Steema Central

Hi,

Can you indicate whether it is possible to implement simple thematic mapping using TeeChart (webcontrol). I have a table containing a number of records that have a datetime, latitude, longitude and depth values. I want to show the data as a colored series of points or a line on a map. The color of the line or points should give a visual indication of depth (e.g. perhaps moving from a light blue to dark blue the greater the depth value).

Thanks,

Norman

Hi Norman,

I recommend you to have a look at TeeChart's Maps series. TeeChart map format supported is .SHP files. The ESRI Shape (SHP) file format is a vector format created by the Environmental System Research Institute. SHP files support point, multi-point, polygon, polyline and multi-patches. Map series can also use any file format provided you can read them. All map series is about are poligons.

You'll find a mapping example at the live ASP.NET demo at Interacting with Charts\Mapping. ASP.NET demo full project is also included with TeeChart's installation (C:\Program Files\Steema Software\TeeChart for .NET v3\TeeChartForNET). A WinForms version of the mapping example is available at TeeChart's program group and full project can be found at C:\Program Files\Steema Software\TeeChart for .NET v3\Examples\MapProject.

For the kind of chart you mention you may also be interested in having a look at Contour series. You'll find some examples at All Features\Welcome !\Chart styles\Extended\Contour in the features demo available at TeeChart's program group.