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高性能圖表控件LightningChart中3D視圖問題解答

翻譯|使用教程|編輯：楊鵬連|2021-04-13 13:15:49.973|閱讀 220 次

概述：本文主要介紹了高性能圖表控件LightningChart 中3D視圖問題（ArgumentOutOfRangeException）解答。

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問：想創建這樣的3D圖形衍生函數圖像，但是卻出現System.ArgumentOutOfRangeException問題，有什么錯誤？

void __3d(vector<int>y) { 
lightningChartUltimate1 = gcnew LightningChartUltimate(); 

lightningChartUltimate1->BeginUpdate(); 
cli::array<SeriesPoint3D>^ points = gcnew cli::array<SeriesPoint3D>(y.size()); 
for (size_t i = 0; i < y.size()-1; i++) { 
points[i].X = i * 0.2; 
points[i].Y = y[i + 1] - y[i]; 
points[i].Z = i * 0.2; 
} 
lightningChartUltimate1->View3D->PointLineSeries3D[0]->Points = points; //System.ArgumentOutOfRangeException:Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index 
lightningChartUltimate1->EndUpdate();                                     
}

回復：需要創建PointLineSeries3D對象并將其添加到集合View3D-> PointLineSeries3D，因為最初的集合為空。

3D圖表Winforms C ++示例一樣發布了它

void __3dchart(vector<int> y)
{
chart3d->BeginUpdate();
chart3d->Parent = tabControl1->TabPages[1];
chart3d->Name = "3D line plot";
chart3d->ActiveView = ActiveView::View3D;
//create Series obj
auto series = gcnew PointLineSeries3D(chart3d->View3D, Axis3DBinding::Primary, Axis3DBinding::Primary, Axis3DBinding::Primary);
series->PointStyle->Shape3D = PointShape3D::Sphere;
series->PointStyle->Size3D->SetValues(1, 1, 1);
series->Material->DiffuseColor = Color::Navy;
series->Material->SpecularColor = Color::Red;
series->Material->SpecularPower = 20;
series->LineVisible = true;
series->LineStyle->AntiAliasing = LineAntialias::Normal;
series->LineStyle->Color = Color::FromArgb(100, Color::Red);
series->LineStyle->Width = 0.2f;
series->LineStyle->LineOptimization = LineOptimization::NormalWithShading;
series->PointsVisible = false;
chart3d->View3D->PointLineSeries3D->Add(series);//add series

auto series1 = chart3d->View3D->PointLineSeries3D[0];
        series1->Clear();//clear for new  points
cli::array<SeriesPoint3D> ^ points = gcnew cli::array<SeriesPoint3D>(y.size()); 
vector<double> yz;//for max min XYZ correction
for (size_t i = 0; i < y.size() - 1;i++) {
points[i].X = points[i].Z = i*0.2;
double v = points[i].Y =  y[i+1] - y[i];
yz.push_back(v); 
}
//XYZ correction
chart3d->View3D->YAxisPrimary3D->Maximum = *std::max_element(std::begin(yz), std::end(yz));
chart3d->View3D->YAxisPrimary3D->Minimum = *std::min_element(std::begin(yz), std::end(yz));
chart3d->View3D->XAxisPrimary3D->Maximum = yz.size()*0.2;//maxX
chart3d->View3D->ZAxisPrimary3D->Maximum = yz.size()*0.2;//maxZ

series1->Points = points;
chart3d->EndUpdate();
}

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