一般情况下，模型栅格的变形是轴向应变和切向应变的组合。

In general, the deformation of the model grille is a combination of axial and shear strains.

youdao

首先，重点阐述了数字航空影像几何纠正，以及栅格地图变形纠正的基本原理，进一步提高了几何纠正的精度。

First, the basic principles of geometry rectification of digital aerial images and raster relief map are introduced and thus the accuracy of geometry rectification is improved.

youdao