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Opens the History Visualizer, which displays the construction history of objects in your scene as a node graph of connected input geometry, tool commands, and output nodes.

Input geometry, tools, and the output of tool commands display in the graph area as a series of connected nodes. Construction history flows left to right from the input geometry nodes along the connections to the tool nodes, and then to the output nodes resulting from commands.
See Construction history and metadata for information about construction history.
History Visualizer icon bar
- Suspend History - Suspends construction history updates for picked objects. (also available in the context menu).
- Delete Selected - Deletes the selected construction history and leaves the input geometry unchanged. This does not delete the actual objects. It is the same as picking the object and choosing Delete > Delete Construction History.
- Displays the history graph of all the objects in the scene (also available in the More menu).
- Displays the history graph of picked objects (also available in the More menu).
- Focuses the graph view based on the layers selected in the Object Lister or Layer Bar. For example, selecting a layer automatically focuses the graph view on nodes in the selected layer (also available in the More menu).
- Filter - Lets you filter the graph view by node type, such a tool node or input node. When you load a WIRE file, the History Visualizer populates a list of tool nodes contained in the file. By default, all of the nodes are on for filtering. To focus the view on a specific tool node, turn off the filtering for all other tool nodes. See Workflows: Basics.
- Settings - Access the Settings menu. See History Visualizer Settings menu.
- More - Access the History Visualizer More menu. See History Visualizer More menu.
- Fit Window - Adjusts the width of the graph view so that all node connections from left to right get displayed. Depending on the complexity of the history graph, some nodes may not be visible (also available in the Settings menu).
- Reset Node Layout - Resets the graph view to the default node layout (also available in the Settings menu).
- Zoom View - Click-drag on the icon to zoom the view. Drag to the right or upwards to zoom in, left or downwards to zoom out.
- Pan View - Click-drag on the icon to pan the view. The panning direction follows the mouse.
Workflows: Basics
By default, the History Visualizer displays a graph view of the construction history for all the objects in the file. Only objects with construction history appear in the graph.
Use the All, Picked, and By Layer buttons at the top of the graph window to focus view.

Use the tools on the right side of the graph window to navigate inside the window.


When selecting nodes in the graph, note that:
Trigger a query edit by doing one to the following:
The tool control window opens from which you can modify the tool settings.
No objects are deleted in the viewport when you revert or delete history.
Revert history - Revert History removes history and reverts any updates the tool made to the geometry.
In the graph, select a tool node and do one of the following:
Delete history - Delete History removes the history and keeps the updates the tool made to the geometry. Select the node and click the
icon or select Delete Selected History from the More menu.
Use the options in the Rebuild options from the More menu to suspend and resume all or selected tool nodes. You can also click the Suspend History icon in the toolbar.
Click the Filter icon
and choose nodes and node networks of interest. When a filter is on, the graph view automatically zooms to these nodes and associated networks, while dimming the display of other nodes in the graph. Filtering the graph view helps you isolate nodes for applying presets, replacing inputs, or reverting history.

There are several way to arrange nodes in the History Visualizer workspace to keep it neat and make best use of the available space.
To:
You can align nodes vertically in the graph.
Drag a node toward the node directly above it until a green spacer appears, then the release it.
The node snaps into vertical alignment with the one above it.
Workflow: Modify history by replacing inputs
You can modify the construction history of an object by substituting the connected input nodes of geometry with other geometry in the scene. The promptline assists you in selecting valid input geometry to make the replacement.
Do one of the following:

Or

You can replace multiple inputs to any multi-surface tool, such as the Surface Fillet or Freeform tool.
Do one of the following:

Or

Workflow: Create and assign construction history presets
Presets save the construction history of existing tool nodes, which you can then apply to other tool nodes of the same type. Using presets lets you quickly and consistently regenerate commonly used geometry.
See About construction history presets for more information about presets.
Before creating history presets, you can set a file location to store them. By default, Alias automatically creates a Preset directory in the C:\Users\username\Autodesk\Alias folder.
Initially, all presets you create are saved to this default preset directory.
You can add more local or network file locations as preset directories, and set one of these directories as the designated location for saving presets. You can apply presets from any directory you add as preset directory.
To add a file location as preset directory, select Set Preset Directories from the More menu.

Click the Add Directory
icon, and then browse to the location you want to set as a preset directory.
To set it as the designated preset directory, click to the left of the new file location.

All new presets will be saved to this location.
To remove a preset directory, either right-click and select Remove. Or, select it, and then click the Remove Selected icon
.

In the history graph, locate the tool node with the history you want to save as a preset.
Do one of the following:
Right-click the node and select Create New Preset from the context menu.

Choose Create New Preset from the More menu.

Type a name for the preset and click save.
Your preset is saved as a .hprest file in the designated preset directory. By default, the designated directory is located here: C:\Users\username\Autodesk\Alias\Presets.
In the history graph, locate the tool node to which you want to assign a history preset.
Do one of the following:
Right-click the node and select Assign Preset from the context menu.

Choose Assign Preset from the More menu.

The Presets window displays the presets contained in the designated directory.

Select a preset to apply.

About construction history presets
History presets provide a way to save and reuse Alias tool settings. Presets save the construction history of existing tool nodes, which you can then apply to other tool nodes of the same type.
Using presets lets you quickly and consistently regenerate commonly used geometry. Sharing presets across a network not only helps your design team to increase workflow efficiency, but also they can help maintain surface modeling standards across teams.
You can create history presets from tool nodes that have active construction history. The tool node must be currently in the History Visualizer graph before it can be the source of a history preset. After you create a history preset from an active tool node, the preset is independent of its source tool node.
Presets contain all the tool node's active construction history, meaning all the tool settings used to generate the output geometry. Information about the input geometry connected to the source tool node is not captured in the preset.
You can apply history presets to tool nodes that have active construction history and are of the same type as the source tool node. For example, you can only apply a history preset that was created from a Surface Fillet tool node to another Surface Fillet tool node.
You can create a History Preset from the following tools:
| Surface tools | Surface Rolled Edge tools | Curve tools | Transform tools | Object Edit tools |
|---|---|---|---|---|
| Revolve | Fillet Flange | Curve & COS Offset | Array | Align |
| Skin | Tube Flange | Freeform Curve Blend | Path Array | Align 2008 |
| Rail Surface | Tubular Offset | Curve Fillet | Surface Array | |
| Profile | Panel Gap | |||
| Square | ||||
| Surface Fillet | ||||
| Symmetric Fillet | ||||
| Freeform Blend | ||||
| Profile Blend | ||||
| Multi-Surface Draft | ||||
| Corner Blend | ||||
| Stitch and Seam | ||||
| Surface Offset | ||||
| Project |