为了方便，元素还有一个可选的from属性，该属性为属性值设置起始点。

For convenience, the element also has an optional from attribute, which sets the starting point for the attribute value.

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通过这种方式就可以设置橙色和蓝色的起始点。

This is how you set where to start the orange and blue.

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对于每条轴线，使用moveToAPI来设置开始绘制直线的起始点。

For each of these, use the moveTo API to set the point from which you will begin to draw a line.

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对于每条轴线，使用moveToAPI来设置开始绘制直线的起始点。

For each of these, use the moveTo API to set the point from which you will begin to draw a line.

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