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Month: December 2015

Use the Map Suite GIS Editor to View, Edit and Create Mapping/GIS Data

The Map Suite GIS Editor lets you design stunning maps, perform geo-analysis and visualize your data. Powerful enough for professional GIS technicians yet accessible enough for nearly anyone who needs to create a map, the GIS Editor is designed as a single-application solution to all of your GIS visualization needs.

You Can Use the Map Suite GIS Editor to:

• Visualize data, statistics and trends geographically
• Design, style and label rich and detailed maps
• Integrate data from a variety of sources, including Web Map Services
• See the data attributes contained within your data
• Draw right on the map, edit and create feature data
• Analyze and geoprocess your data
• Re-project your map data
• Create custom scripts in Ruby, Python, and C#
• Make your maps publication-ready with titles, legends and annotations

The GIS Editor is a free open source GIS tool. Continue reading

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Using Topology Rules for Data Integrity

Topology refers to the relationship between lines, points, and polygons. Topology can be very useful in GIS as it allows users to clean up data or to modify geometries to comply with different rules and restrictions. Topology helps us to better analyze data and answer a number of questions such as:

Which parcels of land are adjacent to each other?
Which roads are connected to which?
Is this house within the property line?

Topology also helps us validate data to prevent any gapping issues, etc. Continue reading

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Understanding Map Projections

What are map projections and why should you care? Projection is a method of representing a spherical body (such as the Earth) on a two-dimensional surface (such as a computer screen). There are many different projections available, each of which represents the spherical curves of Earth in different ways.

Because every projection distorts the data in some areas to a certain degree, choosing the right projection for the maps you want to view is important. For example, if you will be creating maps of a very specific local region of the United States, you might want to use a State Plane projection which focuses on that region. Continue reading

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Routing with OpenStreetMap Data

What is routing? Routing refers to the process of finding the best path in a network. Most commonly, routing is used in the context of finding the shortest or fastest path from A to B. However, routing can also be applied to other networks such as gas and oil pipelines. There are several components when it comes to routing, but data is key! If you want to route you must have routable data. For detailed information about the concept of routing, take a look at this Wikipedia article. Continue reading

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