LUPMIS - GIS User Manual for Land Use Planning

2.4 Digitize Polygon

Level of expertise required for this Chapter: Beginner

1. The standard process to digitize a new polygon (for example, land use, parcel, administrative unit) starts from the toolbar left:

Alternative option to call the polygon digitizing mode is through Main menu > Tools > Drawing > Polygon.

2. You then define the outline of the polygon by clicking all ‘corners’ of the polygon with the left-mouse. The polygon does not have to be ‘closed’: Just finish it by right-click.

A Polygon window will appear, where you can enter the characteristics: In most numeric cases this will be the Style number. According to the type of map you digitize, you must change the style definitions (classification) by Polygons window: Styles > Edit project style set >

> Style set editor window: Style management > Import style set and overwrite >

> Choose style set window: Select the classification of your current map (see also Annex 6) > OK > OK > OK

To enter text, like a name, use the Display Label (under Basics).

You can determine, which tab of this window will pop up through Main menu > Edit > Live layer options > New object options > Show parameters dialogue box on creation.

After having entered the polygons, do not forget to save this live layer: Right-mouse > Save live layer as… > Select folder > Specify file name

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You can also draw precise circles or rectangles: Right-mouse > Drawing > Circle (or Rectangle).

If it will be a circle, you define the centre point and the radius (in meters). If it is a rectangle, you define the two opposite corners.

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More specific polygon entry modes are described at following Chapters.

An interesting alternative, specific for entry of field survey with conventional methods, is explained in Annex 16.