LiTIN Editor

Description

Provides irregular grid model LiTin for editing operations,provides adding single point, deleting single point, deleting multiple points, adding single fracture line, adding closed area (lake ) Break-lines, Add Double Region (River) breaklines, Delete breaklines, Select Edges, Select Triangles.

Note: Using the model display tool as shown in the figure below, you can display LiTin by model, triangle or point respectively (you can also use the letter key W on the keyboard to switch between different display modes). For easy viewing of editing effects, it is recommended to use the disclosure triangle to display LiTin.

Usage

ClickTerrain > LiTin Editor, the LiTin Editing bar will appear in the current activation window.

Select Edit File

Click Start Editing in the Edit drop-down menu and select the data to be edited.The data to be edited must have been opened in the LiDAR360 software, and only one data can be selected for editing at a time.

Add Single Point

Click the left mouse button to add a vertex and insert a single point into LiTin. The XY coordinates of the point are determined by the mouse click. The sources of elevation values include triangulation surface, maximum surface elevation, minimum surface elevation and user input. This function is suitable for local area editing, intervening in the contour trend of this area.

• Elevation Source: This parameter defines the elevation value of the added point.
  • From Surface (default): The elevation of the insertion point is determined by triangular interpolation.
  • Max Z From Surface: The maximum value of the range of elevation values within this model.
  • Min Z From Surface: The minimum value of the range of elevation values within this model.
  • As Specified: User input custom elevation value.

Delete Single Point

Left mouse click to delete a vertex, delete a single point from the LiTin model, and reconstruct the triangulation network with adjacent points. This function is suitable for local area editing, removing noise points or misclassified points, and intervening the contour trend of this region.

Delete Multi Points

Select an area interactively with the mouse, and the triangulation network points in the area will be deleted in batches, causing local triangulation network reconstruction. It is suitable for local area editing. It can delete noise points or misclassified points in batches according to the polygon range, and intervening the contour trend of this region.

Fill Hole

By interacting with the mouse to select an area, any holes within the selected region will be filled. Note that this operation only supports single-step undo and redo. Any subsequent operations performed after the hole-filling action will clear the undo/redo steps.

Breakline of Water Area

Draw a closed area through mouse interaction, set parameters, and click the Add button to complete the addition.

• Set Elevation: Project the break line point to the same elevation plane, users can manually input or activate the selection button to pick up the points in the scene for elevation setting. The default is the elevation of the last drawn point.
• Minimum Elevation: Project the break line point to the elevation plane corresponding to the lowest point in the area.

Breakline of Gradual River

Draw two riverbank lines interactively with the mouse (they need to be drawn in the same direction), set the parameters, and click the add button to complete the addition.

• Start Elevation Value: This parameter defines the starting elevation value of the river. The default is the elevation of the starting point of the second river bank, and the user can manually input or activate the selection button to select the midpoint of the scene to set the elevation.
• End Elevation Value: This parameter defines the end elevation value of the river. The default is the elevation of the end point of the second river bank. Users can manually input or activate the selection button to select the midpoint of the scene to set the elevation.

Liner Breakline

Draw a PL interactively with the mouse, set the parameters and click the add button to complete the addition.

• Breakline Type: This parameter defines the break line type.
  • Soft Breakline (default)*: Soft break line.
  • Hard Breakline*: Hard break line.
  • Change Elevation: Unchecked by default, available under hard fracture, whether to change the elevation of the fracture line point.
  • Start Elevation Value*: This parameter defines the starting elevation value of the hard fracture. Users can manually enter or activate the selection button to select the midpoint of the scene for elevation setting.
  • End Elevation Value*: This parameter defines the end elevation value of the hard fracture. Users can manually enter or activate the selection button to select the midpoint of the scene for elevation setting.

Delete breakline

Delete the selected break line by mouse interaction.

Select Edges

Select the sides of the triangle interactively with the mouse. The selected sides are displayed in red.

Select Triangle

Select the triangle interactively with the mouse, the selected triangle is displayed in red.

Save TIN Edit

Save editing results to LiTin file.

Cancel TIN Edit

Cancel editing, discard edit result, reload original file to display.

Undo

Undo (Shortcut: **Ctrl+Z**), reverts the last modification. The number of undos is limited to 20 times.

Redo

Redo (Shortcut: **Ctrl+Y**), re-applies the last undone modification. The number of redos is limited to 20 times.

Exit

Click the Exit button on the tool bar to exit LiTin editing. If the editing results are not saved, click the Exit button or click the Edit button to pop up the menu to end editing, the software will pop up the prompt window as shown in the figure below, click Yes to save the editing results and exit, click No to exit directly without saving the editing results, click Cancel returns.