cairo_matrix_translate(&Matrix, -dX, -dY);//cairo_matrix_init_rotate(&Matrix, dAngle);doubleX1 = Env.MinX;doubleY1 = Env.MaxY;doubleX2 = Env.MaxX;doubleY2 = Env.MaxY;doubleX3 = Env.MaxX;doubleY3 = Env.MinY;doubleX4 = Env.MinX;doubleY4 = Env.MinY; cairo_matrix_transform_point(&...
voiddtgtk_cairo_paint_solid_triangle(cairo_t*cr, gint x,inty,gint w,gint h, gint flags){/* initialize rotation and flip matrices */cairo_matrix_thflip_matrix;cairo_matrix_init(&hflip_matrix,-1,0,0,1,1,0);doubleC=cos(-(M_PI/2.0)),S=sin(-(M_PI/2.0));// -90 degreesC=flag...
CairoMatrix::initRotate -- cairo_matrix_init_rotate— Creates a new rotated matrix说明 面向对象风格 (method): public static CairoMatrix::initRotate ( float $radians ) : void 过程化风格: cairo_matrix_init_rotate ( float $radians ) : object Creates a new matrix to a transformation that rota...
? 1 cairo_matrix_t matrix;这个cairo_matrix 是存储仿射变换的数据结构。 ? 1 2 3 4 5 6 cairo_matrix_init(&matrix, 1.0, 0.5, 0.0, 1.0, 0.0, 0.0); cairo_transform (cr, &matrix);这一变换的数学形式可表示为: ? 1 2 3 4 5 6 cairo_matrix_init(&matrix, 1.0, 0.0, 0.7, 1.0, 0.0,...
<?php $matrix = cairo_matrix_init_rotate ( 0.3 ); ?> 参见 CairoMatrix::__construct() - Creates a new CairoMatrix object CairoMatrix::initIdentity() - Creates a new identity matrix CairoMatrix::initScale() - Creates a new scaling matrix CairoMatrix::initTranslate() - Creates a new...
cairo_matrix_init— Creates a new CairoMatrix object 说明 面向对象风格 (method): public CairoMatrix::__construct ([ float $xx = 1.0 [, float $yx = 0.0 [, float $xy = 0.0 [, float $yy = 1.0 [, float $x0 = 0.0 [, float $y0 = 0.0 ]]] ) 过程化风格: object cairo_matrix...
cairo_matrix_init(&matrix, 1.0, 0.0, 0.7, 1.0, 0.0, 0.0); cairo_transform(cr, &matrix); 这一变换的数学形式可表示为: 椭圆 下面的这个例子,画了一个灰常复杂的形状,它由一串旋转的椭圆形成。 ? 1 2 3 4 5 6 7 8 9 10 11 12
cairo_matrix_init(&matrix, 1.0, 0.5, 0.0, 1.0, 0.0, 0.0); This transformation shears y values by 0.5 of the x values. cairo_transform(cr, &matrix); We perform the transformation with the transform() method. Figure: Shearing Scaling ...
CairoMatrix::__construct — Creates a new CairoMatrix object CairoMatrix::initIdentity — Creates a new identity matrix CairoMatrix::initRotate — Creates a new rotated matrix CairoMatrix::initScale — Creates a new scaling matrix CairoMatrix::initTranslate — Creates a new translation matrix ...
(cairo_create(tgt)); cairo_matrix_t matrix; cairo_matrix_init(&matrix, 1, 0, 0, -1, 0, h); cairo_transform(cr.get(), &matrix); cairo_set_source_surface(cr.get(), painted_slices.surface.get(), 0, 0); cairo_paint (cr.get()); cairo_surface_write_to_png (tgt, "./map/...