画箭头和画直线同样对待.
with canvas do begin
moveto(oldx,oldY);
lineto(newx,newy);
moveto(newx,newy);
lineto(newx-2,newy-2);
moveto(newx,newy);
lineto(newx-2,newy-2);
当然自己要判断直线方向.和画线次序(right to left etc)
with canvas do begin
moveto(oldx,oldY);
lineto(newx,newy);
moveto(newx,newy);
lineto(newx-2,newy-2);
moveto(newx,newy);
lineto(newx-2,newy-2);
当然自己要判断直线方向.和画线次序(right to left etc)
解决方案 »
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