Geopsy: Set header - Revision history

Marc: /* Example 9: playing with time picks and comments */

2025-03-21T22:27:28Z

Example 9: playing with time picks and comments

Marc: /* Shift T0 by 3h20 */

2025-03-21T22:27:09Z

Shift T0 by 3h20

Marc: /* Examples */

2023-09-27T09:50:56Z

Examples

Marc: /* Example 6: round StartTime to sampling period */

2023-09-27T09:49:18Z

Example 6: round StartTime to sampling period

Admin: /* Example 3: set components */

2021-01-19T22:22:16Z

Example 3: set components

Marc: /* Example 3: set components */

2020-12-03T16:51:28Z

Example 3: set components

Marc: /* Example 4: set name from the right end of shorFileName */

2020-06-24T20:10:50Z

Example 4: set name from the right end of shorFileName

Marc: /* Example 10: debug helper */

2020-06-24T20:10:22Z

Example 10: debug helper

Marc: /* Example 9: playing with time picks and comments */

2020-06-24T20:09:57Z

Example 9: playing with time picks and comments

Marc: /* Example 7: time arithmetic */

2020-06-24T20:00:59Z

Example 7: time arithmetic

@@ Line 188: / Line 188: @@
 To get help about format specification run ''gptime -h all''
-=== Example 9: playing with time picks and comments ===
+=== Playing with time picks and comments ===
    for(i=0; i<signals.length; i++) {

@@ Line 179: / Line 179: @@
     signals[i].startTime=addSeconds(signals[i].startTime, 3*3600+20*60);
+  }
 === Example 9: playing with time picks and comments ===

@@ Line 78: / Line 78: @@
 == Examples ==
-=== Example 1: modify signal names ===
+=== Modify signal names ===
 [[Geopsy: Database#Internal database structure|ShortFileName]] is the original file name without its complete path. The [[Geopsy: Database#Internal database structure|name]] of the signal is extracted from the ShortFileName.
@@ Line 88: / Line 88: @@
 '''substring(s, e)''' returns the characters starting at index '''s''' (counting from 0) and stops just before index '''e'''.
-=== Example 2: set sampling frequency to 100 Hz ===
+=== Set sampling frequency to 100 Hz ===
 Set [[Geopsy: Database#Internal database structure|sampling frequency]] to 100 Hz. Can be useful when loading signal from text files without header information. The sampling frequency is the minimum field required to display signals.
@@ Line 96: / Line 96: @@
+  }
-=== Example 3: set components ===
+=== Set components ===
 Set the [[Geopsy: Database#Internal database structure|component]] from the signal file name. [[Geopsy: Database#Internal database structure|ShortFileName]] is the original file name without its complete path. We assume that the file name contains a keyword indicating the component (e.g. ..._Z.sac, ..._N.sac or ..._E.sac).
@@ Line 122: / Line 122: @@
+  }
-=== Example 4: set name from the right end of ShortFileName ===
+=== Set name from the right end of ShortFileName ===
 Set the signal name from [[Geopsy: Database#Internal database structure|shortFileName]]. [[Geopsy: Database#Internal database structure|ShortFileName]] is the original file name without its complete path. We assume that the file name ends with a file number written with 3 digits (i.e. typical files out of CityShark II).
@@ Line 131: / Line 131: @@
+  }
-=== Example 5: set comments ===
+=== Set comments ===
 The [[Geopsy: Database#Internal database structure|comments]] contains here the name of the array.
@@ Line 161: / Line 161: @@
+  }
-=== Example 7: time arithmetic ===
+=== Time arithmetics ===
 Time specification is a string of characters with format 'YYYYMMddhhmmssz'. For example: 20200213123057.456, which stands for February 13th 2020 at 12:30:57.456.
@@ Line 174: / Line 174: @@
    dt=elapsedSeconds(signals[i].startTime, signals[i+1].startTime);
-=== Example 8: shift T0 by 3h20 ===
+=== Shift T0 by 3h20 ===
   for(i=0; i<signals.length; i++) {
@@ Line 187: / Line 187: @@
+   }
-=== Example 10: debug helper ===
+=== Debug helper ===
 Print messages to the message console.
@@ Line 195: / Line 195: @@
+   }
-=== Example 11: right or left justification ===
+=== Right or left justification ===
 Build a signal name with 0 padding.
@@ Line 203: / Line 203: @@
+   }
-=== Example 12: start a system command ===
+=== Start a system command ===
 List files and directories in your home directory
    print(system("ls /home/username"));

@@ Line 143: / Line 143: @@
 [[Image:SetHeadersExample.png|thumb|center|700px|Modified headers after applying the equations shown in examples 1 to 4]]
-=== Example 6: round StartTime to sampling period ===
+=== Set StartTime ===
   for(i=0; i<signals.length; i++) {

@@ Line 98: / Line 98: @@
 === Example 3: set components ===
-Set the [[Geopsy: Database#Internal database structure|component]] from the signal file name. [[Geopsy: Database#Internal database structure|ShortFileName]] is the original file name without its complete path. We assume that the file name contains a keyword indicating the component.
+Set the [[Geopsy: Database#Internal database structure|component]] from the signal file name. [[Geopsy: Database#Internal database structure|ShortFileName]] is the original file name without its complete path. We assume that the file name contains a keyword indicating the component (e.g. ..._Z.sac, ..._N.sac or ..._E.sac).
   for(i=0; i<signals.length; i++) {
-    switch(signals[i].shortFileName.substring(12,13)) {
+   s=signals[i].shortFileName
     case "E":
       signals[i].component="East";
@@ Line 114: / Line 115: @@
+  }
-From version 3.4.0, recognition of component names is more flexible and the above code can be simplified to
+From version 3.4.0, recognition of component names is more flexible (accepts lower case) and the above code can be simplified to
   for(i=0; i<signals.length; i++) {
-    signals[i].component=signals[i].shortFileName.substring(12,13)
+    s=signals[i].shortFileName
+  }

@@ Line 112: / Line 112: @@
       break;
+    }
+  }

@@ Line 178: / Line 178: @@
    for(i=0; i<signals.length; i++) {
-     print("Vp set to "+signals[i].timePick("Vp")+" s");
+     print("Vp set to "+signals[i].timePick("Vp"));
+   }

@@ Line 169: / Line 169: @@
    for(i=0; i<signals.length; i++) {
-     signals[i].setTimePick("Vp", 5.78)
+     signals[i].setTimePick("Vp", "20200624220722")
-     signals[i].comments="Vp set to "+signals[i].timePick("Vp")+" s";
+     signals[i].comments="Vp set to "+signals[i].timePick("Vp");
+   }

@@ Line 155: / Line 155: @@
    sig.startTime=addSeconds(sig.startTime, 2.456);
-Similar functions exist to add months and years: addMonths and addYears.
+Similar functions exist to add months and years: addMonths and addYears, respectively.
 Get the time delay between two signal starting times