C#AcadDoc.ModelSpace.AddHatch使用方法 求解决

Question

C#用winform在CAD里画图
private void CreatHatch(int patternType,String patternName,bool associativity, object hat)
{
AcadHatch hatch = AcadDoc.ModelSpace.AddHatch((int)AcPatternType.acHatchPatternTypeUserDefined, "ANGLE", true, hat);
hatch.HatchObjectType = AcHatchObjectType.acHatchObject;
hatch.PatternScale = 5;
hatch.AppendOuterLoop(hat);
hatch.AssociativeHatch = true;
hatch.color = ACAD_COLOR.acBlue;
hatch.Evaluate();
hatch.Update();
}
调用CreatHatch方法，想给CAD中画的圆填充上蓝色
object hat = AcadDoc.ModelSpace.AddCircle(startPoint, 50);
CreatHatch((int)HatchPatternType.PreDefined, "ANGLE", true, hat);
提示
System.Runtime.InteropServices.COMException:“参数 HatchObjectType (位于 AddHatch 中) 无效”

Answer 1

AcadHatch hatch = AcadDoc.ModelSpace.AddHatch((int)AcPatternType.acHatchPatternTypeUserDefined, "ANGLE", true, hat);
这个函数写法有问题啊，应该用传入的那个参数才对，改成：
AcadHatch hatch = AcadDoc.ModelSpace.AddHatch((int)patternType, "ANGLE", true, hat);
有帮助请采纳，谢谢！