sector

I'm trying to make a sort of pie-chart shape on a canvas element, however I can't seem to find any function that does this by itself. I only seem to be able to draw full circles and segments. Is there an easy way to do this? (See also: Wikipedia on circle terminology ) The following should work: context.moveTo(cx,cy); context.arc(cx,cy,radius,startangle,endangle); context.lineTo(cx,cy); context.stroke(); // or context.fill() with cx , cy being the center of the arc. 来源： https://stackoverflow.com/questions/6230363/how-to-draw-a-circle-sector-on-an-html5-canvas

I would like to make a sector of a circle on WP7. I tried to do this with the ellipse class and I found a lot of solution, which make a gauge or pie chart or something, but I need just the essence. Could anyone help? the aim is to show just one part of a circle (or ellipse). Like the yellow area in the picture: Thanks, Laci Here's a fairly simple solution to the problem, though it does not use an Ellipse and it requires a little trigonometry: <Path Fill="Black" Data="M0,0 L0,-100 A100,100 0 0 1 70.7,-70.7 z" /> The Data property uses Path Markup Syntax . The "M" at the beginning tells the pen