Scilab Data type

fec_properties - description of the fec entities properties

### Description

The Fec entity is a leaf of the graphics entities hierarchy. It represents 2D finite elements plots (see `fec`, `Sgrayplot`).
- 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 three column matrix `[x,y,f]`, where `x(i)` and `y(i)` are the coordinates of the `i`'th node. `f(i)` is the value associated to the node `i`.
- triangles: This is a five column matrix `[tn,n1,n2,n3,flag]`. `tn(j)` is the triangle number. `n1(j)`, `n2(j)` and `n3(j)` are the index of the nodes which constitute the triangle. (`flag(j)` is not used).
- parent: This property contains the handle of the parent. The parent of the fec entity should be of the type `"Axes"` or `"Agregation"`.

### Examples

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

       x=-10:10; y=-10:10;m =rand(21,21);
       Sgrayplot(x,y,m);
       a=get("current_axes");
       f=a.children.children(2)
       f.data(:,3)=(1:size(f.data,1))';
       a.parent.color_map=hotcolormap(64);

### See Also

`set` `get` `delete` `fec` `Sgrayplot` `graphics_entities`

### Author

Djalel ABDEMOUCHE