Grid plotting in Python with coordinates and a map image












1















I'm fairly new to using python and I'm seeking help on a small project I'm working on.



So firstly I want to make a 10x10 grid out of coordinates and then add a loop function that can randomly pick a cell and somehow store the cell coordinates it has picked without selecting the same cell twice.



So far I have come up with this.



x = 1
y = 1

scale = 10

nn =

for x in range(1,scale+1):
mm =
for y in range(1,scale+1):
xy = [x,y]
mm.append(xy)
#print(xy)
y=+1
nn.append(mm)
x=+1

Out:[[[1, 1],
[1, 2],
[1, 3],
[1, 4],
[1, 5],
[1, 6],
etc


The next part is where I'm struggling.



import random
r = random.randint(1,10)
x = 1
y = r

xy = [x,y]
print(xy)
while x < 10:

# direction North=1, East=2, South=3
if y == 1:
dir = [random.randint(0,1),random.randint(0,1)]
elif y == 10:
dir = [random.randint(0,1),random.randint(-1,0)]
else:
dir = [random.randint(0,1),random.randint(-1,1)]

xy = [(a + b) for (a, b) in zip(xy, dir)]

x = xy[0]
y = xy[1]

if xy == [(a + b) for (a, b) in zip(xy, dir)]:
pass
else:
print(xy)


Eventually I would like to plot the coordinates onto a grid and then put a map image over the grid.



This is my first question so please excuse mistakes and code quotes.
Thanks in advance










share|improve this question


















  • 1





    I'm not completely following how each code block relates to each other. What I think you're looking for is a set. docs.python.org/3/tutorial/datastructures.html#sets . On each loop, check the set if the new value exists. if not, add it, else try again.

    – J'e
    Nov 22 '18 at 17:19


















1















I'm fairly new to using python and I'm seeking help on a small project I'm working on.



So firstly I want to make a 10x10 grid out of coordinates and then add a loop function that can randomly pick a cell and somehow store the cell coordinates it has picked without selecting the same cell twice.



So far I have come up with this.



x = 1
y = 1

scale = 10

nn =

for x in range(1,scale+1):
mm =
for y in range(1,scale+1):
xy = [x,y]
mm.append(xy)
#print(xy)
y=+1
nn.append(mm)
x=+1

Out:[[[1, 1],
[1, 2],
[1, 3],
[1, 4],
[1, 5],
[1, 6],
etc


The next part is where I'm struggling.



import random
r = random.randint(1,10)
x = 1
y = r

xy = [x,y]
print(xy)
while x < 10:

# direction North=1, East=2, South=3
if y == 1:
dir = [random.randint(0,1),random.randint(0,1)]
elif y == 10:
dir = [random.randint(0,1),random.randint(-1,0)]
else:
dir = [random.randint(0,1),random.randint(-1,1)]

xy = [(a + b) for (a, b) in zip(xy, dir)]

x = xy[0]
y = xy[1]

if xy == [(a + b) for (a, b) in zip(xy, dir)]:
pass
else:
print(xy)


Eventually I would like to plot the coordinates onto a grid and then put a map image over the grid.



This is my first question so please excuse mistakes and code quotes.
Thanks in advance










share|improve this question


















  • 1





    I'm not completely following how each code block relates to each other. What I think you're looking for is a set. docs.python.org/3/tutorial/datastructures.html#sets . On each loop, check the set if the new value exists. if not, add it, else try again.

    – J'e
    Nov 22 '18 at 17:19
















1












1








1








I'm fairly new to using python and I'm seeking help on a small project I'm working on.



So firstly I want to make a 10x10 grid out of coordinates and then add a loop function that can randomly pick a cell and somehow store the cell coordinates it has picked without selecting the same cell twice.



So far I have come up with this.



x = 1
y = 1

scale = 10

nn =

for x in range(1,scale+1):
mm =
for y in range(1,scale+1):
xy = [x,y]
mm.append(xy)
#print(xy)
y=+1
nn.append(mm)
x=+1

Out:[[[1, 1],
[1, 2],
[1, 3],
[1, 4],
[1, 5],
[1, 6],
etc


The next part is where I'm struggling.



import random
r = random.randint(1,10)
x = 1
y = r

xy = [x,y]
print(xy)
while x < 10:

# direction North=1, East=2, South=3
if y == 1:
dir = [random.randint(0,1),random.randint(0,1)]
elif y == 10:
dir = [random.randint(0,1),random.randint(-1,0)]
else:
dir = [random.randint(0,1),random.randint(-1,1)]

xy = [(a + b) for (a, b) in zip(xy, dir)]

x = xy[0]
y = xy[1]

if xy == [(a + b) for (a, b) in zip(xy, dir)]:
pass
else:
print(xy)


Eventually I would like to plot the coordinates onto a grid and then put a map image over the grid.



This is my first question so please excuse mistakes and code quotes.
Thanks in advance










share|improve this question














I'm fairly new to using python and I'm seeking help on a small project I'm working on.



So firstly I want to make a 10x10 grid out of coordinates and then add a loop function that can randomly pick a cell and somehow store the cell coordinates it has picked without selecting the same cell twice.



So far I have come up with this.



x = 1
y = 1

scale = 10

nn =

for x in range(1,scale+1):
mm =
for y in range(1,scale+1):
xy = [x,y]
mm.append(xy)
#print(xy)
y=+1
nn.append(mm)
x=+1

Out:[[[1, 1],
[1, 2],
[1, 3],
[1, 4],
[1, 5],
[1, 6],
etc


The next part is where I'm struggling.



import random
r = random.randint(1,10)
x = 1
y = r

xy = [x,y]
print(xy)
while x < 10:

# direction North=1, East=2, South=3
if y == 1:
dir = [random.randint(0,1),random.randint(0,1)]
elif y == 10:
dir = [random.randint(0,1),random.randint(-1,0)]
else:
dir = [random.randint(0,1),random.randint(-1,1)]

xy = [(a + b) for (a, b) in zip(xy, dir)]

x = xy[0]
y = xy[1]

if xy == [(a + b) for (a, b) in zip(xy, dir)]:
pass
else:
print(xy)


Eventually I would like to plot the coordinates onto a grid and then put a map image over the grid.



This is my first question so please excuse mistakes and code quotes.
Thanks in advance







python matplotlib grid






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asked Nov 22 '18 at 17:09









Kam-ALIENKam-ALIEN

42




42








  • 1





    I'm not completely following how each code block relates to each other. What I think you're looking for is a set. docs.python.org/3/tutorial/datastructures.html#sets . On each loop, check the set if the new value exists. if not, add it, else try again.

    – J'e
    Nov 22 '18 at 17:19
















  • 1





    I'm not completely following how each code block relates to each other. What I think you're looking for is a set. docs.python.org/3/tutorial/datastructures.html#sets . On each loop, check the set if the new value exists. if not, add it, else try again.

    – J'e
    Nov 22 '18 at 17:19










1




1





I'm not completely following how each code block relates to each other. What I think you're looking for is a set. docs.python.org/3/tutorial/datastructures.html#sets . On each loop, check the set if the new value exists. if not, add it, else try again.

– J'e
Nov 22 '18 at 17:19







I'm not completely following how each code block relates to each other. What I think you're looking for is a set. docs.python.org/3/tutorial/datastructures.html#sets . On each loop, check the set if the new value exists. if not, add it, else try again.

– J'e
Nov 22 '18 at 17:19














1 Answer
1






active

oldest

votes


















0














From my understanding, you're trying to get non repetitive random sample from a grid of coordinates, This can be done much more easily like this:



import random
grid = [(x,y) for x in range(10) for y in range(10)] # grid points
randomset = random.sample(grid, 5) # get 5 random element from grid


Result:



>>> randomset
[(6, 6), (4, 7), (7, 7), (1, 7), (0, 3)] # each coordinate will be unique.





share|improve this answer
























  • Many thanks for your answer it did indeed help! Can you help me plot the x,y onto a 10x10 grid like format. Thank you!

    – Kam-ALIEN
    Nov 23 '18 at 10:55













  • 2D grid for visualisation. grid_array = np.array(grid) -- grid=np.meshgrid(grid_array)

    – Kam-ALIEN
    Nov 23 '18 at 11:19













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1 Answer
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active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














From my understanding, you're trying to get non repetitive random sample from a grid of coordinates, This can be done much more easily like this:



import random
grid = [(x,y) for x in range(10) for y in range(10)] # grid points
randomset = random.sample(grid, 5) # get 5 random element from grid


Result:



>>> randomset
[(6, 6), (4, 7), (7, 7), (1, 7), (0, 3)] # each coordinate will be unique.





share|improve this answer
























  • Many thanks for your answer it did indeed help! Can you help me plot the x,y onto a 10x10 grid like format. Thank you!

    – Kam-ALIEN
    Nov 23 '18 at 10:55













  • 2D grid for visualisation. grid_array = np.array(grid) -- grid=np.meshgrid(grid_array)

    – Kam-ALIEN
    Nov 23 '18 at 11:19


















0














From my understanding, you're trying to get non repetitive random sample from a grid of coordinates, This can be done much more easily like this:



import random
grid = [(x,y) for x in range(10) for y in range(10)] # grid points
randomset = random.sample(grid, 5) # get 5 random element from grid


Result:



>>> randomset
[(6, 6), (4, 7), (7, 7), (1, 7), (0, 3)] # each coordinate will be unique.





share|improve this answer
























  • Many thanks for your answer it did indeed help! Can you help me plot the x,y onto a 10x10 grid like format. Thank you!

    – Kam-ALIEN
    Nov 23 '18 at 10:55













  • 2D grid for visualisation. grid_array = np.array(grid) -- grid=np.meshgrid(grid_array)

    – Kam-ALIEN
    Nov 23 '18 at 11:19
















0












0








0







From my understanding, you're trying to get non repetitive random sample from a grid of coordinates, This can be done much more easily like this:



import random
grid = [(x,y) for x in range(10) for y in range(10)] # grid points
randomset = random.sample(grid, 5) # get 5 random element from grid


Result:



>>> randomset
[(6, 6), (4, 7), (7, 7), (1, 7), (0, 3)] # each coordinate will be unique.





share|improve this answer













From my understanding, you're trying to get non repetitive random sample from a grid of coordinates, This can be done much more easily like this:



import random
grid = [(x,y) for x in range(10) for y in range(10)] # grid points
randomset = random.sample(grid, 5) # get 5 random element from grid


Result:



>>> randomset
[(6, 6), (4, 7), (7, 7), (1, 7), (0, 3)] # each coordinate will be unique.






share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 22 '18 at 17:46









Rocky LiRocky Li

3,4531719




3,4531719













  • Many thanks for your answer it did indeed help! Can you help me plot the x,y onto a 10x10 grid like format. Thank you!

    – Kam-ALIEN
    Nov 23 '18 at 10:55













  • 2D grid for visualisation. grid_array = np.array(grid) -- grid=np.meshgrid(grid_array)

    – Kam-ALIEN
    Nov 23 '18 at 11:19





















  • Many thanks for your answer it did indeed help! Can you help me plot the x,y onto a 10x10 grid like format. Thank you!

    – Kam-ALIEN
    Nov 23 '18 at 10:55













  • 2D grid for visualisation. grid_array = np.array(grid) -- grid=np.meshgrid(grid_array)

    – Kam-ALIEN
    Nov 23 '18 at 11:19



















Many thanks for your answer it did indeed help! Can you help me plot the x,y onto a 10x10 grid like format. Thank you!

– Kam-ALIEN
Nov 23 '18 at 10:55







Many thanks for your answer it did indeed help! Can you help me plot the x,y onto a 10x10 grid like format. Thank you!

– Kam-ALIEN
Nov 23 '18 at 10:55















2D grid for visualisation. grid_array = np.array(grid) -- grid=np.meshgrid(grid_array)

– Kam-ALIEN
Nov 23 '18 at 11:19







2D grid for visualisation. grid_array = np.array(grid) -- grid=np.meshgrid(grid_array)

– Kam-ALIEN
Nov 23 '18 at 11:19






















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