Wireframe maps are three-dimensional representations of a grid file. The number of columns and rows in the grid file determines the number of X and Y lines drawn on the wireframe map.
Post maps indicate XY locations with symbols and labels.
Posting data points on a map can be useful for determining the distribution and density of your data, as well as placing data or text information at specific locations on the map. You should be able to specify the symbol type, size, color, and angle for the data points. In addition, good software such as Surfer will allow you to place an associated data value or text string next to the posted point. Post maps display a fixed or proportionally sized symbol at each data location. The data points are displayed using the symbol and properties assigned to the class.