Steema Central

I have 3D data of temperature - ie. temperature as a function of spatial position T(x,y,z) and
would like to have these data plotted.

First I use TContouseries and I would like to have these data plotted as "contineous" data. I have used the
following algorithm with series1 as TContouseries:

Chart1.Chart3Dpercent := 40;
chart1.DepthAxis.Visible := true;

Series1.YPosition := 6;
series1.IrregularGrid := true;

for i := 0 to 100 do
for j := 0 to 200 do
series1.AddXYZ(i/100, j/20,j/100);

series1.Pen.Visible := true;
series1.Pen.Width := 20;

1) I would like the contour plot to be flat but if I reduced the pen.width then
the contineous contours disappear. If I increase the pen.width the plot becomes "thick" and not very
appealing. How can I overcome this difficulty? That is - I want the contour image to be a contenious
plane in a 3D x-y-z chart without this very thick pen.

I would then like to use the TColorgrid plot in order to overcome the problems with
TContourseries.

Using the "editing chart1" dialog box, and using "Series-->>format-->>position-->>plan Y" I can change the
colorgrid so that it is in the xz-plane instead of in the xy-plane.

3) How do I change from the xy-plane to the xz-plane using code during runtime instead of using the
editing chart1 tool dialog box? I mean what is the name of the function that performs this?

4) How do I set the "height" of the location of TColorgrid - Ie. the Y value at which the colorgrid
is located? (for TContourseries I can use "YPosition" but this does not work for TColorgrid)


If I use the algorithm below then the TColorgrid changes from the xz plane to the xy plane automatically
at runtime.

5) I think this is because I use irregulargrid := true. How do I overcome this difficulty? I HAVE to use
irregulargrid := true due to limitations in the my data. How do I maintain the colorgrid in the xz-plane
when using irregulargrid := true

Chart1.Chart3Dpercent := 40;
chart1.DepthAxis.Visible := true;
series1.IrregularGrid := true;

for i := 0 to 100 do
for j := 0 to 200 do
series1.AddXYZ(i/20, j*i/200,j/20);

series1.Pen.Visible := false;



Because of all these problems with Contourseries and Colorgrid, I can make my own contourimage and then
import these contourimages into a teechart using the algorithm below where series1 is a TColorgrid:

var
rect:Trect;
bmp :Tbitmap;
begin

bmp := Tbitmap.Create;
bmp.LoadFromFile('someBMPfile.BMP');

rect.Top := 200;
rect.bottom := 0;
rect.left := 0;
rect.right := 200;

chart1.Canvas.StretchDraw(rect,bmp,10);
chart1.Repaint;
series1.Bitmap := bmp;

However this does not plot the image very good -

6) what is wrong with the algorithm just above here?

I am using TeeChart Pro V. 8.00 Win32 BETA

Hi Friis,

If you are using TeeChart v8 Beta could you please post your inquiries at the newsgroup specially settled for its questions? You'll find the instructions at the e-mail with v8 Beta information.

Thanks in advance.

Hi Friis,

Sorry for the delayed reply. v8 questions were replied at its specific newsgroup. Please find below the answers to the other questions:

5. This seems to be a bug when IrregularGrid is set to true or that irregular grids don't support this feature. I've added it (TV52012000) to our defect list to be fixed/enhanced for future releases.

6. You should do something like what's shown in the All Features\Welcome!\Chart Styles\Statistical\ColorGrid\ColorGrid Bitmap example in the features demo which you'll find at TeeChart's program group created by v7's binary installer.