drawChord
drawChord(x1: Integer; y1: Integer; x2: Integer; y2: Integer; startX: Integer; startY: Integer; endX: Integer; endY: Integer; color: Integer);
The drawChord method of the Printer class draws an elliptical arc on the printer page, by using a colored pen the width of the drawWidth property and the style of the drawStyle property.
A line is drawn through the end points of the arc and the figure is filled by using the color and style of the drawFillColor and drawFillStyle properties of the object.
An exception is raised if this method is invoked from a server method.
The drawChord method parameters are listed in the following table.
Parameter | Description |
---|---|
x1, y1, x2, y2 | Rectangle bounding the ellipse of which the arc is a part |
startX, startY | Logical x and y (horizontal and vertical) coordinate of the point that defines the starting point of the chord |
endX, endY | Logical x and y coordinate of the point that defines the end point of the chord |
color | Color of the pen used |
All of the positional values are relative to the left and top margins, and need not lie within the page. The startX, startY, endX, and endY parameter points do not need to lie exactly on the chord. The width and height of a rectangle must each be in the range 2 units through 32,767 units.
The starting point of the chord is the point at which a ray drawn from the center of the bounding rectangle through the specified starting point intersects the ellipse. The end point of the chord is the point at which a ray drawn from the center of the bounding rectangle through the specified end point intersects the ellipse.
This method causes the header frame to be printed if the method is called at the start of a new page. The method has no subsequent affect on the current print position.
For details about placing output directly on a printer page at any location without the use of frames and drawing rotated text and characters, see "Free-Format Printing", later in this chapter.