Questions tagged [data-frame]
A map element that defines display properties for one or more layers in ArcMap.
166
questions
0
votes
2
answers
37
views
Symbology to layers not working
I want to apply layer symbology to all TIFF in a group layer but it does not work:
import arcpy
mxd = arcpy.mapping.MapDocument("CURRENT")
df = mxd.activeDataFrame
groupName = "New ...
- 79
0
votes
0
answers
77
views
ArcPy Pandas export spatial data frame to feature class
I am successfully creating two data frames with ArcPy and Pandas, 1) from an enterprise geodatabase feature class and 2) from an enterprise geodatabase table, then merging them into 3) data frame that ...
1
vote
0
answers
56
views
SPI function on a dataframe versus on a raster stack?
I have a raster stack representing monthly precipitation values from 2007 to 2016.
class : RasterStack
dimensions : 360, 720, 259200, 120 (nrow, ncol, ncell, nlayers)
resolution : 0.5, 0.5 (x, ...
- 41
0
votes
2
answers
67
views
Quickly generate multiple hillshades from DEMs in ArcGIS Pro
In ArcGIS Desktop I would usually use ImageAnalyst app where it was easy to quickly generate hillshade from DEMs that are in data frame. But I can't find anything similar in ArcGIS Pro version, except ...
- 31
2
votes
3
answers
1k
views
Creating GeoTIFF from Pandas DataFrame
I have a Pandas DataFrame that looks like this:
SIF_743,latitude,longitude
0.7626782059669495,-85.90831756591797,22.40107536315918
0.3139636516571045,-85.9532470703125,22.630943298339844
0....
- 149
1
vote
1
answer
418
views
Merging points to linestrings using GeoPandas
I have two GeoPandas DataFrames:
points (long,lat) : 60,000 rows
Jams segment (LineStrings) : 204,000 rows
I am trying to create a new DataFrame with the points that are located on LineStrings.
I ...
- 11
2
votes
2
answers
435
views
"ValueError: Point coordinates must be finite." when reverse geocoding in DataFrame using GeoPy
I'm making a script in Python that takes the coordinates in a DataFrame, looks for the address and writes it in the DataFrame.
My DataFrame for testing purposes: https://docs.google.com/spreadsheets/d/...
- 21
5
votes
2
answers
2k
views
Intersection of two GeoPandas Dataframes
I have two GeoPandas dataframes titre_polyG and df which I have intersected as follows:
titre_polyG is as follows:
0 MULTIPOLYGON (((-7.64026 33.59134, -7.63996 33...
1 MULTIPOLYGON (((-7....
- 409
2
votes
1
answer
4k
views
Reading .KML with GeoPandas
I am trying to read a .kml file (here is an example of the input):
<name>99</name>
<Style><LineStyle><color>ff0000ff</color></LineStyle><PolyStyle>&...
- 409
0
votes
1
answer
241
views
QThread crashes QGIS
I'm trying to use a QThread for CSV export that can freeze my UI. Therefore I have a polyvalent Thread class below :
class Thread(QThread):
finished = pyqtSignal()
def __init__(self, fn, *...
- 1,077
1
vote
0
answers
189
views
Spatial join for checking whether a coordinate lies within a shape polygon
I've a database of coordinates that records lat,lon values in 2 separate columns as double.
I'm trying to map these points to polygons within my shapefile using geopandas spatial join, but I keep ...
1
vote
1
answer
85
views
Tilting shapefile so it appears flat or seen on its edge
I don’t know exactly how to explain what it is I am trying to do so I will have to resort to a couple of pics. Hopefully that will explain it for me. I am trying to ‘tip’ shapefiles so that they are ...
- 11
0
votes
0
answers
195
views
Incorrect number of dimensions in creating multiple plots using a for loop with ggplot2
I'm trying to map out all these different "solutions" from the prioritize model using ggplot. (To preface I'm very new to R so perhaps my code/methods are extremely rudimentary and why I'm ...
- 1
6
votes
2
answers
3k
views
Joining two Pandas DataFrames based on lat, long as fields
I have two Pandas DataFrames containing "lat" and "long" coordinates. I'd like to do a spatial join and merge columns from one DataFrame into another.
import pandas as pd
df1 = pd....
- 465
3
votes
3
answers
7k
views
Reverse geocoding of Pandas DataFrame with Lat/Long columns
I have a DataFrame with Lat/Long coordinates in separate series. I am trying to use GeoPy and Nominatim to get the reverse raw address. I keep getting errors such as:
TypeError: reverse() takes 2 ...
- 613
1
vote
1
answer
383
views
Re-projecting shapefile in R that has class of character
I am trying to project a shapefile of the world that was downloaded from naturalearthdata.com
shp is a shapefile of the worlds landmasses that I downloaded. When I use the code class(shp)
R tells me ...
- 11
0
votes
1
answer
203
views
0
votes
1
answer
2k
views
Cannot coerce class to a data.frame
I'm using R to run a random forest to predict the distribution of sediment classes in a study area. I have a .csv of the locations where sediment has been sampled, and rasters of all my predictor ...
- 3
0
votes
1
answer
1k
views
Dataframe object is not callable
I have a dataset contains latitude, longitude and temp. I tried to draw a contour map of temp based on latitude and longitude on the world map. I need to mark the contour line intervals also in the ...
- 21
1
vote
0
answers
43
views
How can I let R recognize my mosaic as a data frame so I can use the ggplot2 package in R
I have various climate projections for different values such. I extracted the certain values I needed using the brick function. Afterwards I took the average using the mosaic function. I want to use ...
- 11
0
votes
1
answer
185
views
Exporting data frames in layout into unique PDF for each using ArcMap
I have an MXD with 2 data frames.
How can I export each Dataframe as a separate PDF?
- 1
2
votes
2
answers
324
views
QVariant error when converting DataFrame into attribute table using PyQGIS
I have a df which looks like that:
ID
Happy
0
Very
1
Little
I'm trying to convert it into an attribute table:
headers = [col for col in df.columns]
fieldlist = QgsFields()
fieldlist.append(...
- 187
0
votes
0
answers
86
views
Updating layer in corresponding data frame in single MXD in ArcPy
I have a shapefile and a layer file. In the shapefile, I am updating the last column using a .dbf file, which has numeric values. So, the last column of the shapefile will be updated five times and I ...
- 323
1
vote
0
answers
305
views
Extract time series from CFSV2 Google Earth Engine Python
I'm trying to export to a dataframe the time series of the CFS model for the maximum temperature since 2000 for any latitude/longitude, but I have a Time Out problem. So, I tried a for each year and ...
1
vote
1
answer
87
views
Iterating and updating through feature class fields based on DataFrame using ArcPy
I am updating mismatched data across two systems and have an Excel sheet that combines a consolidated data set. Unfortunately I do not have a reliable join field to relate this back to my GIS data.
I ...
- 1,349
3
votes
2
answers
2k
views
Appending DataFrame to existing layer in GeoPackage
I have scripts to download and extract two shapefiles every 24 hours and create a cleaned DataFrame. I want to append the DataFrame for each one to a specific layer in a gpkg. The only example I can ...
- 31
0
votes
0
answers
2k
views
ValueError: 'ITEM' is both an index level and a column label, which is ambiguous
I'm trying to process some data, with geopandas0.9.
Here is my code:
locations = select_polygons.groupby(class_col).apply(lambda x: \
sample_locations_from_polygon(x, sample_on_boundary='...
- 103
0
votes
1
answer
41
views
Exporting 3 layers together as JPEG using Data Driven Pages
I'm trying to use data driven pages to export JPEGs of features that share a common attribute.
E.g. I have two point layers, "beach" and "light". And a polyline that connects them, ...
1
vote
1
answer
1k
views
Placing multiple data frames in a single map layout in ArcGIS Pro
I am trying to prepare a layout for my study area by method showing country to state to city in ArcGIS Pro, but all the data frames are showing the same area and when I try to change the data, the ...
- 25
1
vote
1
answer
916
views
Transform Google Earth Engine script to Python with Landsat 8 temporal data
I am doing a study for my work and I need to adapt my Google Earth Engine script in Python, but I am encountering some problems.
Here is a Google Earth Engine script:
//Importing image and geometry:
...
2
votes
1
answer
701
views
Create one id variable for each dataframe in a list of dataframes with name of each dataframe
I have a list of dataframes. For each dataframe I want to create one new variable or column called uniqueid and I want this unique id to be the name of the dataframe from the list. I have tried the ...
- 463
-2
votes
1
answer
480
views
How to change column value by matching row value in data frame?
Say I do have the following table
| longitude | latitude | temperature | label |
|-----------|----------|-------------|-------|
| x | y | z | 1 |
| p | q | ...
- 11
1
vote
1
answer
274
views
Exporting data frame as PNG after adding Layer File using ArcPy in ArcMap
My question relates to the answer found at Exporting data frame as PNG in ModelBuilder using ArcMap
I've followed the steps in the answer provided by @PolyGeo, but my output PNG is just a blank image.
...
2
votes
2
answers
532
views
Getting names and numbers in specific vectors from a dataframe in a loop R
I have a huge DataFrame, in which I need to extract some information that generates filenames that I need to search in my working directory later, I also need the value in each cell of the pixel ...
- 189
2
votes
2
answers
623
views
Selecting attributes by coordinates from DataFrame in Python
I wonder how to return the right information needed from this df. Currently I get an empty return. I think the problem is my selection because the coordinates are correct and all variables are as well....
- 33
4
votes
1
answer
5k
views
Converting DataFrame to GeoDataFrame with Polygon [closed]
I would like to convert my DataFrame to GeoDataFrame, but every post is about points. I need to convert polygons. Coordinates are in df['geometry']. How can I do that?
My DataFrame is below:
I was ...
3
votes
1
answer
542
views
Can't Form DataFrame from Parallel Offset Output
I've been developing code to take a .csv with lat-long coords and convert them to LineStrings before creating parallel offsets for them. This has been working so far, but yesterday after clearing my ...
- 31
2
votes
0
answers
55
views
Not able to extract values from raster TIFF in EPSG:26912, but can in EPSG:4326?
I have an elevation file (.tif) in EPSG:4326 and point data for wildfire occurrence in the same projection. When I use this projection, I can use the following code to extract the elevation value, for ...
2
votes
1
answer
705
views
Extracting polygon information from KML file into DataFrame
I have KML file from downloaded https://data.gov.sg/dataset/electoral-boundary_2020. As you can see on the website, there are 31 sub-polygons and each of them has a label. I have loaded the KML on R.
...
- 121
3
votes
1
answer
3k
views
Converting DataFrame with geometry column into GeoDataFrame in Pandas
I have this DataFrame:
In [120]: a
Out[120]:
a b c
0 111 333 [POINT (0 0)]
1 222 444 [POINT (0 0)]
I am trying to convert with the next line, but it fails:
In [125]: b = ...
- 133
0
votes
1
answer
75
views
Restructure data.frame By Date Values in R [closed]
I have a data.frame in R shown below..
This data.frame summarizes counts by week for every year in a time series dataset.
I am now trying to rearrange this matrix such that the years (2001-2020) will ...
- 139
-1
votes
1
answer
27
views
What will be the coordinate system of base map layers added if the the coordinate of layer frame properties is MUTM in ArcGIS?
My coordinate frame is in MUTM that I have created. I have added base map layer and I want to know what coordinate system will it use.
1
vote
0
answers
197
views
Export to PNG produces wrong color background (but not for JPG)
I need to export a map as a PNG image, but when I do the background, which is supposed to be white, comes out gray. This also happens when I export it as a TIFF or EMF, but not as a JPG.
I have tried ...
- 23
0
votes
1
answer
608
views
Convert multiband GeoTIFF to dataframe using all bands (R, Python or QGIS) [closed]
I have a GeoTIFF file with 2 bands and I want to create a dataframe like this:
pixelID | band1Value | band2Value
I would like to do it in R, Python or QGIS.
As far as what I have searched, I could ...
- 171
2
votes
1
answer
2k
views
GeoPandas gdf.geometry.buffer for spatial join
In that part of the code I'm creating geodataframes (only point features) out of two CSV files. I want to merge all points from the two dataframes within a range of 150m. Therefore I create a buffer ...
- 31
1
vote
0
answers
632
views
List of sf-object into one sf-object
that's a really simple question but I am kind of stuck with it. I have a list with multiple sf-objects and I want to put all sf-objects (dataframe) under each other and build one final sf-object. How ...
- 645
2
votes
1
answer
105
views
Apply different symbology layers to different dataframes with arcpy mapping?
I have one shapefile, which I want to create a map of with 3 different data frames (showing three different attributes of the shapefile) on one map. I have 3 separate symbology layers files saved to ...
- 83
1
vote
1
answer
597
views
How to import raster from PostGIS into Python as dataframe
I am trying to import the raster from PostGIS into a raster for further analysis. I know that I should use psycopg2 to connect to DB, but I do not know how to query the raster from DB, and then ...
- 63
1
vote
1
answer
502
views
Adding timestamp to dataframe in Google Earth Engine Python API
I came across an example shared on YouTube by Madhu Mysore. Here is the link: https://www.youtube.com/watch?v=IGUYSeoeHhg&t=2105s.
I changed the code as I am not interested in regions at the ...
- 19
1
vote
1
answer
771
views
Removing labels from inset areas within main data frame
I have three inset maps (separate data frames) within my map. I want to not label the buildings within the inset map extent on the main data frame, but keep labels outside of the inset extent. If it ...
