Add Slice dialog (main tools for point cloud management)

Add Slice dialogue for main tools of point cloud management

Undet slice menu functions:

	[Set project…] – Opens Undet point cloud project (*.IPCP) file.
	[New] – Opens a standalone Undet point cloud project creator (Undet Indexer).
	[Close Project] – Close active Undet point cloud project.
	[Scan Position Manager] – Opens scan data management settings.
	[Sort images] – Sort generated raster images according to their size; larger images are sent to the background, and smaller ones are brought to the forefront.
	[Hide selected images] – Hides selected raster image.
	[Show all images] – Shows all created raster images.
	[Raster manager] – Opens raster manager dialog.
	[Load 3D] – converts the Undet project file into an RCP file and loads 3D point clouds. *First time converting the Undet project file into an RCS file is a time-consuming process, which can last up to one hour, depending on the initial Undet project file.
	[WS] – Opens and locates Undet Browser view by picking any point in the point cloud image.
	[Options] – changes “Add Slice” dialogue units from Metric to Imperial or vice versa.

The Undet software generates raster images in the selected Revit view (floor plans, elevations, sections….)

Raster images can be generated according to Revit cut plane location and direction.

Scan positions dialog

Raster images from point clouds are generated from enabled scan data that can be grouped, and their visibility is managed in the Scan data dialogue.

Selected scan data files can be grouped into logical groups by clicking the right mouse button or selecting the “Add” icon from the dialogue menu.

Scan file visibility can be controlled for each file or group.

For example, you need to disable inside scans to create a clear building elevation raster image.

BB – Undet Scan Positions and Call Undet Browser

Activate the ‘BB’ Scan Position to reveal Scan Station markers represented as ‘pyramids’ in your model. Click on these markers and utilize the ‘Call Browser’ function to open the scan position in the Undet Browser.

Raster manager dialog

All generated raster images in the selected Revit view can be managed in Raster Manager.

Generated raster image visibility can be controlled for each file.

Revit sections (for example, floor plans at level 1) can be combined with multiple raster images.

When “Track selection” is turned on, the selected raster image location can be tracked and identified.

Add slice dialogue function and control

|Raster image generation settings|		Point cloud slice (cut plane) reference elevation
		Manually edit point cloud slice (cut plane) thickness from which raster image is generated
		Set point cloud slice (cut plane) offset from Revit section view reference
		Reads and updates raster image generation settings for Floor view by initial Revit section view range parameters (these parameters should be manually set during Revit project preparation)
		Reads and updates raster image generation settings for the center (cut plane) view by initial Revit section view range parameters (these parameters should be manually set during Revit project preparation)
		Reads and updates raster image generation settings for the Ceiling view by initial Revit section view range parameters (these parameters should be manually set during Revit project preparation)
		Raster images can be generated outside of the Revit view range according to cut plane location and direction (see example below)   In the floor plan view, raster images can be generated by choosing Center view (cut plane line), Floor view, or Ceiling view. In section or elevation, raster images can be generated by choosing Center view (cut plane line), Forward View, or Backward view.
		Sets resolution in millimetres to generate a raster image   (see example below)
		Generates raster image from the first visible points according to view direction and location (see example below)
|Coloring settings|		Raster image colouring settings selection   (see example below)
		A different colouring pallet can be used to get the clearest view (see example on pages 22-23 below)
		Pallet colouring intervals count adjustments.
		Coloring Interval size manual adjustment when Coloring by plane is selected
|Decimating and transparency|		Generates raster images from decimated points clouds mostly in cases where you need to preview a raster image faster or track changes in settings faster (see example below)   Decimated point cloud density increases from left to right
		Makes “white” raster image pixel transparent (see example below)   It is recommended to use only with sections or center “cut plane”
|Action buttons|		Generates preview raster image for the entire project
		Generates rectangular-shaped raster image in the defined area (see example below)
		Generates screen size/area raster image (see example below)
		Updates selected raster image with new parameters
		Option where to display raster image on the model (foreground and background)

Add slice dialogue settings examples

Action buttons (Screen and Defined Area) operational examples

Raster image generation region can be selected according to two choices:

“Screen Area” by window extents

Screen Area raster generation extends to the area marked in RED

Generated raster image zoomed out marked in RED

“Defined Area” by rectangle

Defined Area marked in RED

Created raster images by defined area marked in RED

Raster image resolution examples

Raster images can be generated with different resolution settings. Resolution selection is a trade-off between speed and a clear view. To understand objects, we recommend using a 20mm resolution; a more detailed resolution should be chosen according to object size and needs.

1 mm	5 mm	10 mm	20 mm

20 mm	10 mm
5 mm	1 mm

Raster image colouring settings examples

Floor plan raster image colored by Intensity	Floor plan raster image colored by Plane
Elevation raster colored by RGB	Elevation raster colored by plane
Elevation raster colored by Intensity

View direction settings example

Raster images can be generated according to Revit cut plane location and direction:

In the floor plan view, raster images can be generated by choosing Center view (cut plane line), Floor view or Ceiling view.

In section or elevation, raster images can be generated by choosing Center view (cut plane line), Forward view or Backward view.

Generated raster images from decimated point cloud examples

Generated raster images from decimated point clouds are mostly suitable for preview:

Raster image (5mm resolution) with enabled “Decimate” function |Low density|

Raster image (5mm resolution) with enabled “Decimate” function |Maximum density|

Raster image (5mm resolution) with disabled “Decimate” function generated from all points

Raster images transparency function examples

Raster images created with the transparency option are much heavier and require more time to zoom in / out, we recommend to use this option only when needed in specific situations.

Floor plan raster image	Center Cut Plane raster image
The Floor plan raster image combined with the raster image of the Cut Plane center. Cut plane raster updated with “Transparent” option

Raster image example with enabled calculate distance function

The “Calculate distance” function generates a raster image from the first visible points according to view direction and location. This function is a trade-off between speed and a clear view. To generate such raster images takes more time than standard raster images.

For example, to get a clear view of a table, we must create a raster from the first visible points and eliminate points under the table.

Raster image created without “Calculate distances” option

Raster image created with “Calculate distances” option

VIDEO | Introduction to Slice Manager in Undet to create raster images from point-cloud