/// <summary>
/// Happens if the tool is activated.
/// </summary>
/// <param name="active"></param>
/// <returns></returns>
protected override Task OnToolActivateAsync(bool active)
{
// get the first selected raster layer
var selectedRasterLayer = ActiveMapView.GetSelectedLayers().OfType <BasicRasterLayer>().FirstOrDefault();
QueuedTask.Run(() =>
{
// get the raster from layer
_selectedRaster = selectedRasterLayer?.GetRaster();
if (selectedRasterLayer?.GetColorizer() is CIMRasterRGBColorizer)
{
// if the rgb renderer is used get the index of the band used to render the reb color component
var rgbColorizer = selectedRasterLayer?.GetColorizer() as CIMRasterRGBColorizer;
_bandindex = rgbColorizer.RedBandIndex;
}
else if (selectedRasterLayer?.GetColorizer() is CIMRasterStretchColorizer)
{
// if the stretch renderer is used get the selected band index
var stretchColorizer = selectedRasterLayer?.GetColorizer() as CIMRasterStretchColorizer;
_bandindex = stretchColorizer.BandIndex;
}
});
RasterValuesPaneViewModel.Show();
return(base.OnToolActivateAsync(active));
}
/// <summary>
/// Happens if the tool is activated.
/// </summary>
/// <param name="active"></param>
/// <returns></returns>
protected async override Task OnToolActivateAsync(bool active)
{
// get the first selected raster layer
var selectedRasterLayer = ActiveMapView.GetSelectedLayers().OfType <BasicRasterLayer>().FirstOrDefault();
_bandindex = await QueuedTask.Run(() =>
{
// get the raster from layer
_selectedRaster = selectedRasterLayer?.GetRaster();
var colorizer = selectedRasterLayer?.GetColorizer();
var str = colorizer.ToJson();
if (selectedRasterLayer?.GetColorizer() is CIMRasterRGBColorizer)
{
// if the rgb renderer is used get the index of the band used to render the reb color component
var rgbColorizer = selectedRasterLayer?.GetColorizer() as CIMRasterRGBColorizer;
return(rgbColorizer.RedBandIndex);
}
else if (selectedRasterLayer?.GetColorizer() is CIMRasterStretchColorizer)
{
// if the stretch renderer is used get the selected band index
var stretchColorizer = selectedRasterLayer?.GetColorizer() as CIMRasterStretchColorizer;
return(stretchColorizer.BandIndex);
}
return(-1);
});
if (_bandindex > -1)
{
RasterValuesPaneViewModel.Show();
}
else
{
MessageBox.Show("For pixel insp. sample, please use either a stretch or RGB colorizer",
"Pixel Inspector");
}
}