plot::vector -- graphical object
for vectors
Introductionplot::vector(p1, p2) returns a polygon
consisting of three lines. Theses lines are connecting the points
p1 with p2 and the endpoints of the arrow with
the point p2.
Call(s)plot::vector(p1, p2, angle, l <, option1,
option2...>)
Parametersp1, p2 |
- | points with real valued coordinates, i.e., objects of
the domain type plot::Point or lists of two or three
real numerical values, respectively |
angle, l |
- | real numerical values |
option1, option2, ... |
- | plot option(s) of the form option =
value |
Returnsa graphical object of the domain type plot::Polygon.
Related
Functionsplot, plot2d, plot3d, plot::Polygon
Detailsangle specifies the angle (in radian measure) between
the line and the arrow.l specifies the length of the arrow.plot
to display the result on the screen.option1, option2... must
be valid plot options for two- or three-dimensional graphical objects,
respectively. See plot2d and plot3d for details.
Note that scene options are not allowed! You may
give scene options as optional arguments for the function plot, or use plot::Scene to create an object
representing a graphical scene.
Example
1We define a vector starting at (1;2) and ending at (3;-1):
>> v := plot::vector([1, 2], [3, -1], 0.2, 0.1)
plot::Polygon()
The lenght of the arrow is 0.1, and the angle between the line and the arrow is 0.2 (in radian measure).
To plot this vector, call plot:
>> plot(v)
To change the color of the vector from the previous example, enter:
>> v::Color := RGB::Blue: plot(v, Axes = None)
Here the scene option Axes = None was
given.