lab3Chapter 16

lab3Chapter 16 - Editingfeatures and attributes Deleting...

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Editingfeatures and attributes 421 - Deleting and modifying features To modify a feature, you add, delete, or move vertices on the feature's edit sketch. If a feature shares an edge or vertex with another feature, you may want to ensure that no gap or overlap results. You can make touching features behave as if they are connected by creating a map topology within your edit session. <Exercise 16a You are the GIS specialist for the city's planning department. To prepare for a meeting of the City Commission, you will make some changes proposed for parcels in a new subdivision. Since the changes are recommendations only, you will not work with the city's live geodatabase, but with a copy designated for planning use. Your first task is to delete two parcels on land the city is negotiating to buy back from \ the subdivision developer. Your second task is to enlarge the boundaries of two parcels to make room for a pond to catch water runoff from a nearby road and sidewalk. The map is simply for discussion, so your edits don't have to be exact. If the proposals are implemented, a licensed survey crew will resurvey the parcels. tart ArcMap. In the ArcMap dialog box, click the option to use an existing map. In the #of existing maps, double-click Browse for maps. (If ArcMap is already running, click eFile menu and click Open.) Navigate to C;\ESRIPress\GTKArcGIS\Chapter16. Click IQa.mxd and click Open. ;$ outlined in black against an aerial photo of the subdivision. You will ~eparcels to be deleted.
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'2~ Click the Bookmarks menu and click First Parcel Site. The parcels are labeled with their ID numbers. (The labels are set to display at scales 0, 1:4,000 and larger.) You will delete parcels 2712 and 2718 in the middle of the display.; 422 Section 6: Creating and editing data 3.. On the Standard toolbar, click the Editor Toolbar button. 4' On the Editor toolbar, click the Editor menu and click Start Editing. The target layer is Parcels, the only editable layer in the map. The task is set to Create New Feature. You can delete selected features regardless of which task is set. ·5' On the Editor toolbar, click the Edit tool if necessary.
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ttiitingfetZtures and attributes 423 :6" On the map, click anywhere on parcel 2712. It is outlined in cyan to show that it is selected. Hold down the Shift key and click parcel 2718 to select it also. The small blue "x" in the center of the selected parcels is called a selection anchor. Every selection in an edit session, whether of one feature or many, has one. (Selection anchors ,,are used to rotate and scale features, which you won't do in this exercise') With parcels 2712 and 2718 selected, click the Delete button on the Standard toolbar.
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424 Section 6: CreaTing rind editing data ~8· On the Editor toolbar, click the Editor menu and click Save Edits. Now
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This note was uploaded on 09/18/2011 for the course GIS 4043 taught by Professor Cshaw during the Spring '11 term at FAU.

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lab3Chapter 16 - Editingfeatures and attributes Deleting...

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