• No way to print

• No easy way to print

To Print a logview Plot via a file:

• Make the plot and be viewing it on the 'Graph' page.
• Open 'File > Export'.
• 'Name:' the plot with a .png extension.
• Make no directory selection to have the plot file saved in your home directory, or:
• 'Browse' for the 'folder' you wish to save the plot file in and double click the desired folder name.
• 'Save' the plot file.
• Abandon logview for the moment.
• Go to the directory/folder where you saved the plot file and open it with software that can open .png files.
• Print the plot.

• No way to print

-- MarkClark - 12 Feb 2007

-- MarkClark - 06 Nov 2007

• To access this program, type logview from the command line of any GB Unix machine.

• To access this program, type logview from the command line of any GB Unix machine, or
• Select LogView from the list of available application components in Astrid.

This program is being released as an ALPHA product on May 19, 2004. This means that bugs are anticipated, but we would like to give users a chance to provide early feedback.

• Basic math transformations can be specified on the axes, e.g., 1.8*Y1+32 for Fahrenheit or log(Y1)

• Basic math transformations can be specified on the axes, e.g., 1.8*Y1+32 for Fahrenheit or numarray.log10(Y1)

• Samples are sorted and duplicates removed prior to plotting.
• Data may be plotted against two Y-axes.

• The program will crash if you attempt to load too much data. We have discovered that "too much" is somewhere between 1 and 2 weeks of weather data, or any data that requires more than approximately 40 seconds to load (you can see how many seconds it will take to load by looking in the bottom left hand corner of the screen). The crash is very graceful; your Logview window will simply disappear if you attempt to load too much data. This problem is being investigated and will be fixed as soon as it's scheduled.

• A second ordinate (Y2) has been added in the test environment, but is not yet functional so it is not part of the alpha release.
• The plotter is relatively slow. Speed improvements that were applied to GFM are being investigated as possible solutions for Logview.

Intended Future Work Items:

• Be able to export data in tabular form.

• Units are not displayed

-- MarkClark - 12 Feb 2007

-- MarkClark - 18 May 2004

• The program will crash if you attempt to load too much data. We have discovered that "too much" is somewhere between 1 and 2 weeks of weather data, or any data that requires more than approximately 40 seconds to load (you can see how many seconds it will take to load by looking in the bottom left hand corner of the screen). The crash is very graceful; your Logview window will simply disappear if you attempt to load too much data. This problem is being investigated and a fix is planned ASAP.

• The program will crash if you attempt to load too much data. We have discovered that "too much" is somewhere between 1 and 2 weeks of weather data, or any data that requires more than approximately 40 seconds to load (you can see how many seconds it will take to load by looking in the bottom left hand corner of the screen). The crash is very graceful; your Logview window will simply disappear if you attempt to load too much data. This problem is being investigated and will be fixed as soon as it's scheduled.

• User can select samplers by directory location or by aliases as specified in .sparrow file. The form for specifying a sampler alias in the file is alias_name : sampler_name. The default aliases are:

• Handles archived log files (.gz)
• Can overlay additional plot on top of previous plots
• Basic math transformations can be specified on the axes, e.g., 1.8*Y1+32 for Fahrenheit or log(Y1)
• User can select samplers by directory location or by aliases as specified in .sparrow file. The form for specifying a sampler alias in the file is alias_name : sampler_name. The default aliases, which will be available if you DO NOT have a [Logs] section in your personal. sparrow file, are:

• Handles archived log files (.gz)
• Can overlay additional plot on top of previous plots
• Basic math transformations can be specified on the axes, e.g., 1.8*Y1+32 for Fahrenheit or log(Y1)

• If you prefer to limit the number of log files available to your personal instance of LogView, simply add a [Logs] section and place a subset of the descriptors outlined above below it, one per line.

• User can select time range by most recent OR by relative time OR by start and end times
• User can select samplers by directory or by aliases as specified in .sparrow file - what ARE aliases as specified in .sparrow file? include an example, regular users will not understand this

• User can select time range by most recent OR by relative time OR by start and end times.
• User can select samplers by directory location or by aliases as specified in .sparrow file. The form for specifying a sampler alias in the file is alias_name : sampler_name. The default aliases are:
  • ccuData: Antenna-AntennaManager-ccuData
  • el50HzServo: ServoMonitor-ServoMonitor-elServo50Hz
  • azElCommands: Antenna-AntennaManager-azElCommands
  • accelerometer: ServoMonitor-ServoMonitor-Spare50Hz
  • Subreflector Actuators: Antenna-AntennaManager-subreflectorAct
  • Subreflector XYZ: Antenna-AntennaManager-subreflectorXYZ
  • Weather1 (At ICB): Weather-Weather1-weather1
  • Weather2 (At GBT): Weather-Weather2-weather2
  • Weather3 (Feedarm): Weather-Weather3-weather3
  • GBT Az/El: Antenna-AntennaManager-ccuData
  • RcvrPF_1: RcvrPF_1-RcvrPF_1-cryogenics
  • RcvrPF_2: RcvrPF_2-RcvrPF_2-cryogenics
  • Rcvr1_2: Rcvr1_2-Rcvr1_2-gregorian
  • Rcvr2_3: Rcvr2_3-Rcvr2_3-gregorian
  • Rcvr4_6: Rcvr4_6-Rcvr4_6-gregorian
  • Rcvr8_10: Rcvr8_10-Rcvr8_10-gregorian
  • Rcvr12_18: Rcvr12_18-Rcvr12_18-gregorian
  • Rcvr18_26: Rcvr18_26-Rcvr18_26-gregorian
  • Rcvr40_52: Rcvr40_52-Rcvr40_52-gregorian
  • RxRm Temps: MotorRack-MotorRack-temperature
  • ActrRm Temps: ActiveSurface-ActiveSurfaceServo-temperature
  • OnePpsStatus: SiteTime-OnePps-OnePpsStatus
  • Rtpm GBT LO: SiteTime-Rtpm140-Rtpm
  • Tipper (Integrated): Tipper-Tipper-integratedData
  • Tipper (Slow Mon): Tipper-Tipper-slowMonitor

• Can overlay one plot on top of previous plots

• Can overlay additional plot on top of previous plots

• Resizing many times in a row can corrupt the appearance of the data on screen. If this happens, press "Clear" on the main screen and plot your data again.

-- MarkClark - 17 May 2004

-- MarkClark - 18 May 2004

LogView is the Sparrow replacement for the AIPS++ gbtlogview program which works with compressed and uncompressed (archived) data. It is still in development, the following describes release 4.3. This is an alpha release, check shortcomings below.

GBT Logview

To give it a try enter:

• logview

Features:

• select time range by most recent OR by relative time OR by start and end times
• select samplers by directory or by aliases as specified in .sparrow file
• handles archived logs
• can overlay one plot on top of previous plots
• basic math transformations can be specified on the axes, e.g., 1.8*Y1+32 for Farenheit or log(Y1)

Not so good features:

• too much data core dumps the program, e.g., two weeks of temperature data
• no way to export data in tabular form
• extreme resizing can screw up window
• secoond ordinate (Y2) not working
• slow
• may need protection from internal math errors

The logview program extracts and displays data from the GBT data log files. Note that this version replaces the logview program that was written in glish. The glish-based program is still available as logview-glish.

This program is being released as an ALPHA product on May 19, 2004. This means that bugs are anticipated, but we would like to give users a chance to provide early feedback.

Usage:

• To access this program, type logview from the command line of any GB Unix machine.

Features:

• User can select time range by most recent OR by relative time OR by start and end times
• User can select samplers by directory or by aliases as specified in .sparrow file - what ARE aliases as specified in .sparrow file? include an example, regular users will not understand this
• Handles archived log files (.gz)
• Can overlay one plot on top of previous plots
• Basic math transformations can be specified on the axes, e.g., 1.8*Y1+32 for Fahrenheit or log(Y1)

Known Issues:

• The program will crash if you attempt to load too much data. We have discovered that "too much" is somewhere between 1 and 2 weeks of weather data, or any data that requires more than approximately 40 seconds to load (you can see how many seconds it will take to load by looking in the bottom left hand corner of the screen). The crash is very graceful; your Logview window will simply disappear if you attempt to load too much data. This problem is being investigated and a fix is planned ASAP.
• At the present time, there is no way to export data in tabular form.
• Resizing many times in a row can corrupt the appearance of the data on screen. If this happens, press "Clear" on the main screen and plot your data again.
• A second ordinate (Y2) has been added in the test environment, but is not yet functional so it is not part of the alpha release.
• The plotter is relatively slow. Speed improvements that were applied to GFM are being investigated as possible solutions for Logview.

Intended Future Work Items:

• Be able to export data in tabular form.
• The program may need protection from internal math errors caused by unexpected responses from the libraries Logview uses to plot and examine data.

%META:TOPICMOVED{by="NicoleRadziwill" date="1084890792" from="Data.LogviewReleaseNotes4_3" to="Data.LogView"}%

%META:TOPICINFO{author="MarkClark" date="1084803420" format="1.0" version="1.1"}% %META:TOPICPARENT{name="Software.SoftwareReportCentral_ReleaseNotes"}% LogView is the Sparrow replacement for the AIPS++ gbtlogview program which works with compressed and uncompressed (archived) data. It is still in development, the following describes release 4.3. This is an alpha release, check shortcomings below.

To give it a try enter:

• logview

Features:

• select time range by most recent OR by relative time OR by start and end times
• select samplers by directory or by aliases as specified in .sparrow file
• handles archived logs
• can overlay one plot on top of previous plots
• basic math transformations can be specified on the axes, e.g., 1.8*Y1+32 for Farenheit or log(Y1)

Not so good features:

• too much data core dumps the program, e.g., two weeks of temperature data
• no way to export data in tabular form
• extreme resizing can screw up window
• secoond ordinate (Y2) not working
• slow
• may need protection from internal math errors

-- MarkClark - 17 May 2004