Dividing channel features
The Divide Channel tool allows you to split an existing polygon feature into a specified number of sections. Each section maintains the attribute information from the feature you first selected. For example, a typical use of the tool would be to split an existing dredged channel into multiple channel features (the tool operates the same with any polygon feature).
- Start ArcMap.
提示:
If the ArcMap - Getting Started dialog box appears, you can open a new or existing map document. You can also check the Do not show this dialog box in the future check box and click Open.
- On the main menu, click Customize > Toolbars > Production Editing.
- On the main menu, click Customize > Toolbars > Nautical.
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Click the Production Start Editing button
on the Production Editing toolbar.
注意:
The Manage Features and Create Attributes, Update Attributes, or Metadata Attributes windows automatically appear when you start an edit session using the Production Start Editing tool.
提示:
If the Create Attributes, Update Attributes, or Metadata Attributes window does not appear when you start an edit session, click the Show/Hide Attributes button
on the Manage Features window.
- Select the polygon feature you want to divide into multiple parts.
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On the Nautical toolbar, click Nautical > Divide Channel.
If you want to specify a value other than the default value of four channels, continue to step 7. If you accept the default value, continue to step 13.
- Press the D key.
The Divide Channel Settings dialog box appears.
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Type the number of channels to use in the Divisions text box.
The valid range of channel divisions is 2–20.
- Type the number of search pixels to use in the Search (pixels) text box.
The valid range of pixels is 1–100.
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Choose the divide method.
If you choose the Theissen method, the Resolution slide bar is activated.
- If you choose Theissen method, move the Resolution slide bar to increase or decrease the number of buffers around the line.
- Click Continue.
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Define the anchor point by clicking one of the selected feature's highlighted corners.
注意:
The channel needs to be defined in a clockwise direction; otherwise, the channel is automatically reordered clockwise from the anchor point.
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Repeat step 13 for the second, third, and last points.
This is an example of selected corners:
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Click once more on the selected feature to continue.
注意:
You can also press the F2 key.
The Divide Channel message box appears.
- Click Yes to start the dividing process.
The selected feature is divided into the number of channels specified.
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You can press the ESC key or click another tool to terminate the process.