datatipSetDisplay

Arguments

tip_handle

A handle on a datatip.

fun

A variable that contains a function (type==11 or type==13). This function calling sequence must be str=fun(curve, pt, index) where curve is the handle of the polyline associated with the datatip, pt is the vector of datatip coordinates and index is the mesh point index of the datatip point or the index of the previous mesh point if interpolation is allowed.

This function must return a string or a vector of strings in str.

Description

Set the function used to format the text to be displayed at the datatip point.

Examples

x=linspace(-1,1,1000);
clf()
plot(x,sinc(20*x),x,1-x^2);
e=gce();e=e.children;
d21=datatipCreate(e(2),600);
d22=datatipCreate(e(2),200);
d1=datatipCreate(e(1),700);

function str=mydisplay(curve, pt, index)
   str=msprintf('sinc(%-0.2g)=%-0.2g', 20*pt(1),pt(2))
endfunction
datatipSetDisplay(e(2),mydisplay)

function str=infodisplay(curve, pt, index)
   xinfo(msprintf('x=%0.2g,\t 1-x^2=%0.2g', pt(1),pt(2)))
   str=''
endfunction
datatipSetDisplay(e(1),infodisplay) //tip text displayed in the info bar

See Also

• datatips — Tool for placing and editing tips along the plotted curves.
• datatipSetOrientation — Set the position of the text box associated with the given tip.