| | | Scilab Reference Manual | |
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segs_properties — description of the Segments entity properties
The Segs entity is a leaf of the graphics entities hierarchy. This entity defines the parameters for a set of colored segments or colored arrows.
| visible: | This field contains the visible property value for the entity . It should be "on" or "off" . By default, the segments are visibles, the value's property is "on" . If "off" the segments are not drawn on the screen. | ||||||
| data: | This field is two column matrix [x,y] which gives the coordinates of the segments boundary. If xv=matrix(x,2,-1) and yv=matrix(y,2,-1) then xv(:,k) and yv(:,k) are the boundary coordinates of the segment numbered k. | ||||||
| line_style: | The line_style property value should be an integer in [0 9]. 0 stands for solid the other value stands for a selection of dashes. This property applies to all segments. | ||||||
| thickness: | This field contains the thickness property for all segments. Its value should be a non negative integer.. | ||||||
| arrow_size: | If the value of this property is 0, segments are drawn, else arrows are drawn and the size of the arrows is given by the absolute value of this property. | ||||||
| segs_color: | This field contains the vector of colors to use to draw each segment. Each element is a color index relative to the current colormap. | ||||||
| clip_state: | This field contains the clip_state property value for the segments. It should be :
| ||||||
| clip_box: | This field contains the clip_box property. By default segment are not clipped, clip_state is "off", so the value should be an empty matrix .Other cases the vector [x,y,w,h] (upper-left point width height) defines the portions of the segments to display, however clip_state property value will be changed. | ||||||
| parent: | This property contains the handle of the parent. The parent of the segment entity should be of the type "Axes" or "Agregation". |
set("figure_style","new") //create a figure
a=get("current_axes");//get the handle of the newly created axes
a.data_bounds=[-10,-10,10,10];
x=2*%pi*(0:7)/8;
xv=[2*sin(x);9*sin(x)];
yv=[2*cos(x);9*cos(x)];
xsegs(xv,yv,1:8)
s=a.children
s.arrow_size=1;
s.segs_color=15:22;
for j=1:2
for i=1:8
h=s.data(i*2,j);
s.data(i*2,j)=s.data(i*2-1,j);
s.data(i*2-1,j)= h;
end
end
s.segs_color=5; //set all the colors to 5
s.clip_box=[-4,4,8,8];
a.thickness=4;
xrect(s.clip_box);
Djalel ABDMOUCHE
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