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START ​

Specifies to draw all further commands at the start of a relation. Only used for relations.

Syntax ​

leo-grammar
START .

Parameters ​

none

Details ​

The START command specifies to draw all following commands for the graphical representation at the start point of a relation. In this case the (0cm, 0cm) coordinate takes the place of the start of the relation, close to the object the relation is originating from.

For START the coordinate system is mirrored diagonally. This means that values for the x-axis go from right (negative) to left (positive) and for the y-axis from bottom (negative) to top (positive).

See Also ​

Examples ​

Draw a connector with an arrow at the start.
A connector with an arrow at the start

leo
GRAPHREP
SHADOW off

PEN color:"black"
EDGE

START
# Note: the coordinate system is mirrored at the start.
POLYLINE 3 x1:-0.5cm y1:0.2cm x2:0cm y2:0cm x3:-0.5cm y3:-0.2cm

Draw a connector with a thicker lightblue line and which starts with a wavy line and ends with an arrow-head after a short gap. Draw a movable rectangle at the middle point.
Lightblue edge with arrow-head

leo
GRAPHREP start-trans:-0.3cm end-trans:-0.5cm
# Note: SHADOW is on by default.

# Draw the basic edge line.
PEN color:"lightblue" w:0.08cm
EDGE

# Draw the wavy line at the start.
START
POLYLINE 4
    x1:0cm y1:0cm
    x2:-0.1cm y2:0.18cm
    x3:-0.2cm y3:-0.18cm
    x4:-0.3cm y4:0cm

# Draw the arrow-head at the end.
END
POLYLINE 3
    x1:-0.4cm y1:0.15cm
    x2:0cm y2:0cm
    x3:-0.4cm y3:-0.15cm

# Draw the rectangle at the middle.
MIDDLE
FILL color:"lightblue"
RECTANGLE y:-0.3cm w:0.3cm h:0.6cm

Versions and Changes ​

Available since ADOxx 1.3