vector-graphics

I am working on a simple drawing application, and i need an algorithm to make flood fills. The user workflow will look like this (similar to Flash CS, just more simpler): the user draws straight lines on the workspace. These are treated as vectors, and can be selected and moved after they are drawn. user selects the fill tool, and clicks on the drawing area. If the area is surrounded by lines in every direction a fill is applied to the area. if the lines are moved after the fill is applied, the area of fill is changed accordingly. Anyone has a nice idea, how to implement such algorithm? The

I would like to figure out how to save a bitmap or vector graphics image after creating a drawing with python's turtle module. After a bit of googling I can't find an easy answer. I did find a module called canvas2svg , but I'm very new to python and I don't know how to install the module. Is there some built in way to save images of the turtle canvas? If not where do I put custom modules for python on an Ubuntu machine? KilyenOrs from Tkinter import * from turtle import * import turtle forward(100) ts = turtle.getscreen() ts.getcanvas().postscript(file="duck.eps") This will help you; I had

My and a friend are working on a 2D game where the graphics will be .svg files and we will scale them appropriately either by rasterizing them first, or rendering them directly on a surface (which still would require rasterization at some point). The problem is, I've been looking all day to find a library that will allow me to take an .svg file and eventually get it to render in allegro. As far as I know, it would involve rasterization into some sort of format that allegro can read and then allegro could render the "flattened" image. So what are some C++ libraries I could use for taking an

I have problem with google maps BitmapDescriptor while creating icon for MarkerOptions using VectorDrawable , API 5.0+ Method used for creation: @NonNull private BitmapDescriptor getBitmapDescriptor(int id) { return BitmapDescriptorFactory.fromResource(id); } Everything works great when id argument contains png drawable, however if I try it with VectorDrawable defined in xml, App always crash when googleMap.addMarker(marker) ( BitmapDescriptor is not null). 11-05 10:15:05.213 14536-14536/xxx.xxxxx.app E/AndroidRuntime: FATAL EXCEPTION: main Process: xxx.xxxxx.app, PID: 14536 java.lang

I am creating a painting application in Actionscript (although my question is not Actionscript related). The basic idea is to start painting when the mouse is pressed and tracking the mouse movements. What I want to achieve is: reduce mouse "noise" and create more smoother looking lines. Right now, ( 1 ) is problematic because I get thousands of mouse movements within a few seconds. Due to ( 1 ) the line can look jaggy. What current idea: when the user finishes drawing the line, I store all movements in an array and reduce them (median threshold) and then use a spline algorithm to recreate a

One of the advantages of Flash/Flex is that you can use vector graphics (SVG), which is nice. I did a bit of searching around and came across this Javascript vector graphics library . It's pretty simple stuff but it got me thinking: is there any possibility of using vector graphics files such as SVG with Javascript/HTML or it just can't be done or done reasonably? I've used Raphaël Javascript Library and it worked quite well. Currently the library supports Firefox 3.0+, Safari 3.0+, Opera 9.5+ and Internet Explorer 6.0+. I know this is a pretty old question, but in case anyone comes across

I have a set of points in 3d. I form a line by joining these points. I have to obtain another line which is a shifted version of this line, such that the resultant shift is always to the right of the original line. What would be an approach to solve this problem? How to get the up vectors in the right direction each time? Assume these points to lie on a sphere. Looking at the top view of the sphere i would want something like this /\/\/\/\ /\/\/\/\ The first line is the original set of points and the second one the shifted set Ok i am adding the code std::vector<osg::Vec3> vertArray; // The

What are the standard algorithms used in vector graphics for rendering filled paths? I'm not only interested in the process of rendering strokes, I also would like to know how the shapes are filled - how it is determined if given point is inside or outside the path (I believe even specifying the rules of what inside and outside mean is not a straightforward thing). Spektre find outline (perimeter as polygon) this I think you already have triangulate (or cut to convex polygons) there are many approaches like: clip ear Delaunay see Wiki Polygon triangulation fill convex triangles/polygons this