![]() Other parameters to ttf_render_string() let you specify rotation see ttfont.h.įor examples, see the clientscr/ss_app.cpp and samples/exampple_app/uc2_graphics.cpp in the BOINC trunk. read font files they're in the project directory To display text, use the following API functions:.(Another source of free fonts is the GNU Freefont project.) You'll need to adjust the list of font names in ttfont.cpp. The set of free Liberation fonts in included the api/ttf/ directory. Include the desired TrueType fonts in your app versions.To build these libraries on the Mac, please see MacBuild. Add the files api/ttfont.cpp and api/ttfont.h to your application (they are not included in any BOINC library.)ĭepending on how you build the FreeType2 library, FreeType2 may require the libz and libbz2 libraries.įor Windows, prebuilt libraries are available see .To do this, link the application with api/static_graphics.cpp (edit this file to use your filename).īut you must change the (physical, not logical) name of the file each time.īOINC supports the display of text using TrueType fonts. ![]() You must include the image file with each workunit. This is the simplest approach since you don't need to develop any code. They investigate diseases, study climate change, discover pulsars, and do. The BOINC app, running on your computer, downloads scientific computing jobs and runs them invisibly in the background. The file api/ttfont.cpp has support functions from drawing nice-looking 3D text.Īn application can display a pre-existing JPEG file as its graphic. BOINC lets you help cutting-edge science research using your computer. Represents a set of randomly-generated stars that move forwards or backwards in 3 dimensions. Represents a flanged 3D panel, moving cyclically in 3 dimensions, on which text is displayed. Represents of 3D graph of a function of 1 variable. Includes member functions for drawing the reduced data as a 3D graph in several ways (lines, rectangles, connected surface). ![]() Represents a two-dimensional array of data, which is reduced to a smaller dimension by averaging or taking extrema. Represent progress bars, depicted in 3 or 2 dimensions. Represents a JPEG image displayed in 3 dimensions. Several graphics-related classes were developed for They may be of general utility. Int, int // system-specific key encodings ![]() Int is_down // true iff button is now down Int left, // whether left mouse button is down Xs and ys are the X and Y sizes of the window, and time_of_day is the relative time in seconds. Void app_graphics_render(int xs, ys, double time_of_day) The application must supply the following functions:Ĭalled once, after the window has been created. This function executes an event loop, and does not return. To use this library, the graphics app must callīoinc_graphics_loop(int argc, char** argv) The BOINC graphics API provides cross-platform support for developing graphics apps.Ī complete example can be found in boinc/samples/example_app.īOINC supplies a library (libboinc_graphics2.a) with support for graphics apps. ![]()
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