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(4) Click the
icon to set the color of the brush and the saturation and
transparency of the color.
(5) Click on the
icon to clear all the contents of the annotation.
(6) Click the
icon to set the threshold of the annotation.
2. Toolbar operation
instructions:
(2) Click on the
icon to view the layer record.
(3) Click the
icon to save the file, and save the currently written content in
the form of a picture. The default time is named and saved.
(4)Click the
icon to exit the annotation mode.
2.3 Multi-screen Interactive
The multi-screen interactive application display interface is shown in the figure,
and the multi-screen interaction supports mobile phone projection screen.
