Open the edit menu and click the preset (F) option to enter the preset dialog box. Preset contains four parts: company, color, text and tools, which are used to set the page as a whole.
1. unit option
Open the preset dialog box, and the system defaults to the setting of "Company" option, as shown in the above figure. The main settings are as follows.
Click the drop-down button on the right side of the angle to pop up three options of angle unit: radian, degree and direction degree. The range of "radian" is-π-π, the range of "degree" is 0-180 degrees, and the range of "direction" is-180 degrees.
Click the drop-down button to the right of the distance to display three choices of length units, namely Pixel, Centimeter and Inch. Both angle and length can be set with precision, and there are six choices: unit (accurate to one place), one tenth, one hundredth, one thousandth, one thousandth and one thousandth.
Apply to includes the current artboard and all new artboards check boxes.
2. Color options
Click the color option to set the color.
You can set the colors of points, lines and other objects. Click the color box on the right side of the object, and a Windows-like color picking dialog box will pop up to set the color. The main settings are as follows.
"Use random colors in new objects" multiple options. If selected, a color will be automatically filled randomly when drawing new objects.
"Fade in and out effect time" multiple options. Refers to the speed at which the track color of the display object automatically fades in and out.
3. Text options
Click the Text option to set the text.
For a detailed introduction of the text options, please refer to the tutorial: Understanding the text options in the geometry sketchpad preset, and no further description will be given here.
4. Tool options
Click the Tools option to set up tools.
If you selected double-click to deselect in the Arrow tool, you must double-click an empty area of the document to deselect the selected object.
If you choose to show boundaries in the Polygon tool, there will be boundaries when drawing polygons, which is different from the line segments connected between vertices of polygons. You can also set the transparency inside the polygon, which is often called the Alpha value.
The thickness and line type of the brush can be set in the marking tool.
Set the display content in the information tool, which can be "parent object" or "child object" or both. The above is the introduction of preset options. The tutorial index comes from: /xinshourumen/ Wen Jian-yuzhi.html. I hope it will help you.