Contour   |  
 Add a set of contours as a contour setting item to the current contour setting. 
 Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
public ContourSettingItem AddContourRange(
	double start,
	double stop,
	double step,
	ElementId subcategoryId
) Parameters
- start Double
 - The contour range start elevation.
 - stop Double
 - The contour range stop elevation. Should be greater than start elevation.
 - step Double
 - The increment elevation of the contour range. Should be greater than zero.
 - subcategoryId ElementId
 - The contour line style subcategory id.
 
Return Value
ContourSettingItemThe newly added contour setting item.
| Exception | Condition | 
|---|---|
| ArgumentException | The given value for start is not finite -or- The given value for stop is not finite -or- The given value for step is not finite -or- The input subcategory id is not valid. | 
| ArgumentNullException | A non-optional argument was null | 
| InvalidOperationException | The input contour spacing information is not valid. |