Use of the MagickDistortImage method from the MagickWand C API

magickdistortimage.c

MagickWand *image;
int num_args;

double args[1] = {.5}; // scale the image to half size
double args[1] = {45}; // rotate the image 45 degrees from the center
double args[2] = {.5, 45}; // scale and rotate image
double args[3] = {0, 0, 45}; // rotate the image from 0,0
double args[4] = {0, 0, .5, 45}; // rotate and scale image
double args[6] = {0, 0, .5, 45, 50, 50}; // rotate, scale and translate image to 50,50

num_args = sizeof(args)/sizeof(args[0]);

MagickDistortImage(image, ScaleRotateTranslateDistortion, num_args, args, MagickTrue);