本文整理汇总了C#中IByteSource.Skip方法的典型用法代码示例。如果您正苦于以下问题：C# IByteSource.Skip方法的具体用法？C# IByteSource.Skip怎么用？C# IByteSource.Skip使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IByteSource的用法示例。
在下文中一共展示了IByteSource.Skip方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: ParseDataset
//.........这里部分代码省略.........
if (_tag.IsPrivate) {
if (_tag.Element != 0x0000 && _tag.Element <= 0x00ff && _vr == DicomVR.UN)
_vr = DicomVR.LO; // force private creator to LO
}
}
while (_state == ParseState.Length) {
if (_tag == DicomTag.Item || _tag == DicomTag.ItemDelimitationItem || _tag == DicomTag.SequenceDelimitationItem) {
if (!source.Require(4, ParseDataset, state)) {
_result = DicomReaderResult.Suspended;
return;
}
_length = source.GetUInt32();
_state = ParseState.Value;
break;
}
if (IsExplicitVR) {
if (_vr.Is16bitLength) {
if (!source.Require(2, ParseDataset, state)) {
_result = DicomReaderResult.Suspended;
return;
}
_length = source.GetUInt16();
} else {
if (!source.Require(6, ParseDataset, state)) {
_result = DicomReaderResult.Suspended;
return;
}
source.Skip(2);
_length = source.GetUInt32();
}
} else {
if (!source.Require(4, ParseDataset, state)) {
_result = DicomReaderResult.Suspended;
return;
}
_length = source.GetUInt32();
// assume that undefined length in implicit dataset is SQ
if (_length == UndefinedLength && _vr == DicomVR.UN)
_vr = DicomVR.SQ;
}
_state = ParseState.Value;
}
if (_state == ParseState.Value) {
// check dictionary for VR after reading length to handle 16-bit lengths
// check before reading value to handle SQ elements
if (_vr == DicomVR.UN && IsExplicitVR) {
var entry = Dictionary[_tag];
if (entry != null)
_vr = entry.ValueRepresentations.FirstOrDefault();
if (_vr == null)
_vr = DicomVR.UN;
}
if (_tag == DicomTag.ItemDelimitationItem) {
// end of sequence item示例2: Preprocess
private static void Preprocess(
IByteSource source,
ref DicomFileFormat fileFormat,
ref DicomTransferSyntax syntax)
{
// mark file origin
source.Mark();
// test for DICM preamble
source.Skip(128);
if (source.GetUInt8() == 'D' && source.GetUInt8() == 'I' && source.GetUInt8() == 'C'
&& source.GetUInt8() == 'M')
{
fileFormat = DicomFileFormat.DICOM3;
}
// test for incorrect syntax in file meta info
do
{
if (fileFormat == DicomFileFormat.DICOM3)
{
// move milestone to after preamble
source.Mark();
}
else
{
// rewind to origin milestone
source.Rewind();
}
// test for file meta info
var group = source.GetUInt16();
if (@group > 0x00ff)
{
source.Endian = Endian.Big;
syntax = DicomTransferSyntax.ExplicitVRBigEndian;
@group = Endian.Swap(@group);
}
if (@group > 0x00ff)
{
// invalid starting tag
fileFormat = DicomFileFormat.Unknown;
source.Rewind();
break;
}
if (fileFormat == DicomFileFormat.Unknown)
{
fileFormat = @group == 0x0002
? DicomFileFormat.DICOM3NoPreamble
: DicomFileFormat.DICOM3NoFileMetaInfo;
}
var element = source.GetUInt16();
var tag = new DicomTag(@group, element);
// test for explicit VR
var vrt = Encoding.UTF8.GetBytes(tag.DictionaryEntry.ValueRepresentations[0].Code);
var vrs = source.GetBytes(2);
if (vrt[0] != vrs[0] || vrt[1] != vrs[1])
{
// implicit VR
syntax = syntax.Endian == Endian.Little
? DicomTransferSyntax.ImplicitVRLittleEndian
: DicomTransferSyntax.ImplicitVRBigEndian;
}
source.Rewind();
}
while (fileFormat == DicomFileFormat.Unknown);
if (fileFormat == DicomFileFormat.Unknown)
{
throw new DicomReaderException("Attempted to read invalid DICOM file");
}
// Adopt transfer syntax endianess to byte source.
source.Endian = syntax.Endian;
}示例3: ParseLength
private bool ParseLength(IByteSource source)
{
while (this.parseStage == ParseStage.Length)
{
if (this._tag == DicomTag.Item || this._tag == DicomTag.ItemDelimitationItem
|| this._tag == DicomTag.SequenceDelimitationItem)
{
if (!source.Require(4))
{
this.result = DicomReaderResult.Suspended;
return false;
}
this.length = source.GetUInt32();
this.parseStage = ParseStage.Value;
break;
}
if (this.isExplicitVR)
{
if (this._vr == DicomVR.Implicit)
{
if (!source.Require(4))
{
this.result = DicomReaderResult.Suspended;
return false;
}
this.length = source.GetUInt32();
// assume that undefined length in implicit VR element is SQ
if (this.length == UndefinedLength)
{
this._vr = DicomVR.SQ;
}
}
else if (this._vr.Is16bitLength)
{
if (!source.Require(2))
{
this.result = DicomReaderResult.Suspended;
return false;
}
this.length = source.GetUInt16();
}
else
{
if (!source.Require(6))
{
this.result = DicomReaderResult.Suspended;
return false;
}
source.Skip(2);
this.length = source.GetUInt32();
// CP-246 (#177) handling
// assume that Undefined Length in explicit datasets with VR UN are sequences
// According to CP-246 the sequence shall be handled as ILE, but this will be handled later...
// in the current code this needs to be restricted to privates
if (this.length == UndefinedLength && this._vr == DicomVR.UN && this._tag.IsPrivate)
{
this._vr = DicomVR.SQ;
}
}
}
else
{
if (!source.Require(4))
{
this.result = DicomReaderResult.Suspended;
return false;
}
this.length = source.GetUInt32();
// assume that undefined length in implicit dataset is SQ
if (this.length == UndefinedLength && this._vr == DicomVR.UN)
{
this._vr = DicomVR.SQ;
}
}
this.parseStage = ParseStage.Value;
}
return true;
}示例4: autoCheckTransferSyntax
private void autoCheckTransferSyntax(IByteSource source, ushort group, ushort element, object state)
{
//start checking Transfer Syntax after reading premable bytes
if (group > 0x0002 && !bAutoDetectVRType)
{
bAutoDetectVRType = true;//just check once
source.Mark();//mark the original position of pointer
//try to parse VR
uint tmpLength = 0;
source.Skip(2);
if (!source.Require(2, ParseDataset, state))
{
_result = DicomReaderResult.Suspended;
source.Rewind();
return;
}
tmpLength = source.GetUInt16();
try
{
if (!source.Require(tmpLength, ParseDataset, state))
{
_result = DicomReaderResult.Suspended;
source.Rewind();
return;
}
source.Skip((int)tmpLength);
if (!source.Require(4, ParseDataset, state))
{
_result = DicomReaderResult.Suspended;
source.Rewind();
return;
}
ushort group2 = source.GetUInt16();
ushort element2 = source.GetUInt16();
DicomPrivateCreator creator2 = null;
if (group2.IsOdd() && element2 > 0x00ff)
{
string pvt2 = null;
uint card2 = (uint)(group2 << 16) + (uint)(element2 >> 8);
if (_private.TryGetValue(card2, out pvt2))
creator2 = Dictionary.GetPrivateCreator(pvt2);
}
var tmpTag = new DicomTag(group2, element2, creator2);
var tmpEntry = Dictionary[tmpTag];
if (!tmpTag.IsPrivate && tmpEntry != null && tmpEntry.MaskTag == null)
{
tmpTag = tmpEntry.Tag; // Use dictionary tag
IsExplicitVR = true;
}
else
{
IsExplicitVR = false;
}
source.Rewind();
}
catch (Exception exin)
{
source.Rewind();
//说明有错误，直接抛出异常
throw new DicomIoException("Auto Check Transfer Syntax Exception by zssure,Details:{0}", exin.StackTrace);
}
}
}