CodecsVectorLoadOptions Class

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Objective-C
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public class CodecsVectorLoadOptions

'Declaration
 
Public Class CodecsVectorLoadOptions

'Usage
 
Dim instance As CodecsVectorLoadOptions

public sealed class CodecsVectorLoadOptions

function Leadtools.Codecs.CodecsVectorLoadOptions()

public ref class CodecsVectorLoadOptions

LEADTOOLS provides support for loading a vector image as a raster image. Vector formats such as DXF, DWG and SVG can be converted to a raster image through a process called rasterization.

Rasterization is the process of converting a vector image to a raster image. To determine whether a certain file on disk (or in a .NET stream) contains a vector image file rather than a regular raster image, call the RasterCodecs.GetInformation or RasterCodecs.GetInformationAsync method and check the CodecsVectorImageInfo.IsVectorFile property. Here is a code snippet:


            CodecsImageInfo imageInfo = rasterCodecsInstance.GetInformation(fileName, true);
            if(imageInfo.Vector.IsVectorFile)
            {
               // A vector image file (DXF, DWG, SVG, etc)
               Console.WriteLine("Vector file");
               // Your code specific to working with a vector image goes here
            }

To rasterize a vector image file, set the properties of the CodecsVectorLoadOptions to the desired values, and then call the RasterCodecs.Load or RasterCodecs.LoadAsync methods.

A vector image file format usually does not have a physical size. The user can specify a viewport (physical size up to which the drawing can be rendered) ViewWidth and ViewHeight. How the drawing is to be rendered inside this viewport depends on the current viewport mode set with ViewMode. Default viewport size is 640x480 pixels.

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

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Imports Leadtools
Imports Leadtools.Codecs

Sub CodecsVectorLoadOptionsExample()
   Dim codecs As RasterCodecs = new RasterCodecs()

   Dim srcFileName as String = Path.Combine(LEAD_VARS.ImagesDir, "random.dxf")

   ' Set the vector load options
   codecs.Options.Vector.Load.BackgroundColor = new RasterColor(255, 255, 255)
   codecs.Options.Vector.Load.BitsPerPixel = 24
   codecs.Options.Vector.Load.ForceBackgroundColor = true
   codecs.Options.Vector.Load.ViewWidth = 800
   codecs.Options.Vector.Load.ViewHeight = 800
   codecs.Options.Vector.Load.ViewMode = CodecsVectorViewMode.UseBest

   ' Load the image
   Dim image As RasterImage = codecs.Load(srcFileName)

   ' do something with the image here

   ' Clean up
   image.Dispose()
   codecs.Dispose()
End Sub

Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

using Leadtools;
using Leadtools.Codecs;

public void CodecsVectorLoadOptionsExample()
{
  RasterCodecs codecs = new RasterCodecs();

  string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "random.dxf");

  // Set the vector load options
  codecs.Options.Vector.Load.BackgroundColor = new RasterColor(255, 255, 255);
  codecs.Options.Vector.Load.BitsPerPixel = 24;
  codecs.Options.Vector.Load.ForceBackgroundColor = true;
  codecs.Options.Vector.Load.ViewWidth = 800;
  codecs.Options.Vector.Load.ViewHeight = 800;
  codecs.Options.Vector.Load.ViewMode = CodecsVectorViewMode.UseBest;

  // Load the image
  RasterImage image = codecs.Load(srcFileName);

  // do something with the image here

  // Clean up
  image.Dispose();
  codecs.Dispose();
}

static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}

Target Platforms

Reference

CodecsVectorLoadOptions Members
Leadtools.Codecs Namespace