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

PTM File Format

A PTM file is a map file created by Microsoft MapPoint, a discontinued mapping and navigation software program. It typically contains geographical data, such as roads, landmarks, and points of interest, and is used to create customized maps for personal or business use. PTM files enable users to create and save maps with custom markings, annotations, and routes. They can also be used to share maps and collaborate with others.

Uses and Significance

PTM files are primarily associated with Microsoft MapPoint, which was used for route planning, location-based analysis, and data visualization. Users could create personalized maps, add custom data layers, and perform geospatial analysis tasks using MapPoint. PTM files played a crucial role in these functionalities, allowing users to access and manage map data efficiently.

Despite the discontinuation of Microsoft MapPoint, PTM files remain relevant as legacy map data files. They can be accessed and viewed using specialized mapping software or online mapping services that support the PTM format. Additionally, PTM files can be converted to other popular map formats, such as shapefiles or KML, for wider accessibility and compatibility.

Method 1: Using Microsoft Streets & Trips

To open a PTM file using Microsoft Streets & Trips, follow these steps:

1. Install Microsoft Streets & Trips on your computer.
2. Navigate to the location of the PTM file on your file system.
3. Right-click on the PTM file and select “Open With.”
4. From the list of programs, choose “Microsoft Streets & Trips.”
5. The PTM file will open in Streets & Trips, displaying the map data contained within the file.

Method 2: Using a Third-Party Application

There are several third-party applications available that can open and view PTM files, including:

• GPSBabel (cross-platform): This open-source application can convert PTM files to other GPS formats.
• EasyGPS (Windows, Mac): This commercial software allows you to view, edit, and convert PTM files.
• Global Mapper (Windows, Mac): This professional-grade GIS software can import and display PTM files.

To open a PTM file using a third-party application, follow these general steps:

1. Install the third-party application on your computer.
2. Launch the application and go to the “File” menu.
3. Select the “Open” option and navigate to the location of the PTM file on your file system.
4. Select the PTM file and click “OK” or “Open.”
5. The PTM file will be opened in the third-party application, allowing you to view the map data contained within the file.

PTM File Format

PTM files are MapPoint Map Files, a proprietary format used by Microsoft MapPoint, a discontinued mapping and navigation software. These files contain information related to maps, including geographic data, layers, overlays, and other graphical elements. PTM files enable users to store and share customized maps, making them useful for planning routes, tracking locations, and visualizing spatial data. The PTM format was developed to streamline the handling and distribution of map data, allowing users to easily exchange and collaborate on map-based projects.

PTM File Structure

PTM files consist of a structured hierarchy of elements, each representing a specific aspect of the map. The root element contains overall map metadata, such as the file name, creation date, and scale. Child elements include layers, which organize and group map objects, and shapes, which define the geographic features on the map. Shapes can be points, lines, or polygons, and they store attributes such as coordinates, names, and colors. Additionally, PTM files may contain overlays, which provide additional data or context to the map, such as traffic information or demographic data. The hierarchical structure of PTM files facilitates efficient access to specific map elements, enabling users to navigate and customize maps with ease.

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