How to change the shape of a Line or Area Feature

A number of our iOS apps provide the Move Node function. A couple apps also provide the Insert Node function.

When you use Move Node to move a node of a Line or Area Feature, the shape will be changed. Beware, though, that there is not an undo function for Move Node. If you change your mind, you will need to manually move the node back to its original position or as close to it as possible.

The Insert Node function provides additional flexibility to change the shape of the Line or Area Feature. You can add additional nodes between two existing nodes and move the nodes to approximate the desired shape.


Polygons converted to Shapefiles using kml2shp online

“Q2. I imported a polygon with 12 corners (110 ac area in Pennsylvania) (KMZ from GoogleEarth converted to shape with kml2shp online). The imported polygon has two additional 14 points, one located near the south west coast of Africa. Any polygon imported as escrowed contains one point in the South Africa location. How o I deal with this.”

There is a bug in kml2shp online.

Your polygon with 12 corners will show 13 nodes in Contour-Volume-Stakeout and any of our other apps that imports Shapefiles. This is normal – nodes 1 and 13 are the same to close the polygon.

The problem is that, when converting a polygon, kml2shp online always adds one extra point with 0 Lat/Lon.

You can resolve this issue by modifying the coordinates of node14 to be the same as node13.

1) Select the polygon.

2) Tap on the Feature Properties icon to call up the dialog.

3) Change Node# to 13 and write down the LAT/LON.

4) Change Node# to 14 and replace LAT/LON with the values from node13.

Can I use iCMTGIS II to edit a polygon after importing Shapefiles?

Moving a node to a different position

Moving a node to a different position

Yes, you can import Shapefiles into the iCMTGIS II, iGPS GIS II or Utility Data Collection app, edit the position of a Point Feature or the shape of a Line or Area Feature (polygon), then export the changed Features in Shapefile format.

One way to change the position of a Point Feature or a node on a Line or Area Feature is to select the Feature then call up the Feature Properties screen and edit the coordinates of the node.

Another way is to highlight the Feature then use the Mode Node tool to move the selected node to a new position.

You can use any of our apps that provide the Feature Properties or the Move Node function to change the position of a Point Feature or a node on an Area Feature. Some examples are: Area – Distance, Stakeout iCMT, Farming GPS GIS and Forester GPS GIS. These app save data in .pmp format but do not export Shapefiles. Farming GPS GIS and Forester GPS GIS will import Shapefiles and export Feature data in DXF format.