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Questions tagged [chart]

A chart is a graphical display of data.

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2
votes
1answer
19 views

Google Earth Engine chart error: No features contain non-null values of “year” [closed]

I'm trying to plot a chart from a collection I have created. While the data from this collection maps fine, I can't seem to produce a chart for it. Here is the code: var l5_coll = ee.ImageCollection('...
0
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1answer
40 views

Spectral signatures chart in Google Earth Engine

I have been reading the documentation and some related questions online, but I cannot seem to make it work. I use Google Earth Engine to access an old Landsat 5 image, and classify later on. I want ...
-1
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0answers
16 views

How to add XY axis in the bar chart (symbolize) of ArcGIS?

I want to show the Y axis scale for the bar chart which plotted in ArcGIS. How to do it?
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0answers
15 views

Label Symbology Pie Charts/Multiple Bar Graph

I created bar graph and pie charts on every single feature on the basis of their values stored in attribute table but I can't label/plot the values on these graph/on the top of graphs. Currently this ...
3
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0answers
31 views

How to fix “Parallel Arrays Must Have Same Length” error for chart

I'm using a transect with two types of data to collect temperature and aerosol index on Google Earth Engine. I want to print a line chart using multiple dates, but I keep getting two error listings: ...
2
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0answers
25 views

Change the colors of the pie chart in compouse (plot) in QGIS 3.10

When using the new plot command available in QGIS 3.10 for compouse pie chart generation, I didn't find any option to change colors. Is there any way to choose colors?
1
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1answer
34 views

What are ui.Chart.image.doySeriesByRegion Arguments?

The function ui.Chart.image.doySeriesByRegion has been used on Google Earth Engine document, but it is not clear what are the arguments. e.g. from the page: var series3 = ui.Chart.image....
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0answers
58 views

Scatter plot of two columns for a FeatureCollection in Google Earth Engine?

I have some SNPP-FIRMS data in a FeatureCollection format. I would like to make a scatter chart of two of its columns (FRP Value, and Date). I tried but it did not give me a correct chart which does ...
0
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0answers
84 views

Get data from GeoJSON to create chart within pop-up

I'm working on getting a pie chart to display within a pop-up on a Leaflet map, visualizing the data from the GeoJSON within the pie chart. mygeojson.on('popupopen', function (e) { var data = {...
1
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0answers
34 views

QGIS Pie chart labels from column names

I am trying to get the proper labels for pie charts on my map. I want to use the column names of the table (.csv file) that is used for the pie chart as labels for the pie chart on the map. The column ...
1
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0answers
19 views

Making chart with related table using ArcGIS Pro

I have a feature class with some locations of drills. I also have a table with data how deep the drill went and some more technical data in it. I used relate on the feature class to connect the ...
1
vote
1answer
97 views

Set bar colors on a Google Earth Engine chart

I am trying to define a set of colours by month on a ui.Chart.image.series, however, after adding the .style line, no changes are made. I would like to have a different bar color for each month, the ...
0
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0answers
50 views

Exporting Ui.chart in Google Earth Engine?

I have a project where the user press on a district and then the app shows the temperature a s time series chart. I want to optimize all that calculation and save each chart instead of making the ...
1
vote
1answer
52 views

CSV export date format in Earth Engine

When exporting a chart to CSV is there a way to configure the date to day month year (dd-mm-yyyy) format as it is difficult to convert the date in Excel for graphing? Sample of export: when using ...
2
votes
1answer
44 views

NDVI chart of sampled points

I'm working with Sentinel 2 satellite and I have sampled on the map 4 blue points indicating an irrigated areas, and other 4 red points for non-irrigated ones. Then, I have considered 4 collections, ...
1
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0answers
59 views

Chart - trendlines - slope - NDVI - visibleInLegend: true - GEE

I am using the following code in GEE to calculate the trend line: ndviChart.setOptions({ title: 'NDVI (Sentinel 2)', vAxis: {title: 'NDVI'}, trendlines: {type: 'exponential', 0: {color: '...
0
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0answers
41 views

Convert sounding depths from NOAA S-57 ENC to GeoTIFF

I want to rasterize an ENC I downloaded from NOAA (https://www.charts.noaa.gov/InteractiveCatalog/nrnc.shtml) in order to have a XYZ grid of sounding depths. I should think this is an easy process, ...
0
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0answers
26 views

Placing charts in layout using ArcGIS Pro?

I met a weird problem, I created a bar chart without any problems,but when I layout it,then it can only show 1 item about bar chart like below. Any ideas about what I should do?
0
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2answers
104 views

Source for regularly updated ENCs?

Is there a reliable source for Electronic Navigation Charts, where they get updated regularly? I am able to find for American waters on the NOAA website, but not for other regions.
0
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0answers
38 views

EVI Trend Analysis Chart with line of best fit and monthly data

I'm trying to create an EVI trend analysis chart for a region. I would like to include a line of best fit (least squares) as well as to select dates by month so I can increase the timeframe over which ...
0
votes
1answer
83 views

GEE Change the number of pixels on chart

I'm trying to create a time series chart that will tell me that mean precipitation for a given imageCollection, but my polygon is too big and I get the next error message: "Error generating chart: ...
0
votes
1answer
35 views

How to keep native spatial resolution while making a chart?

I have difficulties on producing chart in native spatial resolution. Please, look at the below script. The script allows to transform hourly GSMaP data into daily data and extract the values for given ...
1
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0answers
54 views

How to make piechart with YSLD in Geoserver style

It is possible to make piechart style in Geoserver WMS using XML SLD. For this adding chart extension is required. Now, is it possible to make such piechart with YSLD ? Additional info: My ...
2
votes
1answer
125 views

Time series analysis of NDVI

I want to create a chart of annual NDVI for a specific region. The output should be one NDVI value for that region for each year. I tried the following code and so far was able to get an image ...
1
vote
0answers
20 views

Error generating chart because computed image is too large

I want to export a graph of type ui.chart.image.series in the GEE in CSV format. This graphic is built into the browser after two different collections of images (one I named "Collection" and the ...
2
votes
0answers
60 views

Charting Normalized Difference of Image Collection?

I would like to get the normalized difference of each image within an image collection (In this case Sentinel-2) for a specific polygon/geometry and then chart the values calculated for each image. ...
0
votes
1answer
103 views

Export NDVI values from chart as JSON in Google Earth Engine

After filter OLI8 for a small area var collectionFilter = ee.ImageCollection('LANDSAT/LC08/C01/T1_RT_TOA') .filterBounds(geometry) .filterMetadata('CLOUD_COVER','less_than',4) .map(app); print(...
1
vote
0answers
116 views

Geoserver SLD: How to get CENTROID of result of INTERSECTION?

In my GeoServer SLD I need to place a symbol (particularly a piechart) exactly on Centroid of the result of Intersection of 2 geometry: geom field from my PostGIS table AND environment variable ...
0
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0answers
69 views

Line chart Chart.js for interactive map

I am working on a webmapping application with interactive data from maps and charts associated in templates, built with Chart.js. The template (mustache) is linked to a shapefile map layer containing ...
0
votes
0answers
166 views

How to plot elevation charts from a GPX file that has elevation data

Is there a service or package that converts a GPX file into an elevation chart? I need either a CLI, a Web API, or a library/other software that could be wrapped up as a small service. The GPX ...
0
votes
1answer
44 views

Normalize XLabel on NDVI Index chart in Google Earth Engine

I'm using the "ui.Chart.Image.Regions" type to produce three graphics for three different SENTINEL-2 images, with EVI index values. I would like to normalize the horizontal label (the X label) so ...
2
votes
1answer
386 views

Create a line chart from a dictionary of values in google earth engine

I am currently trying to create a line chart for each land-cover type across three bands I selected from MODIS. Problem is most of the ui.Chart functions require a feature or an image. Please help? ...
1
vote
0answers
50 views

Bar Chart Legend

I am trying to add legend to a map with bar charts which would be meaningful. The default legend doesn't explain the size of bars on the map. I have tried this one: https://www.esri.com/arcgis-blog/...
1
vote
1answer
185 views

How does ee.Reducer.median() differ from just ee.ImageCollection.median() - Issues with a chart?

I am trying to create a chart that displays an image series from an Image Collection and there are two things that I do not understand: In the first part of the code that you will see below, I do not ...
2
votes
1answer
218 views

Unrecognized argument type to convert to a FeatureCollection:

I am unable to chart a histogram for my region for each image in an image collection. // Create clipping function var clipper = function(image){ return image.clip(geometry); }; var modis = ee....
2
votes
1answer
387 views

Values on top of each bar of a histogram in QGIS

Is it possible to show the values on top of each bar of a histogram created with QGIS? (I am using QGIS 2.18) I know this post [Is it possible to label bar charts? addressed a similar question years ...
1
vote
1answer
152 views

Reducing hourly rainfall data to monthly data for particular period of time and making a timeseries chart

I am working with GSMaP image collection (hourly rainfall data) in Google Earth Engine. I would like to make a script which is calculating and making a chart of sum rainfall in particular location ...
0
votes
1answer
126 views

Reducing hourly data to daily data and making a timeseries chart

I'm using GSMaP image collection in Google Earth Engine. Below you can find a script which helps to reduce hourly data to daily data and extract in point scale. By this using this script I would like ...
2
votes
1answer
672 views

Data smoothing of Sentinel-2 NDVI time series chart in Google Earth Engine?

I am exploring Sentinel-2 time-series NDVI with Google Earth Engine. In another post I learned how to plot a NDVI time series chart. I know that there are many smoothing methods for reducing NDVI ...
2
votes
1answer
99 views

Chart JS chart not rendering in ArcGIS popup when using navigation arrows

I'm putting a chart in the popup of my points. On the initial click, the popups display the chart and if I use the forward navigation arrow on the popup, the next chart renders. However, if I use the ...
1
vote
1answer
380 views

Wrong with adding time series in the same chart in Google Earth Engine

Recently I've been trying to print time series for different regions and show them in the same plot. Everything goes fine if I exclude the 4th region into the time series (1-3 time series are fine). ...
0
votes
1answer
356 views

Plot areas by class in a polygon with Google Earth Engine

I would like to plot the number of pixels or the area for each class contained in a polygon (shape of a country). I have found the ui.Chart.image.byClass function but I don't understand how to use it ...
4
votes
1answer
4k views

Creating Sentinel-2 NDVI time series chart in Google Earth Engine?

I am exploring Sentinel-2 time-series NDVI with Google Earth Engine. In another post (here) I calculated and exported NDVI values from Sentinel-2. Now I would like to create a NDVI time series chart, ...
0
votes
1answer
390 views

Chart Series By Region in Google Earth Engine?

I've wrote a code for modis ndvi timeseries(code below). But it returns error in chart creating (ui.Chart.image.seriesByRegion) : Error generating chart: Invalid argument specified for ee.Number(): ...
2
votes
1answer
668 views

Displaying pie charts in web map created using QGIS?

I have created a web map to show some sales information using QGIS with Leaflet library. Is there a way to show pie charts in the same web map as a separate layer? Although pie charts are visible in ...
2
votes
1answer
1k views

Google earth engine chart error: No features contain non-null values of “system:time_start”

I'm trying to plot a chart froma collection I have created. While the data from this collection maps fine, I can't seem to produce a chart for it. var sstMonthly = temporalCollection(sst, ee.Date('...
1
vote
1answer
30 views

bar charts on MapServer are not plotted depending on the zoom level

I have a problem with bar charts on mapserver. At first glance the charts are perfectly plotted and all is okay. But depending on the zoom level a few charts are not plotted which are plotted on other ...
1
vote
1answer
319 views

NDWI and Cloud Pixel count

I am trying to add the (amount of pixels of) NDWI and Clouds as bands to my image collection. The NDWI works out, but I get stuck when adding the Clouds. The error refers to an incompatible number of ...
5
votes
1answer
180 views

Chart of cloud cover over time

I am trying to create a graph with the cloud cover over time, per year. The following code gives me a graph, but I don't manage to get the dates on the x-axis line up chronological. Am I doing ...
1
vote
1answer
911 views

Change the label of the ui.Chart.image.seriesByRegion in Google Earth Engine

I would like to change the label of the chart in Google Earth Engine. I had the code: var image= ee.FeatureCollection('ft:1OXpMKiwvIBC__iYcgjyW23A2oMr89IQlC3cLqk3q') .filter(ee.Filter.or(ee....