Place Crosswalk
Place Crosswalk tool can be used for the digitization of crosswalk paintings on a road. The tool supports the placement of shapes for the paint lines that form a crosswalk. It relies on crosswalk templates that are defined in the Road paint markings / Crosswalks category of TerraScan Settings.
When a crosswalk is digitized, the user defines the 4 outer corners of the crosswalk drawing. Then, the software derives the number of paint lines and adjusts them evenly between the outer boundaries. The width of the paint lines is defined in the template. The spacing between the paint lines is slightly adjusted, so it may differ a bit from the template definition. The length of the paint lines is defined by the first two data clicks and equal for all shapes. Therefore, if a crosswalk drawing includes paint lines of different length, you may use the tool several times to place the shapes. The lines of crosswalk paintings may also be transversely displaced. Then, the tool derives the displacement from the 4 data clicks defining the corners.
To place a crosswalk drawing:
1. Select the Place Crosswalk tool.
The Place Crosswalk dialog opens:
2. Select a Crosswalk template and define settings.
3. Define the 4 outer corner points of a crosswalk with data clicks as shown in the sketch above (red circles and number 1-4 indicate the data clicks).
The shape of the crosswalk is displayed at the given location.
4. Place another data click inside the CAD view in order to confirm the crosswalk drawing.
This creates individual shape elements for each paint line of the crosswalk. You can modify the shapes using CAD tools.
SETTING |
EFFECT |
|---|---|
Crosswalk |
Name of the crosswalk template. Alternatively, Free definition can be selected in order to define the crosswalk shape individually. |
Width |
Width of the paint lines forming the crosswalk. This is only active if Crosswalk is set to Free definition. |
Spacing |
Distance between the paint lines of the crosswalk. This is only active if Crosswalk is set to Free definition. |
Elevation |
Determines how the Z value for the crosswalk drawing is defined: •Mouse click - the current mouse pointer elevation is used. This results in a 2D-like drawing. •Fit using point cloud - a single plane equation is used to fit the crosswalk drawing to the point cloud. This results in a 3D-like drawing. •<surface model> - a single plane equation is used to fit the crosswalk drawing to a surface model loaded in TerraModeler. This results in a 3D-like drawing. |
Class |
Point class(es) from which to derive the elevation of the drawing. This is only active if Elevation is set to Fit using point cloud. |
|
Opens the Select classes dialog which contains the list of active classes in TerraScan. You can select multiple source classes from the list that are then used in the Class field. |
