LabPlot/CurveTracing: Difference between revisions

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Datapicker is a tool that allows to easily extract data from image files. The process of extraction consists mainly out of the following steps:
'''Data Extractor''' is a tool that allows to easily extract data from image files. The process of extraction consists mainly out of the following steps:


* Import an image containing plots and curves where you want to read the data points from
* Import an image containing plots and curves where you want to read the data points from


* Select the plot type (cartesian, polar, etc.)
* Select the plot type (Cartesian, polar, etc.)


* Select tree reference points and provide values for them. With the help of these points, the logical coordinate system is determined
* Select tree reference points and provide values for them. With the help of these points, the logical coordinate system is determined


* Create a new datapicker curve and set the type of error bars.
* Create a new Data Extractor curve and set the type of error bars.


* Switch to the mouse mode "Set Curve Points" and start selecting points on the imported image - the coordinates for the selected points are determined and added to the spreadsheet "Data".
* Switch to the mouse mode "Set Curve Points" and start selecting points on the imported image - the coordinates for the selected points are determined and added to the spreadsheet "Data".
Note: The Data Extractor is a renamed version of the Datapicker.


{{#ev:youtube|D_Pz5aA-4Xg|500|center}}
{{#ev:youtube|D_Pz5aA-4Xg|500|center}}

Revision as of 08:26, 23 February 2022

Data Extractor is a tool that allows to easily extract data from image files. The process of extraction consists mainly out of the following steps:

  • Import an image containing plots and curves where you want to read the data points from
  • Select the plot type (Cartesian, polar, etc.)
  • Select tree reference points and provide values for them. With the help of these points, the logical coordinate system is determined
  • Create a new Data Extractor curve and set the type of error bars.
  • Switch to the mouse mode "Set Curve Points" and start selecting points on the imported image - the coordinates for the selected points are determined and added to the spreadsheet "Data".

Note: The Data Extractor is a renamed version of the Datapicker.