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Importing geo data

Importing elements from Natural Earth

This should be primary data source for all map on country and province level.

Click IMPORT COMPONENT button on the bottom of the component tree. Draw the region rectangle for import on the map. In some cases your rectangle will cover entire world.

After selection import dialog will appear. Select your scale and data table and click Search for components. If you are getting to much result you can try tweak it by using importance scale combo.

Natural Earth data are licensed on Public Domain license, so they can be freely reused.

Importing elements from Open Street Maps

Open Street Maps is very valuable source of GIS data. Everything is licensed on Creative Commons license. Open Street Maps is exposing its data and it can be access with XAPI queries.

With ShareMap user can choose if he prefer to use wizard or write custom XAPI query.

Click IMPORT COMPONENT button on the bottom of the component tree. Draw the region rectangle for import on the map. The rectangle has to have reasonable size, because of limitation of import services.

After selecting rectangle Import dialog will appear. Select OSM Wizard in radio group at top.

You have to select category and objects from category - for example you can choose category rail and select elements: rail, light_rail and tram. Then you have to click. Download components. After components are downloaded you will get information about count of imported components. Click IMPORT button to add it to your map.

More advanced user can click CUSTOM XAPI QUERY radio button. Informations about XAPI and available tags tags you can find here and here.

When your XAPI query is ready click DOWNLOAD COMPONENTS. If your query is ok and servers returns valid response you will get information about number of components that will be added.

This step is very important - you should import so much data to make map usable, but not too much. In short words in most cases when import data from OSM you should set simplification parameter.

Click IMPORT COMPONENTS to add it to your map.

Importing elements from ShareMap.org geolibrary

In your map you can import content from others maps on ShareMap.org. You can also use GEO LIBRARY. Geo library contains data from multiple free datasets that can be useful during map creating. If you have any suggestions about data that can be added to Geo Library to hesitate to contact us. There is only one condition data should be licensed on free license. To import data from Geo Library you have to click Add from Library button in the lower right corner of the editor window. After that you can browse GEO LIBRARY spaces or enter your custom query to search entire ShareMap.org.

You can find more informations about Open Street Map queries here.

GPS traces files

Click Import from File and select your GPX file.

Shape simplification

Sometimes your imported data is too precise for your needs. In this case you have to use simplification tool. Select the newly imported container and then in in container properties box enter simplification factor. Click Apply as filter to preview the result. If result is OK for you, you can apply simplification permanently by clicking Apply as transformation - be careful, this operation cannot be canceled. You can find more information about simplification here. When you import data from OSM you can (and should) apply simplification at import stage.

What does simplification value really mean?

Simplification value is distance in m and km that will accepced as maximum distance from simplified and not simplified line.


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