Create New TIN Ground Model Dialog

Used when creating a TIN ground model in conjunction with Scenario and:

• Network objects to include a selection of cross section lines, bank lines and / or river reaches (InfoWorks network only)
• Include polygons / Exclude polygons to include / exclude a selection of points

A box in which the relevant type of network, that includes the selected objects, can be dropped.

The title of the box is determined by which option (New InfoWorks | Ground model TIN or New SWMM | Ground model TIN ) the dialog is invoked from.

Dropdown list of scenarios available for the selected InfoWorks network or SWMM network. Select the scenario containing objects in Network Objects and Include polygons / Exclude polygons selection lists.

Used to include a selection of network objects in an InfoWorks or a SWMM network, and for InfoWorks networks only; general points, cross section lines, bank lines and river reaches when creating a TIN ground model.

Elevation data of selected points, lines and / or river reach section and bank profiles will be used to create new TIN vertices. Lines and sections will be treated as break lines during the creation process.

Used in conjunction with the InfoWorks network or SWMM network to define areas to be included when creating a TIN ground model.

Only points within the general polygons defined in the selected network will be used when creating the new TIN. The polygon defines the ground model boundary.

Used in conjunction with the InfoWorks network or SWMM network to define areas to be excluded when creating a TIN ground model.

Points within the general polygons defined in the selected network will not be used when creating the new TIN.

Used when creating a TIN Ground Model from an existing Grid Ground Model.

Existing ground model from which new TIN is to be created.

Used when creating a TIN Ground Model from an existing TIN.

Existing ground model from which new TIN is to be created.

Used when creating a TIN Ground Model from external data.

Name - path of external data file

Type - type of external data file

Use lines? - enforce polylines as TIN edges

Used when Thinning a TIN Ground Model.

Check the Show sizes box to enable the thinning options.

Current Size - displays the number of points contained in the existing ground model

Point Reduction - adjust percentage to set how much smaller the new ground model will be

Compressed Size. - an estimate of the number of points in the new ground model