You can use a DXF file as a background layer for entering objects. Compared to the DXF import, where the complete model is converted into points and lines and then imported, background layers represent a sort of transparent sheet for specific modeling.
You can use the
you can also define a new background layer in the CAD toolbar.
Categories
The background layer must be in .dxf format. Set the 'File Name' by clicking the button
select the file in the Windows dialog box.
The 'Insert point' determines the location that is placed on the "envelope" of the background layer at the Origin Point. Various options are available for selection in the list:
Origin Point
The Insert point of the background layer is placed in the model at the 'Origin Point'. Enter the coordinates of this point or define it using the button on the left
Graphically in the work window or by using the button on the right
in the preview area.
Options
If you want to use a 'Non-uniform scale' for scaling the layer in the spatial directions, activate the check box. Thus, the corresponding input fields in the 'Scale' dialog section become accessible.
If you want to import only from some layers, first activate the check box 'Import from Selected Layers'. Then, select the corresponding layers in the 'Layer' tab.
If the 'Length units of DXF template' are not to be automatically adopted from the DXF file, you can select the appropriate unit from the list.
Scale
In this dialog section, you can scale the size of the background layer; for example, to compensate for inconsistencies in units. The normal case is a 'Uniform scale' Δ with regular scaling in all directions. For a non-uniform scale, activate the corresponding check box in the 'Options' dialog section.
Use the
you can switch between relative and absolute inputs.
Using a background layer
If the background layer is set as Active, it is highlighted in gray. Now, you can place points, lines, elements, and parts at the intersection points of layer lines.