477 File – What is .477 file and how to open it?

477 File Format

A 477 file is a supplementary data file used in conjunction with MNS (Master Network Services) shape files, which are vector-based map data formats used to store geographic information. The 477 file extension stands for “MNS Shape Definition Companion File.” It contains additional information about the shapes defined in the corresponding MNS shape file, such as the shape’s color, texture, and transparency.

The 477 file format is primarily used by software applications that work with MNS shape files. These applications utilize the information stored in the 477 file to render the shapes in the MNS file on a map or other display surface. The 477 file does not contain any actual geometry data; instead, it provides metadata and properties that define the appearance and behavior of the shapes in the MNS file.

Understanding the MNS Shape Definition Companion File (.477)

The .477 file extension is associated with the MNS Shape Definition Companion File, a format developed by Sapper Oy for use with their MapInfo software. This file type is primarily utilized to provide additional information and definitions that complement the main shapefile (.shp) file. The .477 file stores data related to the shapes, symbols, and attributes contained within the shapefile, enhancing the user’s ability to visualize and analyze the spatial data effectively.

Steps to Open a .477 File

To open a .477 file, you will need to use software capable of reading MapInfo shapefiles. Some common options include:

• MapInfo Professional: This is the original software developed by Sapper Oy and remains a widely used program for handling spatial data, including shapefiles and their companion .477 files.
• QGIS: As an open-source GIS software suite, QGIS provides a comprehensive set of tools for managing, analyzing, and visualizing spatial data. It can open shapefiles and their associated .477 files, enabling you to explore and utilize the additional information provided.
• ArcGIS: Developed by Esri, ArcGIS is another popular GIS software that offers an extensive range of geospatial analysis and mapping capabilities. It supports opening shapefiles and reading the information stored in the accompanying .477 files.

477 File Format: Overview

The 477 file extension is associated with the Maritime Navigation System (MNS) Shape Definition Companion File, a data format used in the maritime industry. Developed by Sapper Oy, an international software company specializing in maritime solutions, the 477 file contains additional information about the shapes defined in the primary MNS shape definition file (.476). This companion file aids in the accurate representation and visualization of various maritime objects, such as ships, buoys, and obstacles, within MNS software applications.

Key Features of 477 Files

The 477 file format complements the main shape definition file by providing supplemental data that enhances the display and functionality of maritime shapes. It enables the addition of textures, lighting effects, sounds, and other properties that contribute to the realistic simulation of marine environments. Additionally, 477 files support the definition of dynamic properties, allowing shapes to move, interact with each other, and respond to user input. This dynamic behavior is particularly useful in training simulators, where realistic and immersive simulations are crucial for effective maritime education and training.

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