Draw lines/Shapes from Points

By Ashok Peddi

In ArcGIS License

If you have ArcGIS License , well and good !There is an option called “Points to

Polygon” or “Points to Line” in Data management Tools (I am not sure search it in ArcToobox)

If you don’t have ArcGIS License, Don’t worry you have sense .

If you know KML

If you know KML it is well and good you can write code!(Keyhole Markup language ,extension of XML developed by an Keyhole inc (Acquired by Google in 2001))

If you don’t know KML then follow these instructions

See next slide..

What is KML?

• I already mentioned that Keyhole markup Language which is an specific with XML is accepted by OGC standards.

• I have given an example write this code in Notepad and save it in KMZ format.

Code to convert Points(GPS Points) to Line!• <?xml version="1.0" encoding="UTF-8"?>• <kml xmlns="http://www.opengis.net/kml/2.2">• <Document><name>KML file with polygon for bird species range</name>• <description>Source various books and websites</description>• <Style id="rangecolour">• <LineStyle><color>660000FF</color><width>0.1</width></LineStyle>• <PolyStyle>• <color>660000FF</color>• </PolyStyle>• </Style>• <Style id="linecolour">• <LineStyle><color>660000FF</color><width>3</width></LineStyle>• </Style>• <Placemark><name>distribution/range</name>• <description></description>• <styleUrl>#linecolour</styleUrl>• <LineString>• <tessellate>1</tessellate><altitudeMode>clampToGround</altitudeMode>• <coordinates>

Here you need type/copy paste your Coordinates

• </coordinates>• </LineString>• </Placemark>• </Document>• </kml>

Need more help click here

“Example:Points

Click save as option in Note Pad

Save as KMZ file as shown below

Now your KML is ready

Open this KML in Google Earth or QGIS.In QGIS you can open KML directly with Open

command and save it as a Shape file(ESRI format).

See the next slide..

Click on Add a vector Layer In QGIS

Click on browse files

Select All files

Click on Open

Your KML in QGIS

Right Click on The layer fine in table of Contents to Save as Shape file

End of the Slide show

By!!@@!! The geoJuggernaut!!@@!!

www.geospatialtraining.orgOr

www.About.me/asok