MJ Chainage Draw
Draw continuous polylines with exact chainage inputs and optional click-to-distance auto calculation.
MJ Chainage Draw is an advanced QGIS map tool designed for surveying, highway engineering, and pipeline mapping. It allows users to interactively create a continuous polyline by either entering specific segment lengths manually or using the map click distance automatically (by pressing Enter). The tool perfectly handles coordinate transformations (Canvas to Layer CRS) to eliminate ellipsoidal distance calculation mismatches, tracks real-time rubber band previews, supports standard snapping, and includes seamless multi-step Ctrl+Z undo operations. It automatically auto-creates and populates LENGTH and CHAINAGE attributes (e.g., 1+250 format) on a single continuous feature path. Developed by MJNETWORK. Support development through the Homepage QR Code.
