XYZGetIsoline

XYZGetIsoline retrieves the isoline x/y coordinates of a 3D dataset.

rmXY = XYZGetIsoline(hData, nIsoValue, nLineIndex)

Return Value

rmXY is a 2 column matrix with the x/y coordinates or 0.0 if the isoline specified does not exist. .. us.params

Parameters

hData

A handle for a dataset created with XYZCreate.

nIsoValue

nIsoValue is the index of the isoline. The index starts with 1. The index of the smallest isoline value is 1.

nLineIndex

nLineIndex is the index of the isoline element, starting with 1.

Example

The following example converts all isolines of a 3D dataset to 2D datasets.

def XYZ_to_XY(hXYZData)
{
    hLayer = GetParent(hXYZData)
    nIso = XYZGetNumberOfIsoValues(hXYZData);
    rvValues=XYZGetIsoValues(hXYZData);
    for (i in 1:nIso) {
        j = 1;
        while (1) {
            xy = XYZGetIsoline(hXYZData, i, j);
            if (len(xy) == 1) {
                break;
            }
            hXY = XYCreate(sprintf("%g", rvValues[i]), xy[;1], xy[;2]);
            LayerAddDataset(hLayer, hXY);
            j = j+1;
        }
    }
}

See also

Overview XYZ-Datasets

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