Questions tagged [geodataframe]
The geodataframe tag has no usage guidance.
31
questions
0
votes
1answer
51 views
Attempting to get the distance between two Point objects. Getting AttributeError: 'GeoSeries' object has no attribute '_geom'
I am a beginner in GIS. Using the code below to get the distance between two Point objects from two separate GeoDataframe. Using the shapely distance function.
Can someone please explain to me what I ...
1
vote
0answers
47 views
Write GeoPandas df to PostGIS - Linestring Z geometry
I am trying to write a geodataframe with Linestring Z geometry to a PostGIS table.
This rise the error:
ProgrammingError: (psycopg2.ProgrammingError) can't adapt type 'LineString'
[SQL: INSERT INTO ...
1
vote
1answer
99 views
Getting geometry column integer SRID from a GeoPandas geodataframe?
The primary answer to Adding GeoPandas Dataframe to PostGIS table? requires entering the geodataframe geometry column's integer SRID.
Getting the CRS attribute using the crs attribute like so
import ...
1
vote
1answer
73 views
Error while converting Dataframe to Geodataframe
I am trying to convert a table to a shapefile. To do that, I am storing that table in a dataframe and then I am trying to convert that dataframe to geodataframe using GeoPandas. But I am getting an ...
0
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0answers
31 views
How to upload only a shapefile to R shiny and convert it to spatial dataframe?
I have been searched to upload a shapefile in ui.R and to convert the shapefile to spatial dataframe using sf in server.R. But I didn't got any answer. If someone knows let me know.
2
votes
1answer
1k views
Convert GeoJSON to GeoPandas GeoDataframe
I created the following GeoJSON object with this code:
from rasterio.features import shapes
polys = []
for shape, value in shapes(segments, transform=affine):
polys.append(shape)
[{'type': '...
0
votes
1answer
103 views
ValueError geopandas.sjoin: why does it not read my GeoDataFrame?
I'm working on a spatial join between a polygon from a shapefile and points from a CSV file, using geopandas.sjoin. I want to assign each point with a name of the province it is located in. I do know ...
1
vote
1answer
23 views
GeoDataFrame - Unable to select range of linestrings
df = sample['geometry']
line_gdf = gpd.GeoDataFrame(geometry=[df[2], df[3], df[4], df[5], df[6], df[7], df[8], df[9]])
Above is the manual process of selecting Line Strings
In order to select from ...
0
votes
0answers
36 views
Error converting a DataFrame to a GeoDataFrame
I have a two DataFrames, one with a Point column and the other with a MultiPolygon column. I need to convert both of then into a GeoDataFrame.
To do it with the first one I have used this:
geometry =...
0
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0answers
154 views
Cannot create geodataframe from feature class due to IndexError: list index out of range
I have a function that helps me read in large feature classes and them create a geodataframe:
line_feat = "S_Studies_Ln"
cnms_cols = ['REACH_ID', 'STUDY_ID', 'CO_FIPS', 'CID', 'FLD_ZONE',
'...
2
votes
1answer
47 views
Retaining last position of vessel position in geodataframe including time series?
I have geodataframe about vessel position which include unique code called 'mmsi' and time series. In the following 'mmsi' column has more than 1 'mmsi' code and time series (* mark).
mmsi ...
1
vote
0answers
230 views
Create a geodataframe with more than one one geo_column
I am working with Postgresql/postgis and geopandas. I have tables with more than one geometry.
How can I move this kind of tables to geopandas recognizing all the geometries columns? I am using ....
1
vote
2answers
1k views
How to pull values from one geodataframe to populate corresponding column/rows in another geodataframe
I have 2 geodataframes; one made from polygons (bldg_res_df) and one from centroid points (parcel_res_df). I used .concat to combine them into a single geodataframe to do some calculations.
df_list = ...
2
votes
1answer
270 views
Why does spatial join on geodataframes return empty result?
I have two geodataframes that I want to perform a spatial join on; one is points, one is polygons. They are both dtype: int64. They both have .crs = {'init': 'epsg:4326'}. I have verified both of them ...
1
vote
1answer
40 views
Why does geodataframe never complete?
I had a feature class made up of 1,700,000 polygons. I used Geopandas to create a geodataframe:
state = "MD"
state_gdb = r"C:\Projects\Pop_Alloc\{}_Data.gdb".format(state)
join_feat = "{}...
1
vote
2answers
109 views
How to create a sub dataframe from a dataframe using specific columns
I have a dataframe that has more fields/columns than I want, so I am trying to create a sub dataframe that only has certain fields/columns. The following throws a
TypeError: '(['uniqueid'], ['...
2
votes
1answer
487 views
How to merge geoseries to geodataframe based on geometry attribute
I have 5868 points in a geodataframe with some columns/attributes. Between points which have distance less than 10 m, I just want to select only one point as representation in that area. I have done ...
0
votes
1answer
312 views
Geopandas intersects/contains fails between GeoDataFrames
I am struggling to make the GeoDataFrame functions: intersects/contains work between GeoDataFrames instances.
Let t be a GeoDataFrame with contents:
id ...
0
votes
1answer
333 views
Equivalent method for .withcolumn() for geodataframe
I am trying to use a user-defined function in pyspark in order to check whether the points in CANmep_GDF lie within the polygons in gda_GDF.
from geopandas import GeoDataFrame
def check_exist(geom):...
0
votes
0answers
65 views
Locating observations that lies within a collection of Polygons (Python)
I'm trying to locate the observations that lie within a collection of Polygons but my current implementation takes forever, and I suspect that it is because the 'within' method needs to check all ...
2
votes
1answer
787 views
How to convert a spatial Oracle LOB object type to a Geodataframe listlike geometry object column
I have in my dataframe one column with cx_Oracle.LOB object [2D polygon type], made with a SDO_UTIL.TO_WKTGEOMETRY SQL function and I want to create a geodataframe, and set my geometry column the ...
0
votes
1answer
319 views
How to create a shapefile [polygon type] from a Geodataframe, returned from a Oracle Spatial cursor with geometry column type=cx_Oracle.LOB?
I'm trying to create a shapefile [2D polygon type] with a Geodataframe, that result from a SQL made to a Oracle Spatial database.
The SQL and the Geodataframe creation runs without errors, but when I ...
1
vote
0answers
39 views
Python function like SAGA Grid Gridding?
For a python script, I'm searching for a function that does the same as SAGA Grid gridding, an exponential interpolation on GeoPandas GeoDataFrame.
Does anyone know one?
1
vote
2answers
2k views
How to convert GeoSeries polygons to lists of coordinates?
I have a GeoDataFrame consisting polygons. How can I convert each polygon into a list of coordinates? Is there any attribute, method or function in GeoPandas to do this?
3
votes
1answer
3k views
Convert polygon bounding box to geodataframe?
I have a pandas dataframe that contains bounding box information for tiled raster data in the following format.
left bottom right top
466583.40921 3135701....
2
votes
1answer
3k views
Geometry Data in GeoDataFrame will not plot
I want to import a CSV to use as a geodataframe. When I plot it, nothing shows, which makes me think I'm doing something wrong. Here's my code.
import pandas as pd
from geopandas import GeoDataFrame
...
0
votes
1answer
132 views
MapInfo Pro 64-bit - 16.0.3 - Snap Frame to Guideline (unable to?)
I am using MapInfo Pro 64-bit v16.0.3
In the layout, I want to snap my map frame to the guideline. I've noticed that when I create a rectangular box, this snaps to the guidelines once the edge is ...
0
votes
1answer
1k views
Why gdf.explode() doesn't work?
I'm trying to merge 2 geodataframes and combine all entities.
So I use :
cloudNshadow = gpd.overlay(cloud, shadow, how='union')
cloudNshadow = cloudNshadow.unary_union()
But it returns me :
...
1
vote
1answer
682 views
Intersection with Shapely and Fiona gives Key Error
I have written a script for standalone python based on this example for doing intersections of linestrings (representing streets) and polygons (representing gridcells) using shapely/fiona. The ...
9
votes
2answers
10k views
Creating polygon grid using Geopandas
I'm working with a geodataframe of points and I need to create a grid of rectangular polygons.
I know how to have bounds of the geodataframe with gdf.geometry.bounds. Now using this information and ...
2
votes
1answer
5k views
CSV to Geodataframe : How to have valid geometry objects?
I'm writing a script with Geopandas. I try to use a csv of blocks to make a spatial join. So I convert it as a Geodataframe. But when I want to set geometry column it returns me Input geometry column ...
