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xfpolys(2) Scilab Function xfpolys(2)
NAME
xfpolys - fill a set of polygons of the same size
CALLING SEQUENCE
[]=xfpolys(xpols,ypols,[fill])
PARAMETERS
xpols,ypols
: two matrices of size (n1,n2) (polygon def)
fill : vector of size n2 (number of polygons) (pattern id's).
DESCRIPTION
fills a set of polygons of the same size defined by the two matrices
xpols,ypols . xpols= [ xpol1;xpol2;...]', each column of the matrix xpols
gives the x-values of the points of a polygon (i.e ypols).
fill(i) gives the id of the pattern for filling the polygon number i
- if fill(i) < 0, the polygon is filled with pattern -fill(i).
- if fill(i) == 0, the polyline is only drawn with the current dash
style ( or current color ).
- if fill(i) > 0, the polygon is filled with the pattern fill(i). Then
its contour is drawn with the current dash (or color) and closed if
necessary.
EXAMPLE
plot2d(0,0,[-1],"012"," ",[0,-10,210,40]);
x1=[0,10,20,30,20,10,0];
y1=[15,30,30,15,0,0,15];
xpols=[x1;x1;x1;x1]';xpols=xpols + [0,60,120,180].*.ones(x1)';
ypols=[y1;y1;y1;y1]';
lpat=xget("lastpattern");
// setting the current dash (or line color)
xset("dashes",5);
xfpolys(xpols,ypols,[-1,0,1,2]);
xset("default");
AUTHOR
J.Ph.C.
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