RGB values are set in point correctly but are not read back.

[MartenBroekens]

Hi, I am trying to store RGB point values in a every point of a large point cloud using the writer. I verified that the rgb values are in the point but when I read the point back the RGB values are zero. I tried both 8 and 16 bit rgb values and with the classification value at 2 as touched upon in issue #9 . What I do in the code to save rgb is the following. p.R, p.G, p.B are 8-bit RGB values in bytes respectively:

laszip_point point = new laszip_point();
point.rgb[0] = Convert.ToUInt16(p.R * 256);
point.rgb[1] = Convert.ToUInt16(p.G * 256);
point.rgb[2] = Convert.ToUInt16(p.B * 256);
var err = m_LasWriter.laszip_set_point(point);
err = m_LasWriter.laszip_write_point();

[MartenBroekens]

I found the issue m_LasWriter.header.point_data_format needs to be set to 2 for rgb signals and 3 for rgb signals plus gps time data for the data to be saved.