导入文件

说明

本文介绍了使用设计底图（基本图形）的功能，既通过使用导入底图的工具，选择一要导入的外部文件，插入到项目中，然后选择适当的比例和将其定位的方法。
可导入的底图文件格式：

选择 导入底图
选择要导入的底图文件
指出底图在底图编辑范围中的位置
选择并确认正确的底图尺寸。
在参数表中可修改底图的尺寸或使用确定比例 工具修改底图的尺寸，它需要绘制一条辅助线段并给出它的实际长度来确定图纸的尺寸。此外，如果导入的是DWF/DXF文件，就可在参数表中选择CAD单位与米的倍数或分倍数之间的转换因子来确定底图的尺寸。
Verify the underlay save (storage) location option.
The underlay may be stored in the project file *.ISPROJ, in which case the size of that file is increased (identical underlay files placed on multiple worksheets do not inflate the project file in proportion to the number of times the underlay is used), or it may remain in a separate (original) file to which the project will refer. The latter solution requires, when the project file is handed over to another person, that the underlay files are also turned over and the access paths to the files in the computer are specified.
Verify proper mutual alignment of underlays on the individual storeys. To obtain proper structure of a multi-storey building it is advisable to use a 参考点, wherein one reference point is placed in each worksheet at a location having identical real coordinates X,Y.

It is particularly advantageous to import an underlay in the DWG format, which enables, when editing the structure, attracting the cursor to components located in the indicated layers of the underlay (snap function).
If necessary, it is possible to confine (reduce) the visible area for underlays, e.g. underlays that include plans of several storeys on one sheet. The operation of confining the visible area may be cancelled at any stage of project creation.
If an underlay is divided into several parts (which may, for instance, result from scanning operations), these individual parts can be imported separately and subsequently combined using the Combine base files functionality.