A fractal is generally "a rough or fragmented geometric Shape that can be split into parts, each of which is (at least approximately) a reduced-size copy of the whole,"[1] a property called self-similarity. The term was coined by Benoî t Mandelbrot in 1975 and was derived from the Latin fractus meaning "broken" or "fractured." A mathematical fractal is based on an equation that undergoes iteration, a form of feedback based on recursion.[2]
shp 文件修復工具（Shape
Checker），解決由于dbf文件和shp文件不一致導致打不開的問題.Shape文件修復工具免費下載 由ESRI開發，一個ESRI（Environmental
Systems Research
Institute)的Shape文件包括一個主文件，一個索引文件，和一個dBASE表，其中主文件的后綴就是.shp。
