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LEADTOOLS Raster imaging C++ Class library help

LAnnProtractor::SetPoints

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#include "ltwrappr.h"

virtual L_INT LAnnProtractor::SetPoints(pPoints, uCount=3)

pANNPOINT pPoints;

/* pointer to an array */

L_UINT uCount;

/* number of points in the array */

Defines the vertices of the protractor object.

Parameter

Description

pPoints

Pointer to the array of LEADTOOLS ANNPOINT structures that specifies the vertices of the annotation.

 

The ANNPOINT structure is like a Windows POINT structure, except that it uses double-precision floating-point values.

 

Coordinates of an object's points are relative to its container object. The coordinates are interpreted using the container's scaling factors and offsets, which are described in Low-Level Coordinate System for Annotations.

uCount

The number of points in the array that you specify in the pPoints parameter.

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

You call this function once, passing an array of points.

When setting the points of a protractor in the array, the vertices must be given in a specific order. The order of the vertices in the array is shown below:

image\ProPoint.gif

Required DLLs and Libraries

LTANN

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

See Also

Functions:

Class Members

Topics:

Annotation Functions: Getting and Setting Geometric Properties

 

Annotation Functions: Using Window Coordinates to Define an Object

 

Key Annotation Features

 

Calibrating Annotation Ruler Objects

Example

For an example, refer to LAnnProtractor::GetDistance.

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