Description: 采用getscreen批量截图时,如截2*2度,会出现错位现象,这个现象是正常的,因为南长北短,
本程序用于将错位的像素向右拉,同时将左面错位的校正在一条铅垂线上,底部由于地球的
弧度,也是弯曲的,则也需要校正,最后形成的图像是经纬度为平面坐标的图像.
最后,将2*2度的图像,分割成1*1度的四个文件,并保存为geotiff格式文件,若将这一步去掉,
则可以校正处理任意大小的图像.
注意,本程序的应用条件是,需要用后面的genline或在程序员网上找该程序,用于生成google
能读取的要截图区的google外框,运行它后,会生成经度[70,140],纬度[0,50]度的范围内,将区域
剖分成2*2度的截图网格,每个2*2度网格的KML文件范围要向外扩充0.05度,生成一系统KML文件.
-Using getscreen batch screenshots, such as the cut-off 2* 2 degrees, there will be dislocation phenomenon, this is a normal phenomenon, because South Changbei short program for misplaced pixels to the right pull, while the left dislocation correction in a vertical line at the bottom due to the Earth radians, is also curved, it is also necessary to correct the final image formed is the latitude and longitude coordinates of the plane image. Finally, the 2* 2 degrees the image is divided into 1* 1 degree four files, and save for geotiff format, if this step removed handle images of any size can be corrected. attention to the conditions of the program is needed behind genline or programmers online codes of the program, and for generating google can be read to capture zone google frame, after the run it will generate Log [70,140], the latitude range [0,50] degrees, the area sectional divided into 2* the 2 screenshots grid, each 2* 2 degrees grid KML files range outward expansion of 0 Platform: |
Size: 3072 |
Author:毛小平 |
Hits:
Search - google GEtScreen