LabPlot/CurveTracing: Difference between revisions
< LabPlot
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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 | |||
* 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}}