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Current Horizon/Fault

The current horizon/fault, also referred to as the active horizon/fault, is the horizon/fault to which all picking, editing, deleting, etc. is made. The current horizon/fault name is displayed on the Horizon Picking toolbar. View image

Changing the Current Horizon

There are several ways to select an active horizon for picking.

Click the Pick Horizons button to enable horizon picking mode.
Click on the Active Horizon button to display a drop down list of horizons in the database. Select a horizon.
Click the Horizon tab on the Layer Manager bar and select a horizon.
Click the Show List of Horizons/faults button on the Horizon Picking toolbar. Right-click on a horizon and select Set Current from the menu.
Click on a horizon annotation tag to set the event active for picking.
Toggle the Previous or Next buttons to cycle through events in the database.
To select the horizon currently posted in the Map window, on the Seismic menu bar select Interpret | Select Horizon Posted in Map Window.

Changing the Current Fault

There are several ways to select an active fault for marking.

Click the Mark Faults button to enable fault marking mode.
Click on the Active Fault button to display a drop down list of faults in the database. Select a fault.
Click the Horizon tab on the Layer Manager bar and select a fault.
Click the Show List of Horizons/faults button on the Horizon Picking toolbar. Right-click on a fault and select Set Current from the menu.
Click on a fault annotation tag to set the fault active for marking.
Toggle the Previous or Next buttons to cycle through faults in the database.

You can quickly jump between horizons and faults in the Seismic window by right-clicking on the seismic below the event, and selecting Jump to Horizon/Fault from the shortcut menu. Post the current horizon/fault on the map window by selecting Post | Post Horizon/Fault | Current Horizon/Fault from the Map Menu bar (or press <c> on your keyboard).

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