I have an ellipse centered at (0,0) and the bounding rectangle is x = [-5,5], y = [-6,6]. The ellipse intersects the rectangle at (-5,3),(-2.5,6),(2.5,-6),and (5,-3) I know nothing else about the ellipse, but the only thing I need to know is what angle the major axis is rotated at. seems like the answer must be really simple but I'm ju...
While working on SVG implementation for Internet Explorer to be based on its own VML format I came to a problem of translation of an SVG elliptical arc to an VML elliptical arc. In VML an arc is given by: two angles for two points on ellipse and lengths of radiuses, In SVG an arc is given by: two pairs of coordinates for two points on e...
I dont think this is quite possible, but its worth a shot to see what you guys say. I am trying to create a half-elliptical button in C# (not XAML, that might through another curve ball). If I wanted a pre-determined size for the buttons, I would just use images or something like that, but thats not the case since the size changes. Here ...
Given a "shape" drawn by the user, I would like to "normalize" it so they all have similar size and orientation. What we have is a set of points. I can approximate the size using bounding box or circle, but the orientation is a bit more tricky. The right way to do it, I think, is to calculate the majoraxis of its bounding ellipse. To do...
Support.sas.com provides this syntax for creating a prediction ellipse. The output dataset includes only the correlation results for the dataset. Is there any way to get information for the individual cases, such as labeling them in the graph or having the output include values for the individual cases? I've tried adding the ID option...
I'm getting XAML-blind I'm afraid. I'm developing a MS Surface application and I have an ellipse inside a ScatterViewItem (a container an end user can resize). I would like to keep the ellipse a circle (width == height) and keep it as big as possible (the lowest value of width/height of the SVI should be taken for both width/height prope...
Hi Is there a automatic way to get all the points of an ellipse stroke, without the filling points. Thanks in advanced ...
The AS3 getBounds function returns a rectangle that is not fitting tightly to a rotated ellipse. Instead it returns an axis-aligned rectangle based on the bounds of a rectangle whose width/height corresponds to the max/min diameter of the ellipse and follows its rotation. The answer to a similar question on Stack Overflow elegantly outl...
I am trying to draw circles around the current location on MKMapview.I tryied many codes but however no success. can any one suggest any links which should I refer. I am new to Iphone so dont have much knowledge about Quartz 2D. ...
I need to ellipsize multiligne textview. My component is large enough to display at least 4 lines with the ellipse, but only 2 lines are displayed. I tried to change the minimum and maximum number of rows in the component but it changes nothing ...
How to add a TextBlock to an Ellipse in WPF/Silverlight? ...
Hi, I have an R function which produces 95% confidence ellipses for scatterplots. The output looks like this, having a default of 50 points for each ellipse (50 rows): [,1] [,2] [1,] 0.097733810 0.044957994 [2,] 0.084433494 0.050337990 [3,] 0.069746783 0.054891438 I would like to superimpose a number of suc...
Probably a simple question but: How do I programmatically change the color of an ellipse that is defined in XAML based on a variable? Everything I've read on binding is based on collections and lists -can't I set it simply (and literally) based on the value of a string variable? string color = "red" color = "#FF0000" ...
Hello, I am not sure if it's possible at all in HTML, but I would still ask it here: Is there any HTML code that would stand for an ellipse or a rounded rectangle? ...
Hi all. I have a rectangle in .NET in which I draw an ellipse. I know the width, height and center point of that rectangle. Of course the center point of the rectangle is also the center point of the ellipse. I know how to calculate a point on a circle, however I have no clue about an ellipse. I have those parameters and an angle, i...
Hi, I'm scaling an ellipse in an animation with the following code: ScaleTransform myScTransform = new ScaleTransform(); TransformGroup myTransGroup = new TransformGroup(); myTransGroup.Children.Add(myScTransform); newPHRadio.RenderTransform = myTransGroup; newPHRadio.RenderTransformOrigin = new ...
Hello, I am trying to display a sphere in PGF/TikZ to illustrate the idea of great circles. The code for my current result is: \begin{tikzpicture} \tikzfading[name=fade right, left color=transparent!20, right color=transparent!90] \tikzfading[name=fade out, inner color=transparent!100, outer color=transparent!10] \tikzfading[name=fa...
Hi guys, I would like to ask how to plot ellipse in such format?? a*x^2+b*y^2+c*x*y+d*x+e*y-1=0 I tried with ezplot and contour and it didn't seem to work. Thank you guys! Cliff.C ...
Hi, I have to draw an ellipse of arbitrary size and orientation pixel by pixel. It seems pretty easy to draw an ellipse whose major and minor axes align with the x and y axes, but rotating the ellipse by an arbitrary angle seems trickier. Initially I though it might work to draw the unrotated ellipse and apply a rotation matrix to eac...
I'm struggling to figure out the math to convert between two different definitions of an arc. The source definition includes a start point, end point and control point on the arc as well as the eccentricity of the ellipse and the angle of rotation of the major axis. I need to convert this into an Arc definition I can use to initialize ...