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Where is the y coordinate of a tikzpicture?
The Y coordinate of the line should be halfway between points a and b (a is below b). The left and right endpoints of the line are on the bounding box of the tikzpicture. Here’s how I’m doing this now, using the intersection operator: This strikes me as rather roundabout.
How to extract the components of a coordinate?
This is a question regarding TikZ and PGF. I’m trying to extract the x-, y-, and z-components of a coordinate into a macro so that the values can be manipulated using \\pgfmathparse commands. As an example: Code, edit and compile here: I would like this example to output the value 2.34, the (unitless) x-component of coordinate (A).
How to change the coordinates of the XYZ coordinate system?
By default, the x-vector points 1cm to the right, the y-vector points 1cm upwards, but this can be changed arbitrarily using the xand ygraphic options. Similarly, you can specify coordinates in the xyz-coordinate system.
How is an anchor coordinate defined in TikZ?
In PGF and in TikZ it is quite easy to define a node that you wish to reference at a later point. Once you have defined a node, there are different ways of referencing points of the node. An anchor coordinate is a point in a node that you have previously defined using the node operation.
How to get one component of a TikZ / PGF coordinate?
What I’d rather do is get the Y coordinate of (h0) and the X coordinates of the east and west sides of the bounding box, and compose the coordinates myself. I’d like to do this, but it isn’t supported syntax:
How to draw a straight line with TikZ?
Maybe you can help me, I try to draw a line from a Point/Coordinate to a straight line. I use Tikz to draw.
How to achieve relative positioning in TikZ-TeX-LaTeX Stack Exchange?
As has been mentioned in the comments, you can use the positioning library; here’s a simple example illustrating the options available when using, for example, above left (the same diagram is repeated twice; the second time the on grid option is activated):
How do you create a path in TikZ?
The basic build- ing block of all the pictures in TikZ is the path. You start a path by specifying the coordinates of the start point, as in (0;0), and then add a \\path extension operation”. The simplest one is just –. The operation is then followed by the next coordi- nate. Every path must end with a semicolon.
How to use x coordinate of a point?
They indicate vertical component of the first and horizontal component of the second for -| and vice versa for |-. I have converted the coordinate s to node s to show the locations. Here’s a less convenient solution than the solution proposed by Percusse but closer to the initial demand.
How to adapt a solution to a point in TikZ?
You can also adapt the solution from Extract x, y coordinate of an arbitrary point in TikZ and invoke \\ExtractCoordinate {D} before you need the coordinates of this point and then use \\XCoord or \\YCoord where you need the value. The code below produces output identical to Gonzalo Medina’s answer.