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Import Geospatial Data from Shapefile

2,227 bytes added, 15:43, 16 October 2013
Created page with "<p>Various windows in IMSMA allow you to import geospatial data from external source files. These external source files can be either Excel spreadsheets (with a .xls or .xlsx ..."
<p>Various windows in IMSMA allow you to import geospatial data from external source files. These external source files can be either Excel spreadsheets (with a .xls or .xlsx file extension), or shapefiles (with a .shp file extension).</p>
<p>To import geospatial data:</p>
<ol>
<li>Click the [[Image:EditReportIcon.png | Import Points]] button.</li>
:The Open window displays.
<li>From the Open window:</li>
<ol type="a">
<li>Navigate to the directory where the file that you would like to import is located.</li>
<li>Select the file name.</li>
<li>Click the '''Open''' button.</li>
:The geospatial data from the spreadsheet is appended to any existing data in the Points or Polygons table.
</ol>
</ol>

{{note|You must follow certain business rules to create and format the source file from which you wish to import data:
* For an Excel spreadsheet, follow the [[Geospatial Data#Excel Import Business Rules | Excel Import Business Rules]].
* For a shapefile, follow the [[Geospatial Data#Shapefile Import Business Rules | Shapefile Import Business Rules]].}}

===Shapefile Import Business Rules===__NOEDITSECTION__

<p>To import geospatial data from a shapefile, the file must be created according to the following business rules:</p>
<ol>
<li>If the selected coordinate reference system at the Point and Polygon/Polyline List window is different from the coordinate reference system specified in the .prj file, the coordinate data will be re-projected to the selected coordinate system specified at the Point and Polygon/Polyline List window.</li>
<li>If a PointID value is not provided in the shapefile, each coordinate data will be automatically assigned a unique PointID value.</li>
<li>If a PointID is provided in the shapefile, it must be unique across all coordinate data listed in the Points table and in the Polygon/Polyline Points table on the Point and Polygon/Polyline List window.</li>
<li>If the coordinate data is a point on a polygon/polyline, a unique PolyID value must be provided.</li>
<li>The PolyID value must be unique across all polygons/polylines data listed in the Points table and Polygon/Polyline Points table on the Point and Polygon/Polyline List window.</li>
</ol>

{{NavBox HowTo Enter Data}}
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