CAD What is an xref? How to use it?? 30

The CAD xref is:

In addition, the use of xrefs can also effectively reduce the size of the drawing, because when the user opens a file containing xrefs, the system will only search for the xref file according to the recorded path, and will not store the xref as an internal resource of the drawing file.

The specific usage is to select "Insert", then select the type of reference you need, and then select the inserted file, and you can use it.

CAD xrefs are carried out:

The first method: right-click on the CAD XRef drawing, you can choose to do it in a new window that pops up, and you can also do it in place in the main image.

The second method: select the CAD menu, click "Insert", then select "External References", select "References", and right-click the required CAD external reference in the pop-up reference manager.

Generally in the building, different majors are drawn in different drawings, but some majors will use the drawings of other specialties, so they use external references, for example, if you do HVAC, the specific position of the pipeline needs to be used as a reference, and the external reference can be easily dismantled and loaded, which is convenient for the management of drawings and drawings. This major is placed in one folder, and other majors are placed in the corresponding folder, and if necessary, use the reference. For example, HVAC equipment, water pipes, and air ducts can be done in different diagrams, and water pipes and air ducts will refer to the equipment diagrams.

Remember that the command is xref, press f1 to open the help, and it will be soon to teach yourself.

The CAD drawing opening prompt does not have an external reference, which is caused by a setting error, and the solution is as follows:

1.Click "XRef Management" in the VIP button to view the XRef information.

2.A dialog box pops up and you can see it. Open the drawing, there is indeed a reference base map, the name is: Huludao base map. His status is: File not found. All we need to do is find this basemap and load it.

3.Left-click on this message, click "Change File Path" in the upper right corner, and a dialog box will pop up, let's select this basemap. After searching, I found that there is this drawing under the C disk, select the drawing, and click to open.

4.The basemap is automatically loaded. You can see that the red light turns green, the file has been loaded, and the status in the lower left corner has also changed to "Poor Loading Success", and you can see that the drawing is displayed completely. This solves the problem that the ** of CAD xrefs cannot be displayed.

<> how to solve the problem that the CAD external reference cannot be displayed, taking CAD2007 as an example, the operation steps of other versions are basically the same.

Click on "Xref Management" in VIP to view the information.

Open the drawing, there is indeed a reference base map, all you need to do is to find this base map.

Left-click "Change File Path" in the upper right corner to select the basemap.

on the C drive. There is this drawing below, select the drawing to open it.

When you see the red light turn green, it means that the file has been loaded, and the status has become "Loaded Successful", the drawing is completely displayed, the CAD external reference can be displayed, and you can be proficient in many operations.

It could be a layer issue. Change the text and lines that the xref needs to display to layer 0 and save it. Reload it and you're good to go.

The display is incomplete because the drawings are not in the same folder, and they need to be placed in the same folder, and the specific steps for CAD to load XRef drawings are as follows:

The materials that need to be prepared are: computer, Tianzheng 2008.

Take win7 system and Tianzheng 2008 version of wax oak as an example:

1. First open Tianzheng 2008 and click to open the "XRef" in the insert.

2. Then click the first icon in the upper left corner of the pop-up window, and select to open the XRef sheet you want to load.

3. Then click on the pop-up window to select "Attachment Type".

4. Then click to open the option below the Road King type and select "Relative Path".

Using the use of CAD, sometimes it is necessary to draw on the basis of other people's drawings, so we can use reference to draw, which can be well realized. I'm going to talk about this method.

02 The "XRef" panel will pop up, as shown in the figure, we click the "Attach" button in the upper left corner, pop up the menu, and select "Attach DWG" (according to the graphic format you refer to, you can choose your own, and the DWG is to refer to the drawing on someone else's CAD drawing).

03 Then, we select the drawing we want to reference, select it, and click "Open".

It is conducive to the automatic connection of drawings in the future), click "OK", and the external reference will be set up.

An xref attaches an external drawing to the current drawing without changing the contents of the current drawing file.

Attaches the drawing as an external reference. If you attach a drawing that contains attached xrefs, the attached xrefs appear in the current drawing. Attached xrefs can be nested just like blocks.

If another user is currently using this external reference, the attached drawing will be determined by the most recently saved drawing.

1. Click the "XRef" button

dwg reference.

2. In the Select Reference File dialog box, select the file you want to attach and click Open.

3. In the XRef dialog box, under Reference Type, select Extra.

Specify the insertion point, scale, and rotation angle. Select Specify on screen to use the point-pointing device. "Extra" contains all nested xrefs.

Set up. 4. Click OK.

CAD Tips & Tricks - XRefs & Blocks.

During the drawing process, you can attach a drawing as an xref to the current drawing, which is an important way to share data.

1.Xrefs and Blocks

Xrefs are inserted into a drawing like blocks of existing drawing files, but xrefs are different from block insertions. When you insert a block, the inserted graphic object exists as a separate part of the current drawing, not associated with the original drawing file.

In the process of using xrefs, the inserted drawing file information is not directly added to the current drawing file, but only records the relationship of references, and the operation of the current drawing does not change the content of the externally referenced drawing file. The system automatically re-inserts each externally referenced drawing file into memory only when the user opens the externally referenced drawing file, and the former file can reflect the latest changes in the referenced file at any time.

For the layer processing of the referenced drawing and the current drawing, you can refer to the following example. Suppose an AutoCAD drawing file has an A layer and is referenced as an external reference file, then in the main drawing file, the A layer is named MyDraw|layer a, i.e., the system automatically adds the new name to the list of dependencies in the main graph. This ability to automatically update the names of external reference dependencies has two benefits.

Users can see at a glance which external reference file each named target comes from.

The main drawing file has dependencies with the same name as the external reference file and is not confused.

Using xrefs for graphic design, users are able to achieve the following features:

Combine some component drawings that need to be constantly modified during the project development process into ** drawings.

Place other users' drawings on your drawings and merge your and other users' work to keep up with changes made by other users.

Make sure that the latest version of the referenced drawing is displayed. AutoCAD automatically overrides each XRef when you open or plot a drawing, so it reflects the latest state of the referenced drawing file.

Creates an XRef clipping boundary that displays only the specified portion of the XRef file in the master drawing.

2.Attach an external reference

The purpose of attaching an xref is to help you supplement the current drawing with other drawings, if you need to attach a drawing to the current drawing as an external reference, you can use the following procedure:

1) Click the Attach XRef button in the References toolbar, and the Select Reference File dialog box will pop up.

2) Select the drawing file you want to attach as an XRef, click OK, and the XRef dialog box will pop up.

4) Click the OK button and specify the insertion point of the xref in the drawing area, and the attachment of the xref is completed.