Initializing help system before first use

svgaddarrow

svgaddarrow


Purpose
Add an arrow to an object group.
Synopsis
procedure svgaddarrow(gid: string, x1: real, y1: real, x2: real, y2: real)
procedure svgaddarrow(x1: real, y1: real, x2: real, y2: real)
Arguments
gid 
Object group ID.
x1 
The x coordinate of the first point.
y1 
The y coordinate of the first point.
x2 
The x coordinate of the second point.
y2 
The y coordinate of the second point.
Example
The following adds two arrows to a group named `thetime'. The arrows suggest three o'clock:
svgaddgroup("arrows", "thetime", SVG_BLACK)
svgaddarrow("arrows", 0, 0, 0, 5)
svgaddarrow(0, 0, 4.5, 0)
svgsetgraphviewbox(-5, -6, 10, 12)
Further information
1. The arrow connects the two points whose coordinates are given as parameters, pointing to the second one.
2. If no group ID is specified, the arrow is added to the last group that has been created.