PAINTS A SURFACE FROM A POINT
ACTION
The command 2D_FLOOD X,Y,R,G,B fills a surface from the point (X,Y), replacing the color found at point (X,Y) by the color (R,G,B).
The filling is determined by moving outward from the point (X,Y): if the color found at the point (X,Y) is encountered, it is replaced by the color (R,G,B) but when another color is encountered, the flood stops.
Remark 1: the filling mode must be the solid one (2D_FILL_SOLID).
Remark 2: the filling color is the color resulting of the addition of the 3 specified primary components: red (R), green (G) and blue (B).
The intensity of each primary component can vary from 0 to 255. (0 = no color, 255 = full intensity)
When all the 3 primary components are 0, the result color is black (no color), when all the 3 primary components are 255, the result color is white (addition of the 3 primary colors at maximum intensity).
Recall:
- yellow color (red + green) when B = 0
- gray color when R=G=B
- violet color (red + blue) when G = 0
- black color when R=0, G=0, B=0
- white color when R=255, G=255, B=255
SYNTAX:
2D_FLOOD X,Y,R,G,B
USE ERROR EXAMPLE
dim x0,y0,r,Px,Py,Px2,Py2,j%,n%,Pi,a
x0=100:Y0=100:rem center coordinates
r=100:rem radius
n%=10:rem side number
a=10:rem starting angle
Pi = 3.1415926535898
Px = r * Cos(a) + x0
Py = r * Sin(a) + y0
2D_poly_from Px,Py
For j% = 1 To n%
Px2 = r*Cos(a + 2*Pi*j%/n%) + x0
Py2 = r*Sin(a + 2*Pi*j%/n%) + y0
2D_poly_to Px2, Py2
Px = Px2
Py = Py2
next j%
2d_flood x0,y0,100,50,200
2D_FLOOD
2D_FLOOD X,Y,R,G,B
SEE ALSO
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