Question

填充在MxDrawCAD控件下为一个实体类：

class ARXDLL McDbHatch : public McDbEntity

通过调用调用默认构造函数进行实例化：

McDbHatch * pHatch = new McDbHatch;

我们对其进行设置：

	McDbHatch * pHatch = new McDbHatch;
	auto mLayerID = CreateLayer(pHatch);

	if (pHatch)
	{
		pHatch->setHatchStyle(McDbHatch::kNormal);
		pHatch->setHatchObjectType(McDbHatch::kHatchObject);
		pHatch->setPatternScale(1.0);
		pHatch->setPattern(McDbHatch::kPreDefined, L"SOLID");
		pHatch->setColorIndex(MrxDbgUtils::kBylayer);
		pHatch->setLayer(mLayerID);

		McGePoint2dArray vertices;
		McGeDoubleArray bulges;

		vertices.append(McGePoint2d(0, 0));
		bulges.append(0);
		vertices.append(McGePoint2d(10, 0));
		bulges.append(0);
		vertices.append(McGePoint2d(10, 10));
		bulges.append(0);
		vertices.append(McGePoint2d(0, 10));
		bulges.append(0);

		pHatch->appendLoop(McDbHatch::kPolyline, vertices, bulges);

		AddToSpaceAndPutToView(pHatch);
	}

在上述代码中，我们对其设置了setPattern，其中的的二个参数我们设置为L”SOLID”，这是因为我们需要使用该类型图案，样式如下：

我们还设置了边界数组与边界凸度，边界数组即为填充的边界坐标，而凸度我们设置成了0，凸度的含义如下图所示：