特殊时钟模拟
2018-08-25 07:17
本范例展示了一个特殊时钟的几何与运动模拟。通过圆、点、线段、向量和旋转等几何构造，结合序列和缩放等变换，动态演示时钟指针的运动规律及表盘上的几何关系。涉及三角函数与圆的参数方程，适合用于理解周期性运动、角度与弧度的转换以及几何变换在动画中的应用。
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<element type="boolean" label="b">
<value val="false"/>
<show object="false" label="true"/>
<objColor r="0" g="0" b="0" alpha="0.0"/>
<layer val="0"/>
<labelOffset x="769" y="95"/>
<labelMode val="4"/>
<checkbox fixed="true"/>
<caption val="start"/>
</element>
<element type="button" label="button1">
<show object="true" label="true"/>
<objColor r="0" g="0" b="0" alpha="0.0"/>
<layer val="5"/>
<labelOffset x="643" y="49"/>
<labelMode val="0"/>
<fixed val="true"/>
<auxiliary val="true"/>
<ggbscript val="b=!b"/>
<font serif="false" sizeM="2.0" size="28" style="0"/>
<caption val="start"/>
</element>
</construction>
</geogebra>