Walk-through (sample survey) 16


Following steps in this article you will create sample environmental survey from scratch. The whole idea is to automatically display a screen of preset drop-down lists when button ‘Add Point’ is pressed:

1. Survey purpose:

The purpose of the survey is to gather the trees distribution in public park including the height of the trees.

We need also to get at least one picture for each asset.

 

2. Creating set of attributes 

To create new set of attributes please open the navigation drawer and choose ‘Manage Attributes’ option, then press the ‘Add’ icon in the top right corner:

Create Attribute Set

Create Attribute Set

 

Screenshot_2014-11-08-13-09-43

 

 

To add new fields ‘Species’ and ‘Height’ we need to edit the attribute properties. Please choose the name of recently added item and then click the ‘Pencil’ icon from the context menu.

 

Note: Field is like a category for the set of values e.g. in our example we need to create 2 fields:

  • species (set of trees species growing in our test area)
  • height (several hight ranges we want to register)

To create field species  please press the + (Add) button, provide the name in our case ‘species‘ and press the button ‘+’ (Add) ones more to add a value:

Add Field

Add Field

Adding values to Field

Adding values to Field

Please add few species to the attribute – defined values will be then displayed within a drop down list when ‘Add Point’ button is pressed.

Field values

Field values

Please get back to ‘Edit project’ screen and add new attribute called high:

 

Height Field

Height Field

Field’s values can be also imported from the text file, please follow steps in this artice to get the values imported: http://mapit-gis.com/import-values 

Import Field values from a text file

Import Field values from a text file

We can also add so called ‘Scalar field’ it will be display as a free text or Yes/No spinner on the ‘Add feature’ screen.

Adding scalar field

Adding scalar field

The ‘text field’ can also have a default value. This value will be set automatically when ‘Add feature’ button is pressed.

Scalar Field  - Default value

Scalar Field – Default value

At the end of the process the ‘Edit Attribute’ screen should look as below:

 

Attribute Set with 3 fields

Attribute Set with 3 fields

 

At this point the attribute set is ready to use. To start the survey we need to create the survey layer now and set the default attribute set.

3. Creating survey layer

To add new layer and use it to collect the survey information please go to ‘ Layers’ Management’ and press ‘Add Layer’ button.

When setting a layer name it’s highly recommended to not use special characters like: / \ ? ‘ ; : ” | . , ^.

Layer name is being used to create e.g pictures’ sub-folders in MapIt->Pictures and these special characters may cause problems on certain devices. Similarly the layer name is being used to name the file during the export operation and some special characters may cause problems as well. The advice is to use alpha-numeric strings with spaces, dashes or underscores as delimiters.

Set the default attribute set – if you leave it as ‘None’ you will be able to create points containing only name and description.

When adding new layer you can also set the new layer as active or choose a field for labels when the checkbox ‘Show labels’ is checked.

You can also choose color for new markers or lines or set outline color and fill for polygon geometry type.

 

Add New Layer

Add New Layer

Some Layer properties can be changed later, however layer name, attribute set and geometry type can be set only during create layer operation.

Edit layer - select field for label

Edit layer – select field for label

 

4. Collecting the data

When there is an active layer each time you press the ‘Add Point’ button when collecting the data you will see screen containing dropdown lists for preset attributes.

Add Feature Screen

Add Feature Screen

 

You can add one or more pictures before saving the point (Pictures will be saved to SD card->MapIt->Pictures folder)

Screenshot_2014-11-08-13-15-16

 

4. Export your survey

When the survey is finished you can export your data to CSV, KML or GeoJSON format – exported data will be saved to SDCard and alternatively can be shared using number of standard ways including email, gdrive and skype.

 

Screenshot_2014-11-08-13-17-09

Screenshot_2014-11-08-13-17-22


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16 thoughts on “Walk-through (sample survey)

  • David Knowles

    Sir, when I go to export layers I go to manage layers, select layer to export, then select the place to export to, but when i choose tge file format for export (kml, geo json, etc) I get a message saying sorry that Mapit has quit working. Tried many times with same results and cannot export my data. Some help would be much appreciated.

    Thanks,
    David

    • osedok Post author

      Hi David, can you send me an email – I will try to resolve your problem, but need to discuss it in more details. I would appreciate if you can share your database (backup management) with steps how to get to the crash.

  • Benjamin Grahn

    Hi! I wonder if there is any plans to extend the possible settings of coordinate systems, and export files? I find MapIt Pro easy to use and suitable for smaller archaeological surveys but find it problematic to use because it doesn’t fit with the standard coordinate system in Sweden (Sweref 99) and it would been great if it was possible to export into shp-files.

    • osedok Post author

      Hi Benjamin,
      I will have a look at Sweref99 and see if I can add it in the near future, however it is easy enough to export the data to ArcJSON for direct import using geoprocessing tool to ArcMap, or to geoJSON for qGIS and do necessary coordinates conversion using desktop software.
      You can also use http://ogre.adc4gis.com to convert geoJSON to SHP if you need to work with this file types.

  • Caine Richards

    The program is very good except for the fact that I can export the map to any other program! Is there a program for word I can use and Google maps is rubbish and a screen shot is not big enough.

    • osedok Post author

      Hi Caine, I belive the resolution of the screenshot vary from device to device. The screen shot option was added only as some users needed that function to be able to quickly share whatever they had on the screen, however is not a main MapIt function. If you need high quality printing you probably need to export your data to formats like geoJSON, KML etc. end get it post processed in a PC environment like ArcMap or qGIS and do better quality printing from there.

    • osedok Post author

      Only addresses available in OpenStreetmap Nominatim are supported. The tool generally allow to search for places and coordinates in lat,lon format rather than particular addresses.