SHP文件格式分析
研究MO中很重要的一部分就是SHP格式分析，对于底层开始时很重要的。
根据韩鹏老师的书，特将自己的读取内容后分析如下。
ＳＨＰ结构说明
| 文件头 | |
| 记录头 | 记录内容 |
１）文件头的结构
文件头是长度固定的（１００ＢＹＴＥ）共９个ｉｎｔ型和７个ｄｏｕｂｌｅ型。
| 起始位置 | 名称 | 数值 | 类型 | 位序 |
| ０ | File Code | 9994 | int | big |
| ４ | Unused | 0 | int | big |
| ８ | Unused | 0 | int | big |
| １２ | Unused | 0 | int | big |
| １６ | Unused | 0 | int | big |
| ２０ | Unused | 0 | int | big |
| ２４ | 文件长度 | 文件的实际长度 | int | big |
| ２８ | 版本号 | 1000 | int | Little |
| ３２ | 几何类型 | 几何类型 | int | Little |
| ３６ | Xmin | 最小值 | double | Little |
| ４４ | Ymin | 最小值 | double | Little |
| ５２ | Xmax | 最小值 | double | Little |
| ６０ | Ymax | 最小值 | double | Little |
| ６８× | Zmin | 最小值 | double | Little |
| ７６× | Zmax | 最小值 | double | Little |
| ８４× | Mmin | 最小的Measure值 | double | Little |
| ９２× | Mmax | 最大的Measure值 | double | Little |
2）实体信息
实体信息包括：记录头和记录内容
记录头包括：记录号和坐标记录长度
| 位序 | 记录类型 | 备注 | |
| 记录号 | ｂｉｇ | ｉｎｔ | 从１开始 |
| 坐标长度 | ｂｉｇ | ｉｎｔ |
记录内容：因不同的几何要素类型不同而不同，主要有：点、线、面。
现在我们介绍线状。
| 记录项 | 数值 | 数据类型 | 长度 | 个数 | 位序 |
| 几何类型 | 3(表示线状目标) | int | 4 | 1 | Little |
| 坐标范围 | double | 32 | 4 | Little | |
| 子线段个数 NumParts |
int | 4 | 1 | Little | |
| 坐标个数 NumPoints |
int | 4 | 1 | Little | |
| Parts数组 | int | 4*NumParts | NumParts | Little | |
| Points数组 | 记录所有坐标信息 | Points | 根据点个数确定 | NumPoints | Little |
通过读取内存里面的内容分析如下：
00000591 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000592 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000593 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000594 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000595 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x27
00000596 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xd8
00000597 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xa
00000598 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xf5
File Code 9994 正序读取
00000599 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000600 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000601 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000602 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000603 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000604 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000605 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000606 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
Unused1 0
00000607 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000608 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000609 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000610 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000611 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000612 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000613 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000614 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
Unused2 0
00000615 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000616 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000617 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000618 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000619 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000620 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000621 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000622 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
Unused3 0
00000623 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000624 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000625 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000626 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000627 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000628 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000629 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000630 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
Unused4 0
00000631 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000632 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000633 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000634 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000635 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000636 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000637 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000638 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
Unused5 0
00000639 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000640 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000641 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000642 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000643 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x2
00000644 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xfd
00000645 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x1a
00000646 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xe5
文件的实际长度 538 正序读取
00000647 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xe8
00000648 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x17
00000649 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x3
00000650 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xfc
00000651 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000652 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000653 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000654 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
版本号 1000 实际读取的时候为倒序读取（以下均为倒序读取）
00000655 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x3
00000656 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xfc
00000657 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000658 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000659 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000660 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000661 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000662 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
几何类型 3 代表线 倒序读取
00000663 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xed
00000664 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x12
00000665 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x80
00000666 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x7f
00000667 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xeb
00000668 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x14
00000669 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x8a
00000670 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x75
00000671 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x19
00000672 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xe6
00000673 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xb8
00000674 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x47
00000675 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x59
00000676 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xa6
00000677 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000678 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
Xmin
00000679 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x95
00000680 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x6a
00000681 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x28
00000682 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xd7
00000683 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x7b
00000684 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x84
00000685 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x4b
00000686 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xb4
00000687 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x39
00000688 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xc6
00000689 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x8f
00000690 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x70
00000691 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000692 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
00000693 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000694 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
Ymin
00000695 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x1e
00000696 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xe1
00000697 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xc3
00000698 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x3c
00000699 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x63
00000700 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x9c
00000701 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x3f
00000702 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xc0
00000703 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x8b
00000704 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x74
00000705 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xbf
00000706 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x40
00000707 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x59
00000708 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xa6
00000709 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000710 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
Xmax
00000711 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xc2
00000712 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x3d
00000713 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x34
00000714 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xcb
00000715 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xc
00000716 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xf3
00000717 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x1f
00000718 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xe0
00000719 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x11
00000720 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xee
00000721 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xa3
00000722 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x5c
00000723 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000724 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
00000725 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000726 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
Ymax
00000727 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000728 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000729 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000730 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000731 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000732 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000733 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000734 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000735 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000736 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000737 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000738 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000739 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000740 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000741 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000742 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
Zmin
00000743 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000744 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000745 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000746 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000747 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000748 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000749 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000750 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000751 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000752 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000753 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000754 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000755 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000756 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000757 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000758 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
Zmax
00000759 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000760 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000761 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000762 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000763 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000764 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000765 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000766 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000767 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000768 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000769 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000770 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000771 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000772 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000773 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000774 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
Mmin
00000775 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000776 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000777 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000778 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000779 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000780 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000781 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000782 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000783 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000784 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000785 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000786 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000787 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000788 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000789 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000790 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
Mmax
00000791 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000792 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000793 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000794 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000795 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000796 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000797 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x1
00000798 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xfe
RecordNumber 1 正序读
00000799 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000800 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000801 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000802 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000803 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000804 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000805 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x28
00000806 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xd7
//ContentLength 40 正序读
00000807 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x3
00000808 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xfc
00000809 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000810 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000811 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000812 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000813 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000814 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
//几何类型 3 倒序读
00000815 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x84
00000816 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x7b
00000817 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xf0
00000818 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xf
00000819 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x68
00000820 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x97
00000821 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xe3
00000822 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x1c
00000823 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x88
00000824 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x77
00000825 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xb8
00000826 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x47
00000827 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x59
00000828 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xa6
00000829 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000830 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
//BOX 1
00000831 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x76
00000832 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x89
00000833 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xa9
00000834 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x56
00000835 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x11
00000836 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xee
00000837 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xfa
00000838 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x5
00000839 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x99
00000840 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x66
00000841 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xa0
00000842 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x5f
00000843 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000844 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
00000845 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000846 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
//BOX 2
00000847 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x7c
00000848 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x83
00000849 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x44
00000850 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbb
00000851 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x4c
00000852 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xb3
00000853 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x89
00000854 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x76
00000855 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x24
00000856 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xdb
00000857 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xb9
00000858 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x46
00000859 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x59
00000860 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xa6
00000861 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000862 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
//BOX 3
00000863 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x9c
00000864 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x63
00000865 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x6b
00000866 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x94
00000867 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x98
00000868 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x67
00000869 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xa1
00000870 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x5e
00000871 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xf1
00000872 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xe
00000873 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xa2
00000874 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x5d
00000875 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000876 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
00000877 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000878 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
//BOX 4
00000879 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x1
00000880 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xfe
00000881 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000882 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000883 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000884 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000885 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000886 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
//NumParts 1 倒序读
00000887 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x2
00000888 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xfd
00000889 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000890 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000891 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000892 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000893 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000894 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
//NumPoints 2 倒序读
00000895 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000896 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000897 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000898 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000899 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000900 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
00000901 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x0
00000902 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xff
//Parts数组 全0
00000903 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x7c
00000904 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x83
00000905 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x44
00000906 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbb
00000907 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x4c
00000908 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xb3
00000909 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x89
00000910 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x76
00000911 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x24
00000912 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xdb
00000913 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xb9
00000914 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x46
00000915 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x59
00000916 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xa6
00000917 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000918 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
//X
00000919 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x9c
00000920 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x63
00000921 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x6b
00000922 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x94
00000923 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x98
00000924 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x67
00000925 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xa1
00000926 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x5e
00000927 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xf1
00000928 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xe
00000929 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xa2
00000930 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x5d
00000931 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000932 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
00000933 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000934 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
//Y
00000935 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x84
00000936 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x7b
00000937 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xf0
00000938 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xf
00000939 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x68
00000940 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x97
00000941 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xe3
00000942 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x1c
00000943 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x88
00000944 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x77
00000945 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xb8
00000946 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x47
00000947 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x59
00000948 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xa6
00000949 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000950 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
//X
00000951 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x76
00000952 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x89
00000953 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xa9
00000954 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x56
00000955 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x11
00000956 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xee
00000957 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xfa
00000958 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x5
00000959 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x99
00000960 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x66
00000961 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0xa0
00000962 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0x5f
00000963 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000964 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
00000965 15:59:44 ((PUCHAR) CompletionCtx->MyBuffer)[Offset] is 0x40
00000966 15:59:44 (PUCHAR) CompletionCtx->OldBuffer)[Offset] is 0xbf
//Y
至此 所有的点数据读取完毕。
