- Manuel Scilab
- Bibliothèque graphique
Please note that the recommended version of Scilab is 2023.1.0. This page might be outdated.
See the recommended documentation of this function
description of the grayplot entities properties
The Grayplot entity is a leaf of the graphics entities hierarchy. It
represents 2D plots of surface using colors and images (see
This property contains the handle of the parent. The parent of the grayplot entity should be of the type
This property contains a vector with the
childrenof the handle. However,
grayplothandles currently do not have any
This field contains the
visibleproperty value for the entity . It should be
"off". By default, the plot is visible, the value's property is
"off"the plot is not drawn on the screen.
This field defines a
tlistdata structure of type
"grayplotdata"composed of a row and column indices of each element : the x and y grid coordinates are contained respectively in
data.y. The complementary field named
data.zis the value of the surface at the point
(x(i),y(j))(scaled mode) or the centered value of the surface defined between two consecutive
y(j)(direct mode). If
data_mapping(see below) is set to
"scaled", the entire z data is used to perform a color interpolation whereas, if
data_mapping's value is
"direct", the last line and column of the z data indices are ignored and the color is determined directly in the colormap by the indices of the submatrix
By default the value of this property is
"scaled": the indices of painting colors are proportional to the value
zcoordinates. In the other case, the property takes as value
"direct"where the plot is a grayplot and the indices of painting colors are given by the data (see above).
This field contains the
clip_stateproperty value for the grayplot. It should be :
"off"this means that the grayplot is not clipped.
"clipgrf"this means that the grayplot is clipped outside the Axes box.
"on"this means that the grayplot is clipped outside the rectangle given by property clip_box.
This field is to determinate the
clip_boxproperty. By Default its value should be an empty matrix if clip_state is "off". Other cases the vector
[x,y,w,h](upper-left point width height) defines the portions of the grayplot to display, however
clip_stateproperty value will be changed.
This field can be use to store any scilab variable in the grayplot data structure, and to retreive it.
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 clf() 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
Djalel ABDEMOUCHE & F.Leray
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