Turtle Graphics: Difference between revisions
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A WASSERMANN (talk | contribs) No edit summary |
A WASSERMANN (talk | contribs) No edit summary |
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this.board.createElement('line',[this.points[this.points.length-2],p],this.attributes); | this.board.createElement('line',[this.points[this.points.length-2],p],this.attributes); | ||
} | } | ||
this.board.update(); | //this.board.update(); | ||
}; | }; | ||
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var t = this.board.createElement('transform', [-angle*Math.PI/180.0,this.turtle], {type:'rotate'}); | var t = this.board.createElement('transform', [-angle*Math.PI/180.0,this.turtle], {type:'rotate'}); | ||
t.applyOnce(this.turtle2); | t.applyOnce(this.turtle2); | ||
this.board.update(); | //this.board.update(); | ||
} | } | ||
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var p = this.board.createElement('point',this.pos,{fixed:true,name:' ',visible:false}); | var p = this.board.createElement('point',this.pos,{fixed:true,name:' ',visible:false}); | ||
this.points.push(p); | this.points.push(p); | ||
this.board.update(); | //this.board.update(); | ||
} | } | ||
Revision as of 16:13, 19 December 2008
This is a very basic implementation of turtle graphics with JSXGraph.
List of commands
There is a predefined turtle object t. Therefore, all commands start with t, like t.fd(100);
- t.forward(len); or t.fd(len);
- t.back(len); or t.bk(len);
- t.right(angle); or t.rt(angle);
- t.left(angle); or t.lt(angle);
- t.penUp();
- t.penDown();
- t.clean();
- t.setPos(x,y);
Snowflake Example
