The Convert set of menu items is used to create a new geometry object (or in certain special cases, a set of geometry objects) from existing data. Depending on the form of the source data, not all conversions are possible for every geometry object type; refer to the descriptions below:
Convert to Grid via Kriging:  This action is used to generate a new grid from a collection of data points. Only the points themselves are used, therefore any type of geometry object may be used for this operation. Grid point elevations are interpolated using either a "nearest neighbor" technique or a Kriging algorithm. 
Convert to Grid Directly:  This action creates a grid assuming that every data point must be on a grid line. This is most useful for data that is already in the form of a grid; for example, a set of four points that define a square will generate a 2x2 grid, or a set of parallel polylines will generate a grid with points from every line included. Note that random scatter data will not give good results using this option. Caution is therefore recommended. 
Convert to Mesh:  This action creates a mesh from a collection of data points. Creating a mesh from a grid or polygon will honor the external boundary of the source object (meaning that the mesh can be concave or convex). Creating a mesh from any other type, or a combination of types, must create its own external boundary, which means the final mesh will always be concave. 
Convert to Polygon:  This action produces a polygon that encloses a collection of data points. Closed geometry (meshes, grids, and polygons) will produce a merged polygon where possible. It is possible for this action to generate a set of polygons; for example, a mesh with holes may produce a polygon for each hole in addition to the external mesh polygon. 
Convert to Polyline:  This action produces a single polyline, listing each data point in order. Note that complex meshes and grids will not produce a "clean" polyline due to the nature of the source data. 
Convert to Region:  This action produces a region that encloses a collection of data points. Closed geometry (meshes, grids, and polygons) will produce a merged region where possible. It is possible for this action to generate a set of region; for example, a mesh with holes may produce a region for each hole in addition to the external mesh region. 
Convert to Scatter Data:  This action produces a collection of unstructured data points. 
Data from multiple geometry objects can be easily combined using this menu by selecting all geometry to be combined before using this action.
