Difference between revisions of "Bezier curves II"
From JSXGraph Wiki
Jump to navigationJump to searchA WASSERMANN (talk | contribs) |
A WASSERMANN (talk | contribs) |
||
| Line 9: | Line 9: | ||
col = 'blue'; | col = 'blue'; | ||
p.push(brd.createElement('point',[0.75,2.5],{strokeColor:col,fillColor:col})); // control point | p.push(brd.createElement('point',[0.75,2.5],{strokeColor:col,fillColor:col})); // control point | ||
| − | p.push(brd.createElement('point',[-0.3, | + | p.push(brd.createElement('point',[-0.3,1.3],{strokeColor:col,fillColor:col})); // control point |
col = 'red'; | col = 'red'; | ||
| Line 15: | Line 15: | ||
l.push(brd.createElement('segment',[p[0],p[1]],{strokeOpacity:0.5})); | l.push(brd.createElement('segment',[p[0],p[1]],{strokeOpacity:0.5})); | ||
| + | l.push(brd.createElement('segment',[p[1],p[2]],{strokeOpacity:0.5})); | ||
| + | l.push(brd.createElement('segment',[p[2],p[3]],{strokeOpacity:0.5})); | ||
var c = brd.createElement('curve', JXG.Math.Numerics.bezier(p), {strokecolor:'blue', strokeOpacity:0.6, strokeWidth:5}); | var c = brd.createElement('curve', JXG.Math.Numerics.bezier(p), {strokecolor:'blue', strokeOpacity:0.6, strokeWidth:5}); | ||
Revision as of 13:15, 28 September 2009
The red points are connected by a cubic Bezier curve. The blue points are the control points.
