GDRAWL Call

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Language Reference

GDRAWL Call

draws individual lines

CALL GDRAWL( xy1, xy2<, style><, color><, window><, viewport>);

The inputs to the GDRAWL subroutine are as follows:

xy1

is a matrix of points used to draw a sequence of lines.

xy2

is a matrix of points used to draw a sequence of lines.

style

is a numeric matrix or literal that specifies an index corresponding to a valid line style.

color

is a valid SAS color, where color can be specified as a quoted text string (such as 'RED'), the name of a character matrix containing a valid color as an element, or a color number (such as 1). A color number n refers to the nth color in the color list.

window

is a numeric matrix or literal specifying a window. This is given in world coordinates and has the form

{minimum-x minimum-y maximum-x maximum-y}

viewport

is a numeric matrix or literal specifying a viewport. This is given in normalized coordinates and has the form

{minimum-x minimum-y maximum-x maximum-y}

The GDRAWL subroutine draws a sequence of lines specified by their beginning and ending points. The matrices xy1 and xy2 must have the same number of rows and columns. The first two columns (other columns are ignored) of xy1 give the x,y coordinates of the beginning points of the line segment, and the first two columns of xy2 have x,y coordinates of the corresponding end points. If xy1 and xy2 have n rows, n lines are drawn. The first line is from (xy1(1,1),xy1(1,2)) to (xy2(1,1),xy2(1,2)). The lines are drawn in the same color and line style. The coordinates in use for this graphics command are world coordinates. An example using the GDRAWL call follows:

      /* line from (25,25) to (50,50) - x and y take */
      /* default window range of 0 to 100    */
   call gdrawl({25 25},{50 50});
   call gshow;

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