Steema teechart + teegrid + teebi

emailx45 · Dec 20, 2018

Possible problem when install 64bits modules in RAD Studio XE10.3 RIO
Thanks to UniSoft

BlackCat-108 said:
However, compiling a 64-bit project fails.
[ilink64 Error] Error: Unresolved external '_lseek' referenced from C:\PROGRAM FILES (X86)\EMBARCADERO\STUDIO\20.0\LIB\WIN64\RELEASE\RTL.A|System.ZLib.o

UniSoft:
Looks like it is a BUG in IDE...

It rises only in C++ Builder x64 with disabled "Link with runtime packages"... just patch file ".\Source\Chart.pas"
add in uses:

{$IFDEF D26}
{$IFDEF WIN64}
System.Win.Crtl,
{$ENDIF}
{$ENDIF}

emailx45 · Jun 16, 2019

TeeChart v2019.27 FS Installer + PAK (only DCU) + Sources

my manual
https://dumpz.ws/threads/steema-teechart-teegrid-teebi.42438/#post-539184

[SHOWTOGROUPS=4,19,20]
https://www.mirrored.to/files/GQPBU3QB/Teechart_v2019.27.7z_links

http://www.teechart.net/files/vcl/public/TeeChartPro9/TeeChartVCLFMX-2019.27.exe

http://www.teechart.net/files/vcl/public/TeeChartPro9/Delphi26Binaries-2019.27-windows.pak
[/SHOWTOGROUPS]

emailx45 · Sep 14, 2019

The Smith Chart
Steema polar charts(an example) used by electrical engineers.

The Smith chart, invented by Phillip H. Smith (1905–1987),[1][2] is a graphical aid or nomogram designed for electrical and electronics engineers specializing in radio frequency (RF) engineering to assist in solving problems with transmission lines and matching circuits.[3] The Smith chart can be used to simultaneously display multiple parameters including impedances, admittances, reflection coefficients, {\displaystyle S_{nn}\,}S_{{nn}}\, scattering parameters, noise figure circles, constant gain contours and regions for unconditional stability, including mechanical vibrations analysis.[4][5] The Smith chart is most frequently used at or within the unity radius region. However, the remainder is still mathematically relevant, being used, for example, in oscillator design and stability analysis.[6]

While the use of paper Smith charts for solving the complex mathematics involved in matching problems has been largely replaced by software based methods, the Smith charts display is still the preferred method of displaying how RF parameters behave at one or more frequencies, an alternative to using tabular information. Thus most RF circuit analysis software includes a Smith chart option for the display of results and all but the simplest impedance measuring instruments can display measured results on a Smith chart display.

more info: https://en.m.wikipedia.org/wiki/Smith_chart

[SHOWTOGROUPS=4,19,20]
Download source code
https://www.mirrored.to/files/VW4UNXI0/SmithChart.rar_links

or

https://mega.nz/#!HloDlAQA!8bJC7JnzERX86MoUSUfWV57LpyUOqFXfI43cJIXaE5c

[/SHOWTOGROUPS]