1. Use the cursor center to pick up data
when moving the mouse, the coordinate value of the cursor center as well as the status line will change accordingly.
Regard the cursor center as a point to enter the data, it is more intuitive in this way.
2. Use the keyboard to input the data.
The keyboard is used for accurate data input. You can input the data with absolute coordinate value, relative coordinate value as well as polar coordinate value.
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