::type)(_in_color[k]*t + _out_color[k]*(1-t));\n return ret;\n }\n\nprivate:\n double get_num_iter(const point& p) const {\n point Z(0,0);\n for (int i=0; i(Z.x*Z.x - Z.y*Z.y + p.x, 2*Z.x*Z.y + p.y);\n if (Z.x*Z.x + Z.y*Z.y > 4)\n return i/(double)MAX_ITER;\n }\n return 0;\n }\n};\n\nint main()\n{\n using deref_t = mandelbrot_fn;\n using point_t = deref_t::point_t;\n using locator_t = virtual_2d_locator;\n using my_virt_view_t = image_view;\n\n boost::function_requires>();\n gil_function_requires>();\n\n point_t dims(200,200);\n my_virt_view_t mandel(dims, locator_t(point_t(0,0), point_t(1,1), deref_t(dims, rgb8_pixel_t(255,0,255), rgb8_pixel_t(0,255,0))));\n \n //write_view(\"out-mandelbrot.jpg\",mandel, jpeg_tag{});\n\n return 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