Changes from Version 14.5 to Version 15

Version 15 of the LEADTOOLS Vector C++ Class Library has changed from version 14.5 as follows:

• LEADTOOLS Version 15 now supports both ANSI and UNICODE development in the same libraries.

• LEADTOOLS now supports specifying the version of toolkit that you are using. You should define LTVXX_CONFIG in your project, where "*" is the version you are using, for example: LTV15_CONFIG.

• Enhancements made to memory allocation and handling.

• Adds transparency support for raster images.

• Adds support for adding units.

• Adds support for NAP format.

• LEADTOOLS has enhanced the following File format support to improve performance:

  • CGM (Computer Graphics Metafile): This version adds raster, restricted text, polymarker,cell array, 3-point circular arc, and CGM objects.

  • DGN (Intergraph Format): Now supports symbology levels, with enhanced color and text rendering.

  • DWG (AutoCAD Format): Now supports DWG2004, leader objects, and directional (2D) extrusion, with an optimized block and entity parser; improved color, line type, block, and extent support; and enhanced polyline, circle, ellipse, arc, spline, multi-line, attribute, and raster object performance.

  • DXF (Drawing Interchange Format): This version includes an updated DXF parser; updates algorithms for drawing objects and adds extrusion support; improves the rendering of model and paper space; adds entity block rendering, multi-line objects, multi-line text objects, end arrows, and width and bulge values for polyline objects; and enhances performance for ellipse rotation, arc angles, hatchures, splines, and attributes.

  • SVG (Scalable Vector Graphics): Now supports gradient brushes, hyperlinks, transformation matrices, and class styles, and enhances elliptical paths, arcs, text, and SVG objects.

• VECTOR_MAX_NAME is changed to 64 to reduce the restrictions on complicated files.

• DirectX and OpenGL rendering engines are no longer supported.

  <span class="deprecated-leadlabel-id">Example updates:</span> 
    
  LVectorBase::ConvertPointFromUnit has been Replaced. 
  LVectorBase::ConvertPointToUnit has been Replaced. 
  <span class="deprecated-leadlabel-id">Tutorial updates:</span> 
  The following tutorials have been removed: 
  Using Vector engines 
  <span class="deprecated-leadlabel-id">Topic updates:</span> 
  The following topics have been added or updated: 
  Demo Programs 
  NAPLPS Format (NAP) 
  Summary of All Supported Image File Formats 
  Vector Common Dialogs 
  Vector Units Conversion 

Changed or removed structures:

The following structures have been changed:

VECTORHANDLE 3 members have been removed.

New Structure:

VECTORUNIT

Added functions:

LVectorBase::ConvertPointFromUnit

LVectorBase::ConvertPointToUnit

LVectorBase::GetUnit

LVectorBase::SetUnit

Changed or removed structures:

The following structures have been changed:

VECTORHANDLE 3 members have been removed.

Changed or removed functions:

LVectorBase::AttachToWindow 1 parameter has been removed.

LVectorDialog::DoModalVectorRender 2 parameters have been removed.

LVectorWindow::Load 2 parameters have been removed.

The following functions have been removed since version 14.5:

LVectorBase::GetAmbientColor

LVectorBase::GetEngine

LVectorBase::GetUseLights

LVectorBase::SetAmbientColor

LVectorBase::SetEngine. To achieve the same functionality, use LVectorBase::AttachToWindow

LVectorBase::SetUseLights

LVectorWindow::SetEngine. To achieve the same functionality, use LVectorBase::AttachToWindow

For more information, refer to:

LEADTOOLS Press Room