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Anonymous users2024-02-111. To identify whether a CAD file has been modified, you must have a reference file for comparison.
2. If there is no reference document, it is not possible to judge just by looking at the saving (or modifying) time. Anyone who has done CAD knows that after opening a CAD file, you don't make any changes, just zoom or pan and save, then the saving (or modifying) time will also change, you can't say that this situation is also a modification to the file, right?
1. Open both files and copy all the elements of one file to the other, so that there are two very similar (or identical) diagrams in one file (remember which one is the reference diagram, which is the diagram you want to judge).
2. Change all the elements of one of the diagrams (here assumed as the reference diagram) to red, and all the elements of the other diagram (here assumed as the diagram to be judged) are changed to white. (Personally, I think that only these two colors can be contrasted in the following steps, of course, you can also choose two colors according to your preferences.) In the process of changing the color, you may encounter the problem that the color of some elements cannot be changed, and you can decompose it, that is, blow it up, and some people who really can't blow it up have to take the trouble to look at it carefully).
3. Select all the red diagrams and execute the "Put to Top" command, and then move them to the white diagram (point-to-point movement). Since the red image is sent to the top layer, the two images will become red when they overlap, and carefully observe whether there are any white primitives leaking.
4. Repeat step 3, this time "on top" the white image, and carefully observe if there are any red elements leaking.
5. If you can see other colors in the step, it means that the two pictures are not the same, if you don't see other colors, that is. Hey!
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Anonymous users2024-02-10Step 1: Run the CAD, open the software interface, click the "File" button, and then click the "Open" option.
Step 2: After entering the opening interface, select the CAD file you want to open, and then click the "Open" button below to open the CAD file.
Step 3: Once the file is opened, click on the "File Info" option in "File".
Step 4: In the "File Information" interface, click "File" to view the CAD file information.
Step 5: Click on "CAD Drawing Settings" to view the CAD file version.
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Yes.
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