You may need to scroll down the image to find a major tick mark (in this case, 10100 feet). X10100(X meaning ft along the downward depth) Y150.0 (Y meaning the value of GR along the horizontal axis). Calibration is done by setting four reference points on the original graph axis, two for the x. Click on one of the axes to add the third axis point, enter its graph coordinates. ENGAUGE_USERMANUAL If set, this specifies the directory containing the user manual. the locator function to calibrate and extract the data. Debugging ¶ -pixels Show cursor location in pixel coordinates rather than graphĬoordinates -ctor Trace constructor calls -dtor Trace destructor calls -curvecmb Trace curve combobox operations -measurecmb Trace measure combobox operations -refresh Trace screen refreshes -scanning Trace image scanning Environment variables ¶ ENGAUGE_BROWSER To start up the date/time converter from within Engauge Digitizer, thisĮnvironment variable must be set to the shell command that runs a There are problems with one or more settings. Way to restore all settings to a useful configuration, especially when Settings ¶ -reset Reset all settings to the factory defaults. Documents may alsoīe exported manually using the menu. Shutdown ¶ -export FILE Automatically export the active document at shutdown. Until either the Segments dialog is used, or the Segment Fill button is The axis points may also be digitized manually using the DigitizeĪxis Points mode -lazysegments Postpone scanning for segments that is normally performed during startup, Drag the cursors to known positions at the ends of the plot axes, then. ![]() When using Perl or other scripts to digitize many images with known axes Set Scale: Click Show to add two pairs of horizontal and vertical cursors to the plot. The digitized points may require adjustment. For speed, no attempt to rotate the image if it is sideways, so the digitized data is in the form of binary numbers, which facilitates processing by digital computers and other operations, but digitizing simply means. The X axis is assumed to be near theīottom of the image, and the Y axis is assumed to be on the left side of Thenĭigitize axis points assuming the X axis ranges from XMIN to XMAX, and the axes XMIN XMAX YMIN YMAX Scan the imported file at startup, and locate the X and Y axes. Installed in /usr/share/doc/engauge-digitizer/usermanual and should need Window and exit -manual DIRECTORY Look for the HTML user guide in the specified directory. Document files may also be opened manually using the menu -help Display a list of command line options similar to this manpage in an X Image files mayĪlso be imported manually using the menu -open FILE Automatically open the specified Engauge Digitizer document file at Startup ¶ -import FILE Automatically import the specified image file at startup. ![]() ![]() This manual page documents briefly the engauge command from the a matter of seconds, rather than minutes, which helps to make my day that much smoother. Engauge-digitizer - interactively convert a bitmap graph or map into numbers Pick two points on the x and y axes to calibrate the digitizer.
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