grayplot_properties

grayplot_properties

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