Introducing Geographic Information Systems with ArcGIS: A Workbook Approach to Learning GIS, 3rd Edition

Understanding the Panning and Other Controls

____ 14. To eliminate any confusion after all that map manipulation, let’s start over: Click File > New, pick the USA template category, click SouthwesternUSA, and click OK. Again, if asked, don’t save your previous layout. In Data View, zoom in on Colorado, as before. Change to Layout View. (For each of the following operations, read the ToolTip (and maybe the status bar, depending on the ArcGIS version you are using) to see what the button is intended to do. If you want more information remember that the What’s This? tool could be useful.) Using the “hand” icon on the Tools toolbar, pan over to Utah. Get back with the Go Back to Previous Extent button. Now pan the map by dragging it using Pan on the Layout toolbar. Notice this simply moves the entire layout (and adjusts the rulers so that the same ruler numbers intersect at the same geographic features). Return to the original image by using the Go Back to Extent button on the Layout toolbar. Pan again. Go back this time with Zoom Whole Page.

____ 15. The image of Colorado looks crooked on the page. The Albers projection does this for areas not near its central meridian—in this case, 96 degrees west. On about what meridian does Denver lie? _________ degrees. (Hint: check the Status bar). The boundaries of the state are in fact parallels and meridians of the latitude and longitude coordinate system, so it would be nice if they ran east-west and north-south. Fix the crooked image ...