I have created a circular curve and I'd like to add two points to it.  I know I can select two points and then hit subdivide to get a new point in between these two points, but that is not a very efficient way to create extra points as it will change the shape of the circle. I then have to move them to position, which requires quite a bit of work of adjusting all the handles and move the point itself. Is there a way to create the desired point by clicking on the circle so it won't change the shape of the circle?  I have tried installing the Curve Tools add-on as suggested, but I still can't find a way to make it work for this purpose.
121531
For example, in inkscape you can double click to add a new control vertex:    Is there a way to do that in Blender?  The closest thing I have found so far is CtrlLMB, but it just adds an unconnected vertex under the cursor.  Is there a way to add a connected vertex at a specific point along the curve, preferably without deforming the curve?
39961
I was trying to make a pipe with rounded cap or ends. Something like in the image, where I just added to spheres as "ends".     I've already surfed the internet a little and it looks like an uncovered issue, as simple as it seems.  I need to do this because I want to animate it later, like some type of growing body of water.  So, the method I'm trying out now is using a Bezier curve and applying some bevel, because of the "start bevel factor" and "end bevel factor" parameters which can modify the length of the pipe from its start or its end. Very handy.  What I've tried later, was to select a sphere for the bevel object, so it would return a pipe with rounded caps... but it was impossible.  So I'm totally open to new approaches, if you have any ideas!
105423
I'm a Software Engineer willing to learn more about design stuff. I've been trying to create a logo for a project and I am stuck trying to use curved lines. When moving anchors points, I'm having trouble with positioning dX and dY because of my trackpad's lack of precision. Is there a way to manually set dX and dY position in Illustrator?  Picture Example: Can't set dY to 12px.
9376
I followed a youtube tutorial to make the handle of this watering can. I had to make a path and a "bezier" circle, I don't really know what that means.    The outliner looks like this    I can't actually select the bezier thing or the curve by clicking on them, I have to select them in the Outliner. I'd like to do away with all of that stuff, it has the right shape now, I just want the mesh that you can see in the viewport, so I can reduce the polycount and export it. How do I do this? I tried pressing alt+C a couple of times with those things selected, as I found on the internet, but that didn't work.  Edit: Here's the file:
111498
I am trying to draw a special and contradictive plot : A circle with random distortions which have to remain constant regardless of how many times I build the document.  An example of what I am trying to achieve can be seen below    This figure was produced with the following code  \documentclass{standalone} \usepackage{tikz}    \usetikzlibrary{decorations.pathmorphing}   \begin{document}     \begin{tikzpicture}         % axes         \draw[ultra thin] (-2.5, 0) -- (2.5, 0);         \draw[ultra thin] (0, -2.5) -- (0, 2.5);         % undistorted sphere         \draw[ultra thin, dashed] (0, 0) circle (2.25cm);         \draw[ultra thin, dashed, -&gt;] (0:0) -- (125:2.25);         \node at (-1, 1) {$R$};         % distrorted sphere         \draw[very thick] plot[domain=0:350,smooth cycle ] (\x:2+rnd*0.5);         \draw[very thick, -&gt;] (0:0) -- (45:2.1);         \draw[ultra thin, -&gt;] (1, 0) arc (0:45:1);         \node at (1.2, 0.4) {$\theta$};         \node at (0.7, 1.25) {$R(\theta)$};     \end{tikzpicture} \end{document}   The problem with the code is that whenever I make a change to it and rebuild the document, the "distorted" circle will have a different shape, since I am using the rnd function. The reason I would like to have a constant-random shape is because I would like to denote its radius at an angle θ, therefore it has to touch the outline of the circle.  Any idea on how to achieve such a thing?
32955
If you have a line passing through the middle of a circle, does it create a right angle at the intersection of the line and curve? More generally, is it valid to define an angle created between a line and a curve? Is the tangent to the curve at the point of intersection a valid interpretation (I.e a semi circle has 2 right angles) I saw it in a debate thread and it got me curious now.
569
I want to extrude a curve in two directions.    Or join both curves into one, is it possible? I've tried copying it and then join segments, but I don't see Remove Doubles option while working with curves.
87389
How would one curve specific edges while leaving others alone? I'm trying to model this (circled) object, But can't figure out how to bevel side edges and leave the front-edge flat.     Tried using the bevel modifier in combination with edge creases but that apparently has no effect, not sure what else to do, as I am still very new to modeling/blender.
116264
I want to plot geodesics on a cylinder. These are straight lines, circles or helices. I can plot the first two, but I don't know how to draw the helices.  To be precise, I would like to know how to draw an helix on this cylinder (passing thru two points A and B, but the location of the points is not relevant), using TikZ exclusively (maybe with pgfplots, but without using pstricks):    \documentclass{standalone} \usepackage{tikz} \usetikzlibrary{shapes.geometric} \begin{document} \begin{tikzpicture} \node [cylinder,rotate=90,draw,aspect=2,minimum width=2cm,minimum height=3.5cm](C){}; \draw[fill] (-0.5,-0.5) circle [radius=0.045]node[below]{$A$}; \draw[fill] (0.5,0.75) circle [radius=0.045]node[below]{$B$}; \end{tikzpicture} \end{document}
40910
I'm really new to Blender and for my next project I need to create a cone with curved edges. I've searched online and messed around with Blender but I can't find a way. What could I try?  EDIT  Sorry I wasn't clear, what I mean is something like this :
107505
Can someone help me create a spiral (helix) similar to the one shown in the image? How might this be done except from drawing the curves perfectly by hand?    I achieved the desired result, but very painstakingly by drawing everything from hand. See the pictures below. To specify my question: Is there a simpler way to draw a shape similar to this?
74159
HELP! I need to know how to join Bezier curves to a mesh. I am trying to make a car with curved rims and the easiest way was to use a Bezier curve and then to bevel it but I need to join it all together in order to put it in my mod.
79476
Currently, I'm attempting to make multiple beziers have equidistant points.  I'm currently using cubic interpolation to find the points, but because the way beziers work some areas are more dense than others and proving gross for texture mapping because of the variable distance.  Is there a way to find points on a bezier by distance rather than by percentage?  Furthermore, is it possible to extend this to multiple connected curves?
48091
I'm in the following situation: Using TikZ, I have drawn a curve which is fairly simply described:  \documentclass{article} \usepackage{tikz} \begin{document} \begin{tikzpicture} \draw (1,1.5) .. controls (1,2.25) and (-1,2.25) .. (-1,2)         node[pos=0,anchor=west]{-1}         .. controls (-1,1.75) and (1,1.75) .. (1,2.5)         node[pos=1,anchor=west]{0}         .. controls (1,3.25) and (-1,3.25) .. (-1,3)         .. controls (-1,2.75) and (1,2.75) .. (1,3.5)         node[pos=1,anchor=west]{1}; \end{tikzpicture} \end{document}   However, now I'd like to specify a different style for part of this curve; It happens that the part of this curve I'd like to do something special with is not easily described explicitly. In this particular case, I'd like to apply the style [(-),thick,red] to some arbitrary segment of the curve. I'm looking for an efficient and simple way to do just that.  I was hoping that there might be an option to do something along the lines of \draw[only between 0.2 and 0.8] "curve description", but I'm not aware of any such possibilities.   For extra concreteness, here is a (Paint-made) picture of something like what I'm looking for:
104216
This may be a simple question.  Essentially I am procedurally generating random 3D figures using a bezier curve and bezier circle bevel object, however, one of the only things I can't figure out how to do is how to round the end caps of the object.   I have tried using a taper object like suggested  but have had only limited success.  This is about as close as I've gotten:   I should note that all of this is done through Python and I'm not modeling any of this by hand. So any suggestions for how I can make the rounded caps programmatically would be greatly appreciated.
65677
I am fairly new to Blender and I would love some help with this problem. I modeled a bezier curve a couple of days ago, and then wanted to change it.  I know how to connect two vertices of a bezier curve by pressing F to fill it, but how unfill two vertices, such as to disconnect them?  Here are some pictures to help out with my scenario. Picture 1 shows the two vertices I want to fill. Picture 2 shows both the vertices I wish to disconnect. Thanks!  P.s. What is this red line that showed on my curve? (picture 2)
42905
I have the following piece of tikz code:  \documentclass{standalone} \usepackage{tikz} \begin{document} \begin{tikzpicture}[&gt;=latex] \draw (2,2) circle [radius=2pt]; \draw (3,3) circle [radius=2pt]; \path[inner sep=0pt] (2,2) ++(45:2pt) node (A) {}; \path[inner sep=0pt] (3,3) ++(225:2pt) node (B) {}; \draw[-] (A) -- (B); \end{tikzpicture} \end{document}   where I want to connect two connect the circles with a line. Points A and B should be on the circles, but unfortunately they are slighty off. How can I fix the existing code?