MapInfo Pro has a complete set of drawing commands and editing commands. These command allow you to draw and modify objects on your map. You can also use these commands to customize the colors, fill patterns, line types, symbols, and text on your map.
However, these commands and commands give you more than the ability to modify your map. You can draw a variety of objects that you can use to perform powerful geographic analyses. For example, you can draw circles, polygons, and other bounded objects. You can then search for records within those boundaries.
We have covered making a layer editable in depth elsewhere in this User Guide, see Making the Layers "Editable".
If you use the contouring process to create signal coverage maps, you can create highly detailed coverage areas. Theoretically, the size of an object is only limited by the amount of memory in your system, but for practical reasons, an actual limit is imposed to work within limits of file size and most system memory limits. The size limit for objects is 1,073,741,823 bytes in memory. We selected this limit so that an object of this size can be saved into a Map file, which has a limit of 2 GB.
In terms of actual number of nodes that can fit into this memory size, the limit is 134,217,724 nodes in any object. It would be very difficult to reach this node limit because memory allocation may prohibit it. It might not be possible to create a Map file this size on a computer being used to accommodate an object this size; the program may throw an error when this happens.
- For regions, the theoretical maximum number of polygons in a multi-polygon region or collection is 20,648,881 polygons that can fit into the size limit for all objects given above.
- For polyline objects, the theoretical maximum number of segments in a multi-segment polyline is 24,403,223 that can fit into the size limit for all objects given above.
- For multipoint objects, the theoretical maximum number of nodes is 134,217,724 that can fit into the size limit for all objects given above.