Man Scilab

grayplot_properties - description of the grayplot entities properties

Description

The Grayplot entity is a leaf of the graphics entities hierarchy. It represents 2D plots of surface using colors and images (see Xgrayplot , Matplot and Matplot1 ).

visible: This field contains the visible property value for the entity . It should be "on" or "off" . By default, the plot is visible, the value's property is "on" . If "off" the plot is not drawn on the screen.

data: This is a matrix (n1,n2) which constitue the coordinates of a 2D plots of surface.

data_mapping: By default the value of this property "scaled" , the indices of painting colors are proportional to the value z coordinates. In another case the property take as value "direct" where the plot is a grayplot and the indices of painting colors are given by the data.

parent: This property contains the handle of the parent. The parent of the grayplot (Matplot) entity should be of the type "Axes" .

Examples

   set("figure_style","new") //create a figure


   m=5;n=5;
   M=round(32*rand(m,n));
   grayplot(1:m,1:n,M)

   a=get("current_axes");
   a.data_bounds=  [-1,-1;7,7]
   h=a.children

   h.data_mapping="direct";
   
   // A 2D ploting of a matrix using colors 
   xbasc()
   a=get("current_axes");
   a.data_bounds=  [0,0;4,4];
  
   b=5*ones(11,11); b(2:10,2:10)=4; b(5:7,5:7)=2;
   Matplot1(b,[1,1,3,3])  ;
  
   h=a.children
   for i=1:7
    xclick(); // click the mouse to sets Matplot data
    h.data=h.data+4;
   end
   

 
  

See Also

set ,   get ,   delete ,   grayplot ,   Matplot ,   Matplot1 ,   graphics_entities ,  

Author

Djalel ABDEMOUCHE

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