[pdal] Several Overlapping Patches When Writing to pgpointcloud through filters.chipper

[Peter Lim]

Hi,

 

I'm reading some las files, using filters.chipper and write to PostgreSQ
database using the following pipeline:

 

[

    {

"type":"readers.las",

                "filename":"X:/tem/*.las"

   },

  {

                "type":"filters.reprojection",

                "in_srs":"EPSG:32648",

                "out_srs":"EPSG:3414"

    },

    {

                 "type":"filters.chipper",

                "capacity":600

    },    

    {

"type":"writers.pgpointcloud",

"connection":"host='localhost' dbname='lidar' user='anyuser'  ",

"table":"example",

"schema":"pc",

                "overwrite":"true",         

"compression":"dimensional",

"srid":"3414",

"scale_x":"0.001",

                "scale_y":"0.001",

                "scale_z":"0.001",

                "offset_x":"2000",

                "offset_y":"20000",


                "output_dims":"Intensity, X, Y, Z"


    }                          

]

 

However, the table has many overlapping patches as shown below:



 

I had tried using filters.mortonorder but still the same results. 

 

May I know is there anyway to avoid or reduce overlapping patches.

 

Please advise.

 

Thank you.

 

Best Regards,

 

Peter Lim

 



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