Get Online Maps: Difference between revisions

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[[File:GetOnlineMapsDialog.png|thumb|Get Online Maps Dialog]]
[[File:GetOnlineMapsDialog.png|thumb|600 px|''Get Online Maps'' dialog.]]
Online maps are raster datasets that can contain imagery, elevation, or land use information. Online maps are imported as dynamic imagery—they will update when panning and zooming in or out of the Graphics Window. This requires that the XMS software have an active internet connection.


The '''Get Online Maps''' button allows you to select online data from a variety of different sources. Once online maps has been selected, the data resolution will be automatically adjusted based on your zoom parameters.  Online maps can only be viewed in plan view.
Online maps are accessed through the '''Get Online Maps''' [[File:Add Online Maps Icon.svg|16 px]] macro (in GMS and WMS) or through the ''File'' | '''Add Online Maps''' menu command (in SMS).


Online maps are raster datasets that can contain imagery, elevation, or land use information. If you have online maps in your program, you can right-click on each of the maps to convert them to static images that can be saved to your local hard drive. You can convert or interpolate online maps containing elevation data to various elevation formats.
Once the online maps command is activated, the ''Virtual Earth Map Locator'' dialog will appear, but only if no other dynamic images are in the project. In this dialog, the map location can be specified. See the section [[Import_from_Web#Virtual_Earth_Map_Locator|Virtual Earth Map Locator]] for more information on this dialog.


Note that online data sources are on external servers that we have no control over. The data may draw/export very slowly or become unavailable at any time. We have no control over this.
If a projection has not been set, or if the current projection is different than the selected map location, a warning dialog will appear asking for the projection to be set. The [[Projection_Dialogs#Display_Projection_Dialog|''Display Projection'']] dialog will then open. The projection of the map location will be entered as the default if available.


The '''Advanced''' button allows you to select from other data sources and to use other online data query functions that may not be fully supported.  In the ''Advanced'' dialog, the '''Add Sources From File''' button allows you to add new Web Map Service (WMS) sources from an external text file.
With the map location and projection set, the ''Get Online Maps'' dialog will appear. The ''Get Online Maps'' dialog allows selecting online data from a variety of different sources.  Once online maps has been selected, the data resolution will be automatically adjusted based on the zoom parameters.  Online maps can only be viewed in plan view.
 
Note that online data sources are on external servers that the XMS software has no control over.  The data may draw/export very slowly or become unavailable at any time.  The XMS software has no control over this.
<!--The '''Advanced''' button allows selecting from other data sources and to use other online data query functions that may not be fully supported.  In the ''Advanced'' dialog, the '''Add Sources From File''' button allows adding new Web Map Service (WMS) sources from an external text file.-->


More information about the various types of online data can be found by visiting the following links:
More information about the various types of online data can be found by visiting the following links:
 
<!--* [http://nationalmap.gov/elevation.html NED data &ndash; USGS]
{| class="wikitable"
* [https://lta.cr.usgs.gov/SRTM ASTER and SRTM data &ndash; USGS & NASA]
|-
* [http://landcover.usgs.gov/landcoverdata.php NLCD and CORINE (European) Land Cover data]-->
|
* [http://ned.usgs.gov/ NED data &ndash; USGS]
* [http://srtm.usgs.gov/ ASTER and SRTM data &ndash; USGS & NASA]
* [http://seamless.usgs.gov/nlcd.php NLCD and CORINE (European) Land Cover data]
* [http://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer World Imagery] [http://www.arcgis.com/home/item.html?id=10df2279f9684e4a9f6a7f08febac2a9 More Info]
* [http://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer World Imagery] [http://www.arcgis.com/home/item.html?id=10df2279f9684e4a9f6a7f08febac2a9 More Info]
* [http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer World Street Maps] [http://www.arcgis.com/home/item.html?id=3b93337983e9436f8db950e38a8629af More Info]
* [http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer World Street Maps] [http://www.arcgis.com/home/item.html?id=3b93337983e9436f8db950e38a8629af More Info]
* [http://services.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer World Topo Maps] [http://www.arcgis.com/home/item.html?id=30e5fe3149c34df1ba922e6f5bbf808f More Info]
* [http://services.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer World Topo Maps] [http://www.arcgis.com/home/item.html?id=30e5fe3149c34df1ba922e6f5bbf808f More Info]
* [http://developer.mapquest.com/web/products/open MapQuest OpenStreetMap Worldwide Street Maps]
<!--* [https://developer.mapquest.com/products MapQuest OpenStreetMap Worldwide Street Maps]-->
* [http://services.arcgisonline.com/ArcGIS/rest/services/USA_Topo_Maps/MapServer USA Topo Maps] [http://www.arcgis.com/home/item.html?id=99cd5fbd98934028802b4f797c4b1732 More Info]
* [http://services.arcgisonline.com/ArcGIS/rest/services/USA_Topo_Maps/MapServer USA Topo Maps] [http://www.arcgis.com/home/item.html?id=99cd5fbd98934028802b4f797c4b1732 More Info]
* Other data sources-Geologic data, land cover, etc. (use the advanced button)
<!--* Other data sources-Geologic data, land cover, etc. (use the advanced button)-->
|}
 
When online maps is available, right-click on each of the map items [[File:GIS Online Image Icon.svg|16 px]] in the Project Explorer and select '''Export''' to convert them to static images that can be saved to the local hard drive.  It is possible to convert or interpolate online maps containing elevation data to various elevation formats.


==Exporting to a File==
==Exporting to a File==
An online map can be exported to a file and loaded into the project. You may want to do this to save a local copy and not be dependent on internet access. Also, there may be more commands and options available with a local file, such as interpolation or conversion to other object types, than with online maps.
An online map can be exported to a file and loaded into the project. Do this if wanting to save a local copy and not be dependent on internet access. Two options exist for exporting:
* '''Export''' &ndash; This will export the online map as a raster file in TIF format. In doing this, the data will be resampled. See [[GIS_Conversion_and_Editing#Resampled_Raster|Resample Raster]] for more information.
* '''Export World File''' &ndash; Saves the world file data for the location. This will not include the image itself, only the projection information for a TIF file. A TIF file should be saved using the '''Export''' command.
With a static raster file there may be more commands and options available with a local file, such as interpolation or conversion to other object types, than with online maps.
==Advanced Options==
[[File:SelectOnlineSource.png|thumb|250 px|The ''Select Online Source''dialog]]
{{notice|1='''Please Note:''' Using the Advanced option requires very specific and detailed knowledge about the source data. If you need assistance with what to place in each field, you will need to contact the source data provider. Aquaveo is unable to provide any technical support beyond the documentation in this section.}}
Clicking the ''Advanced'' button in the ''Get Online Maps'' dialog will bring up the ''Select Online Source'' dialog. Here a list of available sources is shown. Sources can be added or edited through this dialog.
 
Options include:
* '''Duplicate Source''' &ndash; Creates a copy of the selected source in the list above.
* '''Remove Source''' &ndash; Deletes the selected source from the list above. Built-in sources cannot be removed.
* '''Add Sources from File''' &ndash; Brings up a browser where an online source file (*.csv) can be selected to add a source to the available source list.
* '''Add New Source''' &ndash; Brings up the ''Add New Source'' dialog.
* '''Edit Source''' &ndash; Brings up the ''Add New Source'' dialog which allows editing an existing source. Built-in sources cannot be edited.
 
[[File:AddNewSource.png|thumb|225 px|The ''Add New Source'' dialog]]
The ''Add New Source'' dialog is used when adding a new source and when editing an existing source. The dialog has the following options:
* ''Service Name'' &ndash; Allows entering or changing the name for the source.
* ''Category'' &ndash; Select the data source web service catagory. Can be Web Map Services (WMS), Web Feature Services (WFS), or Transverse Technologies (TTS).
* ''URL'' &ndash; Specifies the URL of the new source.
* ''Type''
* ''Layers to download'' &ndash; For sources containing layers, which layers to download can be specified here.
* ''Is SSL Safe?'' &ndash; Check this if the data source server is SSL safe.
* ''Minimum cell size'' &ndash; Sets a minimum cell size for data downloaded from the source. Data with cell sizes below this value will not be downloaded.
* ''Maximum cell size'' &ndash; Sets a maximum cell size for data downloaded from the source. Data with cell sizes above this value will not be downloaded.
* ''File abbreviation'' &ndash; Determines the file abbreviation that will be affixed to the file name to indicate the file was downloaded from the source.
* ''Image format'' &ndash; Determines the file format used for files downloaded from this source. The TIFF and PNG formats are available.
 
==Related Topics==
* [[GIS Conversion and Editing]]
* [[Data Sources]]




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[[Category:GIS]]
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Revision as of 22:14, 27 July 2020

Get Online Maps dialog.

Online maps are raster datasets that can contain imagery, elevation, or land use information. Online maps are imported as dynamic imagery—they will update when panning and zooming in or out of the Graphics Window. This requires that the XMS software have an active internet connection.

Online maps are accessed through the Get Online Maps Add Online Maps Icon.svg macro (in GMS and WMS) or through the File | Add Online Maps menu command (in SMS).

Once the online maps command is activated, the Virtual Earth Map Locator dialog will appear, but only if no other dynamic images are in the project. In this dialog, the map location can be specified. See the section Virtual Earth Map Locator for more information on this dialog.

If a projection has not been set, or if the current projection is different than the selected map location, a warning dialog will appear asking for the projection to be set. The Display Projection dialog will then open. The projection of the map location will be entered as the default if available.

With the map location and projection set, the Get Online Maps dialog will appear. The Get Online Maps dialog allows selecting online data from a variety of different sources. Once online maps has been selected, the data resolution will be automatically adjusted based on the zoom parameters. Online maps can only be viewed in plan view.

Note that online data sources are on external servers that the XMS software has no control over. The data may draw/export very slowly or become unavailable at any time. The XMS software has no control over this.

More information about the various types of online data can be found by visiting the following links:

When online maps is available, right-click on each of the map items GIS Online Image Icon.svg in the Project Explorer and select Export to convert them to static images that can be saved to the local hard drive. It is possible to convert or interpolate online maps containing elevation data to various elevation formats.

Exporting to a File

An online map can be exported to a file and loaded into the project. Do this if wanting to save a local copy and not be dependent on internet access. Two options exist for exporting:

  • Export – This will export the online map as a raster file in TIF format. In doing this, the data will be resampled. See Resample Raster for more information.
  • Export World File – Saves the world file data for the location. This will not include the image itself, only the projection information for a TIF file. A TIF file should be saved using the Export command.

With a static raster file there may be more commands and options available with a local file, such as interpolation or conversion to other object types, than with online maps.

Advanced Options

The Select Online Sourcedialog

Clicking the Advanced button in the Get Online Maps dialog will bring up the Select Online Source dialog. Here a list of available sources is shown. Sources can be added or edited through this dialog.

Options include:

  • Duplicate Source – Creates a copy of the selected source in the list above.
  • Remove Source – Deletes the selected source from the list above. Built-in sources cannot be removed.
  • Add Sources from File – Brings up a browser where an online source file (*.csv) can be selected to add a source to the available source list.
  • Add New Source – Brings up the Add New Source dialog.
  • Edit Source – Brings up the Add New Source dialog which allows editing an existing source. Built-in sources cannot be edited.
The Add New Source dialog

The Add New Source dialog is used when adding a new source and when editing an existing source. The dialog has the following options:

  • Service Name – Allows entering or changing the name for the source.
  • Category – Select the data source web service catagory. Can be Web Map Services (WMS), Web Feature Services (WFS), or Transverse Technologies (TTS).
  • URL – Specifies the URL of the new source.
  • Type
  • Layers to download – For sources containing layers, which layers to download can be specified here.
  • Is SSL Safe? – Check this if the data source server is SSL safe.
  • Minimum cell size – Sets a minimum cell size for data downloaded from the source. Data with cell sizes below this value will not be downloaded.
  • Maximum cell size – Sets a maximum cell size for data downloaded from the source. Data with cell sizes above this value will not be downloaded.
  • File abbreviation – Determines the file abbreviation that will be affixed to the file name to indicate the file was downloaded from the source.
  • Image format – Determines the file format used for files downloaded from this source. The TIFF and PNG formats are available.

Related Topics