Questions tagged [chart]

A chart is a graphical display of data.

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21 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 ...
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1answer
32 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 ...
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1answer
27 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, ...
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21 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: '...
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14 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, ...
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23 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?
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2answers
96 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.
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28 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 ...
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1answer
41 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: ...
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1answer
27 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 ...
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28 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 ...
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1answer
71 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 ...
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16 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 ...
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48 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. ...
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1answer
47 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(...
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41 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 ...
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39 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 ...
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89 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 ...
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1answer
29 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 ...
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1answer
222 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? ...
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39 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/...
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1answer
94 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 ...
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1answer
132 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....
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1answer
226 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 ...
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1answer
124 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 ...
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1answer
83 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 ...
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23 views

Plot/Chart a related table in a pop up with ArcGIS Pro

I would like to plot a time series related to a line feature in a pop up. So when I click on a line, the associated time series should be plotted in a pop-up. Example: My line feature with only 1 ...
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1answer
474 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 ...
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1answer
82 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 ...
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1answer
238 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). ...
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1answer
195 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 ...
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1answer
3k 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, ...
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1answer
273 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(): ...
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1answer
624 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
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1answer
830 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('...
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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 ...
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1answer
283 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 ...
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1answer
148 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 ...
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1answer
643 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....
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1answer
199 views

Trying to create pie charts from points in QGIS show up empty circles

I'm using QGIS 1.8. I have a csv file with a list of nature reserves and their coordinates, and there are 10 columns such as 'birdwatching', 'scenery', etc with either 'yes' or 'no' under each for ...
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1answer
271 views

DOY chart in Google Earth Engine

With the following code I am trying to produce a NDVI graph with the days of the year on the x axis (based on this example, 2nd graph). var modisNDVI = ee.ImageCollection ('MODIS/MCD43A4_006_NDVI'); ...
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0answers
185 views

How to make bar charts with values in a pop up windows in a web map using QGIS?

I'm an amateur of QGIS. I've set up a map with a bar chart overlay. However, there are some charts overlaying each other. So I would like to create a map which when people click / however an area on ...
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0answers
528 views

Histogram chart of categorical attributes in QGIS

Using mmqgis I calculated the hub distance from source points to destinations but I would like to add histograms or similar diagrams to show the hub characteristics of the hub members (count of Child ...
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1answer
1k views

Moving Pie Chart in QGIS and creating leader line

I'm using QGIS 2.18.3 (Las Palmas). I have created pie charts for a layer in QGIS and in order to be able to move the pie charts around i processed the centroids of my polygons. By moving the (...
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1answer
1k views

Adding bar charts to maps in ArcGIS Pro?

When it comes to Symbology, is there a way of showing bar charts on the maps or at least in a layout in ArcGIS Pro? This was possible in ArcMap and so I am just wondering if this is still a feasible ...
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1answer
492 views

Esri Cedar.js (based on D3.js)

Does anyone have experience with Esri's js charting library called cedar.js? It is apparently based on D3. I may be using it for work, but wondering if there are any pitfalls I should know about vs ...
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0answers
387 views

Move overlapping pie charts in QGIS [duplicate]

I'm referring to a question I found here (How can I move diagrams?) about pie charts in QGIS. I too would like to move some pie charts because they are overlapping each other. I tried to follow the ...
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2answers
364 views

Moving chart to top of pop-up window in ArcGIS Online?

Is it possible to move a chart/graph to the top of the pop-up window in ArcGIS Online via its GUI? I have numerous fields to display and it works best if the chart is displayed first. Just the ...
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1answer
2k views

How to move polygon pie charts symbols in ArcGIS?

I used pie charts in my map, but they don't appear in the desired position. Instead, they all appear in the exact middle of polygons. The charts were created via symbology -> charts -> pie option I ...
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0answers
28 views

Single pie chart out of set won't render QGIS

I've joined a CSV with a shapefile to demonstrate boardings/alightings at specific transit stops, and was able to successfully generate a pie chart for all but one of the points via the Diagrams tool. ...