Apple MA434Z/A User Manual - Page 933

Text Manipulation V: Extracting Part of a String This function can be used to extract the file name from a FileOut or FileIn node so you can print it on a slate. Use it in a Text function. const char *getBaseFilename(const char *fileName) { extern const char * strrchr(const char *, char); const char *baseName = strrchr(fileName, '/'); return baseName ? baseName+1 : fileName; } To use it, place a line in the text parameter of a Text function, such as: {getBaseFilename(FileIn1.imageName)} Tiling Example: TileExample This allows you to take an image and tile it into rows and columns, similar to the Tile node in the Other tab. However, this one also randomly moves each tile, as well as scales the tiles down. The random movement is generated with the turbulence function (see Chapter 31, "Expressions and Scripting," on page 935). Because of this, it is less efficient than the Tile function, which can be viewed in the /include/nreal.h file. image TileExample( image In=0, int xTile=3, int yTile=3, float angle=0, float xScale=1, float yScale=1, float random=30, float frequency=10 ) { result = Black(In.width, In.height, In.bytes); curve float xFactor=(In.width/xTile)*.5; curve float yFactor=(In.height/yTile)*.5; for (int rows=1; rows