For loop within GeoGraphics
up vote
2
down vote
favorite
I'm trying to plot a map with a list of destinations as Disks.
I first input the cities into a list such as:
destinations = {GeoPosition[New York City],
GeoPosition[Mumbai],
...}
where "New York City" is input using the Ctrl+= method to access interpreter and specify it as a city.
Then I have something summarizing to:
GeoGraphics[{
Black,
Disk[For[i=1, i<Length[destinations]+1,i++,destinations[[i]],1],
...
Disk[city,1],
},
...
]
This outputs a map with my desired projection settings such as background, range, and the single disk that I specified separately like:
Disk[city,1],
I have also tried to put the Disk function inside a for loop like:
For[i=1, i<Length[destinations]+1,i++,Disk[destinations[[i]],1]],
It's not an incorrect indexing of the destinations list either, because
For[i=1, i<Length[destinations]+1,i++,Print[destinations[[i]]]]
outputs the correct amount of cities, whereas
For[i=0, i<Length[destinations],i++,Print[destinations[[i]]]]
outputs a first item of "List" and doesn't print the last city.
Is it possible to use for loops within a GeoGraphics function, or would I be required to add a Disk function line for each item I would like to plot instead of iterating through a list?
Thanks in advance for the help!
list-manipulation geographics
edited Nov 29 at 21:08
kglr
175k9197402
asked Nov 29 at 20:02
Reedinationer
415
add a comment |
up vote
2
down vote
favorite
I'm trying to plot a map with a list of destinations as Disks.
I first input the cities into a list such as:
destinations = {GeoPosition[New York City],
GeoPosition[Mumbai],
...}
where "New York City" is input using the Ctrl+= method to access interpreter and specify it as a city.
Then I have something summarizing to:
GeoGraphics[{
Black,
Disk[For[i=1, i<Length[destinations]+1,i++,destinations[[i]],1],
...
Disk[city,1],
},
...
]
This outputs a map with my desired projection settings such as background, range, and the single disk that I specified separately like:
Disk[city,1],
I have also tried to put the Disk function inside a for loop like:
For[i=1, i<Length[destinations]+1,i++,Disk[destinations[[i]],1]],
It's not an incorrect indexing of the destinations list either, because
For[i=1, i<Length[destinations]+1,i++,Print[destinations[[i]]]]
outputs the correct amount of cities, whereas
For[i=0, i<Length[destinations],i++,Print[destinations[[i]]]]
outputs a first item of "List" and doesn't print the last city.
Is it possible to use for loops within a GeoGraphics function, or would I be required to add a Disk function line for each item I would like to plot instead of iterating through a list?
Thanks in advance for the help!
list-manipulation geographics
edited Nov 29 at 21:08
kglr
175k9197402
asked Nov 29 at 20:02
Reedinationer
415
add a comment |
up vote
2
down vote
favorite
up vote
2
down vote
favorite
I'm trying to plot a map with a list of destinations as Disks.
I first input the cities into a list such as:
destinations = {GeoPosition[New York City],
GeoPosition[Mumbai],
...}
where "New York City" is input using the Ctrl+= method to access interpreter and specify it as a city.
Then I have something summarizing to:
GeoGraphics[{
Black,
Disk[For[i=1, i<Length[destinations]+1,i++,destinations[[i]],1],
...
Disk[city,1],
},
...
]
This outputs a map with my desired projection settings such as background, range, and the single disk that I specified separately like:
Disk[city,1],
I have also tried to put the Disk function inside a for loop like:
For[i=1, i<Length[destinations]+1,i++,Disk[destinations[[i]],1]],
It's not an incorrect indexing of the destinations list either, because
For[i=1, i<Length[destinations]+1,i++,Print[destinations[[i]]]]
outputs the correct amount of cities, whereas
For[i=0, i<Length[destinations],i++,Print[destinations[[i]]]]
outputs a first item of "List" and doesn't print the last city.
Is it possible to use for loops within a GeoGraphics function, or would I be required to add a Disk function line for each item I would like to plot instead of iterating through a list?
Thanks in advance for the help!
list-manipulation geographics
edited Nov 29 at 21:08
kglr
175k9197402
asked Nov 29 at 20:02
Reedinationer
415
I'm trying to plot a map with a list of destinations as Disks.
I first input the cities into a list such as:
destinations = {GeoPosition[New York City],
GeoPosition[Mumbai],
...}
where "New York City" is input using the Ctrl+= method to access interpreter and specify it as a city.
Then I have something summarizing to:
GeoGraphics[{
Black,
Disk[For[i=1, i<Length[destinations]+1,i++,destinations[[i]],1],
...
Disk[city,1],
},
...
]
This outputs a map with my desired projection settings such as background, range, and the single disk that I specified separately like:
Disk[city,1],
I have also tried to put the Disk function inside a for loop like:
For[i=1, i<Length[destinations]+1,i++,Disk[destinations[[i]],1]],
It's not an incorrect indexing of the destinations list either, because
For[i=1, i<Length[destinations]+1,i++,Print[destinations[[i]]]]
outputs the correct amount of cities, whereas
For[i=0, i<Length[destinations],i++,Print[destinations[[i]]]]
outputs a first item of "List" and doesn't print the last city.
Is it possible to use for loops within a GeoGraphics function, or would I be required to add a Disk function line for each item I would like to plot instead of iterating through a list?
Thanks in advance for the help!
list-manipulation geographics
list-manipulation geographics
edited Nov 29 at 21:08
kglr
175k9197402
asked Nov 29 at 20:02
Reedinationer
415
edited Nov 29 at 21:08
kglr
175k9197402
asked Nov 29 at 20:02
Reedinationer
415
edited Nov 29 at 21:08
kglr
175k9197402
edited Nov 29 at 21:08
kglr
175k9197402
edited Nov 29 at 21:08
kglr
175k9197402
175k9197402
asked Nov 29 at 20:02
Reedinationer
415
asked Nov 29 at 20:02
Reedinationer
415
asked Nov 29 at 20:02
Reedinationer
415
415
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
up vote
5
down vote
You don't need For loops.
Instead you can Map Disk on destinations; that is, use Disk /@ destinations (Disk[#, 5]& /@ destinations if you want a radius of 5 instead of the default radius 1).
cities = {Entity["City", {"NewYork", "NewYork", "UnitedStates"}],
Entity["City", {"London", "GreaterLondon", "UnitedKingdom"}],
Entity["City", {"Bombay", "Maharashtra", "India"}],
Entity["City", {"Delhi", "Delhi", "India"}]};
destinations = GeoPosition /@ cities;
GeoGraphics[{Black, Disk /@ destinations}]
Notes: If you have to use a For loop you can do:
disks = {};
For[i = 1, i <= Length[destinations], i++, AppendTo[disks, Disk[destinations[[i]]]]];
GeoGraphics[{Black, disks}]
same picture
Alternatively, you can use Table:
Table[Disk[i], {i, destinations}] == disks
True
and if you have to use a For loop inside GeoGraphics
GeoGraphics[{Black, disks = {};
For[i = 1, i <= Length[destinations], i++,
AppendTo[disks, Disk[destinations[[i]]]]]; disks}]
same picture
answered Nov 29 at 20:44
kglr
175k9197402
Yes, this works perfectly thank you!
– Reedinationer
Nov 29 at 22:07
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
5
down vote
You don't need For loops.
Instead you can Map Disk on destinations; that is, use Disk /@ destinations (Disk[#, 5]& /@ destinations if you want a radius of 5 instead of the default radius 1).
cities = {Entity["City", {"NewYork", "NewYork", "UnitedStates"}],
Entity["City", {"London", "GreaterLondon", "UnitedKingdom"}],
Entity["City", {"Bombay", "Maharashtra", "India"}],
Entity["City", {"Delhi", "Delhi", "India"}]};
destinations = GeoPosition /@ cities;
GeoGraphics[{Black, Disk /@ destinations}]
Notes: If you have to use a For loop you can do:
disks = {};
For[i = 1, i <= Length[destinations], i++, AppendTo[disks, Disk[destinations[[i]]]]];
GeoGraphics[{Black, disks}]
same picture
Alternatively, you can use Table:
Table[Disk[i], {i, destinations}] == disks
True
and if you have to use a For loop inside GeoGraphics
GeoGraphics[{Black, disks = {};
For[i = 1, i <= Length[destinations], i++,
AppendTo[disks, Disk[destinations[[i]]]]]; disks}]
same picture
answered Nov 29 at 20:44
kglr
175k9197402
Yes, this works perfectly thank you!
– Reedinationer
Nov 29 at 22:07
add a comment |
up vote
5
down vote
You don't need For loops.
Instead you can Map Disk on destinations; that is, use Disk /@ destinations (Disk[#, 5]& /@ destinations if you want a radius of 5 instead of the default radius 1).
cities = {Entity["City", {"NewYork", "NewYork", "UnitedStates"}],
Entity["City", {"London", "GreaterLondon", "UnitedKingdom"}],
Entity["City", {"Bombay", "Maharashtra", "India"}],
Entity["City", {"Delhi", "Delhi", "India"}]};
destinations = GeoPosition /@ cities;
GeoGraphics[{Black, Disk /@ destinations}]
Notes: If you have to use a For loop you can do:
disks = {};
For[i = 1, i <= Length[destinations], i++, AppendTo[disks, Disk[destinations[[i]]]]];
GeoGraphics[{Black, disks}]
same picture
Alternatively, you can use Table:
Table[Disk[i], {i, destinations}] == disks
True
and if you have to use a For loop inside GeoGraphics
GeoGraphics[{Black, disks = {};
For[i = 1, i <= Length[destinations], i++,
AppendTo[disks, Disk[destinations[[i]]]]]; disks}]
same picture
answered Nov 29 at 20:44
kglr
175k9197402
Yes, this works perfectly thank you!
– Reedinationer
Nov 29 at 22:07
add a comment |
up vote
5
down vote
up vote
5
down vote
You don't need For loops.
Instead you can Map Disk on destinations; that is, use Disk /@ destinations (Disk[#, 5]& /@ destinations if you want a radius of 5 instead of the default radius 1).
cities = {Entity["City", {"NewYork", "NewYork", "UnitedStates"}],
Entity["City", {"London", "GreaterLondon", "UnitedKingdom"}],
Entity["City", {"Bombay", "Maharashtra", "India"}],
Entity["City", {"Delhi", "Delhi", "India"}]};
destinations = GeoPosition /@ cities;
GeoGraphics[{Black, Disk /@ destinations}]
Notes: If you have to use a For loop you can do:
disks = {};
For[i = 1, i <= Length[destinations], i++, AppendTo[disks, Disk[destinations[[i]]]]];
GeoGraphics[{Black, disks}]
same picture
Alternatively, you can use Table:
Table[Disk[i], {i, destinations}] == disks
True
and if you have to use a For loop inside GeoGraphics
GeoGraphics[{Black, disks = {};
For[i = 1, i <= Length[destinations], i++,
AppendTo[disks, Disk[destinations[[i]]]]]; disks}]
same picture
answered Nov 29 at 20:44
kglr
175k9197402
You don't need For loops.
Instead you can Map Disk on destinations; that is, use Disk /@ destinations (Disk[#, 5]& /@ destinations if you want a radius of 5 instead of the default radius 1).
cities = {Entity["City", {"NewYork", "NewYork", "UnitedStates"}],
Entity["City", {"London", "GreaterLondon", "UnitedKingdom"}],
Entity["City", {"Bombay", "Maharashtra", "India"}],
Entity["City", {"Delhi", "Delhi", "India"}]};
destinations = GeoPosition /@ cities;
GeoGraphics[{Black, Disk /@ destinations}]
Notes: If you have to use a For loop you can do:
disks = {};
For[i = 1, i <= Length[destinations], i++, AppendTo[disks, Disk[destinations[[i]]]]];
GeoGraphics[{Black, disks}]
same picture
Alternatively, you can use Table:
Table[Disk[i], {i, destinations}] == disks
True
and if you have to use a For loop inside GeoGraphics
GeoGraphics[{Black, disks = {};
For[i = 1, i <= Length[destinations], i++,
AppendTo[disks, Disk[destinations[[i]]]]]; disks}]
same picture
answered Nov 29 at 20:44
kglr
175k9197402
edited Dec 15 at 4:25
answered Nov 29 at 20:44
kglr
175k9197402
answered Nov 29 at 20:44
kglr
175k9197402
answered Nov 29 at 20:44
kglr
175k9197402
175k9197402
Yes, this works perfectly thank you!
– Reedinationer
Nov 29 at 22:07
add a comment |
Yes, this works perfectly thank you!
– Reedinationer
Nov 29 at 22:07
Yes, this works perfectly thank you!
– Reedinationer
Nov 29 at 22:07
Yes, this works perfectly thank you!
– Reedinationer
Nov 29 at 22:07
add a comment |
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