GEOSCIENCE ATLAS:

ATLAS HELP


Select from the help topics below for guidance on how to use the various features of the Atlas:


Atlas Tutorial (overview of the Atlas layers and tools)



Navigating the map (Zoom in and out, Pan)


    Tools (Share Map, Draw Graphics, Spatial Search, Add Map Service, Download, Queries)

   Search (Location, Layers)

   Base Maps (Topographic, Scanned Topo, Outline Topo , Grey Topo, Grey Topo DEM)

   Legend

   Contents

   Measure (Point coordinates, Line, Polygon)

   Print (To Scale, Image, PDF, Legend)

   Bookmarks

   Help (Help, Contact, Natural Resources Website, Atlas Version)

 

Overview Map (Map location, Pan)


Link to other help files:

Frequently Asked Questions


List of Layers


Search and Query Examples



Navigating the map


There are several ways to zoom and pan around the map:

1.       Hold down the shift key and drag a box on the map to zoom in

2.       Hold Down Ctrl+Shift to zoom out

3.       Roll your mouse roller to zoom in/out

4.       Drag the zoom slider to zoom in/out

5.       Click the map and drag your mouse to pan the map, while continuing to hold the mouse button down. Release the button to stop panning.

6.       Click the shaded box in the overview map and drag it to a new location to quickly pan the map.

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   Tools - click on the Tool icon to roll down the list of tools; click on the icon again to roll up the list.


1.     Share Map

        Creates a URL of the viewer at the current map extent. You can copy and paste this URL into an email to share with clients and colleagues.

Internet Explorer has a limit to the size of a URL. It is possible to create a URL that exceeds this limit when there are many selected features.

 

2.     Draw Graphics 


        Point

           Click the Point icon, then to choose color and transparency options click on the small arrow next to the icon.  Click any location on the map to place a point symbol at that location.

        Line

           Click the Line icon, then to choose color and transparency options click on the small arrow next to the icon.   Click on the map where to start the line, hold and drag to draw line, release to finish.              

        Polyline

           Click the Polyline icon, then to choose color and transparency options click on the small arrow next to the icon.   Click on the map where to start the line, click again to add vertices, double-click to finish.             

        Polygon

           Click the Polygon icon, then to choose color and transparency options click on the small arrow next to the icon.   Click any number of points on the map to create a polygon with many vertices. Double-click the mouse to finish the polygon.

        Text

           Click the Text icon, then click on the small arrow next to the icon to bring up the text options: Type the desired text in the ‘free text’ box, choose the size, colour and transparency.  Click a location on the map where you would like the text to appear.

        Clear Drawing

           Click the Clear Drawing icon.  Select the item from the graphics list to remove and click the Clear Selected button to remove that object from the map, or select the Clear All button to remove all objects.

        Stop Drawing

           Click the Stop Drawing icon to indicate that you are finished adding lines, points and polygons to the map.  Click Close to close the Draw Graphics box.

 

3.   Spatial Search


Select which feature to query from the dropdown list. A spatial search can be performed on features in the map display using either Graphic selection or Current selection.

Graphic -This type of search is based on graphics that have been drawn on the map display using the Draw tool. Previously created graphics are listed in a dropdown list and can be selected for use. Any features that overlap this selected feature will be highlighted on the map, while the records will be returned in the Results window. Click the Add icon to the right of the dropdown list to create a new graphic.

Current results -This option bases a new search on any features overlapping a current selection. Once features have been returned in the results window,  another feature can be selected from the dropdown list . Any features that overlap the current selection will be highlighted and their results will populate the Results window.

Once the type of selection has been established, you have the option to select a buffer distance and select the unit of measurement. Click the OK button to run the query.

 

4.   Add Map Service


Click the Add Map Service tool to add, remove or reorder internal and/or external map services in the viewer. The dialog window will present the user with several tabs;  Add, Remove and Reorder.

 

Add -  Select the type of service required from the drop down; it will present AGS, WMS and GeoRSS as possible types. Type in the URL of the GIS server, WMS service or GeoRSS.  (There may be predefined URL's available in the dropdown.) Click ‘Get Services’.  A list of available map services will appear in the drop down list; choose which service to add and click the ‘Add Service’ button. When choosing the GeoRSS types it will allow you to choose from different colour symbols for your feeds.  The map service or the GeoRSS feed will display in the viewer and will be added to the lists of services in the contents window.

Remove – From the list of added map services in the drop down, choose which service you would like removed and click the ‘Remove Service’ button. The map service will be removed from both the viewer and the lists of services in the contents window.

Reorder – Highlight a map service from the list of currently displayed map services, click the up arrow to move the service upwards in the list, click the ‘Refresh Map’ button to change the draw order of the services. Click the down arrow to move the service downwards in the list, click the ‘Refresh Map’ button to change the draw order of the services.


5.   Download Data (Extract)


Click the Download Data tool to extract data from the layer of interest within the current window extents.  'Features' within the current window extents are downloaded, BUT for 'raster' images the whole image is downloaded in the chosen format.  Note: When downloading data from the Atlas, the data is no longer associated with the Atlas. The downloaded version of the data becomes a standalone database which is only considered current at the date and time of download. To receive the most up-to-date data, repeat the download process.  The projection of most of the downloaded data is latitude-longitude, based on the NAD27 datum (view the downloaded .prj file to check the projection).


6.   Attribute Query


Click the Attribute Query tool to search for data from the layer of interest.

Select which layer to query from the drop down list (the order matches the order in the Contents). 

Select the attribute (field) of interest.  

Select an operator (e.g. Equal To; Note that the 'Like' operator is for text string comparisons which is case sensitive).

Click on 'Get Sample Values' to get a drop down list of some, but not all, values, and select one of the values OR

Click on the round button and type a value in the empty box. Note that text string comparisons are case sensitive.

Click on 'Add to Query Expression'.  Use the brackets, AND, OR or NOT buttons to make more complex queries.  These cannot be edited in the query window.

Click Run Query button.

The tabular results will be listed in a Search Results pop-up window where the features can be zoomed to, any links to Geofiles etc. can be viewed or the data can be downloaded.


7.   Custom Queries


Click the Custom Queries tool to search for data using pre-prepared forms for a layer of interest.

Select which layer to query from the Custom Query drop down list. 

Fill in one or more fields in the form.  Note that text is NOT case sensitive, so names can be lower case.

Click the Run Custom Query button.

The tabular results will be listed in a Search Results pop-up window where the features can be zoomed to, any links to Geofiles etc. can be viewed or the data can be downloaded.

View the Custom Query Help link for more information and examples on custom queries.


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   Search - click on the Search icon to open the search box; click on the icon again to close it.

The search box can be used to find any item from all the layers in a group or an item from an individual map layer:

1.       Use the drop down list to select  Location, or the group or layer you want to search. 

2.       Enter the search text, then press enter or click the magnify glass icon to initiate the search.  Searching for locations is based on place names (e.g. cities, lakes) and is not case sensitive. Some place names may require province and country to be added in the search text box (e.g., st. john's, nl, canada).

3.       A search results window will display with one or more items listed. Click on the ‘Zoom’ option, to the left of the record, to zoom in to the result.

Information for any item/area on the map may be obtained by simply clicking on it. A search results window will display and more than one result may be returned. Click on Results to see the list of available items or select the map layer you want to view.

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   Base Maps


Click the Base Maps icon to choose a map to display under all other layers.  The base maps consist of:

Topographic - at the most detailed level contains all features except wetlands and vegetation, water has blue fill,
Scanned Topo - scans of the original paper topographic maps,
Outline Topo - same features as Topographic but water has no fill, all features are grey scale,
Grey Topo - consists of only water features with grey fill,
Grey Topo DEM - consists of grey digital elevation model, water has white fill
.

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   Legend


Click the Legend icon to see a legend of the symbols currently used on the map and their meaning.

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   Contents


Click the Contents icon to open the Contents window to control what layers are displayed on the map. Turn on or off a group, or a layer by clicking its checkbox.  See the List of Layers for a brief description of all available layers.

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   Measure


Click the Measure icon to open the measure window. The following options are available:

        Point

           Click the Point icon, then click any point on the map to get its coordinates in  UTM (Zone 21) and Longitude/Latitude.  These are based on the NAD83 datum, as opposed to the coordinates at the bottom of the map window, which are based on NAD27.

        Line

           Click the line icon and then click the arrow next to the line icon to choose a unit of measurement. On the map click and drag along the map to create a measured line. The length of the line displays in the unit of measurement chosen. The default unit is Kilometres.

        Polyline

           Click the polyline option and then click the arrow next to the polyline icon to choose a unit of measurement. Click any number of points on the map to create a line with many vertices. Double-click to finish the distance being measured. The length of the polyline displays in the unit of measurement chosen. The default unit is Kilometres.

        Polygon

           Click the polygon option and then click the arrow next to the polygon icon to choose a unit of measurement. Click any number of points on the map to create a polygon with many vertices. Double-click to finish the area being measured. The area and perimeter measurement will be displayed in the units chosen. The default units are Kilometres and Square Kilometres.

        Clear Drawing

           Click the Clear Drawing icon to remove all points, lines, polylines and polygons from the map.

        Stop Drawing

           Click the Stop Drawing icon to indicate that you are finished measuring.  Note: closing the Measure window will also clear all drawings.

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   Print


Click the Print icon to open another window with several printing options.  The image displayed is close to the current map extent; only active layers will be displayed.         

       Custom Print (left side)

        Fill in the Map Title, choose a Map Layout from the drop down list, select the default map scale or enter a new one and click the Create Map button.  Once the custom pdf map has been processed click on Open PDF to view the map and print.  Note that scales larger than the default one will display the centre of the map at the scale entered.

       Quick Print (right side)

1.       Print Image - A window will display the network printer options along with a preview of the image to be printed. This will print the map ‘as is’, with no title or north arrow but with a scale bar. 

2.    Save Image - The image will open in a new window, allowing the user to save it as a png or bmp file, with no title, north arrow or scale bar.  To copy  this image to another program, such as MS Word or MS PowerPoint, right click on the preview image and click 'Copy Image', then in the other program right click and paste the image.

3.       Save Image as PDF - The image will open in a new window tab as a PDF document, which can be saved locally.  There is no title, north arrow or scale bar.

4.       Print Legend - The legend will open in a new window tab, listing only visible layers. Click the print button to bring up the network printer options.

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   Bookmarks


Click the Bookmarks icon to see the drop down menu of pre-defined Bookmarks; and click again to close.  Bookmarks are a collection of direct links to predefined map extents and the option to create your own. Click on a bookmark from the list and the map will zoom to the extents of that bookmark. Three bookmarks are pre-defined: Labrador, Newfoundland and Initial Extents (all of Newfoundland & Labrador). 

To add new bookmarks, click Add Bookmark from the drop down menu, provide a name and it will create a bookmark of the current extent of the map viewer.  All bookmark names can be edited and removed.

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   Help


1.       Atlas Help - This link is to this help file.

2.     Contact - This link provides a NL Geological Survey email address for further help.

3.     Home - This links out to the Newfoundland and Labrador Dept. of Natural Resources website.

4.    About Atlas - This link provides the version number of the present Atlas and a link to the Tamarack Geographic Technologies website.

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Overview Map


1.       Click the small arrow at the bottom right of the map viewer to open and close the overview map.  The overview map provides the current extents in a larger map view to graphically display the map viewer location.

2.       Click the shaded box, which indicates the current map extent, and drag it to a new location to quickly pan the map.  Release the button to stop panning.

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Link to other help files:

Frequently Asked Questions


List of Layers


Search and Query

 

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