protected override Autodesk.AutoCAD.EditorInput.SamplerStatus Sampler(Autodesk.AutoCAD.EditorInput.JigPrompts prompts)
{
JigPromptPointOptions jigOpts = new JigPromptPointOptions();
jigOpts.UserInputControls = UserInputControls.GovernedByOrthoMode | UserInputControls.NullResponseAccepted;
jigOpts.UseBasePoint = true;
jigOpts.BasePoint = (Point3d)this.startPoint;
jigOpts.Message = "\n 选择下一点或者Enter结束";
PromptPointResult res = prompts.AcquirePoint(jigOpts);
Point3d positionTemp = res.Value;
this.endPoint = positionTemp;
if (res.Status == PromptStatus.Cancel || res.Status == PromptStatus.None)
return SamplerStatus.Cancel;
else
return SamplerStatus.OK;
}