| stroke |
([double alpha [, int clear]]) |
typedict.Graphics |
| |
Draws the current
path
on
drawable
using
foreground
and the optional
alpha
argument, which should be a number between
0.0
and
1.0
(the default), as the alpha value.
The values assigned to
linewidth,
linecap,
linejoin,
miterlimit,
dasharray,
dashphase,
and
CTM
when
stroke
is called are used to select the pixels that are actually painted when
path
is drawn.
The
path
is automatically cleared after being drawn unless the optional
clear
argument in zero, but it can also be preserved using
gsave
and
grestore.
| |
| Example: |
The program,
import yoix.*.*;
JFrame f = {
paint(Rectangle r) {
graphics {
gsave();
translate(144, 144);
rotate(-15);
scale(2, 2);
moveto(0, 0);
rlineto(72, 0);
rlineto(-36, 72);
rlineto(-36, 0);
closepath();
linejoin = JOIN_ROUND;
linewidth = 9;
scale(2, 1); // try initmatrix()
stroke();
grestore();
}
}
};
f.visible = TRUE;
defines a paint function in a frame that creates a simple path
that illustrates how fields like
linewidth,
linejoin,
and
CTM
influence the results produced by
stroke.
This is an important example that you should experiment with.
For example, remove the final
scale
or replace it with
initgraphics
and see if you understand what happens.
| | |
| Return: |
none
| | |
| See Also: |
clip,
clippath,
drawablebbox,
eoclip,
eoerase,
eofill,
erase,
erasedrawable,
fill,
ineofill,
infill,
instroke,
rectbutton,
rectclip,
rectcopy,
recterase,
rectfill,
rectmove,
rectstroke,
strokepath
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Yoix is a registered trademark of AT&T Inc.
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