4D Doc Center : CT GET AREA BOUNDARY

4D Chart v13

CT GET AREA BOUNDARY


CT GET AREA BOUNDARY ( area ; boundaryCode ; left ; top ; right ; bottom )

Parameter	Type	Description
area	Longint	4D Chart area
boundaryCode	Integer	Boundary code 0 = Document boundary 1 = Clipped boundary
left	Real	Receives left boundary of area
top	Real	Receives top boundary of area
right	Real	Receives right boundary of area
bottom	Real	Receives bottom boundary of area

Description

The CT GET AREA BOUNDARY command returns into the left, top, right, and bottom variables the coordinates of the area rectangle.

If boundaryCode is 0, CT GET AREA BOUNDARY returns the boundary for the whole document.
If boundaryCode is 1, CT GET AREA BOUNDARY returns the boundary for the 4D Chart area on a form or for the current size of the 4D Chart plug-in window

Example

This example creates a geometric object composed of several lines in an existing chart area, gets the area’s boundary coordinates, and centers the object in the area.

 For($i;0;360;5)

    vLine:=CT Draw line(Area;50*Cos($i);50*Sin($i);0;0;0)

 End for

 CT GET AREA BOUNDARY(Area;1;$left;$top;$right;$bottom)

 CT MOVE(Area;-1;(($right-$left)/2)-50;(($bottom-$top)/2)-50)