CalculateRegionMaximumClipSegments Method (original) (raw)
Summary
Gets the number of elements required to hold the clip segments for any row in the region.
Syntax
C#
Objective-C
C++/CLI
Java
Python
public int CalculateRegionMaximumClipSegments() @property (nonatomic, assign, readonly) NSUInteger maximumClipSegmentsForRegion public int calculateRegionMaximumClipSegments(); public:
int CalculateRegionMaximumClipSegments();
def CalculateRegionMaximumClipSegments(self): Return Value
The maximum number of segments in a row within the region.
Example
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Core;
using Leadtools.ImageProcessing.Color;
using Leadtools.Dicom;
using Leadtools.Drawing;
using Leadtools.Controls;
using Leadtools.Svg;
public void GetRegionClipSegmentsExample()
{
RasterCodecs codecs = new RasterCodecs();
string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_GetRegionClipSegments.bmp");
// Load the image
RasterImage image = codecs.Load(srcFileName);
// Add a region to the image
LeadRect rc = new LeadRect(image.Width / 3, image.Height / 3, image.Width / 3, image.Height / 3);
image.AddEllipseToRegion(null, rc, RasterRegionCombineMode.Set);
// Set the pixels inside the region to black
// Get the maximum number of elements in a row,
// so we know how big the array of segments should be
int maxClipSegments = image.CalculateRegionMaximumClipSegments();
// Get the region bounds, so we know which is the first row
LeadRect rgnBounds = image.GetRegionBounds(null);
// Allocate an array large enough to store the maximum number of segments.
int[] segmentBuffer = new int[maxClipSegments];
// Loop through the region rows
for (int y = rgnBounds.Top; y < rgnBounds.Bottom; y++)
{
// Get the segments for the row
image.GetRegionClipSegments(y, segmentBuffer, 0);
// Do something with the pixels
for (int i = 0; i < maxClipSegments / 2; i++)
{
for (int j = segmentBuffer[i]; j < segmentBuffer[i + 1]; j++)
{
RasterColor clr = image.GetPixelColor(y, j);
clr = new RasterColor(clr.R / 2, clr.G / 2, clr.B / 2);
image.SetPixelColor(y, j, clr);
}
}
}
// Save the image back to file
codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24);
image.Dispose();
codecs.Dispose();
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}
Leadtools Assembly