Settings in GTViewer

In GTViewer, the Session Settings Dialog under Options/Settings provides several configurable settings that many users may not be familiar with. In this posting, I will go through each of the settings.

• CoordinateReadout – This setting has been described in other posting, but its value (none, computed or system) determines how GTViewer will display coordinates (on the status bar and on the Attribute Info dialog’s Element tab) and how the Locate XY dialog will interpret values. The default is Computed and changing it to System or None will only last for the current session. However, you can add an entry in the .GTM file to set the default value (use CoordinateReadout in the [General Info] section). See "Associating a Coordinate System with a Dataset" for related information.
  
• Coordinate Readout Precision – This setting determines how many digits will be displayed after the decimal point when coordinates are displayed. You can set it from 0 to 7 digits. The default is one digit; however, if you are displaying coordinates in Latitude and Longitude, you will need more digits displayed. Also, you can set the default precision in the .GTM file with the CoordinateReadoutPrecision entry in the [General Info] section.
  
• Locate Single Find – This setting defaults to No, but if it is set to Yes, it will cause a Query to automatically perform a locate if only one record is found. This mode will essentially save you a couple of clicks if you only get one record returned. The Set As Default button is available to permanently change the default and will apply to all session in the future.
  
• Logging Level – This setting sets the current logging level. The default is 0 (minimum); however, you can set it up to 5 (maximum) to add more information to the log file. It is sometimes very useful to have additional information in the log file when trying to resolve a problem or optimizing performance. See this previous Blog entry on logging more information. The Set As Default button is available to permanently change the default and will apply to all session in the future.
  
• Maximize Initial View – This setting defaults to No, but if set to Yes, it will cause a newly created session to maximize its initial view window. Many users do not use more than one session at a time and the first thing they do is maximize a newly created session’s view. To save this step, you can set the Default to Maximize Initial View. The Set As Default button is available to permanently change the default and will apply to all session in the future.
  
• Mouse Wheel Increment – This setting determines how much the mouse wheel will zoom in or out when rolled. The default is 3 times, but it can be set between 1.25 and 4.0. Increasing the value will make the zoom in and zoom out faster when the mouse wheel is rolled as it will go in larger increments; however, you will not have the same degree of control if you only want to change the zoom by a small amount. The Set As Default button is available to permanently change the default and will apply to all session in the future.
  
• Move Increment – This setting determines how much a selected session graphics element is moved when using the Ctrl-Arrow Key combinations. This action is normally only used for precision adjustments; however, if you need to change the move increment to a smaller or larger value, this setting can be used. The default is 1000 system units. The Set As Default button is available to permanently change the default and will apply to all session in the future.
  
• Open Last File – This setting defaults to No, but when set to Yes, GTViewer will open the last session used automatically when it is started. The Set As Default button is available to permanently change the default and will apply to all session in the future.
  
• Repeating Tabular Components – This setting is provided to give users the choice of showing repeating tabular component on a Single Tab (in a grid) or on Separate Tabs in the Attribute Info Dialog box. The Default is Show on Single Tab, but can be changed to Show on Multiple Tabs. GTViewer originally always showed repeating components on multiple tabs. Then, the Grid for similar tabular components was provided and made the default; however, you can still use the old style if needed. The Set As Default button is available to permanently change the default and will apply to all session in the future.

• Rotation Increment – This setting allows the angle increment selected session graphics elements are rotated (with the Shift-Left Arrow/Shift-Right Arrow or toolbar buttons) to be changed. The default is 5 degrees, but it can be changed to values from 1 to 30 degrees. The Set As Default button is available to permanently change the default and will apply to all session in the future.
  
• Scale Increment – This setting allows the scaling factor selected session graphics elements are scaled (with the Shift-Up Arrow/Shift-Down Arrow or toolbar buttons) to be changed. The default is 10% and can be changed to values from 1 to 25%. The Set As Default button is available to permanently change the default and will apply to all session in the future.
  
• Show Element Tab – This setting defaults to Yes, but it can be set to No if you want to hide the Element Tab on the Attribute Info dialog. The element tab is not useful to some users and may be confusing. The Set As Default button is available to permanently change the default and will apply to all session in the future.