Interpolates elevation values along a non-aggregated linear feature from a starting value to an ending value.产生的特征的高度将单调地从起始值增加（或减少）到终值。
Input Ports
Input
This transformer accepts any feature. Only linear features will be affected.
弧的高度在其定义的终点上插值，并且可能是中点（如果电弧是弧度的3点）。
If the feature was two-dimensional, it becomes three-dimensional.
If the feature was three-dimensional, its previous elevations are removed and replaced.
输出端口
输出
这features with interpolated elevation values.
参数
您可以通过从下拉列表中选择属性名称来输入作为数字的参数，或从要素属性的值中选择它们。
起步海拔
输入特征的第一个顶点的高度值。
Ending Elevation
输入功能的最后一个顶点的高度值。
Usage Notes
这SurfaceDraper变压器（可在FME专业版及更高版本中提供）可用于根据二维特征的顶点提供基于3D网格或一组3D功能的插值高程值。
FME许可级别
FME专业版及以上
Editing Transformer Parameters
使用一组菜单选项,变压器参数s can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click
除适用的参数旁边。有关更多信息，请参阅Transformer Parameter Menu Options。
Transformer Categories
FME知识中心搜索:
烤焦的ch for samples and information about this transformer on theFME知识中心。