Solved

X/Y scaling with MSChart type 2dXY

Posted on 2009-07-03
2
619 Views
Last Modified: 2012-05-07
VB6: My application produces an X/Y plot of data.  I am using MSChart type 2dXY.  The "autoscale" is enabled.

The X and Y axes evidently are scaled identically.  This means that, if the span of data for X, and that for Y, are not equal, the plot is not a square.

The span of data to be plotted varies.
My X data ranges from 0 to perhaps 1000.  My Y data typically goes from 0 to 100 or 200.
This produces a really "squished" picture.

I would like to specify the actual screen dimensions of the plot, no matter how the scale numbers are autoscaled.  Is this possible?

This is a simple plot, and it occurred to me that I could take the trouble to write the code to do my own plot.  But it would be easier to use MSChart, if I could force it to the screen dimensions I want.
0
Comment
Question by:NormaPosy
2 Comments
 
LVL 5

Accepted Solution

by:
BrianVSoft earned 500 total points
ID: 24776325
Hi again,
I have used MSChart many times, but not for a few years.. I don't remember ever having a "squashed" aspect.. It always stretched the Y axis to fill the MyChart.Height dimension..
Check if you are able to achieve a good aspect by simply placing "MyChart.Height = xx" at the end of your fill routine?
I now use my own function to draw simple 2D - multi-line charts in Picture boxes.. It is less than 50 lines of code and can be used for a variety of situations.. I can attach a code example if you continue to have trouble..
0
 

Author Comment

by:NormaPosy
ID: 24776927
Yes.  Me too.  I have an old code I once wrote which I can dig up.  It acceped parameters for scaling, axis labelling, etc, and just drew the plot.

For general use, autoscaling is a bit tricky.  For specific data, the scaling can be "hard wred".

You are right about how 2dXY does it.  The Y axis fills the height, and the "inches per unit" for both axes are identical, which means the X axis length is a function of the data ratio.  Should be independant and under code control.

Thank you.

0

Featured Post

Master Your Team's Linux and Cloud Stack

Come see why top tech companies like Mailchimp and Media Temple use Linux Academy to build their employee training programs.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Excel object stays open 19 76
Sending a email via excel using vba 6 82
vb6 connector to SQL Server 2 37
Access Object Property from VBA Module in Excel 2010 2 31
Introduction I needed to skip over some file processing within a For...Next loop in some old production code and wished that VB (classic) had a statement that would drop down to the end of the current iteration, bypassing the statements that were c…
Introduction In a recent article (http://www.experts-exchange.com/A_7811-A-Better-Concatenate-Function.html) for the Excel community, I showed an improved version of the Excel Concatenate() function.  While writing that article I realized that no o…
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
Get people started with the utilization of class modules. Class modules can be a powerful tool in Microsoft Access. They allow you to create self-contained objects that encapsulate functionality. They can easily hide the complexity of a process from…

810 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question