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They can be organised into cells or columns by spreadsheet or database programs. A Comma Separated Value file contains data sets separated by commas, where each new line represents a new database row, and each database row has one or more fields separated by a comma.
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AutoTrace ModeĪutoTrace automatically traces the nodes of a new polyline or polygon over existing features. This is useful when you want to draw perpendicular lines. This restricts new segments 45 degree increments relative to the last line segment. You can draw orthogonal (right angle) polygon line segments when you press the Ctrl key.
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See the Style section on how to change the style for an entire layer. These change the style of selected objects. The buttons in the right section are to modify the style for:. The buttons in the left section are used to draw new features. A utility company may wish to have to group all OS Mastermap together as a single grey background layer.įeatures are created and edited using the Drawing Toolbar:.A local authority should have separate data sets for kerb lines and street furniture which are typically points.However, the user needs to consider if it is good data management for a data set to contain mixed feature types.
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There is a notable difference between MapInfo and other GIS software as a MapInfo table (.tab file) can contain a mixture of object types. Vector data in MapInfo is comprised of points, lines and polygon features. In GIS software such as MapInfo, a layer can only contain the features from one dataset or table. The dataset may either contain raster images or vector data, but not both. Nick’s previous tutorial was on Thematic Mapping with MapInfo and Excel.
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This tutorial by Nick Williams, a MapInfo trainer at Acuity Training, provides an overview of how to create, edit, and convert features within MapInfo.