shapes

问题 I'm completely new to programming in general, but I've been teaching myself C# for about 6 months. Currently working on WPF/XAML. I'm trying to learn about rendering shapes in WPF. I have a Path created in a custom class that my AllocationCanvas is binding to in the XAML below. For whatever reason, it just won't draw, even though I know the binding is set up correctly. <Canvas x:Name="AllocationCanvas" Grid.Row="0" Grid.Column="0" Width="Auto" Height="Auto" DataContext="{Binding

问题 I am trying to make the active list item look like this: This is what I currently have (the blue triangle is a right triangle instead of an obtuse isosceles): Here is my HTML: <ul class="guideList"> <li><a>Consulting</a></li> <li class="active">Law<span class="activePointer"></span></li> <li><a>Finance</a></li> <li><a>Technology</a></li> </ul> Here is my CSS: .guideList{ font-size: 12px; line-height: 12px; font-weight: bold; list-style-type: none; margin-top: 10px; width: 125px; } .guideList

问题 I'm trying to make a progress bar in the form of a rounded rectangle drawn on canvas, this jsfiddle has the shape: http://jsfiddle.net/xT3ax/ this.beginPath(); this.moveTo(x + cornerRadius.upperLeft, y); this.lineTo(x + width - cornerRadius.upperRight, y); this.quadraticCurveTo(x + width, y, x + width, y + cornerRadius.upperRight); this.lineTo(x + width, y + height - cornerRadius.lowerRight); this.quadraticCurveTo(x + width, y + height, x + width - cornerRadius.lowerRight, y + height); this

问题 I was given small assignment as below . Can you please throw some light on how to implement this Write a simple structured program and simple oo program that implements display shape function. Your program should simply print out (to console ) the number if shapes and then ask each shape to display itself which will also cause a line of output to be generated to the console , one for each shape . It is perfectly OK for your main program to create a collection of shapes before on to sorting

问题 I'm practicing my swing abilities for the upcoming test, and fried gave me idea to draw biohazard sign like this : alt text http://img62.imageshack.us/img62/8372/lab6b.gif I could draw the circles with Elipse2D, but then I somehow need to cut those 3 triangles. Any ideas how I can do that ? 回答1: You can use Java2D and canvas for this. The things that you may be using are, Circle and Arc. You should have three arcs with 30 degrees. I tried using simple graphics over the frame. Here is an

问题 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 each point, but it seems as though that could cause errors do to rounding, and I need rather high precision. Is my suspicion about this method correct? How could I

问题 To begin, define a base class Shape that stores the shape's length, position, and (randomly generated) color. From there, you can inherit these basic properties and further specify additional shapes. At a minimum, your program must support squares, rectangles, triangles, circles, and ellipses. Each shape should define its own class in an inheritance hierarchy based on Shape. Recall that inheritance often spans more than one level, so consider and implement an appropriate inheritance scheme.

问题 Hi i was able to adjust all the shapes width and height of visio shapes programatically, but i was not able to adjust the width of the Pool \ Lane shape from visio BPMN Shapes.Why doesnt the width is not getting adjusted. shape.get_CellsSRC((short)Microsoft.Office.Interop.Visio.VisSectionIndices. visSectionObject, (short)Microsoft.Office.Interop.Visio.VisRowIndices. visRowXFormIn, (short)Microsoft.Office.Interop.Visio.VisCellIndices.visXFormWidth).ResultIU = 15; whatever i tried it only takes

问题 I want to create a clickable image, my image has some different clickable parts in it, like this one: I want to draw a custom shape like : A,B,C,D,E,F and make sure when user click on of this something happen. the problem is I don't have any kind of idea to, how create shapes like the shapes in the image make sure it just fix on the image and in different screen size don't see a massed up thing. 回答1: Will there be more than many of such images? If no I suggest you to create mask image for

问题 I need to generate random lobulated contours such as the following Any ideas or algorithms on how to do this ?? The software I am going to use is matlab, however I have no problem if you post solutions in other languages too... p.s I only need to plot a random contour that resembles the above... 回答1: How about this? degree = 5; numPoints = 1000; blobWidth = 5; theta = 0:(2*pi)/(numPoints-1):2*pi; coeffs = rand(degree,1); rho = zeros(size(theta)); for i = 1:degree rho = rho + coeffs(i)*sin(i