Labeling features with font dependent on polygon area?

Question

i want to label my island data with variety of size of text based on the island area for example island that have more than 100km, i want to label it using Arial 12 while island less than 100km i want to label using Arial 10..im label it using maplex.

Answer 1

Assuming that your area field is called Shape_Area (in Square Kilometres) and your label field is called name, I would:

1. Open the Labels tab of the Layer Properties
2. Check the Advanced box
3. Set the Parser to Python
4. Write a FindLabel function for the Expression as below – note that it may not Verify correctly but will still work:

def FindLabel ( [name], [Shape_Area] ):
    if float([Shape_Area]) >= 100000:
        return "<FNT name='Arial' size = '12'>" + [name] + "</FNT>"
    else:
        return "<FNT name='Arial' size = '10'>" + [name] + "</FNT>"

Answer 2

Your question is not specific to maplex rather just using the general label properties. Here are the general steps:

1. Create column to hold area value and calculate geometry area to it
2. Setup the various label classes within the layer properties>labeling tab and define font size, color..etc
3. Set an SQL query for each class by area range