TIEVisionVectorKeyPoint.getKeyPoint
Declaration
function getKeyPoint(pos: int32_t): TIEVisionKeyPoint; safecall;
Description
Returns the keypoint at specified index.
| Parameter | Description |
| pos | KeyPoint index |
Example
// Draw points onto image
var
i: Integer;
kp: TIEVisionKeyPoint;
x1, y1, x2, y2: double;
begin
for i := 0 to keyPoints.size() - 1 do
begin
kp := keyPoints.getKeyPoint(i);
// Draw onto bitmap
with ImageEnView1.IEBitmap.Canvas do
begin
Pen.Color := clRed;
Pen.Width := 4;
Brush.Style := bsClear;
x1 := kp.pt.x - kp.size / 2;
y1 := kp.pt.y - kp.size / 2;
x2 := kp.pt.x + kp.size / 2;
y2 := kp.pt.y + kp.size / 2;
Ellipse( Round(x1), Round(y1), Round(x2), Round(y2));
end;
end;
ImageEnView1.Proc.TextOut( Align_Text_Near_Left, Align_Text_Near_Top, Format( 'Found: %d', [ lines.size ]), 'Arial', 12, clYellow, [fsBold] );
ImageEnView1.Update();
end;