IDL中用于显示二维图像的函数，可直接调用。IDL中已有的TV函数可显示二维图像。本函数。是在TV基础上功能的加强。如可利用position指定图像在窗口的的位置等。-IDL used to display two-dimensional image of the function, can be directly called. IDL have the TV function can display two-dimensional image. This function. In the TV based on the function of strengthening. Can make use of the designated position, such as images in the window and so on.