Tower Modeler
The Tower Modeler generates a true 3D model based on the data from the Tower Profiler. This feature suitably models the tower to reflect back-marks, butt and lap joints, actual member and joint sizes, and implement any changes in an interactive mode.

Minimal Input
Project Configuration Data (Default)
Data Generated by System
Interactive Facilities
Straightening Members Horizontally/Vertically

Minimal Input
Input data is read directly from the Tower Profiler. This results in a significant reduction in time for modeling the tower. Data read from the database comprises of:

• 3D geometry (coordinates and connectivity)
• Section sizes and properties

The following minimal input (through an intuitive GUI) is required, since the data in the Tower Profiler corresponds to a single line 3D model.

Control point widths: (CG-CG, Back-Back, Bolt-Bolt), at slope change points. These are typically specified at the Base, Hamper, Peak and Arm Ends. The flexibility of iTOWERS Detailer comes into the picture when using a combination of the above control widths. This results in automatic regeneration of the tower to suit the desired dimensions. This feature normally does not require any user input and is provided to offer increased flexibility to the user.
Body and Leg Extensions: iTOWERS Detailer automatically lists out the body and leg extensions of the tower that was modeled using iTOWERS. The user has to select a combination of these with the basic tower body.

Project Configuration Data(Default)
This data is standard for a project, which might include several towers and normally never needs to be edited.

• Standard piece lengths
• Standard Butt joint gaps
• Standard shift values, to be applied at dense joints
• Bolt position preferences

Users may specify with reference to connections, the preferred bolt locations such as:
Redundant on second back mark, main diagonals on first back mark etc., through a table. A default table is already available, which can be edited by the user, through a GUI.

• Joint preferences
• Standard, Minimum and back-mark values for angle sections.
• Standard bolt pitch, clearances.
• Standard bolt lengths and grip lengths.

Data Generated by System
Due to the intelligence built into iTOWERS Detailer, based on standard detailing practices, a large amount of data, which usually needs to be input, is generated by iTOWERS Detailer

• Piece length calculations:
  iTOWERS data is in a form suitable for analysis, with nodes and member information. iTOWERS Detailer unifies these into appropriate physical members.
  
  
• Location of butt and lap joints.
• Based on standard piece length, and change in section.
  
• Member support information:
  Based on the physical support requirements, iTOWERS Detailer determines supported member information. Thus at any joint, iTOWERS Detailer already knows which member is supported on which member, and need not be input.
  
  
• Assignment of member levels:
  On a given surface,iTOWERS Detailer determines the relative levels of each member, relative to the main legs, and assigns a relative level offset.
  
  
• Member orientation and heel position:
  These are determined, by iTOWERS Detailer automatically.
  
  
• Connection data, such as bolt numbers, diameter.
• Item numbering based on class, length, and connection details

Interactive Facilities
The true tower 3D model generated, is generally acceptable for the majority of towers. However, a number of interactive facilities are provide to edit the model. The changes are carried out automatically on the other faces, based on a symmetry toggle by the user.

Undo and Redo
Joint Modification
Panel Modification
Member Details
Other Facilities

•  Undo and Redo
  Multiple levels of ‘Undo’
  All or any changes done in a particular setting can be completely undone, by a single undo command.
• ‘Redo’ facility
  Any action that is undone can be redone.

Panel Modification

• Panel Subdivision:
  Any selected panel can be subdivided into equal parts. This is in addition to the divisions already done by the system based on iTOWERS.
• Panel Width Change:
  Any panel width can be changed if it is at a control location such as base, hamper, at any stage. The widths of all points in between are suitably readjusted.

Member Details
Any member can be modified for the following through a dialog box, just by changing the default entries.

• Member orientation and heel position, termination at each end
• Section size
• Backmark location from the heel, can be changed by just specifying a
           new value
• Number of bolts, diameter of bolts at each end
• Bolt shear edge, pitch at each end.
  

Other Facilities

• Member end Shift
  The ends of any member can be shifted along its supporting member, by any required distance. Thus, after viewing the assembly drawing, the user may shift a member end, to avoid any cuts.
• Shifting of SOP
  The SOP of a member can be changed to any Standard Back Mark of Supporting member

Straightening Members Horizontally/Vertically
Any redundant member can be made horizontal (on the tower face) or vertical (on the arm face)

• Joint Shifting:
  A group of members at a joint can all be shifted, by using the joint shift facility.
• Member Addition and Deletion:
  Members those, which are not required in analysis stage and required only in detailing purposes can be added or deleted from any part of the tower.

Creation of Local Back Marks:

Local back marks in addition to the standard back marks of Connecting and Supporting members can be specified by the user iTOWERS Detailer however checks for the safety of the local back marks specified by the user.