08.09.15

Yesterday is the Chinese traditional day--Middle Autumn Day.I was alone and lonely.

1.I've finished the book ObjectARX.I don't think it's a good way of reading books.It's the best time when you cann't understand something in designing clearly.Now you will know what you do not know and want to know .It is good for me .

2.This diary has been interupted for 4 days.I cann't allow it happens again.

3.static_cast<AcDbEntity*>(curves[i]);

static_cast<type-id>(expression);

the structure changes the expression into a new format for necessity.

4.To create a single-line text is different from to creating a m-text.

When creating a single-line text,you need insert the two more needed parameter such as the insert point and the content of your text into the function.

But When creating a mtext,you should creat a vacaus mtext using the function AcDbMText() without initializing.After that ,you can alter the insert point of your text,the content,and other parameters.