Insert a point into feature class based on another point [arcpy]Automatically update feature class based on...
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Insert a point into feature class based on another point [arcpy]
Automatically update feature class based on another feature class in same geodatabaseAssigning an NTA code to a point feature class from a polygon feature classAdding field values from feature class into empty field of another feature class using appendCreating new feature class based on x- and y- coordinates?Using Update Cursor to update all fields in a feature class based upon another feature classCannot insert data into my feature classWhich is the faster way to copy data to another feature class: Feature Class to Feature Class or Insert CursorHow to insert a single point feature into a shapefile?Point feature class showing up empty?Write a script to create a new feature class and add the point objects of geometry to that feature class
My assignment is to insert (using insertCursor) a new city at 0.02 decimal degrees east and 0.03 decimal degrees south of another city. The cities shapfile did not originally have x-y coordinate fields; I added them manually and only for the latter city. However, I'm still not able to use SHAPE@XY or to even print the x-y coordinates on which the new point will be based.
I've been calling the old city based on its FID (1942), but I'm utterly lost on how to use it to add the new city.
Also, in my code, are the mxd, df, and ll objects necessary, or is it enough to call the shapefile using the featureclass object?
arcpy point cursor
asked 32 mins ago
andmandm
11
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add a comment |
My assignment is to insert (using insertCursor) a new city at 0.02 decimal degrees east and 0.03 decimal degrees south of another city. The cities shapfile did not originally have x-y coordinate fields; I added them manually and only for the latter city. However, I'm still not able to use SHAPE@XY or to even print the x-y coordinates on which the new point will be based.
I've been calling the old city based on its FID (1942), but I'm utterly lost on how to use it to add the new city.
Also, in my code, are the mxd, df, and ll objects necessary, or is it enough to call the shapefile using the featureclass object?
arcpy point cursor
asked 32 mins ago
andmandm
11
New contributor
andm is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
Please paste code as text, it makes it easier for us to copy and modify rather than retyping the whole thing. Everything before featureclass= is superfluous, it's not being used but will result in repetition. It's probably not working because you need to add 'r' in front of your feature class full path or double the backslashes (backslash is the escape char).
– Michael Stimson
28 mins ago
add a comment |
My assignment is to insert (using insertCursor) a new city at 0.02 decimal degrees east and 0.03 decimal degrees south of another city. The cities shapfile did not originally have x-y coordinate fields; I added them manually and only for the latter city. However, I'm still not able to use SHAPE@XY or to even print the x-y coordinates on which the new point will be based.
I've been calling the old city based on its FID (1942), but I'm utterly lost on how to use it to add the new city.
Also, in my code, are the mxd, df, and ll objects necessary, or is it enough to call the shapefile using the featureclass object?
arcpy point cursor
asked 32 mins ago
andmandm
11
New contributor
andm is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
My assignment is to insert (using insertCursor) a new city at 0.02 decimal degrees east and 0.03 decimal degrees south of another city. The cities shapfile did not originally have x-y coordinate fields; I added them manually and only for the latter city. However, I'm still not able to use SHAPE@XY or to even print the x-y coordinates on which the new point will be based.
I've been calling the old city based on its FID (1942), but I'm utterly lost on how to use it to add the new city.
Also, in my code, are the mxd, df, and ll objects necessary, or is it enough to call the shapefile using the featureclass object?
arcpy point cursor
arcpy point cursor
asked 32 mins ago
andmandm
11
New contributor
andm is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 32 mins ago
andmandm
11
New contributor
andm is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 6 mins ago
andm
asked 32 mins ago
andmandm
11
New contributor
andm is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 32 mins ago
andmandm
11
asked 32 mins ago
andmandm
11
11
New contributor
andm is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
andm is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
andm is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
Please paste code as text, it makes it easier for us to copy and modify rather than retyping the whole thing. Everything before featureclass= is superfluous, it's not being used but will result in repetition. It's probably not working because you need to add 'r' in front of your feature class full path or double the backslashes (backslash is the escape char).
– Michael Stimson
28 mins ago
add a comment |
1
Please paste code as text, it makes it easier for us to copy and modify rather than retyping the whole thing. Everything before featureclass= is superfluous, it's not being used but will result in repetition. It's probably not working because you need to add 'r' in front of your feature class full path or double the backslashes (backslash is the escape char).
– Michael Stimson
28 mins ago
1
1
Please paste code as text, it makes it easier for us to copy and modify rather than retyping the whole thing. Everything before featureclass= is superfluous, it's not being used but will result in repetition. It's probably not working because you need to add 'r' in front of your feature class full path or double the backslashes (backslash is the escape char).
– Michael Stimson
28 mins ago
Please paste code as text, it makes it easier for us to copy and modify rather than retyping the whole thing. Everything before featureclass= is superfluous, it's not being used but will result in repetition. It's probably not working because you need to add 'r' in front of your feature class full path or double the backslashes (backslash is the escape char).
– Michael Stimson
28 mins ago
add a comment |
1 Answer
1
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oldest
votes
Consider something like this, using the where clause of the search cursor to limit the cursor to just the one row:
featureclass = r'e:SchoolworkGEOGGEOG5590HomeworkHomework3CITIES.shp'
# search cursor with just the FID you want, btw it's bad to rely on FIDs
# in a shapefile as they have a habit of changing
with arcpy.da.SeachCursor(featureclass,'SHAPE@XY','FID = 1942') as SCur:
for row in SCur:
XY = row[0] # xy is a tuple (X,Y) to use later
break # done the first one, now break out
# BIG assumption that the data is geographic CRS
with arcpy.da.UpdateCursor(featureclass,'SHAPE@XY') as ICur:
# adjust the values
newX = XY[0] + 0.02
newY = XY[1] - 0.03
ICur.insertRow(((newX,newY))) # insert the tuple of the new X and Y
This assumes you want to insert your new city into the same feature class you sourced the original from and that your data is already geographical. The SHAPE@XY token returns a tuple (X,Y) but you could also use ['SHAPE@X','SHAPE@Y'] which would make your insertRow((newX,newY)) as you're inserting the row as a tuple of values.
Lists can be used instead of tuples, see the examples, as it tends to make it easier to understand whether you're closing the statement, row or tuple:
ICur.insertRow([(newX,newY)]) # insert the tuple of the new X and Y
answered 16 mins ago
Michael StimsonMichael Stimson
21.7k22460
add a comment |
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active
oldest
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active
oldest
votes
Consider something like this, using the where clause of the search cursor to limit the cursor to just the one row:
featureclass = r'e:SchoolworkGEOGGEOG5590HomeworkHomework3CITIES.shp'
# search cursor with just the FID you want, btw it's bad to rely on FIDs
# in a shapefile as they have a habit of changing
with arcpy.da.SeachCursor(featureclass,'SHAPE@XY','FID = 1942') as SCur:
for row in SCur:
XY = row[0] # xy is a tuple (X,Y) to use later
break # done the first one, now break out
# BIG assumption that the data is geographic CRS
with arcpy.da.UpdateCursor(featureclass,'SHAPE@XY') as ICur:
# adjust the values
newX = XY[0] + 0.02
newY = XY[1] - 0.03
ICur.insertRow(((newX,newY))) # insert the tuple of the new X and Y
This assumes you want to insert your new city into the same feature class you sourced the original from and that your data is already geographical. The SHAPE@XY token returns a tuple (X,Y) but you could also use ['SHAPE@X','SHAPE@Y'] which would make your insertRow((newX,newY)) as you're inserting the row as a tuple of values.
Lists can be used instead of tuples, see the examples, as it tends to make it easier to understand whether you're closing the statement, row or tuple:
ICur.insertRow([(newX,newY)]) # insert the tuple of the new X and Y
answered 16 mins ago
Michael StimsonMichael Stimson
21.7k22460
add a comment |
Consider something like this, using the where clause of the search cursor to limit the cursor to just the one row:
featureclass = r'e:SchoolworkGEOGGEOG5590HomeworkHomework3CITIES.shp'
# search cursor with just the FID you want, btw it's bad to rely on FIDs
# in a shapefile as they have a habit of changing
with arcpy.da.SeachCursor(featureclass,'SHAPE@XY','FID = 1942') as SCur:
for row in SCur:
XY = row[0] # xy is a tuple (X,Y) to use later
break # done the first one, now break out
# BIG assumption that the data is geographic CRS
with arcpy.da.UpdateCursor(featureclass,'SHAPE@XY') as ICur:
# adjust the values
newX = XY[0] + 0.02
newY = XY[1] - 0.03
ICur.insertRow(((newX,newY))) # insert the tuple of the new X and Y
This assumes you want to insert your new city into the same feature class you sourced the original from and that your data is already geographical. The SHAPE@XY token returns a tuple (X,Y) but you could also use ['SHAPE@X','SHAPE@Y'] which would make your insertRow((newX,newY)) as you're inserting the row as a tuple of values.
Lists can be used instead of tuples, see the examples, as it tends to make it easier to understand whether you're closing the statement, row or tuple:
ICur.insertRow([(newX,newY)]) # insert the tuple of the new X and Y
answered 16 mins ago
Michael StimsonMichael Stimson
21.7k22460
add a comment |
Consider something like this, using the where clause of the search cursor to limit the cursor to just the one row:
featureclass = r'e:SchoolworkGEOGGEOG5590HomeworkHomework3CITIES.shp'
# search cursor with just the FID you want, btw it's bad to rely on FIDs
# in a shapefile as they have a habit of changing
with arcpy.da.SeachCursor(featureclass,'SHAPE@XY','FID = 1942') as SCur:
for row in SCur:
XY = row[0] # xy is a tuple (X,Y) to use later
break # done the first one, now break out
# BIG assumption that the data is geographic CRS
with arcpy.da.UpdateCursor(featureclass,'SHAPE@XY') as ICur:
# adjust the values
newX = XY[0] + 0.02
newY = XY[1] - 0.03
ICur.insertRow(((newX,newY))) # insert the tuple of the new X and Y
This assumes you want to insert your new city into the same feature class you sourced the original from and that your data is already geographical. The SHAPE@XY token returns a tuple (X,Y) but you could also use ['SHAPE@X','SHAPE@Y'] which would make your insertRow((newX,newY)) as you're inserting the row as a tuple of values.
Lists can be used instead of tuples, see the examples, as it tends to make it easier to understand whether you're closing the statement, row or tuple:
ICur.insertRow([(newX,newY)]) # insert the tuple of the new X and Y
answered 16 mins ago
Michael StimsonMichael Stimson
21.7k22460
Consider something like this, using the where clause of the search cursor to limit the cursor to just the one row:
featureclass = r'e:SchoolworkGEOGGEOG5590HomeworkHomework3CITIES.shp'
# search cursor with just the FID you want, btw it's bad to rely on FIDs
# in a shapefile as they have a habit of changing
with arcpy.da.SeachCursor(featureclass,'SHAPE@XY','FID = 1942') as SCur:
for row in SCur:
XY = row[0] # xy is a tuple (X,Y) to use later
break # done the first one, now break out
# BIG assumption that the data is geographic CRS
with arcpy.da.UpdateCursor(featureclass,'SHAPE@XY') as ICur:
# adjust the values
newX = XY[0] + 0.02
newY = XY[1] - 0.03
ICur.insertRow(((newX,newY))) # insert the tuple of the new X and Y
This assumes you want to insert your new city into the same feature class you sourced the original from and that your data is already geographical. The SHAPE@XY token returns a tuple (X,Y) but you could also use ['SHAPE@X','SHAPE@Y'] which would make your insertRow((newX,newY)) as you're inserting the row as a tuple of values.
Lists can be used instead of tuples, see the examples, as it tends to make it easier to understand whether you're closing the statement, row or tuple:
ICur.insertRow([(newX,newY)]) # insert the tuple of the new X and Y
answered 16 mins ago
Michael StimsonMichael Stimson
21.7k22460
answered 16 mins ago
Michael StimsonMichael Stimson
21.7k22460
answered 16 mins ago
Michael StimsonMichael Stimson
21.7k22460
answered 16 mins ago
Michael StimsonMichael Stimson
21.7k22460
21.7k22460
add a comment |
add a comment |
andm is a new contributor. Be nice, and check out our Code of Conduct.
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andm is a new contributor. Be nice, and check out our Code of Conduct.
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Please paste code as text, it makes it easier for us to copy and modify rather than retyping the whole thing. Everything before featureclass= is superfluous, it's not being used but will result in repetition. It's probably not working because you need to add 'r' in front of your feature class full path or double the backslashes (backslash is the escape char).
– Michael Stimson
28 mins ago