Problems with ColorGrid in v2010

[Luke@1962]

I'm having some problems with ColorGrid v2010 having been a long term ActiveX user and upgrading from v7.

1. It adds a row and column to the grids, additional to the data in the series. That is a row and a columns extends beyond the maximum numbers in the data series.

2. Doesn't plot all the grid lines for some grids (the bigger ones).

This release seems quite buggy; the VC++ project update facility didn't work. I had to manually find out the class IDs and then go through all my dialogs changing the v7 IDs over to the v2010 IDs with a text editor. The help files don't link correctly; the Teechart v2010 tutorials chm file tries to link to the v8 .hlp file but can't find it. It should be link to the v2010 equivalents (I'm not sure these have had any significant work performed on them anyway). There have been a number of crashes with the activex control.

I've tried adding a file with screenshots of problems 1 & 2 but couldn't find a file format that would be accepted.

[Yeray]

Hi Luke,

I've tried adding a file with screenshots of problems 1 & 2 but couldn't find a file format that would be accepted.

If you still have these images, they would be helpful.
You can either post your files at news://www.steema.net/steema.public.attachments newsgroup or at our upload page.

[Luke@1962]

Here are some screenshots of the problems in my first post. The data goes to 2 in x and y but the grid adds a row and column so that it goes to 3 in both directions. Colorgrid didn't do this in v7.

colorgrid problems.JPG (33.74 KiB) Viewed 7614 times

This demonstrates the missing gridlines issue by comparing two plots of identical data and identical code (except one is using AXv7 and the other AXv2010)

Missing gridlines

colorgrid problems 2.JPG (82.04 KiB) Viewed 7622 times

[Yeray]

Hi Luke,

1. It adds a row and column to the grids, additional to the data in the series. That is a row and a columns extends beyond the maximum numbers in the data series.

The data goes to 2 in x and y but the grid adds a row and column so that it goes to 3 in both directions. Colorgrid didn't do this in v7.

I'm running this code in TeeChart v7.0.1.4 and v2010.0.0.2 and I got the same result that I think is the expected:

Code: Select all

Private Sub Form_Load()
  TeeCommander1.ChartLink = TChart1.ChartLink
   
  TChart1.Aspect.View3D = False
  TChart1.Legend.Visible = False
  
  TChart1.AddSeries scColorGrid
  
  Dim nCols, nRows, x, z As Integer
  nCols = 3
  nRows = 3
  For x = 0 To nCols - 1
    For z = 0 To nRows - 1
      TChart1.Series(0).asColorGrid.AddXYZ x, 0, z, "", clTeeColor
    Next z
  Next x
  
  TChart1.Series(0).Marks.Visible = True
End Sub

Private Sub TChart1_OnGetSeriesMark(ByVal SeriesIndex As Long, ByVal ValueIndex As Long, MarkText As String)
  If SeriesIndex <> -1 And ValueIndex <> -1 Then
    With TChart1.Series(SeriesIndex)
      MarkText = "(" + Str$(.XValues.Value(ValueIndex)) + ", " + Str$(.YValues.Value(ValueIndex)) + ", " + Str$(.asColorGrid.ZValues.Value(ValueIndex)) + ")"
    End With
  End If
End Sub

Chart1.png (7.44 KiB) Viewed 7614 times

You may be interested in reading the explanation here about how to populate this type of series.

2. Doesn't plot all the grid lines for some grids (the bigger ones).

This demonstrates the missing gridlines issue by comparing two plots of identical data and identical code (except one is using AXv7 and the other AXv2010)

I'm incrementing the nCols and nRows values to 100 (and hiding the marks) and everything looks fine to me:

Chart1.png (8.58 KiB) Viewed 7617 times

Could you please modify the example above so we can reproduce the problem here? Or could you please send us a simple example project we can run as-is to reproduce the problem here?
Thanks in advance.

[Luke@1962]

Thank you for your consideration of my queries and suggested solutions. My code is almost identical to yours (but in C++). I noted that it only added the column and row when the grid spacing was uniform, if non-uniform it wouldn't do it (that is for me but I realise your example (in VB) is uniformly spaced and doesn't cause the issue). Anyway the workaround was setting the axis max and min, not the best but all I could do. I still have random problems with gridlines in colorgrid; sometimes not plotting them at all no matter what I do. But unfortunately don't have any more time for this at the moment and my users (and I) will have to live with it.

[Yeray]

Hi Luke,

If you find time to make a simple example project we can run as-is to reproduce the problem here, we'll be pleased to take a look at it and try to see where is the problem.