BASE Editor : Commands : Create TIN
 

Create TIN

 
Defining Maximum Points Per TIN

 

Menu

Tools > TIN > Create TIN

Tool

Pop-up

attribute band > Create TIN (Layers window)

A Triangulated Irregular Network (TIN) is a triangulated surface constructed from input data containing 3D data points.

TINs can be created for raster surfaces, point clouds and feature layers containing features with a depth/height value. By default, these layers can contain up to 3 million points to be included in the TIN. Depending on the resources of the computer that you are using, the number of layer points that can be included in the TIN could be much greater than the current limit value. This value can be changed using the Defining Maximum Points Per TIN option in Tools > Options. See Options for more information.

A TIN can be created for all data points in a data layer, or for the boundary of the data. You may choose to generate a boundary TIN if the source is a raster surface which will exceed the limit of points supported for a single TIN.

If the TIN is created from a surface layer, the TIN will be constructed using attribute values of the selected layer.

If the TIN is created from a feature layer, the TIN will be constructed using the features listed in the elevationlookup.xml system file. This file can be found at:

C:\Program Files\CARIS\BASE Editor\<version>\modules\BASE Editor\support

The list of features can be modified to include any point, line or area feature with a depth or height attribute, if necessary.

You cannot create more than one TIN for each layer in a dataset unless one is a regular TIN and the other is a boundary TIN.

TIN Layers

The new TIN layer will be named according to the dataset from which it was created and will be displayed as a separate data source in the Layers window. This layer will contain two child layers:

• one for the TIN itself, named for the layer from which it was created, and

• one named TIN Editor, which allows you to perform various edits on the TIN, including the creation of features. When edits are applied to a TIN, a tools file (.tls) is created/updated, recording the edits.

These layers are not saved when you save the session; you must recreate the TIN each time you open the data. If edits were previously applied to the TIN, they will be reimplemented using the .tls file when the TIN is recreated.

If the TIN will be cut, it is recommended to remove long edges.

Related commands:

• Create Boundary TIN

• Long Edges (TIN)

• Apply Feature Layer to TIN

• Generate TIN Coverage Boundary

• Interpolate Surface

• Digitize TIN Feature

• Edit TIN Feature

• Delete TIN Feature

• Update TIN

• Reset TIN

Procedure

1. From the Layers window, select a layer containing elevation values.

2. Select the Create TIN command.

The TIN layer is created and added to the Layers window as a new layer.

3. Refresh the Display window to view the TIN.

You can edit the appearance of the TIN using the Wireframe properties in the Properties window when the TIN attribute layer is selected.