ThinkGeo Cloud
ThinkGeo UI Controls
ThinkGeo Open Source
Help and Support
External Resources
ThinkGeo Cloud
ThinkGeo UI Controls
ThinkGeo Open Source
Help and Support
External Resources
This is an old revision of the document!
This class encapsulates the matching operations in a DBF dataset. This class provides functions for creating and adding records and matching for DBF index files. The DBF file could contain one key column whose column name starts with “ID_” and additional columns whose column names start with “DT_”. Each DBF file should also contain two columns named “BB_CX” and “BB_CY”, which represent the longitude and latitude. If there is bounding box information, it should consist of four columns: “BB_ULX”, “BB_ULY”, “BB_LRX”, “BB_LRY” representing upper left X, upper left Y, lower right X and lower right Y. To take advantange of binary searching, records should be sorted before insertion into the DBF file.
N/A
N/A
DbfMatchingPlugin(String,DbfMatchingPluginReadWriteMode)
This is the construcor of this class.
N/A
N/A
This method gets records by using the specified range.
N/A
AddRecord(IEnumerable<Object>)
This method adds one record to the DBF file.
N/A
Releases all resources used by the DbfMatchingPlugin.
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
CreateDbf(String,IEnumerable<DbfMatchingPluginColumn>)
This method creates a DBF file according to the specified file name and column names.
N/A
N/A
N/A
N/A
SearchUpperBound(Int32,Int32,String,String)
This method gets the record number of the upper boundary of the matched results.
N/A
SearchLowerBound(Int32,Int32,String,String)
This method gets the record number of the lower boundary of the matched results.
N/A
This method gets the key column name from the DBF file.
N/A
BinarySearch(Int32,Int32,String,String)
This method does a binary search on the DBF file and returns the record it hits.
N/A
This method is automatically called after an object becomes inaccessible, unless the object has been exempted from finalization by a call to SuppressFinalize.
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A