CAD Problems Absolute High Score Ask CAD masters to solve problems

Recently, I made a lot of the legends of the roof garden in other CAD drawings that were directly cope, so there were a lot of layers that I didn't know, and I couldn't delete them. But the picture is still my original.,So I really don't know if your picture is original or semi-original.,I suggest you ask that person first.。

Cass is a piece of software, ask him, he can't see it, but it's impossible with too many layers.

Ordinary people don't use too many layers for mapping, and it's easy to get confused.

Typing "Enter" on the command line, or tools-inquiry-time, will display the current time, the number of graphs, the creation time, the last updated time, the accumulated time, the elapsed timer time, and other information in the text box! At the command line, enter:

Enter, or tools-inquiry-status, will display the number of objects, the shape boundary, the display range, the base point, and the snap resolution in the text box. Wait. CASS is a professional software for measurement, which is a ,!! developed on the CAD platform

Don't be so pursuing that he didn't do it himself! It's hard to verify! Unless the information obtained earlier can be explained.

Otherwise, only he will tell you! As long as he gives you non-infringement and meets your requirements!

Right-click on the dwg file that your friend drew and select the one at the bottom"attributes"options, you can see it in the pop-up property box"Creation time"and the time of modification, and the time of access.

However, it should be noted that this method is not necessarily accurate, because if it is a dwg diagram on the Internet, your friend only needs to select all of them, cut them into his own new dwg file, the same is created by himself, so there is no way to find it, this can only ask his conscience, hehe, good luck!

If you don't know how to look at the time, you can just try him, ask some questions, and see if he's similar to the picture

It's impossible to tell who drew it.

File time, check in the file properties...

You have to have CAD software, that is, software that can open his drawings version 07 or 05. Then open the properties and look at the modification time, and you can see it.

In this case, it's really hard to tell whether it's self-drawn, but at least one thing is certain, that is, some of the pictures, text, annotations, etc. are copied from other pictures, and these pictures do not exclude that the base map is drawn by himself, that is, the picture is spelled together, resulting in more layers, but it should be "drawn by yourself", hehe. Even if it's on the Internet, he has a share of the credit, but I don't know if yours is a map of cass terrain?Cass generally has a large number of layers.

In addition, you can use purge to remove unwanted layers.

It can't be helped. Only ask him personally.

You can see the properties and time by right-clicking on the file.

CASS is also a software, a surveying and mapping software, similar to CAD.

Draw a large circle, draw an octagon inside, draw a small arc according to the size of 90, and then the array is obtained.

<> translate the tangent 10 downwards through the center of the circle a.

In ADE, sina = (r-10) (r+10) in abc, sina = (56-10) (56+2r+10) both sina are the same angle, so the above two equations get: (r-10) (r+10) = (56-10) (56-2r+10).

The solution obtains: (r-10)*(33+r)=23*(r+10) and finally obtains: r 2=560

So r=