For a long time, I had wanted to have a smarter contour label that drops decimals. Something like what is available for Stations type labels. A modifier that could “Drop Decimal Value for whole numbers”
ISSUE:
A function to drop whole value is not available for Contour type surface labels. As shown below, the Surface Elevation label is set to two decimal places, it will always show no matter what contour elevation is.
SOLUTION:
First, we will create two expressions that do the math to calculate when the elevation is whole or not.
| Expression to Hide whole value | Expression to Show Decimal value |
|
Name: Hide_Decimal
Description: Compares Values controls Height
Expression: IF(Math=0,0,0.1/12)
 |
Name: Show_Decimal
Description: Compares Values controls Height
Expression: IF(Math=0,0.1/12,0)
 |
Next, create a Contour Label with 2 Text components:
1. Whole (red): No decimal places.
2. Decimal (blue): 2 decimal places.
| “Whole” text component: 0 decimal spaces |
 |
| “Decimal” text component: 2 decimal spaces |
 |
Use the setup will be useful for situations when contours intervals are set less than whole values or when Surface analysis is used.
About the Author
More Content by Leo Lavayen
