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LasLibNet

• The LasLibNet is a library coded ONLY by C#, and used to read or write the las/laz file. The author is a teacher and a developer in GIS department of Central Southen University, Hunan province, China. If you any question, you can send email to Ligq168@csu.edu.cn.
• LasLibNet库是用C#编写的、用于读取或写入las/laz文件的.net 库， 作者是中南大学地理信息系的老师，如果你有任何问题，可以发邮件到Ligq168@csu.edu.cn, 或者加QQ41733233.

Usage

1. How to read a las file?

// Create a las reader instance
LasReader lasReader = new LasReader();
// Declare a las header variable to get the header of a las file
LasHeader lasHeader;

// Open a las file
if(lasReader.OpenReader(@"d:\sample_data\sample.las"))
{
  lasHeader = lasReader.Header;
  // Toto about the header or point data.
}  

2. How to traverse all point data?

// Loop through number of points indicated
 for (int pointIndex = 0; pointIndex < lasHeader.number_of_point_records; pointIndex++)
  {
      // Read the point
      LasPoint p = lasReader.ReadPoint();
      if (p == null)
      {
          MessageBox.Show(lasReader.Error, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
          break;
      }
      // Todo about the las point.
 }

3. How to get different VERSION and FORMAT point data?

If you want know about the las file format, you can access https://en.wikipedia.org/wiki/LAS_file_format.
In the LasLibNet lib, some las point MODEL have been defined. For example:

Model.LasPoint_1_2_Format3 point_1_2_3 = p.ToPoint_1_2_Format3();  // The p is the variable defined in pre step.

Yet, if you want to convert the special version and format point MODEL into LasPoint MODEL. You can:
LasPoint p = new LasPoint(); 
p.FromPoint_1_2_Format3(point_1_2_3);  // The point_1_2_3 is the a variable of the model LasPoint_1_2_Format3.

4. How to create a las file?

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