Shapefiles define the way points, lines, and polygons are stored and displayed. Once a shapefile has been created, you can digitize features that belong to that shapefile and edit individual feature attributes.
Tapping My Data > My Shapefiles displays a list of shapefiles on your mobile device. Tapping a shapefile name in this list displays its shapefile information.
You can turn the display of a shapefile on or off by tapping the switch to the right of its name. Turning files off reduces map clutter and may make features easier to select.
To create a new shapefile tap Edit, scroll down the list of shapefiles, and tap add new.... New shapefiles are created at the top of the list.
The position of each shapefile in the list controls its drawing order on the map. To change shapefile drawing order, tap Edit and use the Drag icon to the right of the shapefile name to move it to a new position.
Jump to: Attribute Definition | Creating a New Shapefile
Tapping My Data > My Shapefiles and selecting a shapefile displays the statistics, drawing controls, and attribute definition for the selected shapefile.
Show Shapefile selects this shapefile and centers it on the map
Feature Count displays the number of features belonging to this shapefile in your data.
Selectable controls whether or not the shapefile can be selected on the map.
Feature Color specifies a color to draw this shapefile on the map if the shapefile does not have a legend.
Label Color (GISRoam Pro) determines the color of the text used to display labels on each feature.
Show Labels (GISRoam Pro) displays the value of the Display Attr on points, polygons, or lines in the associated shapefile.
Show Labels (non-Pro) displays the value of the Display Attr on points or polygons (but not lines) in the associated shapefile.
Show Label Background (GISRoam Pro) controls the display of a rectangular background behind label text.
Drawing Label Scale (GISRoam Pro) defines the map scale range in which feature labels are displayed. Labels are turned off if the map is zoomed out beyond the maximum value.
Display Attr selects an attribute value to be displayed along with the results of a Search. If Show Labels is enabled, the display attribute of each feature is also drawn on top of that feature on the map.
Attributes opens shapefile attributes for modification.
Draw by Map Scale toggles the Drawing Map Scale on and off.
Drawing Map Scale defines the range in which features in this shapefile are displayed when Draw by Map Scale is turned on. Features are hidden when the map is zoomed out beyond the maximum value.
Line Feature Attributes (GISRoam Pro only):
Line Width controls the width of line features. In polygons, controls the width of the outline around each polygon in the shapefile.
Line Style controls the drawing style used for line features. Line styles are drawn using a combination of black plus the specified Feature Color and are more visible if the shapefile's Feature Color contrasts well with black.
Line Optimization may be turned on to improve the drawing performance of lines.
Polygon Feature Attributes (GISRoam Pro only):
Fill Polys turns on the polygon Fill Style for polygons in this shapefile.
Fill Style selects the style (Solid, Vertical, Horizontal, etc.) used to fill polygons on the map when Fill Polys is turned on. The color of the fill is determined by Feature Color.
Line Width controls the width of the outline around each polygon on the map.
Border Style controls the drawing style used to outline polygons. Border styles are drawn using a combination of black plus the specified Feature Color and are more visible if the shapefile's Feature Color contrasts well with black.
Point Feature Attributes (GISRoam Pro only):
Point Style selects an icon (Circle, Hexagon, Custom, etc.) to represent point features in this shapefile. Selecting Custom point style lets you pick a standard image file (preferably .png format) to serve as the point feature icon. New custom point style images must be added to GISRoam manually via iTunes. You cannot "package" icon images with shapefiles and imagery using LocalConnect. However, once a custom point style has been associated with a shapefile in GISRoam it is automatically imported and exported along with the file.
Show Thumbnails enables the display of point feature photos, which are used to assign photographs the attributes of individual point features.
Drawing Picture Scale defines the map scale range in which point feature thumbnails are displayed when Show Thumbnails is turned on. Thumbnails are hidden if you zoom the map out beyond this range.
File Region selects the country of origin of the shapefile, which tells GISRoam whether the decimal point is represented by a comma or period. If your decimal numbers do not appear to be correct, you may need to change this setting.
Shapefile Units selects the unit of measurement for the purpose of calculating the length of lines and the area of polygons when new features are created. By default, Shapefile Units is set to Feet if your device's regional setting is United States, United Kingdom, or Canada (English), and is set to Meters otherwise.
New Feature opens the coordinate recorder for digitizing.
Delete Local removes the shapefile from your mobile device.
Jump to: Shapefile Information | Creating a New Shapefile
Tapping Attributes on the shapefile information screen displays the selected shapefile's attribute definition.
See Feature Attributes for information on assigning attribute values.Tap to define a new attribute.
Tapping an attribute name displays all the values of that attribute that occur in your data. The right column indicates how many times each value appears.
Tap on the shapefile Attributes screen to open a New Attribute screen:
Attribute Type can be Numeric (integer), String (text), or Float (decimal).
Jump to: Shapefile Information | Attribute Definition
You can create new shapefiles and define their attributes in GISRoam. For information on transferring shapefiles between GISRoam and your computer, see DataConnect.
Step 1: Tap My Data > My Shapefiles to display a list of shapefiles on your mobile device
Step 2: Tap Edit at the upper right corner and then scroll down to the bottom of the screen.
You can use the Drag icon to change the position of shapefiles in this list. The relative position of each shapefile controls its drawing order.
Step 3: At the bottom of the screen, tap add new... to open a new shapefile screen.
Step 4: Enter the new Shapefile Name and set the Shapefile Type to Polygon, Point, or Line.
Step 5: Tap OK. The new shapefile name appears a the top of the list of shapefiles.
Step 6: Tap Done.