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Isoline-Line-Feature with colored areas

#1

Hi all,

i just experimented with the isoline-demo from the samples.

In the screenshot of the sample the area between the isolines is colored (like in a heatmap). Running the sample-code i only get the isolines colored, but the area between the lines is not filled. What kind of style do i have to use to get the areas as in the sample-screenshot.

Any help is appreciated.

Best regards,
Andreas

#2

Follow-Up:

is it possible to get the source-code for the sample’s here http://samples.thinkgeo.com/WebApiEdition/SampleTemplates/visualization/leaflet/#

They do exactly what i want to accomplish.

Regards,
Andreas

#3

Hi Andreas,

You can open our product center and find the samples under Map Suite WebAPI Edition.

And I guess this maybe the sample code which you want: http://wiki.thinkgeo.com/wiki/Source_Code_WebAPIEditionSample_Visualization.zip

Regards,

Don

#4

Hi Don,

i downloaded the WebAPI demos and integrated the methods from OverLayBuilder into my sample-app.

But the code throws an error without giving a hint what is wrong:

        wpfMap1.MapUnit = GeographyUnit.DecimalDegree;
        AddDynamicIsolineLayer();

    private void AddDynamicIsolineLayer()
    {
        LayerOverlay lo = OverlayBuilder.GetOverlayWithIsoLineStyle();
        wpfMap1.Overlays.Add(lo);
        wpfMap1.Refresh();
    }

The methods from OverlayBuilder are taken as is from the WebAPI demo.

The exception thrown is

System.ArgumentException was unhandled
Message: An unhandled exception of type ‘System.ArgumentException’ occurred in WpfDesktopEdition.dll
Additional information: Ein Element mit dem gleichen Schlüssel wurde bereits hinzugefügt. ( An element wth the same key was already added)

Regards,
Andreas

#5

Followup:
I found the error. In the method

    private static IEnumerable<double> GetClassBreakValues(IEnumerable<double> values, int count)
    {
        // Take an average value for creating class breaks.  
        Collection<double> result = new Collection<double>();
        double[] sortedValues = values.OrderBy(v => v).ToArray();
        int classCount = sortedValues.Length / count;
        for (int i = 1; i < count; i++)
        {
            result.Add(sortedValues[i * classCount]);
        }

        return result;
    }

There was a pipe-character in

            result.Add(sortedValues[i  | *classCount]);

Now the demo runs, but doesn’t show any Overlay.

Regards,
Andreas

#6

Hi Andreas,

Are you viewing this sample?

Pasted image846×158 68.9 KB

And please make sure your dll have been updated to the latest version, then update the reference in project.

Regards,

Don

#7

I found the error. There is a file with well-data which is read. This file contains data separated by commas, having points as decimal-char. I’m in germany and here a point is interpreted as a grouping-char. Hence, all geometry-data is wrong as the decimal-point is interpreted wrongly (instead of e.g. 100.234 the value is converted to 100234). I’ve changed the reading-process to use german-language-settings, then the example works.

Maybe you shpuld have a look at the samples and them language-independent.

Regards,
Andreas

#8

Hi Andreas,

Thanks for your report. we will report this issue to our developer team. They will refine this issue in GitHub sample.

Thanks again for this.

Thanks,
Bill