SetSeedPoint Method

Summary

Sets the seed point used when constructing the minimal paths for the edges.

Syntax

C++/CLI

Python

public void SetSeedPoint( 
   LeadPoint Seed 
)

public: 
void SetSeedPoint(  
   LeadPoint Seed 
)

def SetSeedPoint(self,Seed):

Parameters

Seed
A LeadPoint that contains the seed point used when constructing the minimal paths for the edges.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void GWireCommandExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   //Load an image 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE3.dcm")); 
 
   GWireCommand command = new GWireCommand(image, 90); 
 
   List<LeadPoint> SeedPoints = new List<LeadPoint>(); 
 
   // Get the boundaries of the object 
   SeedPoints.Add(new LeadPoint(200, 163)); 
   SeedPoints.Add(new LeadPoint(245, 195)); 
   SeedPoints.Add(new LeadPoint(289, 163)); 
   SeedPoints.Add(new LeadPoint(282, 188)); 
   SeedPoints.Add(new LeadPoint(304, 314)); 
   SeedPoints.Add(new LeadPoint(247, 271)); 
   SeedPoints.Add(new LeadPoint(201, 315)); 
   SeedPoints.Add(new LeadPoint(228, 199)); 
   SeedPoints.Add(new LeadPoint(199, 175)); 
 
   int pointIdx = 0; 
   List<LeadPoint> AllPaths = new List<LeadPoint>(); 
 
   // Loop over the list of SeedPoints to get the minimum path between each set of two points. 
   // And add the minimum path between the two points to the AllPaths List. 
   for (int index = 0; index < 4; index++) 
   { 
      // Set the seed point. 
      command.SetSeedPoint(SeedPoints[pointIdx]); 
 
      pointIdx++; 
      // Get the minimum path from the seed point to the target point. 
      LeadPoint[] minPath = command.GetMinPath(SeedPoints[pointIdx]); 
 
      // Add the minimum path to the AllPaths list to be used later to create a region. 
      AllPaths.AddRange(minPath); 
   } 
 
   // Use the minimum path around the object and convert it to a region. 
   image.AddPolygonToRegion(null, AllPaths.ToArray(), LeadFillMode.Alternate, RasterRegionCombineMode.Set); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}