How to write code for chemical structure to use it in chemical editor like chem draw [closed] - qt

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Hey I want to create a chemical structure editor like chem draw, I am using QT software with C++ programming to create one, so can you guide me how to create a structure and if we can attach different bond with it chem draw link: chemdraw
Well I create chemical structure using QPainter API but we can't attach bonds to it, I want something so that I can attack two structures to make a one

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Fully customizable GUI for R? [closed]

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My research team has a series of "relatively" standard analyses that they run for different experiments, but need slightly different analysis procedures. I want to give them the freedom to analyze their own data, despite being programming naive. I would like to create a GUI that asks them a series of questions that will lead them to the right script (which I will have written, and have available on the back end) so that they can just push "run" and have their analysis spit out.
Any ideas on how to create a GUI that will lead them to the right script would be fantastic. Even better would be a GUI that allows them to input variable names, which then amend the code so that the outputs are a little more custom.
If you have access to a web server (intranet or internet), Shiny can do what you want. It is a web application layer on top of R.

in html is possible to input excel spreadsheet of data and form a graph? [closed]

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I want to create a program which allow in html to read excel data and form a graph but I do not know how to do it.
Any idea how to do it? Possible then could you send me a link I can look to start the project?
Take a look at js-xlsx(https://github.com/SheetJS/js-xlsx) library using tha t you can parse excel files.

what are the notations used for Software highlevel design? [closed]

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i have been given to design software.i have designed the overall process using box and arrow notation .i want to know for high level design of software is there any specific notation to follow.
One of the most commonly used notations is UML or Unified Modelling Language.

associate flow of lyrics with song [closed]

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I am creating a music player in Qt.
One of the feature that I want to implement is that it will show lyrics with the song. So I wanted to know about the best suited algorithm which I should use so as to implement this.
I understand that I will have to use timestamp on words of lyrics. But how should i implement this ?
I sugguest you to adopt the LRC (file format).
lrcDB is an online database of lyrics tagged in LRC format.
The XMMS an open source project is one possible good starting point if you are interested in how a multimedia player interprets LCR files.
If you feel comfortable with Python, you can also head to the On Screen Lyrics project hosted on Google Project.

Diagram for SDLC Straitegy [closed]

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Hi i am making asp.net website
and i am following SDLC Straitegy
so which diagrams are required to draw.
Depends on what diagrams you need!
Diagrams should not be drawn for thr sake of drawing a diagram. It should add value to your development process.
Having said that, You might want to make a Class diagram and a Sequence Diagram for starters. Drawing the overall system architecture wont hurt either.

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