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Point Cloud Display Style
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Point Cloud Display Style
Ribbon: Point Clouds > Settings > 
View Mode
Menu: Point clouds > 
View mode
Toolbar: Point clouds >
Functional toolbar Properties – Visualization – Change visualization > 
button
Command line: NPC_VIEWMODE
The command opens a dialog box that allows you to stylize a point cloud in accordance with the values of these or those attributes of this cloud. In fact, the command paints each cloud point in accordance with the attribute value in this point. The user selects the attribute by stylize by. In case the necessary attributes are present in the cloud, stylization is possible by:
· color;
· intensity;
· class;
· echo number;
· source ID.
Also, you can color point cloud by selected color or cloud elevation (along the Z axis).
Options:
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Point Size: |
The size of points in cloud in pixels. The size of deviation and normal vectors also depends on this parameter.
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Coloring type: |
The list of available attribute values. |
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A drop-down list of cloud attributes available for stylization. The number of attributes in the list depends on which of them were imported together with the cloud from the scan file. |
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Resets to default values the Number of Ranges fields when coloring by height or intensity, as well as colors when selecting the type of coloring by elevation, intensity, echo number or color. |
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Number of Ranges: |
The number of ranges of the same color into which the entire cloud will be divided when coloring. This field is available when coloring by elevation, intensity, or deviation value. After entering a new value in the Number of Ranges field, click the Update button to recalculate ranges.
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Updates the list of colors according to Number of ranges. |
Color the cloud according to points color in the source file.
Coloring depends on the Z-coordinate value in each point of cloud.
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Coloring based on the intensity of the reflected pulse. Click Bounds button to open chart of distribution intensity. You can exclude the part of low or upper bound using sliders.
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Color the cloud according to point classes. Points can be classified into a number of categories including bare earth or ground, top of canopy, and water. This coloring type may color the cloud with the Standard LAS Classification. Unchecking the box next to the class allows you to disable the display of this class points in the drawing. |
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It is impossible to disable the display of classes and changes in their color, if classes were associated with layers in the document.
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Such association occurs, for example, when importing point clouds with Auto fill code layers checkbox enabled.
You can disable the display of class points associated with layers by disabling the display of layers in the Layers dialog |
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Color cloud according to reflection number of laser ray obtained as a result of scan. It is possible to disable visibility of points of any of reflection numbers by unchecking the corresponding box. |
Coloring all cloud points by selected color.
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Coloring point cloud according to a unique source scan ID. One cloud can be formed as a result of several scans of one and the same object from different points. This type allows you to color the cloud points depending on the identifier of the scan source. Program selects color for every source automatically.
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Renders the direction of cloud point normals (Normal attribute), if present in the cloud. It is possible both to color the points depending on the normal direction, and to directly display the normal vectors.
Cloud points are colored according to the direction of their normals.
Normals are created by cloud triangulation commands, features recognition commands, and fitting commands. Normals may not always be calculated correctly. In this case, it is recommended to recalculate the normals.
When the Halfspace normals box is checked, all collinear normal vectors begin to be displayed in the same color. So coloring does not distinguish between normals pointed in exactly opposite directions. This assigns them color equal to the interpolation of the colors of the axes of the current UCS. Points with normals collinear to a particular coordinate axis will have the color of that axis.
You can check the Normals as vectors box to display the normal vectors, and not just color the points of the cloud according to the directions of the normals. The size of the vectors on the screen depends on the size of the cloud point (Point size field). Normal vectors are only displayed when using DirectX as a hardware graphics accelerator.
The Deviation value coloring type visualizes the size and direction of deviation of cloud points (the Deviation attribute) from the reference model (its vector representation or another cloud). Vertical application commands such as Compare Point Clouds can be used to calculate deviations.
The Bounds button displays the histogram of deviations with possibility to cut boundary values.
To disable the display of cloud points with deviations exceeding the limits of the allowable range, adjust the range limits with the sliders and check the Crop points box. When the box is checked, points that do not fall into the vicinity of the set deviation error (black) will be cut off regardless of the position of the cutoff boundaries.
The Feature type and Feature coloring become available for point clouds in which features have been recognized by geometry search commands (pipelines, pipeline elements, planes, plane and pipe elements). These coloring types are designed to visualize such features in the cloud.
