CurveTension property (Main Control)

Builder Syntax	double CurveTension;
Delphi Syntax	CurveTension: L_DOUBLE;
Overview	Refer to Creating and Using a Bitmap Region

Remarks

Indicates the "straightness" of the curves that connect points.

This property is used only when CurveType property is CURVE_STANDARD. Valid values are between 0.0 and 1.0, where 0.0 indicates straight lines, and 1.0 indicates lines with the highest curvature. A typical value is 0.5.
$image\Tension.gif$

To create a curve region, first build an ordered array of points for the curve. Then create the region based on the array. The CurveSize property specifies the size of the array. Either specify a large array to start with, or increase the size of the array as needed, without losing existing points. For each point, update the following indexed properties:

$image\sqrblit.gif$ CurveX property

$image\sqrblit.gif$ CurveY property

and define the characteristics of the curve by setting the following properties:

$image\sqrblit.gif$ CurveType property

$image\sqrblit.gif$ CurveTension property

$image\sqrblit.gif$ CurveClose property

Then call the SetRgnCurve method to add the region to the bitmap.

Elements:	CurveX property, CurveY property, SetRgnCurve method, CurveSize property, CurveToBezier method, CurveType property, CurveClose property
Topics:	Raster Images: Creating and Using a Region