[Liblas-devel] invalid point(s)

[Howard Butler]

Here's what lasinfo's output looks like when I use the latest default  
branch from Mercurial.  It looks ok to me.  I think the Merrick files  
were one the variants that writes a lot of stuff in the buffer between  
the end of the header and before the beginning of the points.

http://liblas.org/ticket/142

Any chance you can build from source?

> ---------------------------------------------------------
>   Header Summary
> ---------------------------------------------------------
>   File Name: M_S_FL_Water_District.las
>   Version:                    1.0
>   Source ID:                  0
>   Reserved:                   0
>   Project ID/GUID:           '00000008-001e-07d1-0000-000000000000'
>   System Identifier:         ''
>   Generating Software:       'Merrick LiDAR Processing System'
>   File Creation Day/Year:    264/2006
>   Header Size                227
>   Offset to Point Data       451
>   Number Var. Length Records 1
>   Point Data Format          1
>   Point Data Record Length   28
>   Number of Point Records    4045371
>   Number of Points by Return 3641232 389423 14560 156 0
>   Scale Factor X Y Z         0.01 0.01 0.01
>   Offset X Y Z               0.000000 0.000000 0.000000
>   Min X Y Z                  620000.010000 1055000.000000 31.420000
>   Max X Y Z                  625000.000000 1060000.000000 560.500000
>  Spatial Reference
> Geotiff_Information:
>    Version: 1
>    Key_Revision: 1.0
>    Tagged_Information:
>       End_Of_Tags.
>    Keyed_Information:
>       End_Of_Keys.
>    End_Of_Geotiff.
>
> ---------------------------------------------------------
>   VLR Summary
> ---------------------------------------------------------
>    User: 'LASF_Projection' - Description: 'Projection Info'
>    ID: 34736 Length: 40
>
>
> ---------------------------------------------------------
>   Point Inspection Summary
> ---------------------------------------------------------
>   Header Point Count: 4045371
>   Actual Point Count: 4045371
>
>   Minimum and Maximum Attributes (min,max)
> ---------------------------------------------------------
>   Min X,Y,Z: 		620000.010000,1055000.000000,31.420000
>   Max X,Y,Z: 		625000.000000,1060000.000000,560.500000
>   Bounding Box:		620000.01,1055000.00,625000.00,1060000.00
>   Time:			566520.403957,570126.967477
>   Return Number:	1,4
>   Return Count:		1,4
>   Flightline Edge:	0,0
>   Intensity:		0,244
>   Scan Direction Flag:	0,1
>   Scan Angle Rank:	-15,16
>   Classification:	1,10
>   Point Source Id:	235,237
>   Minimum Color:	 0 0 0
>   Maximum Color:	 0 0 0
>
>   Number of Points by Return
> ---------------------------------------------------------
> 	(0) 3641232	(1) 389423	(2) 14560	(3) 156	(4) 0
>  Total Points: 4045371
>
>   Number of Returns by Pulse
> ---------------------------------------------------------
> 	(1) 3247914	(2) 750421	(3) 46171	(4) 865	(5) 0	(6) 0	(7) 0
>  Total Pulses: 4045371
>
>   Point Classifications
> ---------------------------------------------------------
> 	 3897935 Unclassified (1)
> 	  138167 Ground (2)
> 	     133 Water (9)
> 	    9136 Reserved for ASPRS Definition (10)
>