Unsupported version");
uint32_t shapeTypeInt = src.ReadUInt32();
if(!IsSupportedShapeType(shapeTypeInt))
throw Exception("Unsupported shape type");
mShapeType = (ShapeType)shapeTypeInt;
mBoundingRect.mMin[0] = (float)src.ReadDouble();
mBoundingRect.mMin[1] = (float)src.ReadDouble();
mBoundingRect.mMax[0] = (float)src.ReadDouble();
mBoundingRect.mMax[1] = (float)src.ReadDouble();
mMinZ = (float)src.ReadDouble();
mMaxZ = (float)src.ReadDouble();
mMinM = (float)src.ReadDouble();
mMaxM = (float)src.ReadDouble();
}
void LcfReader::Read<uint32_t>(std::vector<uint32_t> &buffer, size_t size) {
buffer.clear();
size_t items = size / 4;
for (unsigned int i = 0; i < items; ++i) {
uint32_t val;
Read(&val, 4, 1);
SwapByteOrder(val);
buffer.push_back(val);
}
}
void LcfReader::Read<int32_t>(std::vector<int32_t> &buffer, size_t size) {
buffer.clear();
size_t items = size / 4;
for (unsigned int i = 0; i < items; ++i) {
int32_t val;
Read(&val, 4, 1);
SwapByteOrder(val);
buffer.push_back(val);
}
if (size % 4 != 0) {
Seek(size % 4, FromCurrent);
buffer.push_back(0);
}
}
void LcfReader::Read<uint32_t>(uint32_t& ref) {
Read(&ref, 4, 1);
SwapByteOrder(ref);
}
void LcfReader::Read<int16_t>(int16_t& ref) {
Read(&ref, 2, 1);
SwapByteOrder(ref);
}
void LcfReader::Read<double>(double& ref) {
Read(&ref, 8, 1);
SwapByteOrder(ref);
}
