imaqGetPolygonArea
Usage
int imaqGetPolygonArea(const PointFloat* points, int numPoints, float* area);
Purpose
Computes the area of a polygon described by the coordinates of its vertices.
Parameters
|
Name
|
Type
|
Description
|
|---|---|---|
| points | const PointFloat* | The array of points that describe the coordinate locations of the vertices of the polygon. |
| numPoints | int | The number of points in the supplied array. You must supply at least three points. |
| area | float* | On return, the area of the polygon. This parameter is required and cannot be NULL. |
Return Value
| Type |
Description |
|---|---|
| int | On success, this function returns a non-zero value. On failure, this function returns 0. To get extended error information, call imaqGetLastError(). |