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:
Datapicker 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 tree reference points and provide values for them. With the help of these points the logical coordinate system is determined
* Select the plot type (cartesian, polar, etc.)
* Create a new datapicker curve and set the type of the error bars.
 
* 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.
 
* 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".


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

Revision as of 11:20, 1 May 2021

Datapicker 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 datapicker 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".

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