Question

自定义专题图Theme3DCustom如何设置在地下，并且地表透明可以看得见？

Answer 1

直接设置AltitudeModeExpression属性为2是可以实现地下效果，但是地表透明看不见，可以通过以下方式设置：

Layer3D layer3DOK = sceneControl.Scene.Layers[0];

Layer3DDataset sd = layer3DOK as Layer3DDataset;

Layer3DSettingVector Sytle = sd.AdditionalSetting as Layer3DSettingVector;

GeoStyle3D geoStyle3D = Sytle.Style;

geoStyle3D.AltitudeMode = AltitudeMode.AbsoluteUnderGround;

Sytle.Style = geoStyle3D;

layer3DOK.UpdateData();