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Point Cloud View Mode
Ribbon: Point Clouds > Settings > 
View Mode
Menu: Point Clouds > 
View Mode
Toolbar: Point Clouds >
Functional bar Properties – Visualization section – View Mode parameter > 
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 displayed size of points in cloud in pixels. The size of deviation and normal vectors also depends on this parameter.
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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.
When you select Coloring type – Code, a right-click menu is available that allows you to control the display. If you deselect all classes, you are prompted to confirm whether to disable cloud display. |
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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. |
Scan Color
Stylizes the cloud to match the color of the points in the original scan file.
Elevation
Stylizes depending on the Z coordinate value at each point of the cloud.
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Intensity
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Cloud view mode based on the intensity of the reflected pulse (Intensity attribute). The Bounds button opens a dialog box with an intensity distribution diagram. By moving the slider, you can exclude part of the top or bottom border from the styling process. This can be useful if there are low-information zones in the cloud (with very low or high intensity).
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Code
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As a result of the final processing of the scan results, cloud points can be classified in a certain way, for example: ground, vegetation, buildings. This display style allows you to color the cloud according to the standard LAS classification or according to a user-created classification. Unchecking the box next to a class allows you to disable the display of points of this class in the drawing field. |
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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 |
Echo number
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Color a cloud according to echo 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. |
Color
Coloring all cloud points by selected color.
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Source ID
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As a result of each scan, cloud points are assigned a unique identifier. One cloud can be formed as a result of several scans of the same object from different points. This type allows you to color cloud points depending on the scanning source ID. The color of the points for each scanning source is selected automatically by the program.
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Normal
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 normal.
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.
Deviation value
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.
If, in addition to the deviation values, the directions of deviations were also calculated, then the Display vectors checkbox will be available for the Deviation coloring type.
To display the directions of deviations on the screen, check the Display vectors box. The size of vectors on the screen depends on the size of the cloud point. Direction vectors are only displayed when using DirectX as a hardware graphics accelerator.
Feature and Feature type
The Feature type and Feature coloring are created by geometry search commands (planes and pipelines in a point cloud). These coloring types are designed to visualize such features found in a point cloud by these commands.
