#Mdb accdb viewer and reader pro

Old MapInfo files in the folder are overwritten with the new feature data. If the folder does not exist, the writer has to create it. The MapInfo writer creates and writes feature data to MapInfo files in the folder specified by the Writer Dataset parameter. In this case, only that MapInfo file is read. Optionally, a single MapInfo file can be given as the dataset. When the file is exhausted, the MapInfo reader starts on the next file in the folder. The MapInfo reader then extracts features from the file one at a time, and passes them on to the rest of the FME for further processing. If a match is made, or no IDs were specified in the mapping file, the MapInfo file is opened. For each logical MapInfo file that it finds, it checks to see if it that file is requested by looking at the list of IDs specified in the workspace. The MapInfo reader first scans the folder it is given for the MapInfo files specified in the Reader Dataset parameter. The attribute definitions for each MapInfo file set must be defined in the workspace before data can be read or written. Each geometric entity in turn corresponds with one record in the attribute table.įME considers a MapInfo dataset to be a collection of TAB files and related files in a single folder. Note that the second polygon contains a hole while the third polygon is an aggregate of two disjoint polygons, one of which contains a hole. The following illustration shows a MapInfo file containing three region entities. There must be at least one attribute field defined before a MapInfo file can be created. The number and type of attributes associated with each entity is specified by the user. grd) files however, you can use the Precisely MapInfo Vertical Mapper Grid (NGrid) Reader/Writer to read these files. Note: FME does not directly support MapInfo Grid (.tab. Type ACCESS is only supported when using the MITAB reader.

In other words, the MapInfo reader supports datasets of Type NATIVE, Type DBF, Type ACCESS and Type XLS. The MapInfo reader can open datasets in which the attributes are stored as. A single MapInfo map file can contain many different types of geometry however, the associated attributes must have the same number and type of fields for each entity in the file. In addition, each entity has a row of attributes associated with it. Note: In this chapter, references to file are references to the logical MapInfo file, not the multiple physical files that make it up.Įach geometric entity present in MapInfo has display properties, such as pen and brush width, pattern, and color. These extensions are added to the basename of the specified MapInfo file. Microsoft Access format is only supported when using the MITAB reader.Īn index to a MapInfo graphical objects (MAP) file.Ĭontains geographic information describing map objects.Īn index to a MapInfo tabular (DAT) file. Tabular data for a table in MapInfo’s native format (.dat), dBASE format (.dbf), or Microsoft Access format (.mdb or.

The main file for a MapInfo table, it is associated with the appropriate DAT, MAP, ID, and IND files. A logical MapInfo file consists of several physical files, having the following filename extensions: MapInfo files store both feature geometry and attributes. However, point features can define an elevation attribute to store their elevation.

MapInfo is a two-dimensional system with no provision for transferring elevation data for each vertex in a MapInfo feature. This commonality makes it easy to support both MIF and MapInfo Native formats in the same workspace. This module is closely patterned after the MapInfo MIF/MID reader and writer. MapInfo Native format files are often called TAB files.

#Mdb accdb viewer and reader pro

The MapInfo Native Format is a proprietary format used by the MapInfo Pro mapping product. For help with choosing the format that is right for your workflow, see Choosing the Right MapInfo Format. MapInfo Formats: FME can read and write several of the proprietary formats created by MapInfo Pro. Precisely MapInfo TAB (MAPINFO/MITAB) Reader/Writer