SmartGraph, there was a problem in labeling X and Y axes, now it has been solved.
- Selection problem in demo project solved.
- Name of output file changed to
SmartGraph rather than Graph.
In my recent projects, I needed to show some data in a 2D graph. This graph must have capability of zoom in, zoom out, and colorization. At first, I wrote some code directly in my VC project and the result was satisfactory, but I had to do it for any new project and it was time consuming. So, I thought of doing it as an ATL component so that it does all the things I need. This
SmartGraph is what I want.
SmartGraph is written in VC++ .NET 2003 using ATL and has several good methods, events and properties that makes it something easy to use.
SmartGraph is an ActiveX, so it can be used in any visual language that supports ActiveX, such as Visual C++, Visual Basic, C#, Delphi, ... It can resample its data more quickly by using
SetData(.,.,.,true). It also can be viewed as Regular graph, Dot graph, or Bar graph by using
How to use SmartGraph?
SmartGraph, you must do these steps:
SmartGraph using this command at command prompt: "regsvr32 <PATH>\Graph.dll", or only compile "Graph.sln".
Note: if you don’t have VC++ .NET, you can’t register Graph.dll unless you copy "msvcr71.dll" to your Windows directory. (This file is attached to this article.)
- In your project, press right-click on your ToolBox and then "Add/Remove Item", then select "SmartGraph" from "COM Components" tab, now it must appear in your toolbox.
- Now, only click on it and drag it to your dialog, now create a variable and use it:
and when your data is ready, use:
Back Color: use it to change background color of the graph (
Title: title of graph.
Rows: number of columns and rows to be drawn if grid is on (
yLable: Labels appearing in X and Y axes.
MarginBottom: Margins for labels, title and …
SetData if you don’t want to set maximum and minimum of X and Y axis. Use
SetData2 if you want to specify max and min of data.
SetPlotType: 0 - Regular, 1 - Dot Graph, 2 - Bar Graph.
ZoomInByPercent: Zoom in (x axes) from sample/percent "
FromPercent" to sample/percent "
ZoomOut: returns graph to previous view.
Reset: returns graph to original view.
GetDisplayedRange: returns range of samples that already are shown.
Sample application provided is a good demonstration of this
Use, enjoy and guide me for future improvements.