Overview
Precision measurement tools for calculating distances, areas, and perimeters.
Measurement tools allow your application to trigger precision measurement actions directly via the Viewer SDK.
These tools enable users to calculate distances, areas, and perimeters with sub-pixel accuracy directly on the document canvas.
The Snap tool acts as a precision layer for all measurement actions. When enabled, your cursor acts as a magnet, automatically locking onto lines, corners, and intersections.
Measurement Tools
Length, area, and specialized geometry measurements.
Scale Reference
Manage document calibration and accuracy.
Measurement Calibration
Establish document scale from a reference line and known real-world length.
Drawing Measurement and Takeoff Guide
Implement scale confirmation, measurement tool gating, persistence, and recovery.
Measurement Created
Listen for new data when actions are completed.
Save Persistence
Persist measurements to your database.
Data Extraction
Bulk extract all measurement data.
Select Measurement
Handle user selection events on the canvas.
Annotation Visibility
Show or hide specific measurements and annotations.
Count Point Mode
Keep one count annotation in repeated point-placement mode.
Delete & Remove
Remove specific measurements from the canvas.
Clear & Reset
Exit measurement mode and reset the state.
API Reference
Technical identifiers and message structures.
The measurement system provides tools for various calculation and persistence workflows.