void
avtLabelRenderer::Render(vtkDataSet *ds)
{
if (ds->GetNumberOfPoints() == 0)
{
debug1 << "avtLabelRenderer::Render: The input dataset had no points!" << endl;
return;
}
//
// For efficiency: if input type is vtkPolyData, there's no
// need to pass it through the geometry filter.
//
if (!inputMap[ds])
{
// we haven't seen this input yet
if (ds->GetDataObjectType() != VTK_POLY_DATA)
{
vtkGeometryFilter *gf = vtkGeometryFilter::New();
gf->SetInput(ds);
input = vtkPolyData::New();
gf->SetOutput(input);
gf->Update();
gf->Delete();
}
else
{
input = vtkPolyData::New();
input->ShallowCopy((vtkPolyData *)ds);
}
inputMap[ds] = input;
}
else
{
// This one is a re-run, so it's safe to re-use whatever
// polydata we decided to use for it last time.
input = inputMap[ds];
}
//
// Create an appropriate MAX_LABEL_SIZE for the data.
//
vtkDataArray *pointData = input->GetPointData()->GetArray(varname);
vtkDataArray *cellData = input->GetCellData()->GetArray(varname);
int biggest = 0;
if (pointData)
biggest = (biggest > pointData->GetNumberOfComponents() ? biggest
: pointData->GetNumberOfComponents());
if (cellData)
biggest = (biggest > cellData->GetNumberOfComponents() ? biggest
: cellData->GetNumberOfComponents());
// Check for Mesh plot
if (biggest == 0)
biggest = 3;
MAX_LABEL_SIZE = 13*biggest;
//
// Render the labels using the derived type's RenderLabels method.
//
RenderLabels();
}
void GuiRenderer::Render() {
RenderPanels();
RenderLabels();
//RenderMenu(Vector2f(100.0f, 100.0f));
}
