How to Display the Trace of an Object
How to turn on the trace of an object
Objects can leave a trace in the
Graphics View when they are moved. There are two ways of turning on the trace of an object:
Graphics View.
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- Select the object whose trace you would like to create. Use the
Style Bar button in order to open the
Properties Dialog. Check
Show Trace on tab Basic. OR
- Right-click (MacOS: Ctrl-click, tablet: long tap) on an object and check
Trace On in the appearing Context Menu.
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Instructions
1. | ![]() | Select the Move tool and then click on point A. |
2. | ![]() | Open the Style Bar by clicking on the ![]() ![]() ![]() |
3. | ![]() | Select the Move tool and drag point A to show its trace. |
4. | ![]() | Also activate the trace feature for point A'. |
5. | ![]() | To clear the trace, click on the Menu button in the upper right corner of the GeoGebra window. Then select Refresh Views from the ![]() |
Try it yourself...
Learn more about the Trace feature
The
Trace On feature has some special characteristics:
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- A trace is a temporary phenomenon. Whenever the graphics are refreshed, the trace disappears (e.g. on zoom). If you want to display a permanent trace of a point you can use the Locus tool or command.
- The trace cannot be saved and is not shown in the
Algebra View.
- You can turn off the trace of an object by un-checking
Trace On either in the
Object Properties Dialog or the Context Menu.
- The menu item Refresh Views in the
View menu clears all trace. Hint: If you are using GeoGebra Desktop or the Web or Tablet App, you can also use the key combination Ctrl – F in order to refresh the Views.