Display barrier outlines on bird's-eye plot
displays the rectangular outlines of barriers on a bird's-eye plot. Specify the barrier, as
well as the position, yaw angle of rotation, length, and width of each barrier segment. The
olPlotter, is associated with a
birdsEyePlot object, and configures the display of the specified
To remove all outlines associated with the outline plotter
olPlotter, use the
function and specify
olPlotter as the input argument.
To display the outlines of the barriers that are in a driving scenario, first use
'Barriers' flag as input, to get the dimensions of the barriers.
Then, use the
plotBarrierOutline function to display the outlines of
all the barriers in a bird's-eye plot.
specifies options using one or more
Name,Value pair arguments and the
input arguments from the previous syntax.
Create a driving scenario. Create a 25 m road segment with a barrier on its left edge. Add a pedestrian that crosses the road at 1 m/s, and a vehicle that drives along the road at 10 m/s.
scenario = drivingScenario; r = road(scenario,[0 0 0; 25 0 0]); barrier(scenario,r,'RoadEdge','left') p = actor(scenario,'ClassID',4,'Length',0.2,'Width',0.4,'Height',1.7); v = vehicle(scenario,'ClassID',1); smoothTrajectory(p,[15 -3 0; 15 3 0],1) smoothTrajectory(v,[v.RearOverhang 0 0; 25-v.Length+v.RearOverhang 0 0],10)
Use a chase plot to display the scenario from the perspective of the vehicle.
Create a bird's-eye plot, outline plotter, and lane boundary plotter.
bep = birdsEyePlot('XLim',[-25 25],'YLim',[-10 10]); olPlotter = outlinePlotter(bep); lbPlotter = laneBoundaryPlotter(bep); legend('off')
Run the simulation loop. Update the plotter with outlines for the targets.
while advance(scenario) % Obtain the road boundaries and rectangular outlines. rb = roadBoundaries(v); [position,yaw,length,width,originOffset,color] = targetOutlines(v); [bposition,byaw,blength,bwidth,boriginOffset,bcolor,numBarrierSegments] = targetOutlines(v,'Barriers'); % Update the bird's-eye plotters with the road, actors and barriers. plotLaneBoundary(lbPlotter,rb); plotOutline(olPlotter,position,yaw,length,width, ... 'OriginOffset',originOffset,'Color',color); plotBarrierOutline(olPlotter,numBarrierSegments,bposition,byaw,blength,bwidth, ... 'OriginOffset',boriginOffset,'Color',bcolor); % Allow time for plot to update. pause(0.01) end
olPlotter— Outline plotter
barrierSegments— Number of barrier segments in each barrier
Number of barrier segments in each barrier, specified as a nonnegative real-valued M-by-1 vector. M is the number of barriers in the scenario.
positions— Positions of all barrier segments in the detected barriers
Positions of all the barrier segments in the detected barriers, specified as an M-by-2 real-valued matrix of (X,Y) positions. M is the number of barrier segments in the detected barriers.
yaw— Angles of rotation
Angles of rotation for barrier outlines, specified as an M-element real-valued vector, where M is the number of barrier segments in the detected barriers.
length— Lengths of barrier outlines
Lengths of barrier outlines, specified as an M-element real-valued vector, where M is the number of barrier segments in the detected barriers.
width— Widths of barrier outlines
Widths of barrier outlines, specified as an M-element real-valued vector, where M is the number of barrier segments in the detected barriers.
comma-separated pairs of
the argument name and
Value is the corresponding value.
Name must appear inside quotes. You can specify several name and value
pair arguments in any order as
[1 0 0]changes the color of a barrier outline to red.
'OriginOffset'— Rotational centers of rectangles relative to origin
Rotational centers of the rectangles relative to origin, specified as the
comma-separated pair consisting of
'OriginOffset' and an
M-by-2 real-valued matrix. M is the number of
barrier segments in the detected barriers. Each row specifies the rotational center of
the rectangle representing the barrier segment outline as an
(X,Y) displacement from the geometric center
of that rectangle.
'Color'— Outline color
Outline color, specified as the comma-separated pair consisting of
'Color' and an M-by-3 matrix of RGB
triplets. M is the number of barrier segments in the detected
barriers. If you do not specify this argument, the function uses the default colormap
for each object.
[0 0.5 0.75; 0.8 0.3