For Collect Earth, there is an example project,Plantations in Brazil,using polygons instead of points as the sample data. How can I create a custom project using polygons as the sample data?

Many thanks!


asked 23 May '16, 16:41

yelena's gravatar image

accept rate: 0%

Hello again,

I have created a new test survey showcasing the polygon functionality.

This is a basic suvey that just has a dummy yes/no question. I have removed the elevation,slope and aspect attributes that come as default when creating a Collect Earth survey. Then I have added a Text attribute called "polygon" and I have marked it as coming "From CSV" on the Collect Earth options of the Survey Designer.

You can import this survey into your Collect Survey Designer using this file ( Collect file), you can also test the Collect Earth Project generated by the survey ( CEP file ).

Basically, I have generated a KML file using Google Earth, by drawing polygons over some areas in Uruguay, adding these polygons to a folder (see in the image the Polygons folder) and then saving the folder as a KML file. I have then uploaded the KML to a Google Drive Fusion table, just so that the polygons are easier to download as a CSV file . Fusion table link.

As you see in the CSV file with the plot/polygon information, the latitude/longitude are set to zero, even though we don't really need these coordinates of the center of the plot (we are not using plots anyway) they need to be there!

You could clone this project (by importing the .collect file in you Collect version and then cloning it or just modifying it.

See this video on how to import and clone : IMPORTING SURVEY VIDEO

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answered 31 May '16, 10:42

collectearth's gravatar image

collectearth ♦
accept rate: 16%

Dear Yelena,

The best way to do this si to follow the pattern of the plantations example.

If you open the file ( LINK ) using winzip you will notice that there is an attribute called "geometry" that is marked as a "From CSV" kind os attribute.

So add an attribute called "geometry" to your survey and mark it as "From CSV".

In the CSV file with the plot locations, you actually don't need to set any values for latitude and longitude, but the columns NEED TO BE THERE , so just use zeroes (0) as values.

This is how the CSV file for plantations look :


So as you see the geometry attribute is there as one of the columns.

The geometry values need to be KML polygons. In order to create KML polygons you canuse QGis to transform shapes to KML and then upload it to a Fusion Table so that you get the polygon values as a CSV file. You can also use shpescape.com to upload a shapefile to a fusion table.

Let me know if you need more help!

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answered 25 May '16, 14:11

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collectearth ♦
accept rate: 16%

edited 01 Jun '16, 08:58

Hola estimados, Soy Francisco Lillo, estoy tratando de incorporar los poligonos a las encuestas, pero aun no encuentro en donde incorporar las geometrías.

Agradecería si pudieses especificar un poco mas sobre en donde se cargan.

Saludos cordiales desde Chile.

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answered 30 May '16, 23:14

Francisco_Lillo's gravatar image

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We have already conducted the data collection for plots in Collect Earth and would like to use the whole plot for training of Sentinel 2 (instead of the center point). It seems the instructions above are valid only if the polygon geometry field is included in Collect Earth originally. Any way to do it aposteriori?

Many thanks!


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answered 08 Feb, 14:36

flandsberg's gravatar image

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question asked: 23 May '16, 16:41

question was seen: 2,666 times

last updated: 08 Feb, 14:36