Info

此问题已关闭。 请重新打开它进行编辑或回答。

Create 100 random particles(all the same size) in an empty plot with dimensions (x-axis from -16 to 16) and (y-axis from -16 to 16) and (angle from 0 to 2*pi)

1 次查看（过去 30 天）
GHADAH AL-OBAIDI
GHADAH AL-OBAIDI 2021-4-26
关闭： GHADAH AL-OBAIDI 2021-4-29
此 个问题 已被 Paul Hoffrichter 标记
显示标记
Ran in:
Create 100 random particles(all the same size) distributed uniformly in an empty plot with dimensions (x-axis from -16 to 16) and (y-axis from -16 to 16) and (angle from 0 to 2*pi). I must avoid the furniture or the obstacles in my map so my map function as below:
xw=-16; xe=16; ys=-16; yn=16; %map dimensions, west, east, south, north
mrx=0.05; mry=0.05; % map resolution {x,y}
[xm ym]=meshgrid(xw:mrx:xe,ys:mry:yn);
m=0*xm.*ym; % initialize the map m
for i=1:size(xm,2)
for j=1:size(ym,1)
r=sqrt(xm(1,i)^2+ym(j,1)^2);
ang=atan2(ym(j,1),xm(1,i))+pi;
if 9<=r && r<=10 && (pi/15<=ang && ang<=29*pi/15)
m(j,i)=1;
elseif 6<=r && r<=7 && ~(pi-pi/6<=ang && ang<=pi+pi/6)
m(j,i)=1;
elseif -14<=xm(1,i) && xm(1,i)<-9 && -2.8<=ym(j,1) && ym(j,1)<=-1.8
m(j,i)=1;
elseif -11<=xm(1,i) && xm(1,i)<-9 && 1.8<=ym(j,1) && ym(j,1)<=2.8
m(j,i)=1;
elseif -14<=xm(1,i) && xm(1,i)<-13 && -2.8<=ym(j,1) && ym(j,1)<=14
m(j,i)=1;
elseif -11<=xm(1,i) && xm(1,i)<-10 && 2.8<=ym(j,1) && ym(j,1)<=11
m(j,i)=1;
elseif -14<=xm(1,i) && xm(1,i)<14 && 14<=ym(j,1) && ym(j,1)<=15
m(j,i)=1;
elseif -11<=xm(1,i) && xm(1,i)<11 && 11<=ym(j,1) && ym(j,1)<=12
m(j,i)=1;
elseif 14<=xm(1,i) && xm(1,i)<15 && -15<=ym(j,1) && ym(j,1)<=15
m(j,i)=1;
elseif -5<=xm(1,i) && xm(1,i)<14 && -15<=ym(j,1) && ym(j,1)<=-14
m(j,i)=1;
elseif 10<=r && r<=16 && 0.95*pi/3.5<=ang && ang<=1.05*pi/3.5
m(j,i)=1;
elseif xm(1,i)<0.98*xw || 0.98*xe<xm(1,i) || ym(j,1)<0.98*ys || 0.98*yn<ym(j,1) % Boundaries
m(j,i)=1;
end
end
end
mesh(xm,ym,m); axis image; view(0, 90); %xlabel('x'); ylabel('y');
  11 个评论
显示 9更早的评论
Rik
Rik 2021-4-28
What issues are you having in implementing that? Do you have issues generating random numbers? Or detecting if the points are invalid?

请先登录，再回答此问题。

回答（0 个）

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by