gt.cfg: The gt.cfg file is not really used. There are a few things that can be set there, but they use of this file is very limited at this point. You can safely ignore the warning about the gt.cfg file not being found. The format for the gt.cfg file is: ITEM_NAME ITEM_VALUE Where ITEM_NAME is the name of some parameter to set and the ITEM_VALUE is the value of this parameter. They need to be on separate lines, one after another. Here is what can be set in the gt.cfg file: X_AXIS_LABEL a label for the x axis Y_AXIS_LABEL a label for the y axis XMIN minimum x value for manual scale XMAX maximum x value for manual scale YMIN minimum y value for manual scale YMAX minimum y value for manual scale The XMIN/MAX YMIN/MAX is really a hack -- it was added as a quick way to add manual scaling without having to add a text input widget to gt. The same is true for the labels. These will go away when I get to adding text input. The color for Gt can be set in the app-defaults file for GT (this is in the app-defaults directory). At the top of this file there are the lines: Gt*drawing_area.foreground: black Gt*drawing_area.background: white You can set these to what ever colors you want (that x-windows will recognize). Quickly, here are the menu items in GT: File Load Compact Calls up the File Load dialog box and expects a file in the compact format (output of QC and TEQC) Bernese Binary Calls up the File Load dialog box and expects a file in bernese binary format X-Y Ascii Calls up the File Load dialog box and expects a file in X-Y Ascii format. This format has one value pair per line separated by white space. For example: 1 2.3 2 2.2 3 2.1 4 2.9 Time Spans This is an unsupported option that will probably go away. This was a hack to display some time windows in gt. Remove The skull/cross bones cursor appears and you can click on filesets to remove them. I dialog box appears with a DONE button that you can click when you are finished removing filesets. Write picks Writes to disk a list of the picks/marks that you have made. This is for editing bernese binary data files and the format of this file is a bernese format. Apply picks Writes the pick output file and also does a system call to ru bernese programs to apply the picks that were made. This is not implemented 100% yet. Exit Edit Zoom Lets you zoom. If you want to zoom just one fileset, then start and stop the zoom in just that fileset. If you want to zoom on all or more filesets, start in the top fileset and end on the bottom fileset. Un-Zoom Clears the zoom settings. Slip (Fix) Calls up a dialog box that lets you enter L1/L2 slips for that epoch. This only has meaning when looking at double difference residuals. Slip (Mark) Marks the epoch as a slip but does not attempt to fix the slip. A flag is displayed on the first epoch for this SV on or after this point for every trace that contains this SV. Amb Marks the epoch to have an ambiguity. A flag is displayed on the first epoch for this SV on or after this point for every trace that contains this SV. Mark Marks out data points. The points selected will not be displayed. Scale Sets Y-scale method. Each fileset can be scaled by all the points contained in the fileset, or just by the points currently in displayed in the fileset. If all traces are displayed, then current and all will give the same results. If the y-scale method is current, then as each individual trace is displayed, the y-scale will change. Above each fileset to the left there are some buttons, the last of which is has either an A or C. This shows the mode for the fileset, either All or Current. Clicking on this button will toggle the mode. Initially each fileset is scaled on its own. The second button in the upper left of the fileset tells which Y scale group the fileset is in. Normally each fileset has its own scale group. If the filesets are all scaled together, then the scale group for each fileset will be set to the same (Y1) and all filesets will have the same Y min and max value. If all filesets are scaled together, clicking on this button will remove it from the scale group. Y Together Sets the scale group for each fileset to the same (Y1). Y Separate Sets the scale group for each fileset to a unique values. Config File Reads the gt.cfg file for the X and Y scale limits. scale Current Sets all filesets to scale to currently displayed points. scale All Sets all filesets to scale to all points contained in the fileset. Clear These items clear the list of picks that have been made. Clear Fixed Slips Clears any fixed cycle slips. Clear Marked Slips Clears any points marked as a slip. Clear RES Ambs Clears all ambs that were flagged in the input residual file. Clear User Ambs Clears all ambs picked by hand. Clear All Ambs Clears all amb flags. Clear Marks Clears any marks made. Marked points will be re-displayed. Clear All Clears all picks made. Settings Plot Pops up a dialog box that lets you control some of the plot settings. In the dialog box, [ ] items a toggles and < > items are 'one of many' selections. [ ] Draw trace symbols Draw or do not draw a square at each epoch. If displaying the gt window on a remote system, turning off trace systems can greatly speed up plotting. [ ] Load with all traces on. When a new fileset is loaded, all traces will be displayed if this item is on, otherwise only the first trace is displayed. [ ] Display AVE and RMS controls weather or not the AVE and RMS values are displayed in the cursor tracking window. Time Axis Display Method: < > Epocs display x-axis in units of epochs. < > Time HH:MM:SS display y-axis in units of time. Only works with compact files if a Julian time of first epoch is provided in the compact file.