这章介绍路径,本人觉得这是比较难和精髓的一部分。
先介绍基本知识:
可以参考:
http://www.chinasvg.com/support/svg-tutorial/svg-path-directive-guide.html
/* 命令解释:
M = moveto 参数:(x y)
L = lineto 参数:(x y)
H = horizontal lineto 参数:(x)
V = vertical lineto 参数:(y)
C = curveto 参数:(x1 y1 x2 y2 x y)
S = smooth curveto 参数:(x2 y2 x y)
Q = quadratic Belzier curve 参数:(x1 y1 x y)
T = smooth quadratic Belzier curveto 参数:(x y)
A = elliptical Arc 参数:(rx ry x-axis-rotation large-arc-flag sweep-flag x y)
Z = closepath 参数(none)
/
例子:
var p1 = paper.path('M250 150 L180 350 L350 350 Z').attr({stroke:'red','stroke-width':2}); var p2 = paper.path('M350,100 h-100 a100,100 0 1,0 100,-100 z').attr({stroke:'blue','stroke-width':2}); var p3 = paper.path('M350,300 a100,100 0 1,0 100,-100 z').attr({stroke:'green','stroke-width':2}); var p4 = paper.path('M150 100 L100 200 Z').attr({'stroke-width':2});
var p5 = paper.path('M100 100 L150 200 Z').attr({'stroke-width':2});
注释:例子p1定义了一条路径,它开始于位置 250 150,到达位置 150 350,然后从那里开始到 350 350,最后在 250 150 关闭路径。
效果图: