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64 lines
2.2 KiB
SQL
64 lines
2.2 KiB
SQL
create EXTENSION if not exists pointcloud;
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INSERT INTO pointcloud_formats (pcid, srid, schema)
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VALUES (5, 0,
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'<?xml version="1.0" encoding="UTF-8"?>
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<pc:PointCloudSchema xmlns:pc="http://pointcloud.org/schemas/PC/1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
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<pc:dimension>
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<pc:position>1</pc:position>
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<pc:size>4</pc:size>
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<pc:description>X coordinate as a long integer. You must use the scale and offset information of the header to determine the double value.</pc:description>
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<pc:name>X</pc:name>
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<pc:interpretation>int32_t</pc:interpretation>
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<pc:scale>0.01</pc:scale>
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</pc:dimension>
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<pc:dimension>
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<pc:position>2</pc:position>
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<pc:size>4</pc:size>
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<pc:description>Y coordinate as a long integer. You must use the scale and offset information of the header to determine the double value.</pc:description>
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<pc:name>Y</pc:name>
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<pc:interpretation>int32_t</pc:interpretation>
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<pc:scale>0.01</pc:scale>
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</pc:dimension>
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<pc:dimension>
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<pc:position>3</pc:position>
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<pc:size>4</pc:size>
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<pc:description>Z coordinate as a long integer. You must use the scale and offset information of the header to determine the double value.</pc:description>
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<pc:name>Z</pc:name>
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<pc:interpretation>int32_t</pc:interpretation>
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<pc:scale>0.01</pc:scale>
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</pc:dimension>
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<pc:dimension>
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<pc:position>4</pc:position>
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<pc:size>2</pc:size>
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<pc:description>The intensity value is the integer representation of the pulse return magnitude. This value is optional and system specific. However, it should always be included if available.</pc:description>
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<pc:name>Intensity</pc:name>
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<pc:interpretation>uint16_t</pc:interpretation>
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<pc:scale>1</pc:scale>
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</pc:dimension>
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<pc:metadata>
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<Metadata name="compression">laz</Metadata>
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</pc:metadata>
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</pc:PointCloudSchema>'
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);
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CREATE TABLE IF NOT EXISTS pa_compression_laz (
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pa PCPATCH(5)
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);
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\d pa_compression_laz
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INSERT INTO pa_compression_laz (pa)
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SELECT PC_Patch(PC_MakePoint(5, ARRAY[x,y,z,intensity]))
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FROM (
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SELECT
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-127+a/100.0 AS x,
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45+a/100.0 AS y,
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1.0*a AS z,
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a/10 AS intensity,
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a/400 AS gid
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FROM generate_series(1,100000) AS a
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) AS values GROUP BY gid;
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TRUNCATE pointcloud_formats;
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