推荐回答(4个)
1、打开需要编辑的CAD图纸文件,并在编辑区找到需要进行缩放的图形对象。
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2、选择需要缩放的图形对象,在“编辑器”菜单选项中,点击“缩放”工具右侧的下拉按钮,选择“绝对比例”或“相对比例”。
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3、接着在图中点击选择一个缩放点,或输入缩放点的X、Y坐标位置。
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4、绝对比例缩放:只需在长度一栏输入缩放数值2,然后按Enter键,图形(边长、直径)就会放大为原来的2倍。
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对拾取到的实体进行按比例放大和缩小。
【命令名】 scale
(1) 单击并选择“修改”下拉菜单中的“比例缩放”命令或在“编辑”工具栏单击“比例缩放”按钮。
(2) 按操作提示用鼠标拾取实体,拾取结束后用鼠标右键加以确认。在状态栏可弹出立即菜单:
尺寸值不变:用鼠标单击该项,则该项内容变为“尺寸值变化”。
如果拾取的元素中包含尺寸元素,则该项可以控制尺寸的变化。当选择“尺寸值不变”时,所选择尺寸元素不会随着比例变化而变化。反之当选择“尺寸值变化”时尺寸值会根据相应的比例进行放大或缩小。
比例不变:用鼠标单击该项,则该项内容变为“比例变化”。当选择“比例变化”时尺寸会根据比例系数发生变化。
(3) 然后用鼠标指定一个比例变换的基点,则系统又提示“比例系数”。
(4) 移动鼠标时,系统自动根据基点和当前光标点的位置来计算比例系数,且动态在屏幕上显示变换的结果。当输入完毕或认为光标位置确定后,按下鼠标左键,一个变换后的图形立即显示在屏幕上。用户也可通过键盘直接输入放缩的比例系数。
(1)、(2)步:也可先选择缩放对象,再点右键,出现菜单,选择缩放。
尺寸值不变及比例不变:默认状态。缩放后,图形变而原标注的尺寸值不变。
点后此两项后,为尺寸值变化及比例变化,原标注的尺寸值随缩放倍数而相应改变。
(3)比例变换的基点:以基点为中心进行缩放。
比例系数:缩放的倍数,缩小时为小数,大于1则放大,如你要放大的1.3。
(4)不输入比例系数时,也可移动鼠标到适当位置,点左键确认,图形就会变换至确认的位置。
操作时,选择及输入的地方均在界面左下方的窗口。
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