GetGeomAngleFromLength Method

Description

Gets the tangent angle at a specified length along the geometry of the current open Item.

Syntax

Public Function GetGeomAngleFromLength( _
   ByVal nGeom As Integer, _
   ByVal arclen As Double _
) As Double

Parameters

nGeom

The index of the geometry component, starting at 0.

arclen

The length along the geometry component.

Return Type

The angle, in radians, of the geometry component at the length along the geometry component, measured anti-clockwise from the current x-axis.

Remarks

Use GetNumGeom to get the number of geometry components in an Item.

Items such as blocks, groups, MultiLineStrings, and so on, can be made up of multiple geometry. Therefore the value of nGeom can be greater than 0. Items such as LineString items, polygons, symbols, and so on, are made by a single piece of geometry. Therefore the value would be 0.

This method should only be used if the geometry component is two dimensional. If the geometry component is three dimensional then consider using GetGeomTgtFromLength.

Available: GEO MM ME MD OD OM SISpy

Group:

• Querying Methods

Example

sis.GetGeomAngleFromLength (0, 120)

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