Hello everybody I have a question . I have a cuboid shape, I want to calculate all the points within this figure as x,y values and save to workspace>

Hello everybody

I have a question . I have a cuboid shape, I want to calculate all the points within this figure as x,y values and save to workspace>

Answer 1

[VINAYAK LUHA]

Hi Wisam ,

As per my understanding of your problem , you wish to store all interior integer coordinates in the cuboid,in this case each point will be a tuple of 3 elements, (x,y,z) .

Let (x1,y1,z1) and (x2,y2,z2) be the endpoints of body digonal of the cuboid,then interior points can be calculated as follows.

let,

x1=5;x2=8; y1=4;y2=6;z1=0;z2=2;
xmin=min(x1,x2);
xmax=max(x1,x2);

ymin=min(y1,y2);
ymax=max(y1,y2);

zmin=min(z1,z2);
zmax=max(z1,z2);

points=[[]];
for x=xmin:xmax
    for y=ymin:ymax
        for z=zmin:zmax
            points=[points;[x,y,z]];
        end
    end
end

disp(points)

     5     4     0
     5     4     1
     5     4     2
     5     5     0
     5     5     1
     5     5     2
     5     6     0
     5     6     1
     5     6     2
     6     4     0
     6     4     1
     6     4     2
     6     5     0
     6     5     1
     6     5     2
     6     6     0
     6     6     1
     6     6     2
     7     4     0
     7     4     1
     7     4     2
     7     5     0
     7     5     1
     7     5     2
     7     6     0
     7     6     1
     7     6     2
     8     4     0
     8     4     1
     8     4     2
     8     5     0
     8     5     1
     8     5     2
     8     6     0
     8     6     1
     8     6     2

scatter3(points(:,1),points(:,2),points(:,3),'o')

Hope this helps.

[Wisam Mohammed]

i have this code to generate the shape below , then I NEED all the possible point inside the shape. as x, y

pgon = polyshape([2.23 0.1404 8.258 10.37],[14.95 0.9339 1.579 15.61 ]);

plot(pgon)
grid on

Answer 2

[Matt J]

tf = inpolygon(xq,yq,[2.23 0.1404 8.258 10.37],[14.95 0.9339 1.579 15.61 ]);

x=xq(tf);
y=yq(tf);