# Tagged Questions

101 views

### how can I use intersection points to draw a proper arc for my simple instance

I would like to join points (s) and (t) via arc. Could u help me to implement it?! I've tried it by such way \draw (s) arc (t); It is wrong! To say simply I need the correct arc without spreading over ...
146 views

### Am I able to intersect curves after rotating?

I would like to intersect arc and sloped line as it's discribed in the code after having rotated the sloped line. Why doesn't the red point belong to sloped line? I hope my question is quite clear for ...
174 views

### How to find coordinates of intersecting circles using TikZ?

I'm using code based on Tomas M. Trzeciak’s Stereographic and cylindrical map projections example to draw spheres. I have added three great circles to the sphere: The equator, and two longitudinal ...
96 views

### Self Intersecting Diagrams, PSTricks

Okay, so I have a self-intersecting curve drawn using \pscurve in PSTricks, and I would like the interestions to look something like -|- as opposed to +. I know it can be done using double lines in ...
32 views

### tikz 3D intersection of planes [duplicate]

I have got this figure in form of a PNG graphics. I can directly use it in my latex document. However, I would like to know if I can draw it with Tikz. I don't have much idea about two things - ...
83 views

### Do until there is no intersection point

I want to do a loop until there is intersection points between two paths edit I oblic lines until they don't intersect the circle. When there is zero intersection points I have an error. Is there a ...
128 views

### Stacking plots in animation using fill between library (with dynamic calculation of intersection segments?)

As a followup question to Filling the area under a graph based on intersection with another graph, I'm looking to create the following effect: Fill based on the coordinates of the intersection ...
232 views

### Filling the area under a graph based on intersection with another graph

I'm trying to produce this: But I can't get any further than this: This is my code: \documentclass{minimal} \usepackage{pgfplots} \pgfplotsset{compat=newest} \usetikzlibrary{intersections} ...
216 views

I am an old LaTeX user but just beginning to discover PGF and TikZ. I am trying to shade areas between 3 curves and from what I read I could do it with min and max functions, but forwhatever reasons ...
349 views

### TikZ: How to draw an helicoid and fill area below curve

I am trying to draw an helicoid and to fill the area below the curve. Since the aim of the figure is just to "give an idea", I would prefer to keep it simple and to avoid using PGFplots and GNUplot -- ...
119 views

### Fill from path to axis with tikz intersections

I am trying to represent parts of a plot that extend from a simple curve to the boundaries, but I can't find a simple way of creating the closed path from the intersection of two paths. I have seen ...
181 views

### Number of intersection points

In this examle from pgfmanual p 132, how to use \t the number of intersections point outside \fill command. I tried \def\Nb{\t} but it dosen't work. \begin{tikzpicture} \clip (-2,-2) rectangle (2,2); ...
179 views

### tikz, intersection of four circles WITHOUT any fill, but text

Hej, I´ve got a problem with the following diagram. I want the intersection of all four circles to be white, not filled but transparent as there has to be a text in the intersection. I am ...
165 views

### How to calculate intersections of a line defined by a segment and an ellipse in tikz

EDIT Here's what I intended to ask, but didn't clearly formulate initially. The Tikz package intersections allows one to calculate and manipulate the intersection point of two non-parallel lines ...
401 views

### pgfplots intersection with path

I am trying to find the intersections of a path with plots from pgfplots via the intersection library. The intersections found clearly do not match the visable intersections. It seems as if they are ...
166 views

### Given four nodes forming a quadrilateral, how do I find the node at the intersection of the diagonals [duplicate]

I'm trying to find and name a node at the intersection of the diagonals of a quadrilateral formed by four other nodes. However, I'm not drawing a path. All I can seem to find in the tikz manual are ...
335 views

### TikZ doesn't find all intersections between plot and a line

Why doesn't TikZ find all intersections. They are obviously there … \documentclass[border=10mm]{standalone} \usepackage{tikz} \usetikzlibrary{intersections} \begin{document} ...
175 views

### Calculate the intersection between a path enclosed by a scope and another path

I have constructed a circle using the through package. I would like to create a coordinate at the intersection of this circle and another line. Is there a way to do this? I tried to name the path ...
207 views

### TikZ: naming paths in a \foreach and accessing them later

\documentclass[convert = false, tikz]{standalone} \usetikzlibrary{calc} \usetikzlibrary{intersections} \begin{document} \begin{tikzpicture} \coordinate (P1) at (60:4cm); \coordinate (P2) at ...
618 views

### How can I draw tikz arrows on a calculated triangle?

I am going to need a lot of vector triangles and would like to do them with TikZ. My TikZ experience is close to not existing. Therefore I would like to ask you, if there is a possibility to draw ...
158 views

### Tikz: wrong intersection with axis

In the following code the dashed line that intersects with the y-axis is out of place and I don't know where I'm making the mistake (if there is any): \documentclass{article} \usepackage{pgfplots} ...
217 views

### TikZ: using the intersections library for normal vector

Consider the code: \documentclass[convert = false]{standalone} \usepackage{tikz} \usetikzlibrary{arrows} \usetikzlibrary{calc} \usetikzlibrary{intersections} \begin{document} \begin{tikzpicture}[ ...
128 views

I am trying to construct a tangent line to the dashed curve but TeX is telling me that No shape named intersection-2 is known. \documentclass{standalone} \usepackage{tikz} \usetikzlibrary{calc, ...
970 views

### Draw line from a point to another line (along x-axis or y-axis) in TikZ

I would like to make use of the intersection tools to draw a line to another line in a way that it only reaches along the x-axis or y-axis. I mean I currently think that I would achieve this via the ...
506 views

### TikZ: Drawing an ellipse through two points

I am trying to construct a portion of an ellipse that connects point P1 and P2 but I don't know anything about the ellipse besides that F is one of the foci. All I know is that an elliptic arc ...
242 views

### Tikz: Drawing a line from a focus to the edge of an ellipse

This question is similar to Tikz: connecting two vectors from the focus of an ellipse to the edge but not the same. In this instance, I want the the length of line to be a specific distance. If ...
726 views

### Tikz: drawing a line to the edge of a circle

If I wanted to draw a line to the edge of a circle, I could simple do the following \pgfmathsetmacro{\a}{2} \draw (0, 0) circle (\a cm); \draw[-latex] (0, 0) -- ({\a * cos(angle)}, {\a * ...
391 views

### Tikz: placing a node at the intersection of two circles along a hyperbola

I know one can use the intersection package to find the point of intersection but I don't understand how to do it yet. I would like to label the increasing order of the intersections F^*_2, F^*_1, ...
346 views

### Drawing little semicircle to show that two intersecting lines are not connected [duplicate]

I want my diagram to show that two intersecting lines are not actually connected, but one passes above the other. The best result I would like to achieve would be a small semicircle as used in ...
256 views

### Highlighting intersections

I would like to highlight the region C in the Euler diagram below. I tried to play around with fill opacity command, but I was not able to highlight C alone. Should I use the intersections libraries ...
1k views

### Crossing paths in TikZ without intersection

Once again, I'm preparing a new logic puzzle; Resuko to be precise. For the race track, I would like to have a symbolized bridge/underbridge -|-. I searched this site, but only found this question: ...
512 views

### Right Angle Symbol Alignment with TikZ/Calc

I used a solution from @Jake from this post Insertion of Perpendicular Symbol at Intersection of Two Lines, but the alignment is not quite right. I have my suspicions why, but I don't understand the ...
274 views

### How to find intersections between line and rectangle with rounded corners [closed]

I'm trying to display a line "under" a rectangle. For this I tried using the intersections package, but somehow I the line doesn't stop: \documentclass[a4paper]{article} \usepackage{tikz} ...
23 views

### node at sloped path and/or not respecting every path/.style [duplicate]

I'm producing a schematic Nyquist plot, and I want to create an arc between the x-axis and a straight line, which should be denoted PM (phase margin). I use the intersections library to find the ...
378 views

### ellipse intersecting a circle

I am trying to draw an ellipse which intersects the sphere of influence, that is, the dashed circle around the moon. The ellipse needs to pass through (-170.864:.7cm) location along the v0 vector and ...
422 views

### How to decorate a path with arrows at certain coordinates?

Next example (taken from TiKZ manual) shows how to find intersection points between two paths. Once you know intersection points it's easy to decorate them with any marking. But if I want to use an ...
1k views

### Intersection of 2 surface plots in pgfplots

My question is pretty much a duplicate of this one. I'd like pgfplots to display the intersection between tho surface plots properly. Unfortunately, my function is quite different from the one in the ...
79 views

### Why two macros in intersections are not expancded?

Two path names inside intersections are not working. Only one macro seems to work. I have tries all the combinations of macro expansion but in vain. In the following 'h\x and \vy' is not working. It ...
513 views

### Make line extend beyond endpoint and intersect with line

Is it possible to have a line go through two coordinates and then extend until it intersects with another line? The line in question is not horizontal nor vertical (otherwise I could use the ...
466 views

### Tikz — Rotating a line around an intersection

I've been trying to rotate a line around an intersection. The problem (I think) is that the intersection is in a previous scope (I need that to have the correct clipping), and the new scope doesn't ...
292 views

### TikZ Intersection missing the true intersection slightly

I'm having issues with the intersection feature. It works, but it seems to "miss" the true intersection a bit. The code below produces the error for me. See this image (can't post it directly because ...
265 views

### Lines generated with TikZ intersections are too short

My script calculates several intersections of lines (green) with a vertical "wall" (not shown). The intersections (small red dots) are fine. But the lines from one intersection to another intersection ...
631 views

### Intersection of lines to draw a convex function

I'm trying to draw (in TikZ) a convex function f constructed as the minimum of the linear functions f1, f2, f3 and f4. To do that, my inclination is to use the intersections of said lines to find the ...
444 views

### tikz intersection fails in combination with the library calc

In the second example I am trying to work the the library intersection. It works fine as long as I don't use the calc library. The first example shows my intention. I am using ($2*(w1')$) which ...
2k views

### How to Intersect an arc with a line without calculating the angle

I'd like to draw an optics-related figure, for which I need to draw several beams with varying opening angles, which will need to be labeled. What I've come up at the moment (boiled down to a minimal ...
2k views

### Coordinates of intersections

In axis environment I have a curve and a line intersecting it. How can I get components of intersection-1, intersection-2 etc. in axis units? \documentclass{minimal} \usepackage{pgfplots} ...
167 views

### finding points on path with given x-coordinate (marking f(x) points for given x's)

A y=f(x) function is given as path; for a set of x-coordinates, I want to place node (x,f(x)) onto the path, and connect it with (x,0) with vertical line. I have not got very far myself: \tikz{ ...
5k views

### TikZ: Intersection of two lines

what is the easiest way to determine the intersection of two lines? I tried \usetikzlibrary{intersections} \begin{tikzpicture}[every node/.style={black,above right}] \draw[name path=line 1] (0,0) -- ...