Changes between Version 2 and Version 3 of ShpTree


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Timestamp:
Jan 28, 2009, 10:46:54 AM (13 years ago)
Author:
jmckenna
Comment:

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  • ShpTree

    v2 v3  
    3333The spatial index basically breaks the total shapefile area into subregions using a quad-tree approach, recursively splitting the area into four sub quadrants untill each lowest level area has only a few shapes in it (8?). The depth argument may be used to control the maximum depth to which the area will be broken.
    3434
    35 The N/L/M/NL/NM argument allow control of the format of the .qix file. The default is to generate "old style" indexes in the byte order of the current system. The options allow the user to select old format or new format, and what byte order to generate. Generally the spatial indexes should be generated with the byte order of the system on which MapServer will be run (LSB for Intel, MSB for Solaris, Irix) to reduce byte swapping overhead.
     35The N/L/M/NL/NM argument allow control of the format of the .qix file. The default is to generate "old style" indexes in the byte order of the current system. The options allow the user to select old format or new format, and what byte order to generate. Generally the spatial indexes should be generated with the byte order of the system on which !MapServer will be run (LSB for Intel, MSB for Solaris, Irix) to reduce byte swapping overhead.
    3636
    3737== Old vs. New Format ==