line lenght

how could i draw a line composed of several distances in one attemp?

thanks

Start a line at any point, turn on ortho or polar, move the cursor away from the first point in a cardinal direction. With ortho you should see the axis "locked" to vertical or horizontal. With polar, you should see a "lock" when you get near horizontal or vertical. When you see the axis "locked" like that, enter the first distance, press enter, next distance, enter, next distance, enter......continue.

i could do it by polar tracking but the line is still devided in sections. i suppose after marking one line.

I have to presume, like @rickh, that you are talking about a line that would be the sum of a number of partial lengths; but don't forget that if you would follow the above advice will end with a bunch of contiguous items which isn't a recommended practice. So, call the JOIN command just after to convert them into a single item.

Alternatively, since seems that you use full AutoCAD, may try to either use the 'CAL tool or an AutoLISP expression on prompter:

(+ 25.4 304.8 101)

What doesn't result from your post is the angle you want to draw that line at.

It is divided into sections because that is how you are entering the information. Get out your calculator and figure out the overall total length. Or, if it needs to be a single entity (selectable with one pick) use a polyline instead.