ArcMap allows you to create thematic maps = maps that show the color of a feature or the size of a feature as a function of the underlying feature attribute data. Your choice of color, size, and underlying classification system is critical to create a truly meaningful map. Do NOT simply accept the defaults that ArcGIS provides to you. Always create your own classification system that is appropriate, objective, and meaningful for your data your map, and your analysis.
In this tutorial, you will learn how to:
• Create custom classes in a legend
• Change class values
• Change class colors

Published in GIS

Group layers contain other layers. This gives the users a better organization of the layers in the map. They have similar behavior to that of single layers in the table of content. Hence turning off the visibility of a group layer will turn off the visibility of all the layers within the group.
This tutorial covers the steps of:
• Adding a group layer to the map
• Adding a layer to the group

Published in GIS

Group layers contain other layers. This gives the users a better organization of the layers in the map. They have similar behavior to that of single layers in the table of content. Hence turning off the visibility of a group layer will turn off the visibility of all the layers within the group.
This tutorial covers the steps of:
• Adding a group layer to the map
• Adding a layer to the group

Published in GIS

Layouts are a way of allowing you to make professional quality presentations. A page layout (often referred to simply as a layout) is a collection of map elements laid out and organized on a page, designed for map printing. Common map elements that are arranged in the layout include one or more data frames (each containing an ordered set of map layers), a scale bar, north arrow, map title, descriptive text, and a symbol legend. You can also include tables and charts in a layout as well.

This tutorial focuses on describing the creation of a map layout without using an existing map template. Also will cover the addition of:
• Map Title
• Legend
• North Arrow
• Scale Bar
• Text

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A spatial bookmark identifies a particular geographic location that you want to save and reference later. For example, you might create a spatial bookmark that identifies a study area. As you pan and zoom around your map, you can easily return to the study area by accessing the bookmark. You can also use spatial bookmarks to highlight areas on your map you want others to see.

 

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The Measure tool lets you measure lines and areas on the map. You can use this tool to draw a line or polygon on the map and get its length or area, or you can click directly on a feature and get measurement information.

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In ArcMap 10 You can explore a map in several ways. The Tools toolbar contains frequently used tools that let you navigate around the map, find features, and get information about them. The Tools toolbar contains eight buttons that provide zooming functions and allow you to define a custom view of the layer data.
In this tutorial, you will get to know some of the most useful ones:

  • Zoom In/Out
  • Pan
  • Fixed Zoom In/Out
  • Full Extent
  • Zoom to Previous/Next extent
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A layer serves as a shortcut to data. It also tells ArcMap how the data should be drawn. You can store layers in a place that is accessible to everyone in your organization who needs a particular set of data; the data will be displayed the same way for each of them.

In this tutorial, you will learn how to:

  • change layer color
  • change layer symbol
  • change display order
  • show and hide layer

 

Published in GIS

There are a couple of ways that you can save files/project so that you can re-use them later. The first option is to simply save the ArcMap document (an .mxd file.). Before saving your map, you ought to think a little about your folder structure.

In this tutorial, you will learn how to first save the map/project in .mxd file, then how to open an existing file.

Published in GIS

ArcMap10 can work and contain many layers of data. It can import a wide variety of GIS data types, including feature classes from a geodatabase, shapefiles, layer files, rasters (images), and CAD files, to name only a few. Often, GIS data obtained from public sources will already be in one of these formats.

In this tutorial, you will learn how to add data to a GIS project to help you start creating your own map projects.

Published in GIS
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