Previously used this function to draw a straight line, and now look at the definition of this function:
Where the parameters are defined:
img image to draw a straight line;
Pt1 line start point coordinates (x, y);
Pt2 line end coordinates (x, y);
Color color line, (B, G, R);
Fine line thickness;
lineType Line Generation Algorithm;
linear shift bits fixed point coordinates;
This function is relatively simple, first look at the results of the demo code:
