Programmatically calculating paths from a spatially-enabled database

   
   

Technics are disclosed for programmatically calculating directions (or other types of paths between points) without reliance on proprietary file formats or binary shape files, and without requiring application programmers to write code that performs complex manipulations of directed graphs. Preferred embodiments leverage built-in functions of a spatially-enabled object relational database system. Information about intersections between streets is used in a novel manner to compute paths between points. The intersection information is preferably obtained from precomputed information stored in a spatially-enabled relational database table.

Technics é divulgado programmatically calculando sentidos (ou outros tipos de trajetos entre pontos) sem reliance em formatos proprietários da lima ou em limas binárias da forma, e sem reque programadores da aplicação escrever o código que executa manipulações complexas de gráficos dirigidos. As incorporações preferidas leverage funções internas de um sistema spatially-permitido da base de dados relacional do objeto. A informação sobre interseções entre ruas é usada em uma maneira da novela computar trajetos entre pontos. A informação da interseção é obtida preferivelmente de precomputed a informação armazenada em uma tabela spatially-permitida da base de dados relacional.

 
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