Section View
Summary
The Section View tool in the Subsurface Tools group is the primary way to view drillhole sections in 3D scenes, and it can be used to "flip" through sections within the project. It can also be used in Layouts in ArcGIS Pro to create a printable output map.
The tool opens automatically when you select the Draw on Sections option in the Geologic Interpretations drop-down menu. See the Technical Notes below for more details.
Usage
Enabling Section View on a scene has the following effects:
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The 3D scene extents are temporarily clipped to the current section extents
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The 3D scene is rotated automatically to view the section from the "front" (perpendicular to the section)
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Any data layers in the current scene are "sliced" to the section extents
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The Section View controls appear in an overlay tool to control the current section view
Parameters
| Parameter | Explanation |
|---|---|
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Dataset |
Select the current drillhole dataset, if there is more than one dataset present. |
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Section |
Select one of the sections that exists in the current drillhole dataset. The Up and Down buttons can be used to cycle or "flip" through all the sections in the dataset. The order of sections can be controlled in the Manage Sections tab. |
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Scale |
Define the map scale for a section view. This will dynamically change the zoom level of the section view to the scale entered. In 3D, the scale refers to the camera's height above the ground elevation surface. See ArcGIS Pro Help for more information on Map scales and scale properties. |
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View |
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From |
Select one of the orientations to view the section from. Default is "Front", other options are "Back", "Top", "Bottom", "Left" and "Right". All View From angles are relative to the current section. |
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Lock Camera |
Locks the position of the camera to view the section from the currently selected View From angle. You are able to rotate or move the scene, but the view will return to "section view" as soon as the mouse cursor is released. |
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Perspective |
Toggle on and off between Perspective and Parallel drawing modes. By default, the drawing mode matches the drawing mode of the scene: the Drawing Mode selector is available on the View tab, in the Scene group. There is also a shortcut to this same control on the Create and Modify tabs in the Section Tool. Correspondingly, setting the drawing mode in the Section View will update the drawing mode of the scene, and the change will be reflected in the Drawing Mode selector and in the Section Tool tabs. The Parallel mode is preferred for section viewing and drawing sections, as it is much easier to achieve a precise location. However, if a voxel layer is added to your current scene, the voxel will be displayed inside the section view only when the Perspective toggle is on. If the view is using the Parallel drawing mode, a warning will appear beside the toggle advising that "Voxels are only visible in Perspective mode". Switching to Parallel mode will remove this warning and turn on the voxel visibility. The voxel will be clipped to the extents of the current section – the voxel "slice" will be displayed inside the section view.
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Clip |
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To section extents |
Clip all layers in the current scene to the extents of the currently selected section. When this option is enabled, a Definition Query is created and applied to all the drillhole Feature Class layers: any holes that are not in the currently viewed section wil be deselected/removed. This will ensure that when in editing (drawing) mode, you are not inadvertently selecting or snapping to layers outside the section extents. The Definition Query is updated/changed when you switch between sections, and it is removed when the Clip to section extents option is turned off.
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To section center |
Clip all layers in the current scene to the center plane of the currently selected section. |
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Draw |
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Snap to holes in section |
Toggle this option on to allow for drawing shapes on the section plane by snapping to drillholes that are inside the extents of the current section. The ArcGIS Pro "Snapping" tool will become enabled and all the Drillhole_* layers in the current scene are made "snappable" . To start drawing, use the Draw on Sections option. See the Technical Notes below for more details on drawing on sections. When the Clip to section extents slider is "ON" and the ArcGIS Pro "Snapping" tool is enabled:
When the Clip to Section Extents slider is "ON" state and the ArcGIS Pro "Snapping" tool is disabled:
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Snap to section plane |
Toggle this option on to allow for drawing on the flat section plane that exists in the center of the section extents. In this mode, the ArcGIS Pro "snapping" (reference) grid is turned on (and made transparent), and you will draw shapes on the reference grid, which will be perfectly aligned with the center plane of the section (the origin of the grid and rotation will match those of the current section). All the points that you are drawing will be located on that plane. When you switch the active/current section, the snapping grid is moved to be centered on the new current section. This means that both the origin and rotation of the grid are updated.
For details on the reference grid, check the links below: https://pro.arcgis.com/en/pro-app/latest/help/editing/enable-the-editing-grid.htm https://pro.arcgis.com/en/pro-app/latest/help/editing/customize-the-editing-grid.htm To start drawing, use the Draw on Sections option. See the Technical Notes below for more details on drawing on sections. |
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Show |
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Extents as box |
On the current scene, show the section extents as a red box. Only visible when Clip to section extents is disabled. |
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Center plane |
On the current scene, show the section center plane as a colored rectangle. Only visible when Clip to section center is disabled. This option is on by default, and set to gray. |
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Hole intersections with center |
On the current scene, show the intersection points between the holes and the center plane of the section. Optionally include the Hole ID and XYZ location as labels. |
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Hole intersections with extents |
On the current scene, show the intersection points between the holes and the extents of the section. Optionally include the Hole ID and XYZ location as labels. |
Technical Notes
When you select the Draw on Sections option in the Geologic Interpretations drop-down menu:
- The Create Features side panel opens: all the Geologic Interpretations Feature Classes that are added to the current scene are listed in the Templates tab.
- This sets up the environment to begin drawing geologic interpretations on the current section: select an attribute from one of the available geologic interpretations, click a construction tool or use the default tool, and start drawing. After the feature is edited and saved , the drawing will remain captured in the section plane.
For detailed information on creating 2D and 3D features go to https://pro.arcgis.com/en/pro-app/latest/help/editing/introduction-to-creating-2d-and-3d-features.htm.
Related Topics
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