Input Settings for Vector Product Format (VPF) Coverage Dialog Box (FME) - MapInfo_Pro - 2023

MapInfo Pro Help

Product type
Software
Portfolio
Locate
Product family
MapInfo
Product
MapInfo > MapInfo Pro
Version
2023
Language
English
Product name
MapInfo Pro
Title
MapInfo Pro Help
First publish date
1985
Last updated
2023-09-12
Published on
2023-09-12T16:39:16.995549

This dialog box is part of Safe Software's Feature Manipulation Engine (FME).

Dataset Parameters

  • Dataset - In database mode (VPF_DB), the value for this directive is the path to the DHT file. The directory where this file exists is the root directory of the VPF database. This directory directly and indirectly contains all the libraries, coverage, feature classes and related metadata for the database. A typical mapping file fragment that selects a VMap database from drive e: would be:
    VPF_DATASET e:/vmaplv0/dht 

    In coverage mode (VPF), the value for this directive defines the coverage directory that the reader will read from. A typical mapping file fragment that selects a VMap database from drive "e:" would be:

    VPF_DATASET e:/vmaplv0/noamer/hydro 

Feature Class Parameters

  • Feature Class List - This optional specification is used to limit the available feature classes that are read. If no IDs are specified, then all available feature classes are read. The syntax of the IDs directive in a database mode reader (VPF_DB) is:
    <ReaderKeyword>_IDs <libName>\<coverageName>\<featClass> \ ...\...\... 
    \ <libNameM>\<coverageNameN>\<featClassO> 

    The syntax for a DEF line used in a coverage mode reader (VPF) is:

    <ReaderKeyword>_IDs <featClass1> \ ... \ <featClassN> 
    Note: If both DEF lines and IDs are used to specify feature class, then the intersect of these sets determines the actual feature classes to read.
  • Feature Class Separator - The value for this parameter is the character that is used in a feature type to separate the library and coverage names from the metadata table and feature class names. If this attribute is not specified, then the backslash (\) separator is used.

Tile Parameters

  • Tile IDs - Limits the geometric features that are produced. Only feature class features that exist in the specified tiles will be output. If no value is specified, then all the tiles in the library will be used. Input can be in the format <tileId0>, <tileId1> or you can specify a range of IDs in the format <tileId0>-<tileIdN>.

    For more information on how to specify "Tile IDs" please refer to the VPF Chapter in the FME Readers/Writers manual.

  • Tile Extents - Tile extents will take a string formed by a comma-separated list of coordinates. The mimimum x is followed by the minimum y and then the maximum x is followed by the maximum y value.

    For example:

    minx,miny,maxy,maxy 

    In this example, (minx,miny) represent the lower left corner of the bounding box and (maxx,maxy) represent the top right corner of the bounding box.

Schema Attributes

  • Additional Attributes to Expose - This parameter exposes Format Attributes in Workbench when you create a workspace:
    • In a dynamic scenario, it means these attributes can be passed to the output dataset at runtime.
    • In a non-dynamic scenario where you have multiple feature types, it is convenient to expose additional attributes from one parameter. For example, if you have ten feature types and want to expose the same attribute in each one, it is easier to define it once than it is to set each feature type individually in the workspace.

Search Envelope

  • Use Search Envelope - Using the minimum and maximum x and y parameters, define a bounding box that will be used to filter the input features. Only features that interact with the bounding box are returned.

    If all four coordinates of the search envelope are specified as 0, the search envelope will be disabled.

  • Clip to Search Envelope - Check this box if you want to remove any portions of exported features outside the area of interest.

Defaults button

Click to save or reset default settings.

  • Save as My Defaults - Edit a field, and then choose this option to save the parameter.
  • Reset to FME Defaults - Changes the fields back to the standard (FME) defaults.
  • Reset to My Defaults - If you manually edit a field, you can reset it back to your own defaults. Note that you cannot restore your own defaults after resetting to FME defaults.

OK

Closes the dialog box and applies your settings.