| translate |
(Number tx, Number ty) |
typedict.Matrix |
| |
Changes this matrix so that the origin is shifted
tx
units horizontally and
ty
units vertically, and returns this matrix to the caller.
The mathematical description of
translate
says it transforms the point
(x, y)
into
(x + tx, y + ty)
which means the new and old matrices map
(0, 0)
and
(tx, ty)
into the same point.
| |
| Example: |
The program,
import yoix.*.*;
JFrame f = {
Color background = Color.black;
paint(Rectangle rect) {
graphics { // "named block"
gsave();
arc(0, 0, 72, 0, 360);
setrgbcolor(1, 0, 0);
fill();
translate(size.width/2, size.height/2);
arc(0, 0, 72, 0, 360);
setrgbcolor(0, 1, 0);
fill();
translate(size.width/2, size.height/2);
arc(0, 0, 72, 0, 360);
setrgbcolor(0, 0, 1);
fill();
grestore();
}
}
};
f.visible = TRUE;
defines a paint function in a frame that uses translate to draw a red
circle in the upper left corner, a green circle in the center, and
a blue circle in the lower right corner.
| | |
| Return: |
Matrix
| | |
| See Also: |
concat,
concatmatrix,
currentmatrix,
dividematrix,
dtransform,
Graphics,
identmatrix,
idtransform,
initmatrix,
invertmatrix,
itransform,
maptopixel,
rotate,
scale,
setmatrix,
shear,
transform
|
|
Yoix is a registered trademark of AT&T Inc.
|
|
