I am trying to reproduce the following image I made in "Powerpoint".
Although, there is no difficulty in designing the boxes, I find it rather hard to properly position the red and black lines. One solution is to use pure coordinates, but I think that there must be an easiest way to do it, sin...
@ferahfeza : Thank you very much for your comment. I tried using \draw ($(PreAmp)!0.33!(Disc)$)--++(-90:0.5); but this move the line vertically... I don't know how to move it along the x axis. I'll edit my question to illustrate that.
That's because (-90:0.5) says: ''go in direction -90 degrees for 0.5cm''. Note that you're not force to use this syntax. For instance, if you say \draw ($(PreAmp)!0.33!(Disc)$)--++(-1,0); that would draw a horizontal line towards left of 1cm. And so on...
@ClaudioFiandrino : I want a vertical line to start at 1/3 of the yellow node. Using this \draw[very thick] ($(PreAmp)!0.33!(Disc)$)--++(0,-1); I get a vertical line, but it starts from the center.
then that code would never work. What you're after is \draw[very thick] ($(PreAmp.north west)!0.33!(PreAmp.north)$)--++(0,-1); or south. This is stated in my linked answer.
@ClaudioFiandrino : Your code give a line inside the node. I used \draw[very thick] ($(PreAmp.south)!0.33!(Disc.north)$)--++(0,-1); but it does the same as \draw[very thick] ($(PreAmp)!0.33!(Disc)$)--++(0,-1);. I am seeking for something like \draw (PreAmp.south/3)--(Disc.north/3). The closest to that is \draw[very thick] ($(PreAmp.south)!0.33!(Disc.north)$)--++(0,-1); but it doesn't do what I'd expected it to do...
Hi! The point is that \draw[very thick] ($(PreAmp.south)!0.33!(Disc.north)$)--++(0,-1); means: draw from the point which lies at 1/3 from PreAmp node to Disc Node until you reach 1 cm below.
And this is absolutely not what you want.
You want: draw from the point which lies at 1/3 from the south west anchor of PreAmp to its south east anchor.
Thus, you need to say \draw[very thick] ($(PreAmp.south west)!0.33!(PreAmp.south east)$)--++(0,-1);
Then, you still don't need this because it just draws a line of 1cm.
I tried this \draw[very thick] ($(PreAmp.south west)!0.33!(PreAmp.south east)$)--($(Disc.north west)!0.33!(Disc.north east)$); but I don't get a vertical line, but a tilted one...
Of course: that's because the trick works only if both nodes have the same dimensions. If they don't, you have to proceed with the code I posted in my previous message.
Thank's!!! That's great!!! And how to control the line if it's not straight?
I think I do understand!
Firstly you define the starting point, declare it as a coordinate and then you connect the coordinate to the upper part of the Disc node. I supposse `a|- ` draws a vertical line.
Great! I think I understand!!! I also assume that `\draw ($(PreAmp.south west)!0.33!(PreAmp.south east)$)coordinate (a)--(a|-Disc.north);` is equal to `\draw ($(PreAmp.south east)!0.33!(PreAmp.south west)$)coordinate (a)--(a|-Disc.north);`
Yes you are right! Now I tried to draw a horizontal line like this `\draw[red, very thick] ($(Disc.north east)!0.33!(Disc.south east)$)coordinate (c)--(c|-FIFO.west);` but I get a vertical line along the right edge of the node.
I don't understand why it's not working...
I can always use \draw ($(Disc.north east)!0.33!(Disc.south east)$) -- ($(FIFO.north west)!0.33!(FIFO.south west)$); i.e. to define the two points and connect them, but I find (c|-FIFO.west) more elegant.
Discussion between Claudio Fiandrino …
Discussion between Claudio Fiandrino …