The class TSmithChart is a component for displaying Smith charts. - for more details please have a look at the online help pages.

The component TSmithChart is part of the unit SDL_rchart which is part of the SDL Component Suite.

Free Sample Program

SChart

This application shows the usage of the component TSmithChart to display complex s-parameters of an electronic circuit.

schart.zip (302 kB)

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What's new:

• Release 12.0   [Dec-12, 2023]
   
  • the method ClearAnnotations has been extended to delete annotations belonging to a particular layer
  
  
• Release 10.7   [Aug-24, 2020]
   
  • no changes
  
  
• Release 10.6   [Mar-09, 2018]
   
  • TSmithChart.TextBkColor is deprecated and has been replaced by FillColor
  • the propertyTSmithChart.TextFont provides a global definition of the font of the text elements
  • the method TSmithChart.GetTransformParams retrieve the scaling parameters of the axes
  • the new methods TSmithChart.SearchDataItem allow to search for data items
  • TSmithChart.OnScalesRendered and TSmithChart.OnBeforeRenderData are now published
  
  
• Release 10.5   [Oct-10, 2016]
   
  • no changes
  
  
• Release 10.4   [Jun-02, 2015]
   
  • bug fix: CopyToOpenPrinter did not work (bug was introduced with release 10.3)
  
  

• Release 10.3   [Oct-06, 2014]
   
  • the property MinDupMarkDist allows to control the required minimum distance of marks in order to be drawn
  • the new events OnSelectRect, and OnRubberBand are triggered after the selection of a rectangular region and after drawing a rubber band, respectively
  
  
• Release 10.2   [May-30, 2013]
   
  • the drawing speed of marks for overpopulated charts increased by a factor of 10 (property AvoidDuplicateMarks)
  • the new method RemoveItemsByLayer allows to delete all drawing elements in a particular layer
  • SmithChart supports now the Assign method
  • the new methods CopyToClipboardDAOnly and CopyToBitmapDAOnly copy the data area only (not including the scale region)
  • bug fix: CopyToWMF and CopyToClipboardWMF caused a memory leak
  
  
• Release 10.1   [Oct-29, 2012]
   
  • no changes
  
  
• Release 10.0   [Oct-4, 2011]
   
  • no changes
  
  
• Release 9.7   [May-31, 2010]
   
  • no changes
  
  
• Release 9.51   [Dec-01, 2008]
   
  • no changes
  
  
• Release 9.5   [Oct-31, 2008]
   
  • bug fix: the printing routines of TSmithChart work now as expected
  
  
• Release 9.0   [May-28, 2007]
   
  • first release to the public