The linear transform worked -- I finally figured out how to implement
it. The chart is almost where it should be, except for the X-axis
labels. I need to dynamically define which of two options to use:
J F M A M J J A S O N D (MnthNHLabels) for northern hemisphere sites, and
J A S O N D J F M A M J (MnthSHLabels) for southern hemisphere sites.
The compiler seemed to have no problem with my code:
if lat < 0 then ClimateDataChart.BottomAxis.Marks.Source := MnthSHLabels
else ClimateDataChart.BottomAxis.Marks.Source := MnthNHLabels;
The data source options I have tried, however (TListChartSource and
TUserDefinedChartSource) seem determined to convert the strings to
numbers -- primarily 0. What kind of chart source would allow me to use
the strings above instead? Or is there something else I would need to do?
Thanks again,
Dave
On 7/29/2011 1:45 AM, David M. Lawrence wrote:
On 7/29/2011 1:21 AM, Alexander Klenin wrote:
I see now -- so you actually do NOT want auto-scale, but a fixed scale.
In this case, simply use linear transformation and then Chart.Extent
property.
You will have to calculate scale and offset yourself (once, at
design-time).
(From my quick calculation, you should use scale=0.5 and offset=-90,
but check yourself)
I'll check the linear transform. Those values are what I was thinking
they should be. I'll give them a shot.
--
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David M. Lawrence | Home: (804) 559-9786
7471 Brook Way Court | Fax: (804) 559-9787
Mechanicsville, VA 23111 | Email: d...@fuzzo.com
USA | http: http://fuzzo.com
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