Purpose
Add
an arrow to an existing plot.
Synopsis
procedure IVEdrawarrow(handle: integer, x1: real, y1: real, x2: real, y2: real)
Arguments
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handle
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The number returned by IVEaddplot.
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x1
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The x coordinate of the first point.
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y1
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The y coordinate of the first point.
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x2
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The x coordinate of the second point.
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y2
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The y coordinate of the second point.
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Example
The following adds two arrows to a plot named `thetime'. The arrows suggest three o'clock:
declarations
arrows: integer
end-declarations
arrows:=IVEaddplot("thetime", IVE_BLACK)
IVEdrawarrow(arrows, 0, 0, 0, 5)
IVEdrawarrow(arrows, 0, 0, 4.5, 0)
IVEzoom(-5, -6, 5, 6)
Further information
The arrow connects the two points whose coordinates are given as parameters, pointing to the second one.
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