Working with Variables in SeamScape

Variables in SeamScape are named placeholders for values, crucial for creating reusable, adaptable, and maintainable pattern designs. They function as custom measurements or parameters that govern your pattern's geometry.

Variable Categories

Conceptually, variables in SeamScape can be categorized as:

• Input Variables: Core parameters you define, often representing key measurements (e.g., BustCircumference, SleeveLength, SeamAllowance). Their values are typically set directly.
• Derived Variables: Calculated values based on formulas involving other variables or pattern properties (e.g., HalfBust = BustCircumference / 2). They update automatically when their dependencies change.

Application in Formulas and Constraints

Variables are primarily utilized within formulas that define constraints or other calculated properties. Reference a variable by its name within a formula:

• Set a path length constraint to: SleeveLength.
• Define a point's X coordinate with: Point1.x + SeamAllowance.
• Calculate a derived variable: WaistFront = HalfWaist + DartIntake.
• Constrain a Sliding Point's position: ArmholeCurve.length * ShoulderRatio (where ShoulderRatio is another variable).

Benefits of Variables

• Centralized Management: Modify a measurement in one location (the variable definition) for pattern-wide updates.
• Reusability: Define standard values (e.g., SeamAllowance) once for consistent application.
• Adaptability & Grading: Facilitate easy resizing of patterns by adjusting a few key input variables.
• Clarity: Enhance pattern logic readability with meaningful names (e.g., NeckDrop vs. a numeric literal).
• Efficiency: Streamline the design process by minimizing repetitive manual adjustments.

Practical Examples

• Custom Fit: Define input variables for all essential body measurements for made-to-measure patterns.
• Style Variations: Control design elements like PocketHeight or CollarWidth using variables.
• Formula Simplification: Decompose complex calculations into intermediate derived variables for improved clarity (e.g., calculate EaseAmount separately).

Recommended Practices

• Descriptive Naming: Employ clear, unambiguous names (e.g., WaistCircumference over WC).
• Consistent Conventions: Adhere to a uniform naming style (e.g., camelCase or snake_case).
• Logical Grouping: Organize related variables if supported by the interface.
• Optional Documentation: Add descriptions to variables to clarify their purpose and usage.

Proficient use of variables is fundamental to leveraging SeamScape's full capabilities for creating truly parametric and efficient pattern designs.