Calculate Isolines

Isolines let you visualize the objects at a specific distance from a starting point.

You can only calculate isolines for address layers.

1. You can access Calculate isolines by

Click on menu → Select under Data Analysis menu.

2. In the Select layers and objects area, original layer selection box, select a layer to draw isolines around its objects.

3. Select the desired objects. There are 2 options for this:

Element	Description
Consider all objects	This selects all the objects at the specified map layer.
Select objects	Select one or more objects from the source layer or the data table.

4. Select calculation procedure from procedure list

Element	Description
Polygon	Calculated based on polygons/points. The procedure is designed for short distances.
Grid	Makes calculations on the basis of a saved grid. The procedure is designed for short distances

5. Select Distance criterion :-

Distance criterion	Description
Direct distance (in km)	The calculation is linear
Route distance (in km)	The calculation is based on detailed road network
Time (in minutes).	Calculations are based on a detailed road network and the selected vehicle profile.

6. Enter the desired value in the Maximum value field.

7. In display of result selection, Select line color, line width and intervals.

You can also change the interval steps manually in the table on the right area. To do so, click the corresponding value and enter a new value.

8. You can optionally change the color gradient.

Enable the option Display color gradient.

9. Select the desired color gradient in the fields 'From' and 'To'.

10. Enable the Transparency option and use the slider to configure the desired transparency.

11. Click on <Calculate> button.

You can use Undo to delete the isolines you have calculated.