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Point Group Manager

Overview 

The Point Group Manager in SPCAD is an intuitive and feature-rich interface for managing collections of CAD points—commonly used in surveying, surface modeling, and design workflows. Whether you’re organizing points, editing elevations, extracting from drawings, or exporting to standard GIS/CAD formats, this tool provides a streamlined experience in one place. 

Key Components at a Glance 

The top ribbon includes five main sections, each grouping key functionalities: 

  1. Manage:
    • Create new point groups, modify existing ones, or merge multiple groups into a single point group. 
  1. Edit:
    • Open a detailed Point Editor to modify point attributes. 
    • Use Change Elevation to apply bulk elevation transformations on all points in the point group. 
  2. Add Points 
    • Populate point groups via: 
      • Manual selection from the drawing. 
      • Importing from external files. 
      • Drawing points on-screen. 
      • Extracting from CAD geometry like lines, arcs, and polylines. 
      • Sampling from raster surfaces such as DEMs. 
  1. Export 
    • Export point data to: 
      • CSV/ASC/XYZ/TXT formats for interoperability. 
      • KML for viewing in tools like Google Earth. Shapefiles (SHP) for GIS applications. 
  1. Create Features 
    • Derive new features from point data: 
      • ShrinkWrap boundary. 
      • Convex Hull around points. 
      • Quick Contours (elevation-based lines). 
      • Label as Soundings (elevation text based on IHO standards). 
      • As Tables (Create  tables of point data). 

Point Groups Panel 

At the top-left, the Point Groups (2) header displays the current number of point groups existing in the drawing. The panel below lists them with intuitive controls: 

  • Zoom – Focus the CAD view on the selected point group. 
  • Visibility Toggle – Turn the group display on or off. 
  • Delete – Remove the point group from the drawing and session. 

Point Group Info Panel 

When a point group is selected, detailed information is displayed below: 

  • Name, Scale, and Number of Points 
  • Elevation Statistics: Minimum and Maximum Elevations 
  • Point Style and Point Label Style 

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