I have found a very good solution to this from MapBox called Polylabel. The full source is available on their Github too. Essentially it tries to find the visual centre of the polygon as T Austin said. Certain details suggest this may be a practical solution: Unfortunately, calculating [the ideal solution ] is both complex … Read more
There are 72 points per inch; if it is sufficient to assume 96 pixels per inch, the formula is rather simple: points = pixels * 72 / 96 There is a way to get the configured pixels per inch of your display in Windows using GetDeviceCaps. Microsoft has a guide called “Developing DPI-Aware Applications”, look … Read more
You do not need to have any objects in your scene to do this. You already know the camera position. Using vector.unproject( camera ) you can get a ray pointing in the direction you want. You just need to extend that ray, from the camera position, until the z-coordinate of the tip of the ray … Read more
Three problems here. First scanf(ifp,”%lf %lf\n”,&theta,&Cla); You’re calling scanf when you look like you want to use fscanf: fscanf(ifp,”%lf %lf\n”,&theta,&Cla); Second is the file you’re opening: ifp=fopen(argv[0],”r”); argv[0] is the name of the running executable, which is probably not what you want. If you want the first argument passed in, use argv[1] ifp=fopen(argv[1],”r”); Last is … Read more
A vector is a templated class that can store anything that you ask it to store when you defined it. For example: vector<int> // vector that will store any number of integers vector<double> // vector of double precision floating points vector<string> // vector of strings vector<T> // vector of Ts, being understood that T is … Read more