Injection allows a field to resolve from parameters and variables instead of fixed values.
Instead of typing literal values, you bind fields to logic.
This is how geometry and labels stay in sync with inputs.
Fields can evaluate:
Tokens -> {Control_Load}
Expressions -> =IF(Control_Load > 1000, 2, 1)
Text -> 'Load: {Control_Load} VA'
Injection in the Properties Panel - the selected block shows injectable parameter fields on the left, the drawing updates in the center, and the debug preview on the right shows the computed values the system is using.
Why injection matters
Injection connects logic to geometry and text. Instead of manually editing drawings, you define how fields resolve from data.
This enables:
Geometry that updates automatically
Labels that stay consistent
Nested blocks that receive computed values
Injection is the bridge between logic and outputs.
How to enter injections
Injection is applied directly in the Properties Panel.
Type a token - use {Name} to reference parameters or variables
Enter an expression - start with = to compute values
Drag and drop - drag parameters or variables into fields
Use field controls - some fields provide dropdowns or helpers
A preview shows the resolved value so you can verify the result.
Injection types
Text interpolation
Text fields can mix static text with dynamic values.
Example: LOAD: {Control_Load} VA
The text updates automatically as inputs change.
Text interpolation - embedding values inside labels.
Formula injection
Fields can compute values using formulas.
Example: =IF(Control_Load > 1000, 2, 1)
This allows behavior to be defined directly at the field level.
Expressions - computing values directly inside a field.
Where it is
Properties Panel -> main injection interface
Geometry fields -> dimensions, transforms
Text fields -> labels and annotations
Nested block parameters -> pass computed values
What happens
Field receives input (literal, token, or expression)
Tokens resolve from current parameters and variables
Expressions evaluate using logic
Result becomes the field's value
Geometry, text, and nested blocks update
Reference link
For full syntax and supported functions, see the Reference page:
