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Gridded CSV to Raster using Geotools(使用Geotools将栅格CSV转换为栅格)

2022-05-14 16:32:38  阅读:10  来源: 互联网

标签:integers Geotools double coordinates 栅格 DEM CSV 精度


https://gis.stackexchange.com/questions/246080/gridded-csv-to-raster-using-geotools

问题:

Could someone please point me in the right direction for creating a geotiff DEM with Geotools that from gridded X,Y,Z coordinates.

有人能告诉我用Geotools创建geotiff DEM的正确方向吗?Geotools可以从网格化的X、Y、Z坐标创建geotiff DEM吗?

我目前正在做这件事:

GridCoverage2D coverage = new GridCoverageFactory().create("DEM", dem, WORLD);

Values that are integer,integer,double for x,y,z however, after re-projecting data the coordinates can be double,double,double for x,y,z. GridCoverage2D will only accept integers for x,y. I can round these to integers however I am not sure that is the correct approach.

x,y,z的值是整数,整数,双精度。但是,经过重投影,数据坐标变成了双精度,双精度,双精度。GridCoverage2D只接受x,y为整数。我可以四舍五入,但是,我不确定这会是正确的方法。

How can I use the in built functions to create a raster dem without losing precision?

如何使用内置功能创建光栅dem而不损失精度?

回答:

The integers you are working with are the row and column indexes of the underlying raster object. To find out what these values should be when dealing with geographic coordinates you can use the worldToGrid method of the GridGeometry class.

你正在使用的整数是基础光栅对象的行索引和列索引。要了解在处理地理坐标时这些值应该是什么,可以使用GridGeometry类的worldToGrid方法。

标签:integers,Geotools,double,coordinates,栅格,DEM,CSV,精度
来源: https://www.cnblogs.com/2008nmj/p/16270493.html

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